Monoprice Pure Tube Stereo Amplifier with Bluetooth, Line and Phono Inputs, and Qualcomm aptX Audio
Product # 27222
UPC # 889028061879
$399.99
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Browse 214 questions
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Come with a power cord?
A shopper
on Feb 25, 2022
The Monoprice Pure Tube Stereo Amplifier comes with the power cord. Also includes the required bluetooth antennae and tubes. Mine arrived with tubes installed.
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- Cameron W on Feb 25, 2022
- Purchased on Feb 14, 2022
Yes, mine came with a power cord and the tubes installed in the sockets.
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- Jaime W on Mar 29, 2022
- Purchased on Jan 3, 2022
Yes - mine came with a power cord (appropriate to US mains plugs)
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- Andy on Feb 25, 2022
- Purchased on Jan 10, 2022
Yes, comes with a standard 3 prong computer power cable.
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- Sasha T on Mar 29, 2022
- Purchased on Dec 29, 2021
Yes, this amp does come with power cord
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- New User U on Mar 30, 2022
- Purchased on Jan 23, 2022
The pure DOES come with a power cord.
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- Ryan R on Mar 29, 2022
- Purchased on Feb 27, 2022
Yes, it comes with the power cord.
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- William B on Mar 29, 2022
- Purchased on Feb 19, 2022
yes, it comes with a power cord.
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- Loughner jr Daniel f on Mar 31, 2022
- Purchased on Jan 29, 2022
Yes, it comes with a power cord.
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- Devyn D on Mar 29, 2022
- Purchased on Feb 20, 2022
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How long do you need to let this amp warm up before playing music?
A shopper
on Apr 4, 2019
BEST ANSWER: Not long....Maybe a minute or two.
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- New User U on Apr 4, 2019
- Purchased on Nov 11, 2018
BEST ANSWER: Not long....Maybe a minute or two.
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- New User U on Apr 4, 2019
- Purchased on Nov 11, 2018
It doesn't need a long warm-up period... I usually let mine warm up for about 5_10 minutes before I play it. However, it sounds good right away, but seems more stable and consistent after a short warm-up...
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- Larry A on Apr 5, 2019
- Purchased on Nov 29, 2018
about as long as it takes to que up the L.P. You want to play. Honestly, I'm sure some purists would define a warm up time, but I haven't felt like it needs much of any. Love this amp!
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- Timothy G on Apr 5, 2019
- Purchased on Oct 19, 2018
I usually turn it on, then spend a minute or so choosing what record I want to play, and then I start the record.
Sounds great off the bat.
Sounds great off the bat.
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- Dominick D on Apr 4, 2019
- Purchased on Nov 3, 2018
Tubes need about 20 minutes to reach full potential. If you listen to tube amps on a regular basis, you'll hear instantly when the the amp opens up.
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- Sharon I on Jun 3, 2023
It honestly takes seconds and sounds great. I was skeptical at first because of the price, but I’m really happy with it.
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- Aaron M on Apr 4, 2019
- Purchased on Dec 1, 2018
Around a minute. You will see the tubes light up. It won't hurt them if you start playing music before they warm up.
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- Thomas H S on Apr 4, 2019
- Purchased on Nov 5, 2018
I've never really timed it, but if I had to guess - 3 to 5 seconds. In 7 to 10 seconds it's ready to rock fully.
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- Brian B on Apr 5, 2019
- Purchased on Jul 20, 2018
I don’t, the tubes will warm up regardless when I start my music and does no harm!
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- patrick d on Apr 4, 2019
- Purchased on Nov 24, 2018
About 10 seconds. By time I place the stylus on a record, it's ready.
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- Kiki D on Apr 4, 2019
- Purchased on Sep 18, 2018
The amp warms up in seconds; there isn't really an appreciable wait.
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- Christopher C on Apr 4, 2019
- Purchased on Dec 6, 2018
I have not had an issue in warm up. I turn it on and let er rip
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- Jeff B on Apr 4, 2019
- Purchased on Nov 27, 2018
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Will the AUX/Line input accept a CD or tape player?
A shopper
on Nov 7, 2018
BEST ANSWER: Yes , it will work just fine.
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- Allan L on Nov 7, 2018
- Purchased on Jun 3, 2018
BEST ANSWER: Yes , it will work just fine.
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- Allan L on Nov 7, 2018
- Purchased on Jun 3, 2018
yes. if you want better sound you will have to invest in better tubes. the Chinese tube are not that good. the rca's will come off easy if you use a tight high quality rca cable because there cheap rca female connectors. the Bluetooth connector can break very easy when tilting back. it sounds good if you got high efficient speakers. I got 92db speakers an it not loud enough for me. 94 an up speakers an it should be ok. the 10 watts per channel should be enough watts for most people if running 92db efficient speakers an up. my speakers are jbl 590 speakers. tubes do make speakers sound better than solid state amps. its a little more analog an warm. I need more power so im going to bi-amp my speakers with another mon0price tube amp. 20watts a channel an 92db will get loud enough for most people. the 10 watts a channel is proberly just as loud as the 25 watts a channel on the hybrid tube amps monoprice is selling. all tube amp will sound a lot better than a hybrid tube amp.
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- tim s on Nov 7, 2018
- Purchased on Sep 24, 2018
Yes it will but you may need some form of output control as the CD player may have too high an input and cause the amplifier to clip. Mine did and I added an inline 20dB cut to resolve the issue. With the tape player you should be able to control the output and should work fine.
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- Patrick M on Nov 7, 2018
- Purchased on May 9, 2018
Yes a will work with about any audio input you have, cd player, dvd player, blueray player and phono wich is the one I use for my turntable to play my vinyl record collection and the best sound of all.
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- Manny on Nov 7, 2018
- Purchased on Jul 20, 2018
The manual says it will, and gives specific instructions for setup.
By the way, this is a superior amp, in my opinion.
By the way, this is a superior amp, in my opinion.
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- Kiki D on Nov 7, 2018
- Purchased on Sep 18, 2018
Yes it will. You can also use a phonopreamp from a turntable and that sounds great too
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- Marty on Nov 7, 2018
- Purchased on Jul 13, 2018
Short answer - Yes. I've hooked up a portable CD player and it works a treat.
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- Brian B on Nov 7, 2018
- Purchased on Jul 20, 2018
Yes, it should accept any line level input.
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- Jerry T on Nov 23, 2018
- Purchased on Oct 22, 2018
Yes! I’m playing a CD as I write this.
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- Timothy G on Nov 7, 2018
- Purchased on Oct 19, 2018
Yes, I believe that is its purpose.
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- Randy C on Nov 7, 2018
- Purchased on Jul 22, 2018
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Why is the Bluetooth function so much louder than the phono function?
Cullen D
on Oct 2, 2018
BEST ANSWER: Both the Bluetooth and Line inputs are much higher due to the sensitivity. I had to incorporate a 20DB reduction using a line device to overcome the output of the CD player plugged into the line input. Should be able to adjust for that on the Bluetooth device itself via the volume control. It is a problem as it will cause the amplifier to clip continuously.
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- Patrick M on Oct 3, 2018
- Purchased on May 9, 2018
BEST ANSWER: Both the Bluetooth and Line inputs are much higher due to the sensitivity. I had to incorporate a 20DB reduction using a line device to overcome the output of the CD player plugged into the line input. Should be able to adjust for that on the Bluetooth device itself via the volume control. It is a problem as it will cause the amplifier to clip continuously.
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- Patrick M on Oct 3, 2018
- Purchased on May 9, 2018
Im not sure what you're trying to connect through the phono line but it is primarily for a turntable wherein the sound is picked up and transmitted through the cartridge. The sound volume and quality will differ dependent on what kind of cartridge, turntable and quality of rca cable you're using.
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- Philippe I on Oct 3, 2018
- Purchased on Apr 14, 2018
In my set up volume is about the same, you may have a bad cartridge in your turntable
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- Manny on Oct 2, 2018
- Purchased on Jul 20, 2018
Its definitely louder on mine too. But I think the line in is the quietest. I usually run my turntable through a separate phono amp, fed in to the line in. Switching to the built in phone stage I didn't have to turn the volume knob up as far (to 12 o'clock position versus 1 or 2 o'clock) to get to my comfortable loud volume level. This is with 94db sensitivity speakers. By the way, the built in phono stage sounds decidedly muddy. I strongly recommend the ART DJ Pre II phono amp. And worth springing the same money again for an iPower low noise DC power supply for the DJ Pre. Remarkable improvement in already superior sound quality.
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- Jonathan C on Oct 3, 2018
- Purchased on Jun 30, 2018
I’m not an expert on home audio systems but I do own this amplifier and have a basic understanding of how it works. While using the phono input with a turntable the built in phono tube pre-amp is being utilized. While using the BT input a solid state pre-amp is being utilized instead of the tube pre-amp. In this situation the solid state pre-amplified music from the BT input will be “louder”. This is the same case with higher end component systems too. There is nothing wrong with this situation; you’re experiencing the difference between true tube amplification and dual state amplification.
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- Lee Q on Oct 2, 2018
- Purchased on May 18, 2018
Sounds like each of these units is different in terms of input levels. My bluetooth barely makes the VU meter move (tried 2 phones and a desktop PC), but the line-in with a CD player attached pegs the VU meter at the max stop regularly, potentially damaging the amp/speakers due to clipping. Phono is somewhere in between. Very inconsistent. The question and answers above describe various level differences---they're all over the map. Quality control problem???
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- Daniel O on Jun 12, 2019
- Purchased on Apr 7, 2018
Interesting. I’ve noticed the opposite with my system. I get quite a bit more volume through my TT. On that note, I’m a bit disappointed with the bluetooth. Just ordered a chromecast audio to connect via the line in. They seem to have worlds better audio quality so hoping for good results.
