Monoprice 4-channel Headphone Amplifier
Product # 615220
UPC # 757901803406
$29.99
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I'm looking for an affordable way to use In Ear Monitors. Would this work as the only device between the mixer and the EIMs?
Davis F
on Mar 17, 2019
BEST ANSWER: Yes, input will accept headphone and line level signals.
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- Dave L Staff on Mar 18, 2019
BEST ANSWER: Yes, input will accept headphone and line level signals.
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- Dave L Staff on Mar 18, 2019
Yeah, I would think so. I have to play drums on a gig sometimes that requires IEM as it uses tracks and a click, so I just get an XLR cable running from an aux on the mixer from the engineer, and use an XLR to quarter inch converter cable (like in this link) to connect to this mini headphone amplifier and it works fine.
Monoprice 3ft Premier Series XLR Female to 1/4in TRS Male Cable, 16AWG (Gold Plated)
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- Travis H on Mar 18, 2019
- Purchased on Nov 24, 2018
It could but they need to be 1/4 inch comparable, and you would only be able to control volume, not individual levels of the mix. I use this for tracking with headphones all the time and it works fine even while recording live with other instruments.
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- Erik R on Mar 18, 2019
- Purchased on Nov 28, 2018
Don't see why not. You can connect up to 4 headphones and control the volume independently. I even use the Bluetooth transmitter also for Bluetooth headphones and works great.
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- Esteban R on Mar 18, 2019
- Purchased on Jun 22, 2018
Yes, I believe so. I use them between my mixer and down-stream power amplifiers, but they should work the way you are describing as well for line/low-level distribution.
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- Lance B on Mar 18, 2019
- Purchased on Apr 20, 2018
Yes you would just run one of the aux outputs on mixer (or main outputs) to the headphone Amp.
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- Robert S on Mar 18, 2019
- Purchased on Apr 12, 2018
yes, assuming the right adapters and matched impedance for your IEMs.
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- aSoundGuy on Mar 18, 2019
- Purchased on Sep 7, 2018
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Any ground lAny ground loop/hum issues?oop/hum issues?
A shopper
on Mar 9, 2020
BEST ANSWER: I had some issues, but they were unrelated to this box. I actually daisychained several (I bought three) and once I had worked out my own cabling issues, they were great.
Having said that, the nature of the design leaves it somewhat sensitive to interference. I used headphone outputs connected to the link input. If there is good level going to the input, and the cabling is reasonable, you shouldn't have any problems. They are definitely worth the extremely reasonable price.
Having said that, the nature of the design leaves it somewhat sensitive to interference. I used headphone outputs connected to the link input. If there is good level going to the input, and the cabling is reasonable, you shouldn't have any problems. They are definitely worth the extremely reasonable price.
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- Bob M on Mar 10, 2020
- Purchased on Apr 14, 2019
BEST ANSWER: I had some issues, but they were unrelated to this box. I actually daisychained several (I bought three) and once I had worked out my own cabling issues, they were great.
Having said that, the nature of the design leaves it somewhat sensitive to interference. I used headphone outputs connected to the link input. If there is good level going to the input, and the cabling is reasonable, you shouldn't have any problems. They are definitely worth the extremely reasonable price.
Having said that, the nature of the design leaves it somewhat sensitive to interference. I used headphone outputs connected to the link input. If there is good level going to the input, and the cabling is reasonable, you shouldn't have any problems. They are definitely worth the extremely reasonable price.
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- Bob M on Mar 10, 2020
- Purchased on Apr 14, 2019
I haven't had any issues with hum in the amplifier. It was easy to connect to my TV using basic RCA connector cable, allows for simple head set connections, and does a great job amplifying the output. It has a bit of power and thus, for my TV, the volume control is sensitive ( I generally have it set at about 4 out 10). I am extremely happy with this unit and very pleased with my purchase.
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- Nick J on Mar 10, 2020
- Purchased on Oct 6, 2019
I haven't had any, it seems to work pretty well but I've only used it a hand full of times so I couldn't tell you how it lasts over a longer period of time.
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- Teddy S on Mar 9, 2020
- Purchased on Apr 16, 2019
Totally silent, in terms of unwanted noise. The quality is high and the sound quality is great.
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- Wayne T. on Mar 9, 2020
- Purchased on Nov 5, 2019
None noted in my application. I use this product as an headphone amplifier for a computer.