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- Ethan F on May 16, 2019
I am not 100% why that is. I actually bought a separate phono tube preamp and then went into the auxiliary input and can’t tell a difference.
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- Marty on Oct 3, 2018
- Purchased on Jul 13, 2018
I’m thinking because it’s playing digital music.
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- Michael B on Oct 3, 2018
- Purchased on May 12, 2018
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Do most people experience some level of hum?
Bob S
on Jan 31, 2021
BEST ANSWER: Owned for 5 weeks now- had a low level of hum with the original tubes. $60 of tubes later no at all.
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- Steven M on Jan 31, 2021
- Purchased on Dec 16, 2020
what was your upgrade? a good tube amp will not hum. Maybe one has to spend well over 1000.00 usd for a good amp. I have chalked it up to you get what you pay for but would love to hear your conclusions before i throw in the towel.
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- New User U on Feb 5, 2021
I got a matched quad of JJ EL 84s from Tube Depot ($50) and a set of 3 NOS GE 5670s from Antique Electronic Supply ($19) - so less shipping $60 but ~$70 total. I noticed that the orginal tubes glowed at different intensities and appeared asymetrical in a dark room, and the amp had a slight hum. The new JJs and GEs all have a similar symetrical appearance, and I hear no background noise at all. Not only does it sound better, it looks better too.
My tubes were from a place on Canada, where they actually match the triodes of the preamp tubes for an extra charge. The perfect tubes I found were JAN-GE 5670W preamp tubes and ElectroHarmonix EL84EH amp tubes, all matched with each other for an extra charge. I could not BELIEVE the amount of improvement. It is night and day, and volume ceiling is greatly increased as well. This was a 3-digit extra expense but it is immensely worth it.
My first amp had noticeable hum, then I requested a replacement. The new one came without any humming. I think it is totally by chance, but the question is how much chance you will get a Not-Humming amp. I have it around 3 months and am very happy about it.
BEST ANSWER: Owned for 5 weeks now- had a low level of hum with the original tubes. $60 of tubes later no at all.
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- Steven M on Jan 31, 2021
- Purchased on Dec 16, 2020
what was your upgrade? a good tube amp will not hum. Maybe one has to spend well over 1000.00 usd for a good amp. I have chalked it up to you get what you pay for but would love to hear your conclusions before i throw in the towel.
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- New User U on Feb 5, 2021
I got a matched quad of JJ EL 84s from Tube Depot ($50) and a set of 3 NOS GE 5670s from Antique Electronic Supply ($19) - so less shipping $60 but ~$70 total. I noticed that the orginal tubes glowed at different intensities and appeared asymetrical in a dark room, and the amp had a slight hum. The new JJs and GEs all have a similar symetrical appearance, and I hear no background noise at all. Not only does it sound better, it looks better too.
My tubes were from a place on Canada, where they actually match the triodes of the preamp tubes for an extra charge. The perfect tubes I found were JAN-GE 5670W preamp tubes and ElectroHarmonix EL84EH amp tubes, all matched with each other for an extra charge. I could not BELIEVE the amount of improvement. It is night and day, and volume ceiling is greatly increased as well. This was a 3-digit extra expense but it is immensely worth it.
My first amp had noticeable hum, then I requested a replacement. The new one came without any humming. I think it is totally by chance, but the question is how much chance you will get a Not-Humming amp. I have it around 3 months and am very happy about it.
Hum disappeared when I connected grounding cable to my turn table
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- New User U on Apr 27, 2022
- Purchased on Apr 9, 2022
I just got the amp and from the start noticed the hum coming from the speakers. I checked all the wiring and possible sources of interference. I even moved the unit to where it was not near any other electronics. The hum persisted. I contacted their help line and after answering their questions, they decided it was a factory defect. I’m sending the amp back for a replacement but worry it may hum too.
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- Guillermo C on Jan 31, 2021
- Purchased on Jan 8, 2021
I have! I received my Monoprice Pure Tube Amp a couple of weeks ago. Speakers were delayed, just received 2/6. Hooked all up and HUM - significant on the Left, much less on the right. The hum is not volume or input source dependent, so it must be the tubes or the capacitors. I have a note into Monoprice customer support, waiting for them to respond.
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- YVDIY on Feb 8, 2021
- Purchased on Jan 15, 2021
I do have a slight amount of (sound like a 60hz hum) in my amp. I do know most all tube amps do, some more than others. Mine does not interfere my music enjoyment, as the hum is overshadowed by my listenable levels, which are moderate to conservative. For the price I can't complain. See my review which has more detail. Thanks
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- Mark S on May 17, 2021
The first unit I got had hum across both channels. Replacement unit had the same problem. I have ordered a tube upgrade kit and will see how it works with new tubes.
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- Ryan A on Jan 31, 2021
- Purchased on Jan 11, 2021
interested in the outcome. a good tube amp will not hum. Maybe one has to spend well over 1000.00 usd for a good amp. I have chalked it up to you get what you pay for but would love to hear your conclusions.
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- New User U on Feb 5, 2021
I just ordered some to replace both sets. for the first time i just hooked it up as a pre amp and am really liking it thus far. I may keep it just for that.
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- New User U on Feb 5, 2021
Yes, some hum is normal, but it should go away when you're playing music.
If you hear it while playing music, you may have a grounding issue.
If you hear it while playing music, you may have a grounding issue.
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- Christian B on Jan 31, 2021
- Purchased on Dec 18, 2020
I do, but as a musician I am used to tube him. Once the music starts, it disappears 👍🏻
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- Paul N on Jan 31, 2021
- Purchased on Dec 26, 2020
I don’t know if most people do. But this amp does hum quite a bit for me.
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- Devin M on Jan 31, 2021
- Purchased on Dec 30, 2020
a good tube amp will not hum. Maybe one has to spend well over 1000.00 usd for a good amp. I have chalked it up to you get what you pay for
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- New User U on Feb 5, 2021
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My device came with tubes installed, yet the manual states "to prevent damage during shipping, your Pure Tube Stereo Amp ships with the tubes uninstalled" then provides instructions on how to unbox and handle the tubes. Is this what anyone else experienced?
New User U
on Apr 27, 2022
BEST ANSWER: Mine came shipped with the tubes installed. The amp had a light hum for a few weeks but the hum went away.
Love this little amp! Hope you enjoy yours.
Love this little amp! Hope you enjoy yours.
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- Dean A on May 10, 2022
- Purchased on Dec 27, 2021
BEST ANSWER: Mine came shipped with the tubes installed. The amp had a light hum for a few weeks but the hum went away.
Love this little amp! Hope you enjoy yours.
Love this little amp! Hope you enjoy yours.
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- Dean A on May 10, 2022
- Purchased on Dec 27, 2021
Yes, I have had 5 of these units ship to me; 2 of the hybrids, and 3 of the all-tube, every unit was received tubes installed and intact.
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- Shawn Michael F on May 10, 2022
- Purchased on Nov 8, 2021
My tubes also came installed. Amplifier sounds beautiful. Listen to it every day. Couldn’t be more pleased.
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- Jaime W on May 10, 2022
- Purchased on Jan 3, 2022
Mine came the same way. It was well packaged and arrived in great condition even with the tubes installed.
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- Mike on May 10, 2022
- Purchased on Dec 4, 2021
Yes, the one I got (actually all three) came with the tubes installed. Check for the 60Hz hum or buzz.
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- Krzysztof F on May 10, 2022
- Purchased on Dec 16, 2021
Yes, our receiver cane the same way with the tubes installed.
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- Eric C on May 10, 2022
- Purchased on Dec 19, 2021
Yes. Mine were installed as well. No issues
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- scott j k on May 10, 2022
- Purchased on Dec 4, 2021
Yes, that's how mine came - ready to go.
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- Sasha T on May 10, 2022
- Purchased on Dec 29, 2021
MIne came with tubes not installed
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- John H on May 10, 2022
- Purchased on Nov 23, 2021
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Does the RCA "pre-out" signal adjust with the volume knob? (So a subwoofer can be controled with the speaker volume).
A shopper
on Apr 22, 2018
BEST ANSWER: Yes. I have a Klipsch powered subwoofer connected to this amplifier and the volume of the bass increases as the tube's volume knob is turned up.
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- New User U on Apr 23, 2018
- Purchased on Mar 30, 2018
BEST ANSWER: Yes. I have a Klipsch powered subwoofer connected to this amplifier and the volume of the bass increases as the tube's volume knob is turned up.
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- New User U on Apr 23, 2018
- Purchased on Mar 30, 2018
Once and for all - I have a self powered sub running off of the pre-out. I unplugged the main speakers, and adjusted the volume on the amp, which increased/decreased the pre-out accordingly. Which is why it's called a pre-out! YES it does adjust with the volume control on the front of the amp!
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- New User U on Apr 29, 2020
- Purchased on Apr 23, 2020
I just got this device recently and I love its simple design and the retro way that it looks. I have it set up as a secondary system that I use in my workshop. It is connected to a pair of older Polk Audio speakers that I've had for years and they all sound great together, so I'm sure after the unit and tubes 'break in' a bit more, I'll appreciate the sound even more.
Unfortunately, I don't have a subwoofer connected so I can't say this with 100% certainty, but I have a long history with various stereo components and I know that typically the pre-out (pre-amplified) signal is controlled by the volume on the preamp, as external amps (and sometimes subwoofers) often do not have their own volume control.
Sorry to not be more solid with my answer, but I don't think you will be disappointed if you decide to purchase this amp.
Good luck!
Unfortunately, I don't have a subwoofer connected so I can't say this with 100% certainty, but I have a long history with various stereo components and I know that typically the pre-out (pre-amplified) signal is controlled by the volume on the preamp, as external amps (and sometimes subwoofers) often do not have their own volume control.
Sorry to not be more solid with my answer, but I don't think you will be disappointed if you decide to purchase this amp.
Good luck!
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- Rob G on Apr 23, 2018
- Purchased on Apr 4, 2018
According to the manual, the Pre-Out jacks are unaffected by the volume control. This seems odd to me, as many external amps do not have their own volume, but most subs do, so this would allow for more consistent bass control by setting the volume on the sub and 'forgetting' it.
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- Rob G on Apr 23, 2018
- Purchased on Apr 4, 2018
I believe it does; my pre-out connects to M&K subwoofer and the power amp drives four Klipsch speakers. This setup works amazingly well at any volume level. The sub has plenty of power to handle bass but it blends into the room without drawing attention to itself
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- Mark on Apr 23, 2018
- Purchased on Feb 15, 2018
No, the preamp out does not control the volume of the subwoofer, you can adjust it using the tone control.
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- Nicanor M on Apr 23, 2018
- Purchased on Nov 13, 2017
No...it does not adjust with the volume knob.
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- H E on Apr 23, 2018
- Purchased on Mar 30, 2018
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Someone bought me a pair of Sony ssc5 Bookshelf Spekers. I was looking for an intergraded amp. Yamaha 301 or emotivas TA-100. Then I came across this and always wanted to try a tube amp. So is this considered an intergraded amp? Do I need a DAC? Will the 10 Watts be enough?
frank c
on Dec 26, 2017
BEST ANSWER: The Pure tube amp is integrated with respect of being a preamp and power amp in one unit. It does not have a DAC built in. If you need one, you could find one separately. The 10 watts of tube power is plenty for most music listening. If extreme loudness is something you want, this may not do it for you. Its great for me. I replaced the stock tubes with Wathen CryoTone tubes for the prefect audiophile sound. That doesn't mean the stock tubes are not good. The Pur Tube amp has great build quality and I enjoy the depth and clear sound. It is much more than "warm sounding."
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- Don on Dec 26, 2017
- Purchased on Nov 4, 2017
Did you upgrade the EL84 and the 6N3 tubes? I just bought the amp so haven't listened to it as yet as was curious what I should be prepared for as an upgrade. Have a good amount of vintage equip (no tube amp's thus far though) so will be curious of the sound.
I see that Wathen carries the EL84-WC but what did you replace the 6N3 tubes with? I don't see that Wathen carries those.
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- New User U on Sep 23, 2019
BEST ANSWER: The Pure tube amp is integrated with respect of being a preamp and power amp in one unit. It does not have a DAC built in. If you need one, you could find one separately. The 10 watts of tube power is plenty for most music listening. If extreme loudness is something you want, this may not do it for you. Its great for me. I replaced the stock tubes with Wathen CryoTone tubes for the prefect audiophile sound. That doesn't mean the stock tubes are not good. The Pur Tube amp has great build quality and I enjoy the depth and clear sound. It is much more than "warm sounding."
- Reply(2)
- Inaccurate
- Don on Dec 26, 2017
- Purchased on Nov 4, 2017
Did you upgrade the EL84 and the 6N3 tubes? I just bought the amp so haven't listened to it as yet as was curious what I should be prepared for as an upgrade. Have a good amount of vintage equip (no tube amp's thus far though) so will be curious of the sound.
I see that Wathen carries the EL84-WC but what did you replace the 6N3 tubes with? I don't see that Wathen carries those.
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- New User U on Sep 23, 2019
This is a pure tube amp so it is not integrated. It has a pretty good DAC built in with the blue tooth. The 10 Watts is plenty to drive the Sony speakers. Most listening levels is only 1 true watt which is pretty loud. The sound of this amp is euphoric because it is a true tube amp. The sound is smooth and it takes out the edgy sound that digital music produces.
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- CHRIS P on Dec 26, 2017
- Purchased on Nov 6, 2017
No dac needed and there’s plenty of power. I have this and the hybrid version. To me, the pure tube is best for attached devices like a media player or turntable whereas the hybrid is best for Bluetooth listening. Both are fantastic and powerful.
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- freakydrew on Dec 26, 2017
- Purchased on Nov 27, 2017
Yes, it’s a great integrated amp. You will need a DAC if you are not connecting with Bluetooth. 10 watts are enough to drive your neighbors crazy.
P2
P2
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- Paul P on Dec 26, 2017
- Purchased on Nov 27, 2017
No need for a DAC. It’s an amp and preamp and the 10 Watts is quite loud in a room. I’m running some small klipschs and it sounds awesome with my turntable.
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- David A on Dec 26, 2017
- Purchased on Nov 27, 2017
SO I'd assume, that a pair o'Klipsch RB-81 II's would be good with this amp? And the 10w would be more than enough for occasional mid-high volume listening sessions as well? Thanks.
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- New User U on Jan 11, 2018
When someone says 10 watts is plenty of power, make sure you know it's 10 watts at 4 ohms - not 8 ohms like most common speakers on the market are rated.
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- New User U on Jul 28, 2019
- Purchased on Jul 17, 2019
Yes this is an integrated amp. It has a phono imput and an auxiliary input. It also has Bluetooth so you can stream music to it as well.
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- Jason W on Dec 26, 2017
- Purchased on Dec 11, 2017
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I just puchased this amp. I have not recieved it yet but am looking forward to it based on the reviews I have read. My question deals with the tube preamp section. I usually employ a separate phono stage for my turntable (an Audio Technica AT LP3 fully automatic) . I currently have an Art DJ Pre II that is solid state. If I used this in conjunction with the amps tube preamp section by utilizing the aux inputs, would I still get the warmth and depth of sound that tubes are known for, or would the Art detract from the sound since it is a solid state phono stage instead of a tube phono stage? Dumb question I know, but I thought I should ask anyway
Charlie D
on Nov 4, 2018
BEST ANSWER: Sounds like you already know the answer.
Just as it warms up the bluetooth signal (we all agree that BT is the worst type of audio signal) it will warm up your solid state preamp and make your vinyl sound even better.
Just as it warms up the bluetooth signal (we all agree that BT is the worst type of audio signal) it will warm up your solid state preamp and make your vinyl sound even better.
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- Dave L Staff on Nov 5, 2018
BEST ANSWER: Sounds like you already know the answer.
Just as it warms up the bluetooth signal (we all agree that BT is the worst type of audio signal) it will warm up your solid state preamp and make your vinyl sound even better.
Just as it warms up the bluetooth signal (we all agree that BT is the worst type of audio signal) it will warm up your solid state preamp and make your vinyl sound even better.
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- Dave L Staff on Nov 5, 2018
I have a ART DJ Pre II phono preamp that I use with this amp. It is decidedly higher quality than the built in phono pre amp. It sounds even better if you get an iPower low noise DC power supply for the DJ Pre. Every aspect of the sound improves - stereo imaging, dynamics ... I'm totally sold on power conditioning as a result of this experiment.
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- Jonathan C on Apr 29, 2019
- Purchased on Jun 30, 2018
Good question. The ART solid state preamp shouldn't sound nearly as good as the tube preamp. The tube pre sounds natural, clear and less gritty. I would go directly into the phono inputs. I upgraded the tubes to Wathen audiophile tubes. Not cheap but definitely worth it.
Hope that helps
Hope that helps
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- Don on Nov 5, 2018
- Purchased on Sep 27, 2018
I found the built in pre-amp warm and satisfactory and sold my.precious phono preamp (pro-ject)
Why don't you try both ways and decide which sounds better to you?
Why don't you try both ways and decide which sounds better to you?
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- Jeff W on Nov 5, 2018
- Purchased on Nov 24, 2017
Wouldn’t you be running two phono preamp stages then? Maybe i’m confused. But if I’m not you’re probably just gonna get a really high gain distorted output. Right?
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- Bryan L on Nov 6, 2018
- Purchased on Nov 5, 2017
Yes, it will get that tube flavor whatever input you use. But using your phono amp should be better than the built in one
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- New User U on Nov 5, 2018
- Purchased on Mar 5, 2018
I use a phono stage tube amp and then into the mono price. Sounds great. I prefer it to the on-board phono stage
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- freakydrew on Nov 5, 2018
- Purchased on Nov 27, 2017
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I plan to use a subwoofer and connect it to the pre-outs which from my current understanding is okay. However I plan to connect my turntable to the phono input and was wondering if I will be able to just go turntable---> phono input------>speakers or if I will need to go turntable--->preamp----->phono input------>speakers? Also I was wondering if it would be possible to connect my PC to the AUX inputs as well? This will be my first time setting up something like this and I just wanted to make sure I have all the components that I will be needing.
New User U
on May 21, 2020
BEST ANSWER: This amplifier has a built in phono preamp, so yes you plug the turntable directly into the phono input without the need for a separate preamp.
Also, yes you can directly plug the audio out of a PC to the aux input on the amp. Depending on your PC setup, you'll probably need a 1/8" stereo to RCA cable. I would just make sure you have the volume set to a low level on the PC when you first try it to avoid blasting. Remember, you'll have 2 volume controls.. 1 on the amp and 1 on the PC.
Also, yes you can directly plug the audio out of a PC to the aux input on the amp. Depending on your PC setup, you'll probably need a 1/8" stereo to RCA cable. I would just make sure you have the volume set to a low level on the PC when you first try it to avoid blasting. Remember, you'll have 2 volume controls.. 1 on the amp and 1 on the PC.
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- Phil W on May 21, 2020
- Purchased on Dec 17, 2019
BEST ANSWER: This amplifier has a built in phono preamp, so yes you plug the turntable directly into the phono input without the need for a separate preamp.