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- Jack K on Mar 9, 2020
- Purchased on Mar 24, 2019
That's good to know because I haven't used mine yet
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- Property Doctor on Mar 10, 2020
- Purchased on Feb 16, 2020
No ground noises/issues with this amplifier.
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- Guest on Mar 10, 2020
- Purchased on Jun 23, 2019
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what is the LINK jack used for and is it a 2 conductor or 3 conductor (TRS) jack?
Daveworx
on Dec 31, 2017
BEST ANSWER: Link is a 1/4” TRS that can be used to link multiple headphone amps together using a single TRS cable, Or you can use it to connect from the source headphone TRS output instead of using the RCA jacks. It is wired in parallel with the RCA jacks.
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- Marcus d on Dec 31, 2017
- Purchased on Nov 17, 2017
BEST ANSWER: Link is a 1/4” TRS that can be used to link multiple headphone amps together using a single TRS cable, Or you can use it to connect from the source headphone TRS output instead of using the RCA jacks. It is wired in parallel with the RCA jacks.
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- Marcus d on Dec 31, 2017
- Purchased on Nov 17, 2017
LINK jack is for inputing your audio to the mixer. It's a stereo 1/4" jack like those used with stereo headphones on the front.
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- Loren N on Dec 31, 2017
- Purchased on Feb 28, 2017
The link is a TRS alternative (Stereo) for the RCA jacks. It will handle TS or TRS, but not TRRS.
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- Patrick on Dec 31, 2017
- Purchased on Jun 2, 2017
I would love to answer this question for you but I have yet to recivie this equipment
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- David k on Dec 31, 2017
- Purchased on Dec 19, 2017
It’s for linking one headphone amp to another
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- david p on Dec 31, 2017
- Purchased on Mar 4, 2017
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Is it possible to drive a small monitor speaker on one of the ports ?
Dann S
on May 1, 2019
BEST ANSWER: yes, be sure to adjust volume so you do not distort the front end of your speakers.
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- Dave L Staff on May 1, 2019
BEST ANSWER: yes, be sure to adjust volume so you do not distort the front end of your speakers.
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- Dave L Staff on May 1, 2019
May not be the best arrangement depending on the type speaker and volume level desired. As Dave L. (a staffer) already commented, if the input lever is too high, distortion will probably result. .I tried a little experiment to better provide an answer. Using the output from my iPad with some music, I connected the output to a Radio Shack Minimus-6 speaker. This speaker is 6 inches in diameter and rated at 8 ohms impedance. Sure enough if I raised the iPad volume too high bad distortion did result. When the input and output volume levels were adjusted to provide acceptable sound, the volume at the speaker was kind of a soft background level. This product is intended to drive headphones. I have one and it works fine in that application. Wayne H May 1, 2019
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- Wayne H on May 1, 2019
- Purchased on Mar 14, 2019
It would have to be a really small speaker or a powered/active speaker keeping in mind how small headphone drivers are. A better option would be to use a splitter at the amplifier input to send a signal to the speaker.
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- Jack K on May 1, 2019
- Purchased on Mar 24, 2019
Yes, that's not a problem. The volume might be low depending on your speaker, but it should work fine.
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- Larry B on May 2, 2019
- Purchased on Dec 27, 2018
Good thought. Not sure how many watts the output is but it wouldn't hurt to try a small speaker.
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- John B on May 2, 2019
- Purchased on Feb 26, 2019
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I just bought the Monoprice 'Pure tube stereo amp'. How well would this work on the 'pre-outs' on it?
A shopper
on Jun 6, 2019
BEST ANSWER: Beautifully, let all of your friends enjoy the tubey goodness.
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- Dave L Staff on Jun 6, 2019
BEST ANSWER: Beautifully, let all of your friends enjoy the tubey goodness.
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- Dave L Staff on Jun 6, 2019
I works well with any receiver pre-outs. Note though the receiver will not mute your speakers when you use your headphones thru this .
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- Jack K on Jun 6, 2019
- Purchased on Mar 24, 2019
Should work perfectly. I'm an audio engineer, so you can probably.believe me... :o)
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- Bob M on Jun 6, 2019
- Purchased on Apr 14, 2019
Yes, this will work with any line level signal.
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- Earl T on Jun 6, 2019
- Purchased on Jun 25, 2018
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How could is take car stereo speaker wires output and attach it to this? Do I simply put rca connect on a left and right stereo channel? Will this work?