Also, yes you can directly plug the audio out of a PC to the aux input on the amp. Depending on your PC setup, you'll probably need a 1/8" stereo to RCA cable. I would just make sure you have the volume set to a low level on the PC when you first try it to avoid blasting. Remember, you'll have 2 volume controls.. 1 on the amp and 1 on the PC.
Also, yes you can directly plug the audio out of a PC to the aux input on the amp. Depending on your PC setup, you'll probably need a 1/8" stereo to RCA cable. I would just make sure you have the volume set to a low level on the PC when you first try it to avoid blasting. Remember, you'll have 2 volume controls.. 1 on the amp and 1 on the PC.
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- Phil W on May 21, 2020
- Purchased on Dec 17, 2019
Connect subwoofer to pre-out RCA.
Connect turntable to phono input (I have my turntable grounded to a screw on the backside of the amp).
Connect computer to Aux input.
You should be good to go. Mine is set up the exact same way and works well.
Connect turntable to phono input (I have my turntable grounded to a screw on the backside of the amp).
Connect computer to Aux input.
You should be good to go. Mine is set up the exact same way and works well.
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- Bradley R on May 21, 2020
- Purchased on Mar 29, 2020
You do not need a phono preamp. You can connect directly to the Phono input. You connect your PC to the AUX input if your PC has line level output or even from headphone jack with proper adapters.
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- Reginaldo M on May 21, 2020
- Purchased on Mar 24, 2020
I didn't need a pre amp to use a turn table. I haven't tried to connect my PC. I will say that the sound is amazing!!
It is well worth it.
It is well worth it.
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- Kristiann g on May 21, 2020
- Purchased on Mar 28, 2020
Everything sounds like a good plan with the exception of connecting the PC. Might need a DAC for the PC connection.
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- Brent A on May 21, 2020
- Purchased on Feb 22, 2020
I'm using my phone microphone and this is so not working on well I figure out another way to get you an answer
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- Bob S on May 21, 2020
- Purchased on Apr 1, 2020
I kind of have the same situation.
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- Bob S on May 21, 2020
- Purchased on Apr 1, 2020
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So I don't need a preamp for my turntable if I get this unit?
A shopper
on Nov 9, 2020
BEST ANSWER: No preamp required. RCA jack, secure grd wire to case screw. Patience on breaking in the tubes, 2 weeks of 8 hr/day 40-50% volume.
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- ALLbBAK on Nov 9, 2020
- Purchased on Jan 31, 2018
BEST ANSWER: No preamp required. RCA jack, secure grd wire to case screw. Patience on breaking in the tubes, 2 weeks of 8 hr/day 40-50% volume.
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- ALLbBAK on Nov 9, 2020
- Purchased on Jan 31, 2018
That's correct. This amplifier has two stages thus has a pre amp built in so you do not need a separate pre amp.
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- Bryan N on Nov 13, 2020
- Purchased on Apr 21, 2020
No it has phono inputs, pretty sure the middle preamp
tube dual triode is for phono. Didn’t trace out.
tube dual triode is for phono. Didn’t trace out.
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- Leslie C on Nov 10, 2020
- Purchased on Apr 15, 2020
No you don’t. Plug it directly to the phono input, the amplifier has a built in preamp
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- Nick K on Nov 9, 2020
- Purchased on Apr 25, 2020
Correct. This has a built in pre amp jack to plug your turntable directly in to.
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- Michael F on Nov 10, 2020
- Purchased on May 2, 2020
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What are the best speakers for this amp? What ohm rating is most compatible?
A shopper
on Oct 9, 2022
BEST ANSWER: using this amp with Klipsch Heresy I speakers. never heard the speakers sound so vibrant. amp really sets a nice sound stage for just stereo output. also plug in a klipsch 10" woofer.
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- James H on Oct 17, 2022
- Purchased on Mar 17, 2022
BEST ANSWER: using this amp with Klipsch Heresy I speakers. never heard the speakers sound so vibrant. amp really sets a nice sound stage for just stereo output. also plug in a klipsch 10" woofer.
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- James H on Oct 17, 2022
- Purchased on Mar 17, 2022
I have used 3 different speakers with this amp: SVS Prime Bookshelf 8 ohms, 87 Sensitivity
Emotiva B1+ 8 ohms. 86 Sensitivity
Emotiva T2+ 4 ohms. 91 Sensitivity
All sounded excellent! The speaker sensitivity is key. For tube amplifiers a Sensitivity rating of 86 or higher is best.
Emotiva B1+ 8 ohms. 86 Sensitivity
Emotiva T2+ 4 ohms. 91 Sensitivity
All sounded excellent! The speaker sensitivity is key. For tube amplifiers a Sensitivity rating of 86 or higher is best.
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- JOHN T M on Oct 17, 2022
- Purchased on Aug 5, 2022
You need high efficiency speakers. The more efficient they are the higher your sound volume. It will not drive a large floorstanding speaker however. I built my own high-efficiency bookshelf speakers.
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- Charles F on Oct 18, 2022
- Purchased on Apr 14, 2022
Klipsch speakers are the best. But this amp is so good it can make mediocre ones sounds great. Just make sure the impedance is 8 ohm in order to get the most volume range.
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- Robert W on Oct 9, 2022
- Purchased on Feb 27, 2022
I am using two 8 ohm Klipsch Reference Series speakers. They are very efficient and sound great. I also use the preamp out to drive a powered subwoofer. Works fantastic.
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- Jaime W on Oct 9, 2022
- Purchased on Jan 3, 2022
Speaker selection is a personal matter but the amp has posts for 4 or 8 ohm speakers and will work fine with either.
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- Kelly C on Oct 9, 2022
- Purchased on Mar 11, 2022
4 to 8 ohm speakers is a good range for this amp
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- Robert Y on Oct 18, 2022
- Purchased on Apr 13, 2022
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No headphones jack. What is the best way to use headphones with this amp?
A shopper
on Aug 8, 2018
BEST ANSWER: RCA adaptor to headphone L & R channel or DVD player as music source using RCA connection with Bluetooth headphones. Amazing sound quality at low volume with headphones
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- ALLbBAK on Aug 8, 2018
- Purchased on Jan 31, 2018
BEST ANSWER: RCA adaptor to headphone L & R channel or DVD player as music source using RCA connection with Bluetooth headphones. Amazing sound quality at low volume with headphones
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- ALLbBAK on Aug 8, 2018
- Purchased on Jan 31, 2018
This amp has no headphone jack so the best way would be to connect a dedicated headphone amplifier to the pre-out connection on the back.
I have successfully connected headphone amps to the tape out on amplifiers but this one does not have this either.
According to the user manual on this amplifier the pre-out does not go over the volume control but I haven’t tested that, check it out
I have successfully connected headphone amps to the tape out on amplifiers but this one does not have this either.
According to the user manual on this amplifier the pre-out does not go over the volume control but I haven’t tested that, check it out
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- Joern S on Aug 8, 2018
- Purchased on Apr 4, 2018
There is a pre-amp out that could possibly feed a separate headphone amp.
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- Joseph A on Aug 8, 2018
- Purchased on Nov 24, 2017
It has a PreAmp output. You could run that to a headphone amp.
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- Matthew W on Aug 8, 2018
- Purchased on Apr 9, 2018
Bluetooth headphones or connect a tube headphone amp
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- freakydrew on Aug 8, 2018
- Purchased on Nov 27, 2017
I use Bluetooth headphones with this unit.
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- New User U on Aug 8, 2018
- Purchased on Mar 30, 2018
The switch on the front of the unit allows you to use Bluetooth wireless headphones/speakers.
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- New User U on Aug 19, 2019
There's no way this is true. The Bluetooth is input only. This does not output to BT
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- LAWRENCE D. on Dec 10, 2020
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I have a pair of Behringer 3030a powered monitors with quarter inch and xlr inputs can I use this amp to go from a turntable into the powered speakers and how would I do it?
A shopper
on Nov 14, 2018
BEST ANSWER: No, you couldn't use it in this fashion.
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- New User U Staff on Nov 19, 2018
BEST ANSWER: No, you couldn't use it in this fashion.
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- New User U Staff on Nov 19, 2018
Get yourself some 1/4" phono to rca adapters and plug the rca ends into the amplifiers outputs and then into your speakers powered 1/4" inputs. Should work fine. You could also get some balanced xlr to unbalanced rca adapters or cables and do the same thing. Only thing would be to check that the output of the amplifier is compatible with the Behringer monitors which they should be. I actually have biamped connections on my speakers and use the tube amp for the mid and high end and then use the output of the tube amp to feed a Carver amp to power the bottom end works great. Hope this helps.
Monoprice 6.35mm (1/4 Inch) Mono Plug to RCA Jack Adapter - Gold Plated
Stage Right by Monoprice On Tour Cables - XLR Female to RCA Male, 24AWG, Black, 1ft
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- Patrick M on May 8, 2019
- Purchased on May 9, 2018
You don't do it... You plug the turntable directly into the powered speakers if it produces a line-level signal... The tube amplifier has no purpose here as you described it. Otherwise, the signal would be amplified twice. Your plan is flawed.... You need a line-level signal to send to the powered speakers, not an amplified signal that would come from the Monoprice tube amplifier... What you really need is a good turntable amp that raises the turntable signal to line-level to run to your powered speakers. Hope this is helpful and clear enough to understand...
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- Larry A on May 8, 2019
- Purchased on Nov 29, 2018
I don’t have this speaker but I think you will need an RCA to AUX cable. The RCA end will be connected to the PreOut port of the tube amp and the AUX end of the cable to the input port of the speaker. MUST make sure that the AUX end cable size fit the input jack.