A shopper
on May 6, 2020
BEST ANSWER: Two input sockets (female) on the back are RCA, labeled L and R. (There is also a 1/4" socket labeled LINK with a line going to the L RCA socket.) What you wrote will work. Your stereo output wires need RCA plugs (male) to plug into this amp. The outputs of this amp are the four 1/4" sockets you see in the picture.
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- Steven B on May 6, 2020
- Purchased on Jan 5, 2020
BEST ANSWER: Two input sockets (female) on the back are RCA, labeled L and R. (There is also a 1/4" socket labeled LINK with a line going to the L RCA socket.) What you wrote will work. Your stereo output wires need RCA plugs (male) to plug into this amp. The outputs of this amp are the four 1/4" sockets you see in the picture.
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- Steven B on May 6, 2020
- Purchased on Jan 5, 2020
Im not sure if I understand your application. The amplifier input is only RCA L & R, or 3.5mm plug input. This would not work in a vehicle application because the amp is powered, requiring a 110V, home type, 2 prong plug.
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- Jack K on May 6, 2020
- Purchased on Mar 24, 2019
Possibly.
Most car stereos have fader a control front to rear. You would need to adjust to the radio output accordingly. (front or rear). There may still be sound coming from the channel you are not using.
Most car stereos have fader a control front to rear. You would need to adjust to the radio output accordingly. (front or rear). There may still be sound coming from the channel you are not using.
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- Steve on May 6, 2020
- Purchased on Jun 11, 2019
This is for line level or pre-amp signals only.
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- Tyler B on May 6, 2020
- Purchased on May 20, 2019
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if you plug in inputs in both the RCA and the 1/4th inch, will it work as a mixer?
New User U
on Mar 7, 2021
BEST ANSWER: Good evening and Peace. I have not taken mine apart; however, the specifications indicate that the two inputs are wired "in parallel". That means it would be no better of a "mixer" than buying a plain "Y" cable.
So the issues: First you have no control over the two mixed inputs. Then the issue with "mixing" this way is that without some current limiting on the inputs (say 1K ohm resistors), you can get some distortion at best and at worse burn out the output stages of what you are sending to it or overdrive what you are sending out. That problem has nothing to do with this product specifically, but rather wiring it without understanding the ramifications.
My recommendation would be to get a cheap 2 to 4 line mixer somewhere for ~$30 and save yourself having to debug the problems later on. If you are handy and still want to mix this way, look for articles on making up a stereo to monaural cable (Google "stereo to mono summing" for articles) and double it for both inputs, summing both lefts and both rights separately.
Take care, God bless and best of luck with your mission.
So the issues: First you have no control over the two mixed inputs. Then the issue with "mixing" this way is that without some current limiting on the inputs (say 1K ohm resistors), you can get some distortion at best and at worse burn out the output stages of what you are sending to it or overdrive what you are sending out. That problem has nothing to do with this product specifically, but rather wiring it without understanding the ramifications.
My recommendation would be to get a cheap 2 to 4 line mixer somewhere for ~$30 and save yourself having to debug the problems later on. If you are handy and still want to mix this way, look for articles on making up a stereo to monaural cable (Google "stereo to mono summing" for articles) and double it for both inputs, summing both lefts and both rights separately.
Take care, God bless and best of luck with your mission.
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- Richard S on Mar 7, 2021
- Purchased on Apr 29, 2020
BEST ANSWER: Good evening and Peace. I have not taken mine apart; however, the specifications indicate that the two inputs are wired "in parallel". That means it would be no better of a "mixer" than buying a plain "Y" cable.
So the issues: First you have no control over the two mixed inputs. Then the issue with "mixing" this way is that without some current limiting on the inputs (say 1K ohm resistors), you can get some distortion at best and at worse burn out the output stages of what you are sending to it or overdrive what you are sending out. That problem has nothing to do with this product specifically, but rather wiring it without understanding the ramifications.
My recommendation would be to get a cheap 2 to 4 line mixer somewhere for ~$30 and save yourself having to debug the problems later on. If you are handy and still want to mix this way, look for articles on making up a stereo to monaural cable (Google "stereo to mono summing" for articles) and double it for both inputs, summing both lefts and both rights separately.
Take care, God bless and best of luck with your mission.