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- New User U on May 8, 2019
- Purchased on Apr 24, 2019
You wouldnt need this amp if you have powered monitors, they have their own amps. You need a phono preamp, or maybe a preamp with phono inputs so you can input other things
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- Josh S on May 8, 2019
- Purchased on Nov 5, 2018
Buy Banana to 1/4" Speaker Cable to connect
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- BRUCE Y on May 8, 2019
- Purchased on Jun 10, 2018
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Will this be enough power to drive my Klipsch Cornwall’s in an 18x25 room? I like it loud so I can feel the music.
Ray F
on Dec 30, 2018
BEST ANSWER: At 15W this amp may not be enough power if you like it loud. However your 102db sensitivity on the Klipsch may be enough to compensate.
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- Dave L Staff on Dec 31, 2018
BEST ANSWER: At 15W this amp may not be enough power if you like it loud. However your 102db sensitivity on the Klipsch may be enough to compensate.
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- Dave L Staff on Dec 31, 2018
From the Klipsch website, Cornwalls have a sensitivity rating of 102dB @ 2.83V / 1m. That means with one watt of power they will make 102 decibels of sound at 1 meter. Each additional doubling of wattage should raise the sound level by one DB. At least that's the theory. So the answer is probably yes.
Anecdotally I power Klipsch Heresy IIIs with this amp nd I can make it uncomfortably loud with no problem.
Anecdotally I power Klipsch Heresy IIIs with this amp nd I can make it uncomfortably loud with no problem.
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- Damon C on Dec 31, 2018
- Purchased on Oct 15, 2018
The sound is clean and pure. But not room shaking. I’m running MP 4” bookshelf speakers. I’ve recently added a MP 12” powered subwoofer, it shakes the room. But I don’t think the amp by itself will.
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- Justin B on Dec 31, 2018
- Purchased on Sep 18, 2018
I think you need a bigger amp. This is 10 watts, although this amp can easily power floor speakers. I think big floor speakers with 15 inch woofers is a reach. But I could be surprised, this is a great amp.
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- craig h on Dec 31, 2018
- Purchased on Feb 27, 2018
Even though the Cornwall’s are pretty efficient I don’t think this amp would suffice. I currently have it powering Klipsch R-15M’s for my office and it works well.
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- Kerrick H on Jan 1, 2019
- Purchased on Jul 9, 2018
Absolutely. Mine has no problem diving my Klipsch KSF 10.5's or my Heresy's.
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- Johnie K on Feb 6, 2019
- Purchased on Dec 11, 2017
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I had a pair of Spendor LS3/5a. Will this amplifier drive my speaker and give a warm sound?
New User U
on Apr 19, 2020
BEST ANSWER: Hi there, In looking at the LS3/5a specifications it seems the sensitivity is only 82.5db which will likely be a bit low for this particular amplifier. Tube amps recommend a db of 90 or better to be driven easily. This amp is rated at 10w to 4ohm speakers, that'd be 5w for 8ohm speakers, your speakers are rated at 15ohm which would likely thin the power of this amp too much. Those are fantastic speakers by the look and would likely benefit from a more powerful amp. If those were mine I'd probably spend a little (considerable) bit more and go with something like the Schiit Aegir which is "beyond class A" and which will give you comparable tube sound (if not better) and enough juice to run those fantastic speakers.
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- Donna B on Apr 20, 2020
- Purchased on Apr 8, 2020
BEST ANSWER: Hi there, In looking at the LS3/5a specifications it seems the sensitivity is only 82.5db which will likely be a bit low for this particular amplifier. Tube amps recommend a db of 90 or better to be driven easily. This amp is rated at 10w to 4ohm speakers, that'd be 5w for 8ohm speakers, your speakers are rated at 15ohm which would likely thin the power of this amp too much. Those are fantastic speakers by the look and would likely benefit from a more powerful amp. If those were mine I'd probably spend a little (considerable) bit more and go with something like the Schiit Aegir which is "beyond class A" and which will give you comparable tube sound (if not better) and enough juice to run those fantastic speakers.
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- Donna B on Apr 20, 2020
- Purchased on Apr 8, 2020
The Spendors have a low sensitivity rating and are high impedence. I wouldn’t think you’d get more than about 90 db at full volume. Enough for listening level, but not much more. I ried mine with Elac floor standers with 85 db efficiency and was underwhelmed. My Tektons are 95 db and can drive them to about 95 db. The amp does have a warm sound. Slight simbilance with female voices. Overall, a nice amp. Hope this helps.
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- George on Apr 20, 2020
- Purchased on Mar 4, 2020
Thanks George. Your comment is helpful. I just move to a new house and the listening area is 30' x 20'. Will 90db enough to this space?
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- New User U on Apr 20, 2020
As a point of comparison, the amp easily drives my Klipsch RP5000F tower speakers and produces a beautiful, warm, clear sound. It gets plenty loud too, if I want. I have never had to turn the volume knob higher than halfway up. I really love this amp, and all your guests will think it's cool.
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- Peter O on Apr 20, 2020
- Purchased on Dec 6, 2019
Yes, the amp will drive said speakers at an enjoyable sound level. The sound will be much warmer than that of a solid state amplifier costing up to 700 dollars. The tubes sound quite nice, and I have found no need to replace them with better non-Chinese tubes.
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- New User U on Apr 20, 2020
- Purchased on Apr 8, 2020
Yes, this amplifier will drive your speakers giving a warm sound. I am using this amplifier to drive Sonus Faber Venere 1.5 speakers yielding exceptional sound quality.
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- Brent A on Apr 20, 2020
- Purchased on Feb 22, 2020
It will likely drive them but I would think you’d want something more high end for those.
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- Sean W on Apr 20, 2020
- Purchased on Dec 11, 2019
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Where do you connect the phono ground?
A shopper
on Dec 4, 2020
BEST ANSWER: I got the best result connecting it to a rca plug ground. There are some screws on the chassis but in my case none of them appeared to actually connect to ground. I’ve read others have has success with them so it may depend on specific manufacturing conditions (I.e. mine probably has paint blocking the path to ground somewhere besides just the screw threads and themselves).
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- Scott B on Dec 4, 2020
- Purchased on Apr 28, 2020
BEST ANSWER: I got the best result connecting it to a rca plug ground. There are some screws on the chassis but in my case none of them appeared to actually connect to ground. I’ve read others have has success with them so it may depend on specific manufacturing conditions (I.e. mine probably has paint blocking the path to ground somewhere besides just the screw threads and themselves).
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- Scott B on Dec 4, 2020
- Purchased on Apr 28, 2020
My Amplifier doesn’t have a hum, so I assume the phono preamp itself is properly grounded. If you’re getting a hum, try plugging all of your stereo equipment into the same power strip and see if that helps. Otherwise your turntable may be grounded.
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- Barry A on Dec 4, 2020
- Purchased on Aug 15, 2020
There is a crew right next to the antenna. Looking from the rear of the unit, it will be just to the left of the antenna.
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- Matthew H on Dec 4, 2020
- Purchased on Jun 24, 2020
There’s a screw on the back between the phono inputs.
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- John B on Dec 5, 2020
- Purchased on Jul 31, 2020
Small Phillips head screw on the lower left corner.
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- Glenn W on Dec 4, 2020
- Purchased on Jul 30, 2020
You can connect it to the black speaker terminal.
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- John H on Dec 4, 2020
- Purchased on Jun 10, 2020
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Can the pre out be used for a powered subwoofer?
A shopper
on Apr 3, 2021
BEST ANSWER: I don't use this amp to power speakers, I use it to power a set of Stax electrostatic headphones. Which it does very well. The Monoprice site states that the pre-out is intended to be used with a subwoofer. Since it's a pre-out and the amp is only a 10 watt amp, it would have to be a powered subwoofer.
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- Paul M on Apr 3, 2021
- Purchased on Apr 12, 2020
BEST ANSWER: I don't use this amp to power speakers, I use it to power a set of Stax electrostatic headphones. Which it does very well. The Monoprice site states that the pre-out is intended to be used with a subwoofer. Since it's a pre-out and the amp is only a 10 watt amp, it would have to be a powered subwoofer.
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- Paul M on Apr 3, 2021
- Purchased on Apr 12, 2020
Yes that is exactly what I am using the pre-outs for. I do have a Y connector which can be used at either the amp pre-outs or the sub in as needed. My sub is the definitive 2000 which turns on when a signal is detected
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- Michael C on Apr 3, 2021
- Purchased on Apr 12, 2020
Yes. I currently use the pre-out with a subwoofer and it works well.
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- Noel F on Apr 3, 2021
- Purchased on Apr 7, 2020
O understand the answer is yes but no volume control for that out.
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- Jose G on Apr 3, 2021
- Purchased on Apr 4, 2020
Yes it is line level and controlled by the volume control.
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- Leslie C on Apr 3, 2021
- Purchased on Apr 15, 2020
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Does anyone have one without HUM? Mine has a lot. I like the warm and sweet sound. Should I try another one?
James C
on Dec 31, 2021
BEST ANSWER: This seems to be a common problem, but I've never experienced it myself. I did swap out all the tubes, bought a better AC cord, and have it plugged into an AC line conditioner.
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- New User U on Mar 13, 2022
- Purchased on Apr 23, 2020
BEST ANSWER: This seems to be a common problem, but I've never experienced it myself. I did swap out all the tubes, bought a better AC cord, and have it plugged into an AC line conditioner.
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- New User U on Mar 13, 2022
- Purchased on Apr 23, 2020
Don't live with the HUM! Replace the front 3 pre amp tubes with GE JAN (Joint Army Navy) 5670w tubes. They are smaller but, seem to be the go to tubes. Sounds great, no hum.
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- Sean O on Feb 19, 2023
- Purchased on Nov 12, 2022
Mine has a slight hum, not Really noticable when playing music. Make sure there are not alot a cables intermingled in back of unit.
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- scott j k on Dec 31, 2021
- Purchased on Dec 4, 2021
I bought this amp in Feb. 2021, had hum too. I replaced all 6N3 tubes with new ones, and hum was gone, no other changes were made.
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- Igor O on Mar 26, 2022
- Purchased on Feb 9, 2021
Mine has never had a hum. You could try different speaker cables of a larger gauge.
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- Roxannee B on Dec 31, 2021
- Purchased on Oct 12, 2021
Thanks Brad. Replaced the speaker cables with my 12 AWG cables which have been being used in my living room for years. The hum is lowered but still there. If I can further lower it, I will be happy.
I also tried to use a 3 to 2 prong adapter to remove the ground loop, but it doesn't help.
I also tried to use a 3 to 2 prong adapter to remove the ground loop, but it doesn't help.
As soon as I re-secured the turntable ground wire everything was good.
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- Richard P on Dec 31, 2021
- Purchased on Nov 26, 2021
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Can you ground an older turntable with a ground wire to this model? And if so, how?
A shopper
on Feb 1, 2022
BEST ANSWER: Yes, you can create a ground wire connection, should it be required.
Use a length of a wire, say 18- 20 ga with an eylet on one end and attach this under one of the chassis screws. The other end comes from the turn table.
Please note this is not always required and might introduce a ground loop an hum. You need to experiment with it.
Use a length of a wire, say 18- 20 ga with an eylet on one end and attach this under one of the chassis screws. The other end comes from the turn table.
Please note this is not always required and might introduce a ground loop an hum. You need to experiment with it.
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- Gail P on Feb 2, 2022
- Purchased on Dec 5, 2021
BEST ANSWER: Yes, you can create a ground wire connection, should it be required.
Use a length of a wire, say 18- 20 ga with an eylet on one end and attach this under one of the chassis screws. The other end comes from the turn table.
Please note this is not always required and might introduce a ground loop an hum. You need to experiment with it.
Use a length of a wire, say 18- 20 ga with an eylet on one end and attach this under one of the chassis screws. The other end comes from the turn table.
Please note this is not always required and might introduce a ground loop an hum. You need to experiment with it.
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- Gail P on Feb 2, 2022
- Purchased on Dec 5, 2021
Yes, I have done it. There is a Philips screw next to the Blue tooth antenna, I am using that screw and it seems to be fine.
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- Inaccurate
- Joe C on Feb 3, 2022
- Purchased on Dec 3, 2021
Try loosen one of the screws on the back of the case and connect the ground wire to that. That should eliminate the hum.
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- Stephen L on Feb 2, 2022
- Purchased on Dec 19, 2021
Yes! There is a Phillips screw on the case (next to the antenna on the rear) that works perfect as a grounding screw.
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- Mike on Feb 2, 2022
- Purchased on Dec 4, 2021
Yes, on the back left there should be a small black screw that you can attach the ground wire to.
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- Christopher L on Feb 3, 2022
- Purchased on Jan 20, 2022
We have a new turntable with a ground wire and there is a screw to connect. We love this unit!
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- Laurie & Mike M on Feb 2, 2022
- Purchased on Nov 22, 2021
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Probably complete overkill, but would I be able to drive KLH Model Three S lakers with this amp?
Ash H
on Nov 22, 2022
BEST ANSWER: Yes it can driver them, but a lot depends on what you expectations are for loudness
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- Inaccurate
- New User U Staff on Nov 22, 2022
BEST ANSWER: Yes it can driver them, but a lot depends on what you expectations are for loudness
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- New User U Staff on Nov 22, 2022
Could you drive KLH Model 3 with this? Yes. Sort of. Those are rather inefficient and would love more juice than what this thing can do. It would work but you wouldn't be able to get a lot of volume out of it. Prolly sound pretty great at lower volume levels though.
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- Daniel K on Nov 30, 2022
- Purchased on Nov 16, 2022
I don't see a problem driving those speakers on this amp.I have the Dayton Audio's MK-T442's and they are 4 ohm speakers
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- Brady H on Nov 30, 2022
- Purchased on Oct 16, 2022
I can't speak for that particular set of speakers, but it was able to drive a pair of Wharfedale Denton 80s no problem
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- Daniel D on Nov 30, 2022
- Purchased on Oct 11, 2022
You should be good too unless you like it super loud. I have pair of Klipsch KG2.2’s and this amp is more adequate.
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- James H on Nov 30, 2022
- Purchased on Oct 30, 2022
For sure. I'm running Pioneer CS-99's with mine and it's got plenty of headroom. I barely go above 20%.
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- Austin L on Dec 1, 2022
- Purchased on Sep 30, 2022
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does this have equal, less, or more power than the 25 and 50 watt versions? its rated at 10 watts but i read these are true watts? so does this make it perhaps a 75 to 100 watt amp compared to the other two?
luis c
on Aug 10, 2018
BEST ANSWER: There’s no such thing as true watts...nonsense. The amp goes on a benchmarking dyno. It makes the wattageg that it makes… In this case yes it is just 10 W. This is fairly typical for a real tube amp.
The real difference is this is 10 W of tube amplifier power. The more powerful amps that monoprice sells are only using tubes on the input stage. They use regular transistors like any other for output stage power. So this is the only amp they sell that is a pure tube amplifier. I can say that they sound quite nice and superior to most transistor based ones.
You just need to pair it with relatively Efficient speakers and then the wattage rating is not a problem.
The real difference is this is 10 W of tube amplifier power. The more powerful amps that monoprice sells are only using tubes on the input stage. They use regular transistors like any other for output stage power. So this is the only amp they sell that is a pure tube amplifier. I can say that they sound quite nice and superior to most transistor based ones.
You just need to pair it with relatively Efficient speakers and then the wattage rating is not a problem.
- Reply(1)
- Inaccurate
- Jeremy S on Aug 10, 2018
- Purchased on May 8, 2018
BEST ANSWER: There’s no such thing as true watts...nonsense. The amp goes on a benchmarking dyno. It makes the wattageg that it makes… In this case yes it is just 10 W. This is fairly typical for a real tube amp.
The real difference is this is 10 W of tube amplifier power. The more powerful amps that monoprice sells are only using tubes on the input stage. They use regular transistors like any other for output stage power. So this is the only amp they sell that is a pure tube amplifier. I can say that they sound quite nice and superior to most transistor based ones.
You just need to pair it with relatively Efficient speakers and then the wattage rating is not a problem.
The real difference is this is 10 W of tube amplifier power. The more powerful amps that monoprice sells are only using tubes on the input stage. They use regular transistors like any other for output stage power. So this is the only amp they sell that is a pure tube amplifier. I can say that they sound quite nice and superior to most transistor based ones.
You just need to pair it with relatively Efficient speakers and then the wattage rating is not a problem.
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- Inaccurate
- Jeremy S on Aug 10, 2018
- Purchased on May 8, 2018
I really can not say what the difference would be between a solid state amplifier and a tube amp. What I can tell you is that I have the tube amplifier hooked up to two very large speakers probably requiring a minimum of 50-100 watts each and this amplifier seems to do the job albeit not as loud but with the same punch and clarity of a much larger amp,
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- Patrick M on Aug 10, 2018
- Purchased on May 9, 2018
I don't think there is a way to convert class A watts to class AB wattage, suffice to say I use this with an inefficient speakers and makes enough sound to fill a large bedroom at 1 o clock volume knob.
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- Waleed S on Aug 10, 2018
- Purchased on Jun 8, 2018
It has every bit of volume as the 25 watt unit if not more. Just a lot cleaner sound. If you are using speakers that are very efficient that will sound even more loud
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- Marty on Aug 10, 2018
- Purchased on Jul 13, 2018
I can't say for sure, but, with the addition of my subwoofer ( a nice POLK 100 watt) it is quite loud. I had the smaller one, I like having phono inputs - enjoy!
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- Richard l on Aug 13, 2018
- Purchased on Jun 22, 2018
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Is this as loud as the 50W hybrid ? I see only the comparisons to the 25W one.
New User U
on Feb 3, 2019
BEST ANSWER: I have both the 50 wpc hybrid and the 10 wpc pure tube and I can tell you from ownership of both that the pure tube can get just as loud as the hybrid. The rule of thumb has always been that you need 4 to 5 times the power of a solid state system to equal the power of a tube system. So theoretically the pure tube output of 10 wpc is the equivalent of the 50 wpc hybrid. You must remember that the hybrid uses tubes for the preamp stage to give the music more warmth and depth but that the actual amplification comes from solid state components. The hybid sounds good escpecially with a tube upgrade. But the pure tube with a tube upgrade sounds absolutely amazing. You will be very happy with this amp especially if you have never heard a tube amp before. I am 68 and cut my teeth on tube amps. This one brings back memories of those days. Get it. You will live it.
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- Charlie D on Feb 24, 2019
- Purchased on Nov 2, 2018
BEST ANSWER: I have both the 50 wpc hybrid and the 10 wpc pure tube and I can tell you from ownership of both that the pure tube can get just as loud as the hybrid. The rule of thumb has always been that you need 4 to 5 times the power of a solid state system to equal the power of a tube system. So theoretically the pure tube output of 10 wpc is the equivalent of the 50 wpc hybrid. You must remember that the hybrid uses tubes for the preamp stage to give the music more warmth and depth but that the actual amplification comes from solid state components. The hybid sounds good escpecially with a tube upgrade. But the pure tube with a tube upgrade sounds absolutely amazing. You will be very happy with this amp especially if you have never heard a tube amp before. I am 68 and cut my teeth on tube amps. This one brings back memories of those days. Get it. You will live it.