So the issues: First you have no control over the two mixed inputs. Then the issue with "mixing" this way is that without some current limiting on the inputs (say 1K ohm resistors), you can get some distortion at best and at worse burn out the output stages of what you are sending to it or overdrive what you are sending out. That problem has nothing to do with this product specifically, but rather wiring it without understanding the ramifications.
My recommendation would be to get a cheap 2 to 4 line mixer somewhere for ~$30 and save yourself having to debug the problems later on. If you are handy and still want to mix this way, look for articles on making up a stereo to monaural cable (Google "stereo to mono summing" for articles) and double it for both inputs, summing both lefts and both rights separately.
Take care, God bless and best of luck with your mission.
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- Richard S on Mar 7, 2021
- Purchased on Apr 29, 2020
Ive not had a reason to do that but you easily could by adding a splitter to either input
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- Christopher C on Mar 7, 2021
- Purchased on Jun 18, 2020
Nope. If a 1/4 inch cable is plugged in the RCA input doesn’t do anything.
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- Sean R on Mar 7, 2021
- Purchased on Apr 14, 2020
No, it's one or the other. The RCA input will override the 1/4 input.
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- Guy B on Mar 11, 2021
- Purchased on Feb 15, 2020
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Does the 1/4 input provide stereo as well, or only mono?
A shopper
on Apr 10, 2017
BEST ANSWER: I ran a stereo 1/4 cable into it for stereo and it worked great for me. I didn't try a mono cable so I have no idea how that works.
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- Loren N on Apr 22, 2017
- Purchased on Feb 28, 2017
BEST ANSWER: I ran a stereo 1/4 cable into it for stereo and it worked great for me. I didn't try a mono cable so I have no idea how that works.
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- Loren N on Apr 22, 2017
- Purchased on Feb 28, 2017
Its a headphone amp, its all stereo. Make sure you use stereo cables
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- james D on Apr 10, 2017
- Purchased on Jun 28, 2016
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Can this be used for recording on laptop by running Audacity? I will be recording some notes that I am plan to listen later. My setup will look like below.
HeadSet -----> Amp Device ----> Laptop(Audacity).
Thanks
HeadSet -----> Amp Device ----> Laptop(Audacity).
Thanks
RameshKumar N
on Apr 21, 2017
BEST ANSWER: The setup you show implies that you want to monitor (headphones) an audio source while recording it (Laptop-Audacity). If you add an input source of the audio that you wish to record to your setup (Input to the 4-channel headphone amp), then yes, this will do the job. But as originally described, you have no source for the audio (notes that I plan to listen to later).
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- JimJ on Nov 16, 2017
- Purchased on Nov 10, 2017
BEST ANSWER: The setup you show implies that you want to monitor (headphones) an audio source while recording it (Laptop-Audacity). If you add an input source of the audio that you wish to record to your setup (Input to the 4-channel headphone amp), then yes, this will do the job. But as originally described, you have no source for the audio (notes that I plan to listen to later).
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- JimJ on Nov 16, 2017
- Purchased on Nov 10, 2017
It's a headphone amp not an audio interface. You can not use it to record audio into your computer. It can take an audio feed from your computer and let up to four headphones be plugged into it so you can listen to audio.
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- Loren N on Apr 22, 2017
- Purchased on Feb 28, 2017
Are you wanting this to do the recording? It's just a headphone splitter, so sound won't go into your laptop from it. It's a great splitter, though. I use mine exclusively for my recording studio
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- Thomas G on Apr 22, 2017
- Purchased on Jun 3, 2016
Yes, I was planning to use this for recording. Good that I asked before ordering. Thanks for all the respondents.
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- RameshKumar N on Apr 23, 2017
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I am going to use the amplifier with a Yaesu FT-8800 that only has a mono output and a mono .25" mono plug is plugged into the input jack. If the switch is set to mono, will stereo headphones hear the output in both ears?
New User U
on Mar 13, 2019
BEST ANSWER: If this unit is set to mono it will combine L/R input channel and feed L/R outputs.
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- Dave L Staff on Mar 13, 2019
BEST ANSWER: If this unit is set to mono it will combine L/R input channel and feed L/R outputs.
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- Dave L Staff on Mar 13, 2019
NO. This is because the ring contact of the headphone amp's 1/4" input will be shorted to ground by the sleeve of the mono 1/4" plug on the end of your patchcord, thus disabling the right channel of the device. This is easily remedied - use a TRS (stereo) 1/4" plug on the end of the patchcord which plugs into the headphone amp, and wire the hot lead of the patchcord to BOTH the TIP and the RING contacts. Wire the end that plugs into the Yaesu normally: HOT to TIP, SHIELD to SLEEVE.
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- William W on Apr 9, 2019
You will need to get or make a special cable that converts the Mono out to a stereo input for the amplifier. otherwise you will only hear in one ear from your ham radio
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- Alan M on Mar 13, 2019
- Purchased on Dec 13, 2018
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Can I use this as a speaker selector to play music from my PC? Is there a suitable 1/4" to RCA cable that would work to send to separate speakers?
Brian C
on Jun 26, 2019
BEST ANSWER: This will work with powered speakers. We have 3.5mm stereo to dual RCA and a 3.5mm to 1/4" adapter
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- Dave L Staff on Jun 26, 2019
Monoprice 6ft Premium 3.5mm Stereo Male to 2RCA Male 22AWG Cable (Gold Plated) - Black
Monoprice 1/4in (6.35mm) TRS Stereo Plug to 3.5mm TRS Stereo Jack Adapter, Gold Plated
Thanks Dave! For a longer run (~25-35') does it matter which cable I use? For example, I could use the adapter you linked and a longer length of the cable you linked. Or should I use a long cable with 1/4" on both ends, then a short RCA cable closer to the speaker? Will one cable or another give better sound or less noise? Thanks!
Either way it is an unbalanced run. The longer length will make it very susceptible to noise and interference. Keep it down to only 1 adapter. It does not matter which side it is on. Stay away from power sources and power cables.
Thanks, Dave! Should I be using RCA coax cable instead for long runs? Sorry, don't really know the difference for all these cables.
I think my first reply might have not worked...
For a long run (any where from 25' to 50') should I use the RCA cable? Or should I use some kind of 1/4" or TRS cable then a short RCA cable by the speakers? Wasn't sure if one or the other would give better sound. Thanks!
For a long run (any where from 25' to 50') should I use the RCA cable? Or should I use some kind of 1/4" or TRS cable then a short RCA cable by the speakers? Wasn't sure if one or the other would give better sound. Thanks!
BEST ANSWER: This will work with powered speakers. We have 3.5mm stereo to dual RCA and a 3.5mm to 1/4" adapter
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- Dave L Staff on Jun 26, 2019
Monoprice 6ft Premium 3.5mm Stereo Male to 2RCA Male 22AWG Cable (Gold Plated) - Black
Monoprice 1/4in (6.35mm) TRS Stereo Plug to 3.5mm TRS Stereo Jack Adapter, Gold Plated
Thanks Dave! For a longer run (~25-35') does it matter which cable I use? For example, I could use the adapter you linked and a longer length of the cable you linked. Or should I use a long cable with 1/4" on both ends, then a short RCA cable closer to the speaker? Will one cable or another give better sound or less noise? Thanks!
Either way it is an unbalanced run. The longer length will make it very susceptible to noise and interference. Keep it down to only 1 adapter. It does not matter which side it is on. Stay away from power sources and power cables.
Thanks, Dave! Should I be using RCA coax cable instead for long runs? Sorry, don't really know the difference for all these cables.
I think my first reply might have not worked...
For a long run (any where from 25' to 50') should I use the RCA cable? Or should I use some kind of 1/4" or TRS cable then a short RCA cable by the speakers? Wasn't sure if one or the other would give better sound. Thanks!
For a long run (any where from 25' to 50') should I use the RCA cable? Or should I use some kind of 1/4" or TRS cable then a short RCA cable by the speakers? Wasn't sure if one or the other would give better sound. Thanks!
Yes, it could work that way. Use adapter part # 7193 (enter this into the search window) for the 1/4 to stereo RCA adapter.
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- Tyler B on Jun 26, 2019
- Purchased on May 20, 2019
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I am considering using it with a turntable with a built-in preamp. Would it suffice if I intend to use it with the Audio Technica ATH-M50X?
New User U
on Jan 26, 2018
BEST ANSWER: Yes this headphone amp will work with any line level devise.
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- Dave L Staff on Feb 20, 2018
BEST ANSWER: Yes this headphone amp will work with any line level devise.
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- Dave L Staff on Feb 20, 2018
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Will the mono switch help detect if one of the stereo channels is out of phase? In other words, if the left channel is 180 degrees out of phase from the right, this can be difficult to detect with headphones, but if the channels are summed to mono, the cancellation should be audible in each ear. Is this the case with this mono switch?