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- Charlie D on Feb 24, 2019
- Purchased on Nov 2, 2018
The 10 watt pure tube amp is louder and more intense than the 25 or 50 watt hybrids. The tube amp does not distort the sound. It gets louder, but the sound quality does not change. Read through more customer reviews and questions and answers. Lots of more information there. For me the pure tube amp blows the 50 watt hybrid out of the water. I was hesitant. Best amp I have ever owned. I use it solely for my record player.
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- craig h on Feb 4, 2019
- Purchased on Feb 27, 2018
I am sorry but i have not heard the other amps. But what i can tell you its a very nice,good sounding amp .I use the phono sage, bluetooth and aux for cd player.I have it hooked up to tower speakers drives them with no problem. all work great. very happy with my purchase.
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- ralph l on Feb 4, 2019
- Purchased on May 13, 2018
Amazingly loud for the 10w rating.
You won’t be disappointed.
You won’t be disappointed.
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- Mark on Feb 4, 2019
- Purchased on Feb 15, 2018
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I only play music from my iPad to an amp. Stored music, and Amazon Music. Have Lore Reference speakers and a Martin Logan powered subwoofer.
Is this amp powerful enough for decent sound with these speakers?
Also, would I require a DAC?
Is this amp powerful enough for decent sound with these speakers?
Also, would I require a DAC?
A shopper
on Apr 15, 2019
BEST ANSWER: Yes, I think the MPT amp would work for you. I don’t think power would be an issue. Although I’m not familiar with your Lore Reference speakers, they are very efficient at 96db and should sound good. You should be able to drive your ML subwoofer from the amp’s preamp out RCA jacks although I’m not familiar with that speaker either. The amp has a built in Bluetooth receiver that will allow you to pair and play music from your iPad. Set your iPad volume to max and control listening volume from the amp. You won’t need a separate DAC. I’d have to opine that the sound out of the built in BT receiver is just OK. I must say that it’s a shame you don’t intend to use the aux or turntable jacks on this amp. CDs and vinyl records sound amazing on the MPT - to my ear, much better than the built in BT receiver. I have actually connected a relatively high end BT receiver (Audioengine B1) to the unit’s RCA aux jacks and the sound is way better - close to the level of CDs and vinyl. Good luck.
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- Karl S on Apr 15, 2019
- Purchased on Jan 31, 2019
BEST ANSWER: Yes, I think the MPT amp would work for you. I don’t think power would be an issue. Although I’m not familiar with your Lore Reference speakers, they are very efficient at 96db and should sound good. You should be able to drive your ML subwoofer from the amp’s preamp out RCA jacks although I’m not familiar with that speaker either. The amp has a built in Bluetooth receiver that will allow you to pair and play music from your iPad. Set your iPad volume to max and control listening volume from the amp. You won’t need a separate DAC. I’d have to opine that the sound out of the built in BT receiver is just OK. I must say that it’s a shame you don’t intend to use the aux or turntable jacks on this amp. CDs and vinyl records sound amazing on the MPT - to my ear, much better than the built in BT receiver. I have actually connected a relatively high end BT receiver (Audioengine B1) to the unit’s RCA aux jacks and the sound is way better - close to the level of CDs and vinyl. Good luck.
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- Karl S on Apr 15, 2019
- Purchased on Jan 31, 2019
I don’t know much about your speakers, but I have a similar setup with all MP stuff. (4” bookshelf speakers and a 12” powered sub) it works really well and can be heard throughout the house. The quality of the sound is top notch, a warm, rich sound. You can connect your iPad using Bluetooth. Just keep the iPad within 30’ or it will cut out. There is no digital input to the amp, but there is a line in. But if you’re only connecting your iPad via Bluetooth then you will not miss the digital input.
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- Justin B on Apr 15, 2019
- Purchased on Sep 18, 2018
I have 130 watt pioneer floor standing speakers with a 400 watt Polk audio subwoofer and the amp delivers plenty of power. And no DAC is not required for the aux input.
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- Marco P on Apr 15, 2019
- Purchased on Feb 2, 2019
I have a pair of KEF Q 150’s and they sound amazing with this amp. No sub. I only play music using the Bluetooth input from my I pad or I phone. I hope this helps.
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- New User U on Apr 15, 2019
- Purchased on Jan 24, 2019
Thats exactly what I use mine for and we love it
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- Lorenzo C on Apr 15, 2019
- Purchased on Jul 20, 2018
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Is this amp compatible with MM cartridges? Thank you.
A shopper
on Sep 4, 2019
Yes, it is. I have a Fluance RT81 turntable with an upgraded LP Gear CF95SE cartridge (incredible sound upgrade for only $60), which is a MM-based unit.
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- New User U on Sep 10, 2019
- Purchased on Feb 2, 2019
A moving magnet cartridge is actually a more common phono needle, so yes, I see no reason why it wouldn’t be compatible.
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- Justin B on Sep 4, 2019
- Purchased on Sep 18, 2018
yes, Moving Magnet phono cartridges work fine with this amplifier. Most Amps, preamps will entertain a MM cartridges.
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- Rex T on Sep 4, 2019
- Purchased on May 18, 2019
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Can this be used as a pure preamp without speakers attached to the output speaker terminals?
A shopper
on Jan 28, 2020
BEST ANSWER: There is a Pre Out port in the rear of this integrated amp, which normally means you can separate the Pre amp from the Power amp. Using the Pre amp section, connected in series with an outboard Power Amp. So yes it can be done. I have two of these Monoprice pure tube amps, though I do not use an outboard power amp, I strongly recommend changing the pre amp tubes, I own Audio Research and McIntosh tube amps, mono blocks, when I changed to much better tubes in the Monprice ( all 7 ) it was the Pre amp tubes that made a remarkable difference. Quality of the music became very life like, no fatigue, much deeper soundstage, The much more expensive amps are great, and are far superior, but with the change of tubes in this $350.00 integrated tube, music is real music, alive and lifelike
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- Emmanuel J on Jan 28, 2020
- Purchased on Aug 24, 2019
BEST ANSWER: There is a Pre Out port in the rear of this integrated amp, which normally means you can separate the Pre amp from the Power amp. Using the Pre amp section, connected in series with an outboard Power Amp. So yes it can be done. I have two of these Monoprice pure tube amps, though I do not use an outboard power amp, I strongly recommend changing the pre amp tubes, I own Audio Research and McIntosh tube amps, mono blocks, when I changed to much better tubes in the Monprice ( all 7 ) it was the Pre amp tubes that made a remarkable difference. Quality of the music became very life like, no fatigue, much deeper soundstage, The much more expensive amps are great, and are far superior, but with the change of tubes in this $350.00 integrated tube, music is real music, alive and lifelike
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- Emmanuel J on Jan 28, 2020
- Purchased on Aug 24, 2019
I had to get a replacement to the first received amp due to loud humming coming out of the speakers and when a music source was played it was screeching and fuzz. The second still had the hum but when music was played the music came through. Def not acceptable. I decided to give it a go as a preamp and in all honesty, I think it is pretty good in that role. I have purchased new tubes but only 2 of the 3 preamp tubes have arrived. I am planning on keeping it as a preamp and hope that the new tubes fix the hum for when i want to give it a go as an amp.
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- New User U on Feb 14, 2021
- Purchased on Jan 27, 2021
My speakers godirect to the amp.
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- New User U on Jan 28, 2020
- Purchased on Jul 17, 2019
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my turntable has a ground wire leading out of it. How would I ground the TT signal with this system to prevent hum?
A shopper
on Oct 16, 2017
BEST ANSWER: I grounded mine to that little screw next to the mount for the BT antenna. Worked fine for me.
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- Bryan L on Nov 18, 2017
- Purchased on Nov 5, 2017
BEST ANSWER: I grounded mine to that little screw next to the mount for the BT antenna. Worked fine for me.
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- Bryan L on Nov 18, 2017
- Purchased on Nov 5, 2017
If the amp doesn't provide a grounding lug, it is just effective to use another ground point such as the screw typically found between two AC outlets.
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- James R on Nov 5, 2017
Loosen one of the bottom rear screws that hold the cover in place and attach your TT grd. wire to it.
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- Jim W on Nov 2, 2017
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Why would you step back to 10w per channel when you last upgrade had 50w per channel and the iteration before had 25w/channel???
Bennett S
on Nov 5, 2017
BEST ANSWER: Full tube amps such as this one, rated at 10w, is still able to put out huge sound, unlike solid state or hybrid amps, and can easily drive floorstanding speakers for movies/music.
The 25w and 50w/channel models are hybrid, not full tube. And 10w full tube is actually very powerful compared to a 25w hybrid amp.
The 25w and 50w/channel models are hybrid, not full tube. And 10w full tube is actually very powerful compared to a 25w hybrid amp.
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- Son D on Jul 24, 2018
- Purchased on Jul 17, 2018
BEST ANSWER: Full tube amps such as this one, rated at 10w, is still able to put out huge sound, unlike solid state or hybrid amps, and can easily drive floorstanding speakers for movies/music.
The 25w and 50w/channel models are hybrid, not full tube. And 10w full tube is actually very powerful compared to a 25w hybrid amp.
The 25w and 50w/channel models are hybrid, not full tube. And 10w full tube is actually very powerful compared to a 25w hybrid amp.
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- Son D on Jul 24, 2018
- Purchased on Jul 17, 2018
This one uses tubes in the power output stage as well as the preamp stage. The other (hybrid) models uses tubes only in the preamp stage.
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- Christopher H on Dec 11, 2017
This a tube amp, not a hybrid
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- New User U on Nov 5, 2017
So what can this amp actually drive speaker wise, what would be its limits and what would be your recommendation?
I get that it is a pure Tube amp 10W output but my old Bozak Tempo II speakers have a power range of 15W min to 50W max. So if I run the pre-amp out to my older MP hybrid 25W tube amp to drive these will the double tubing be a problem?
And, I will add that, tube watts drive speakers in a different way that the same numerical value in solid state watts. I'm sure there is technical answers for this on the web. I have vacillated between buying the 50 watt hybrid and this new one. I'm now leaning toward the new 10 watt all tube model. If I made add, to establish credibility, I have owned too many to count stereo tube Hi-Fi amplifiers, as well as tube guitar amplifiers. I'll report back if I buy it. Chris
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- Christopher H on Dec 11, 2017
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What is the procedure for replacing tubes on this Unit.? It seems impossible without removing the cages which someone stated anchors the socket to the chassis at least on the hybrids. And its listed as the Best Answer. Staff response says that is incorrect. Anyone had any experience with rolling this amp and what tubes were used?
Murray F
on Sep 27, 2018
BEST ANSWER: The cages on our tube amps are only there to protect the tubes from getting knocked. They are not attached to the tube at all. You can remove the tubes by gently holding and rocking the tube as you pull it up. You can get grip in between the bars of the cage. You can also use a jewelers screwdriver to remove the cage for easier access to the tubes, might be a good idea if you are going to experiment with some different tubes to find the ones that sound best for your taste.
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- Dave L Staff on Oct 1, 2018
BEST ANSWER: The cages on our tube amps are only there to protect the tubes from getting knocked. They are not attached to the tube at all. You can remove the tubes by gently holding and rocking the tube as you pull it up. You can get grip in between the bars of the cage. You can also use a jewelers screwdriver to remove the cage for easier access to the tubes, might be a good idea if you are going to experiment with some different tubes to find the ones that sound best for your taste.
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- Dave L Staff on Oct 1, 2018
The tubes sit in their socket it does not need the cage protecters. Unscrew the cage nuts and slide them off. Replace the tubes carefully holding them in a cloth as not to get finger marks on them which will lessen the life of the tube, similar to halogen bulbs. Easy replacement and quick. Replace the cages if you wish. I run mine without
- Reply
- Inaccurate
- simon g on Oct 1, 2018
- Purchased on Nov 10, 2017
It looks very much possible to replace tubes WITHOUT removing protective cage. I've just checked my unit and cages are open on the top and there is enough clearance for replacement. Just need to be careful as you inserting new tube not to hit/press it against the cage.
- Reply
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- Yevgeniy G on Oct 1, 2018
- Purchased on Mar 5, 2018
Just keep rocking and pulling and they will eventually come out. Replaced the Chinese tubes with Russian Tung Sol EL84,s.
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- William L on Oct 1, 2018
- Purchased on Apr 8, 2018
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I just purchased the Monoprice pure tube amplifier. Will these 4" retro speakers work well with only 10WPC? They look great and the reviews are stellar. However, the 81db @ 1w/1m sensitivity tends to make me think otherwise.
New User U
on Nov 18, 2018
Monoprice Pure Tube Stereo Amplifier with Bluetooth, Line and Phono Inputs, and Qualcomm aptX Audio
Monoprice Retro Bookshelf Speakers 4-inch 2-way, Black (pair)
BEST ANSWER: Absolutely not an issue! These speakers sound fabulous with this amp. They will not fill a dance hall, but for a reasonable sized room these sound awesome together, especially after about 40 hours of break in.
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- Jeff M on Nov 26, 2018
- Purchased on Aug 10, 2018
BEST ANSWER: Absolutely not an issue! These speakers sound fabulous with this amp. They will not fill a dance hall, but for a reasonable sized room these sound awesome together, especially after about 40 hours of break in.
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- Jeff M on Nov 26, 2018
- Purchased on Aug 10, 2018
I would not know unless I tried it. I am running now a 4 ohm speaker I got used, it has weak base I would try it and return it if it is unsatisfactory
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- James D on Nov 18, 2018
Works very well. How long who knows but it is working once in a while and sound satisfied me.
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- R S on Nov 18, 2018
- Purchased on May 9, 2018
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Rated 5 out of 5
Absolutely love it
Absolutely love this amp for the price. Sounds incredible, looks incredible. Volume is more than sufficient for my small listening area. Running a Fluance turnable directly into the phono inputs and the sound is clean with no hum or distortion. A+.
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Rated 5 out of 5
WOW
I am very pleased with this amp. It sounds much better than I expected. I see no reason to spend thousands on another tube amp because this is so good. I am using LSA Signature 80 speakers that were $1,200 that is an incredible match.
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Rated 5 out of 5
Awesome little stereo!!
I love this stereo. I bought this one to replace my old MP tube stereo because the power supply failed after years of great tunes. This one has more watts and another input thank my old one. The sound is so warm even on Bluetooth but especially with a record player hooked up. It doesn't get super loud but it gets loud enough for what I need it to do. All in all a great buy and a great sounding and beautiful looking stereo.
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Rated 5 out of 5
Love it need some nice speakers to go with it...
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Rated 3 out of 5
Hmm
Baseline humming gets quieter over the first 30 min but never goes away and randomly gets louder. This is the second unit after I sent the first one back after overheating . Current unit works otherwise ok . 4 stars if there was no humming noise.
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Rated 3 out of 5
Cheap tubes give poor quality sound and are very noisy with load humryry
Cheap tubes. I replaced tubes with better quality tubes. Plays great now. Charge a little more to put a decent quality tube for better customer satisfaction.
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Rated 5 out of 5
I will buy again for two other systems!
It took a month to take pictures so I can finally submit this. I'm using this for the top end in a Triamp configuration.
Aux in from my preamp tape out. Speaker out for mid/ tweeter/ super-tweeter to the crossover on Dahlquist DQ-10 speakers. Pre-out to DBX PA2 crossover input; midwoofer and woofer out to individual drivers on DQ-10. It Works Fantastic & Sounds Wonderful!
I wanted the tube output for mids and highs for the warmth, and also wanted a tube preamp for turntable input.
As for buying it again, I probably will because I have two other systems that are biamped and triamped; this amp really brings out the top end of nicer speakers!
Aux in from my preamp tape out. Speaker out for mid/ tweeter/ super-tweeter to the crossover on Dahlquist DQ-10 speakers. Pre-out to DBX PA2 crossover input; midwoofer and woofer out to individual drivers on DQ-10. It Works Fantastic & Sounds Wonderful!
I wanted the tube output for mids and highs for the warmth, and also wanted a tube preamp for turntable input.
As for buying it again, I probably will because I have two other systems that are biamped and triamped; this amp really brings out the top end of nicer speakers!
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Response from Monoprice
Wow! Thank you for your positive words. We really appreciate the time you took to write such a detailed review. We hope it continues to meet your expectations. Thank you for shopping with us!
July 28, 2023
Eli S
Rated 5 out of 5
Great product!
Wonderful product! I hooked it up to my old pioneer speakers and turntable, and the sound is great! Highly recommended.
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Rated 5 out of 5
So far so good!
Had my eye on this for a while and picked it up on an amazing Black Friday sale.
While it?s still breaking in, I am impressed! Nice, warm tube sound and pinpoint imaging. Build quality seems very solid. No reason yet to roll the tubes, as the stock ones seem well-matched to each other and to the unit.
The Bluetooth adapter is surprisingly good, although it really shines with a HiRez signal source attached, and that will be my primary connection. Haven?t tried the phono input.
As long as you?ve got reasonably sensitive speakers (mine are 88dB), 10 watts per channel is more than enough.
There a couple small things that I wish were there: an additional line level input and a headphone jack.
But at sub-$300 all-in delivered price, this may the tube value steal of the year!
While it?s still breaking in, I am impressed! Nice, warm tube sound and pinpoint imaging. Build quality seems very solid. No reason yet to roll the tubes, as the stock ones seem well-matched to each other and to the unit.
The Bluetooth adapter is surprisingly good, although it really shines with a HiRez signal source attached, and that will be my primary connection. Haven?t tried the phono input.
As long as you?ve got reasonably sensitive speakers (mine are 88dB), 10 watts per channel is more than enough.
There a couple small things that I wish were there: an additional line level input and a headphone jack.
But at sub-$300 all-in delivered price, this may the tube value steal of the year!
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Rated 5 out of 5
Why isnt this thing more popular?
So this thing was $329 for ages, then it went 'on sale" when i bought one for $319....and now its on "sale sale' for $299, kinda bothers me, but not that much. The sound is super nice and tubealicious for this amp. I had been using a chifi douk audio $129 tube (preamp stage) amp with a solid state amp, but I wanted to try full tube amp. It has a very nice sweet sound. some people think highs and bass are rolled off with tube amps, and i guess its kinda true. There are tone knobs on the front if you wann change things around, but I have been satisfied with the sound for the most part.. I recently hooked up my sub to get the frequency response to 2022 bigger bass levels, and it was a nice combo...not sure why i didnt just try cranking the bass knob. This thing has no remote, so i set it on my desk to control volume, but those tubes get hot, so I had to move it away.If I was designing this thing, I would get rid of the bluetooth, and get rid of the silly VU meter on the front, and make it a few bucks cheaper., or maybe at least add a remote for volume. It feels well put together, although the rings around the tubes feel like they have edges that could potentiall cut your fingers if you try hard enough. Mine has a very low hum, only when no music is playing. It IS NOT a big deal, and doesnt affect the use of this thing in any way. For around $300, I dont think you could go wrong.
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