New User U
on Feb 11, 2018
BEST ANSWER: Yes, when switched to mono it will combine signals. If you are out of phase you will hear a significant drop in signal.
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- Dave L Staff on Feb 13, 2018
BEST ANSWER: Yes, when switched to mono it will combine signals. If you are out of phase you will hear a significant drop in signal.
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- Dave L Staff on Feb 13, 2018
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I would like to use to listen and to compare diferents headphones brands
So how does it work with some headphones that are hard to drive like Sennheiser 650?
V Vidot
So how does it work with some headphones that are hard to drive like Sennheiser 650?
V Vidot
A shopper
on Feb 12, 2019
BEST ANSWER: This amp does have a ton of output to drive just about any headphone loud & clear.
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- Dave L Staff on Feb 13, 2019
BEST ANSWER: This amp does have a ton of output to drive just about any headphone loud & clear.
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- Dave L Staff on Feb 13, 2019
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I’d like to use this to “combine” or “mix” the audio from two different devices (a PC and an iPhone) while returning audio from my headset microphone to a call on my iPhone. Will this device accomplish my goal? I’m sorry for my inexperience.
New User U
on Jun 11, 2020
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What is the frequency response range? Is it above 20,000 hz? Thanks
A shopper
on Apr 1, 2023
BEST ANSWER: The frequency range of an 88-key piano is from 27.5 Hz @ A-zero, to 4,186 Hz @ C-8. The theoretical, hearing perception range of a young, healthy human (not Beethoven) is from 20 Hz to 20,000 Hz.
A full-size (88-key) piano would have to be extended higher, an additional 24 keys, to incorporate two additional, higher octaves. Were this to be fabricated, then the highest key on the modified instrument would sound at 16,744 cycles per second (Hz). Even then, we would still be falling short of your desired, "above 20k cycles/ sec."
As the piano is presently designed and accepted, apparently, western music does not find it necessary to reach so high. So then, why bother about it?
Can the headphone amp transmit above 20,000 Hz, you ask? Only your dog will know!
Or, measure its range in the electronics lab, with meter and scope, if that's still an issue for you.
My experience with the Monoprice product is that it faithfully transmits what my laptop computer can only feebly emit, via the p.c.'s original, tiny, built-in speakers. The expected, and in fact, fulfilled pay-out, is that sounds rendered are completely accurate; the amp having transmitted all wavelengths which sound source outputs, and in the same proportions.
Only now they're sufficiently and adequately, satisfactorily amplified, with no added noise nor coloring. So that all one desires to hear, becomes completely, audibly attainable. A home run!
This headphone amp serves excellently. Try it. You'll like it. Mark Drobnick
A full-size (88-key) piano would have to be extended higher, an additional 24 keys, to incorporate two additional, higher octaves. Were this to be fabricated, then the highest key on the modified instrument would sound at 16,744 cycles per second (Hz). Even then, we would still be falling short of your desired, "above 20k cycles/ sec."
As the piano is presently designed and accepted, apparently, western music does not find it necessary to reach so high. So then, why bother about it?
Can the headphone amp transmit above 20,000 Hz, you ask? Only your dog will know!
Or, measure its range in the electronics lab, with meter and scope, if that's still an issue for you.
My experience with the Monoprice product is that it faithfully transmits what my laptop computer can only feebly emit, via the p.c.'s original, tiny, built-in speakers. The expected, and in fact, fulfilled pay-out, is that sounds rendered are completely accurate; the amp having transmitted all wavelengths which sound source outputs, and in the same proportions.
Only now they're sufficiently and adequately, satisfactorily amplified, with no added noise nor coloring. So that all one desires to hear, becomes completely, audibly attainable. A home run!
This headphone amp serves excellently. Try it. You'll like it. Mark Drobnick
- Reply
- Inaccurate
- Mark D on Apr 6, 2023
- Purchased on Sep 30, 2022
BEST ANSWER: The frequency range of an 88-key piano is from 27.5 Hz @ A-zero, to 4,186 Hz @ C-8. The theoretical, hearing perception range of a young, healthy human (not Beethoven) is from 20 Hz to 20,000 Hz.
A full-size (88-key) piano would have to be extended higher, an additional 24 keys, to incorporate two additional, higher octaves. Were this to be fabricated, then the highest key on the modified instrument would sound at 16,744 cycles per second (Hz). Even then, we would still be falling short of your desired, "above 20k cycles/ sec."
As the piano is presently designed and accepted, apparently, western music does not find it necessary to reach so high. So then, why bother about it?
Can the headphone amp transmit above 20,000 Hz, you ask? Only your dog will know!
Or, measure its range in the electronics lab, with meter and scope, if that's still an issue for you.
My experience with the Monoprice product is that it faithfully transmits what my laptop computer can only feebly emit, via the p.c.'s original, tiny, built-in speakers. The expected, and in fact, fulfilled pay-out, is that sounds rendered are completely accurate; the amp having transmitted all wavelengths which sound source outputs, and in the same proportions.
Only now they're sufficiently and adequately, satisfactorily amplified, with no added noise nor coloring. So that all one desires to hear, becomes completely, audibly attainable. A home run!
This headphone amp serves excellently. Try it. You'll like it. Mark Drobnick
A full-size (88-key) piano would have to be extended higher, an additional 24 keys, to incorporate two additional, higher octaves. Were this to be fabricated, then the highest key on the modified instrument would sound at 16,744 cycles per second (Hz). Even then, we would still be falling short of your desired, "above 20k cycles/ sec."
As the piano is presently designed and accepted, apparently, western music does not find it necessary to reach so high. So then, why bother about it?
Can the headphone amp transmit above 20,000 Hz, you ask? Only your dog will know!
Or, measure its range in the electronics lab, with meter and scope, if that's still an issue for you.
My experience with the Monoprice product is that it faithfully transmits what my laptop computer can only feebly emit, via the p.c.'s original, tiny, built-in speakers. The expected, and in fact, fulfilled pay-out, is that sounds rendered are completely accurate; the amp having transmitted all wavelengths which sound source outputs, and in the same proportions.
Only now they're sufficiently and adequately, satisfactorily amplified, with no added noise nor coloring. So that all one desires to hear, becomes completely, audibly attainable. A home run!
This headphone amp serves excellently. Try it. You'll like it. Mark Drobnick
- Reply
- Inaccurate
- Mark D on Apr 6, 2023
- Purchased on Sep 30, 2022
Vote for the best answer above!
I would like to take a Mon Out feed into this headphone amp (to have control of aux mix from the board as well as volume for each headset). Is that possible, and what is the appropriate cable to use?
Kevin H
on Oct 14, 2021
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Rated 5 out of 5
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Rated 5 out of 5
Exceeded my expectations
I could not find my primary headphone amplifier, I use it so my guests on the podcast can hear how we all sound during the conversation. I was completely impressed with the quality of the audio. I have used other, multiport headphone amps, and this one from MonoPrice was significantly better in audio quality and in the gain control. Excellent quality.
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Rated 5 out of 5
Useful for Youtubers
I can now turn the headphones down externally and the stream doesn't know the difference.
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Rated 3 out of 5
Nope
scratchy. distorts easily. to be fair i do use it at times, but it?s not great
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Rated 5 out of 5
Great addition to your recording rig!
This works perfect. Did a pod cast without it and quickly realized how important headphones are this makes it a breeze to have more people in a room. Also this product is built well and sounds fantastic. I checked the sound coming out of my interface and plugged the amp in and tested and there is no sound loss whatsoever. Great Job Monoprice!!
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Rated 1 out of 5
Quality control is an issue on this.
It's good enough when it works. This is the first piece of bad gear I've received from Monoprice and I can get it to work fine with enough patience. This unit produces a loud hum from all outlets and I'm convinced that the problem is internal as I've switched cables on all ports but the hum only goes away with enough tinkering and wiggling until things are just right.
This basic box would be a solid four star if it weren't for this issue.
This basic box would be a solid four star if it weren't for this issue.
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Rated 5 out of 5
Great buy.
Looks and works as described. Sounds good. Strong construction
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Rated 5 out of 5
worked perfect
using it to setup a headphone system for my TV - worked as stated and has a nice solid feel to it - the volume knobs have click stops.
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Rated 5 out of 5
Does the Job!
A very simple, but clean and powerful headphone amp. It does exactly what I needed. Can't beat the price.
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Rated 5 out of 5
Great little box
Powers my Beyerdynamic DT770 250 Ohms headphones.
I also use it to control the Subpac, as it should have a dedicated level control.
I also use it to control the Subpac, as it should have a dedicated level control.
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