Volume Pricing (Log In to see Member Pricing)
50 Watt Stereo Hybrid Tube Amplifier with Bluetooth & Line Output
Enjoy the sound, style, and convenience of a hybrid tube amp with Bluetooth®. This hybrid tube amp combines the warm, soothing sound of a tube preamp with the efficiency, power, and clarity of a 50 watts per channel solid state power amplifier. Stream your digital music to the amp using the built-in Bluetooth 4.0 radio with the superior sound of the Qualcomm® aptX™ audio codec. Enhance your sound by connecting a subwoofer to the RCA preamp outputs. Not only does this amp sound great, it looks great, too! The black panels, lighted VU meter, chrome accents, and the warm glow of the exposed tubes present a minimalist retro look, which will enhance any home or office environment with a hint of old school styling.
Warm & Rich Sound | Simply Attractive | Bluetooth Convenience
50-Watt Stereo Hybrid Tube Amp
Sound Quality: Life is too short for audio products that don't sound great! We believe that the whole point of listening to music is to hear it as the artist intended. Our engineers and audio experts have spent countless hours listening to and comparing various amplifiers until we were satisfied we had found models that fit our demanding standards.
Style: The polished piano black case, brushed aluminum face, lighted VU meter, and the warm glow of the exposed tubes combine to give this amp a sexy appearance that is at once both classic and futuristic.
Versatile: Enjoy your music the way you want! Use the stereo RCA jacks to connect directly to a CD player or use the Bluetooth® v4.0 radio to connect wirelessly with your phone. Add a subwoofer by connecting to the RCA preamp outputs for even more room shaking sound. The Qualcomm® aptX™ audio codec ensures that your wireless streaming sounds as clean and clear as your wired connections.
Bluetooth audio for grownups. Listen to music like you care about it.
Because of its lossy nature, digital music can often lose some of the depth and warmth that gives it life. Wireless streaming adds an additional layer of digital compression, which can further degrade the audio quality. The addition of the tube preamplifier stage adds back some of the warmth and richness, breathing new life into your digital music, while the Qualcomm® aptX™ audio codec ensures clean and clear Bluetooth® streaming.
- 50 watts/channel class AB power amplifier
- Less than 0.1% total harmonic distortion
- Qualcomm® aptX™ audio codec for clean and clear wireless streaming
- 20Hz ~ 20kHz frequency response
- Tube preamplifier stage with solid state power amplifier
- Bluetooth® v4.0 wireless streaming
- One stereo analog RCA input
- One stereo analog RCA output
- 5-way binding post speaker connections
Monoprice not only stands behind every product we sell with a 1 year replacement warranty, we offer a 30-day money back guarantee as well! If the product you purchase does not satisfy your needs, send it back for a full refund.
Quality at a Fair Price
Monoprice's rugged design and rigid quality control standards deliver high quality products at fair prices.
Hassle Free Packaging
Monoprice exists to bring simplicity, fairness, and confidence to technology choices. This product features recyclable packaging that is simple to open, cost effective, with minimal waste, and fully protective as it travels to you.
Service & Support
You're never on your own with Monoprice products! We have a full team of friendly and knowledgeable technicians available to answer your questions, both before and after the sale. Contact our technical support team for questions about our products, troubleshooting, or even suggestions for products to fit your particular needs. Not to be outdone, our friendly and helpful customer service team is here to make your ordering, delivery, and any possible returns a quick and painless operation, from start to finish!
|Frequency Response||20Hz ~ 20kHz ±2dB|
|Total Harmonic Distortion||≤ 0.1%|
|RMS Power Output (4-ohm load @1kHz)||53 watts/channel|
|Peak Power Output (4-ohm load @1kHz)||75 watts/channel|
|Output Impedance Range||4 ~ 16 ohms|
|Input Impedance||47 kilohms|
|Signal-to-Noise Ratio||≤ 88dB|
|Treble Adjustment Range||-10dB ~ +10dB|
|Bass Adjustment Range||-10dB ~ +10dB|
|Input Voltage||100 ~ 120 VAC, 60 Hz|
|Fuse Ratings||F2AL / 125V|
|Tube Types||2x 6N1 and 2x 6P1|
|Bluetooth® Version||4.0 w/ Qualcomm® aptX™ audio codec|
|Bluetooth Range||Up to 32 feet (10 meters)|
|Dimensions||11.3" x 12.0" x 5.9" (286 x 305 x 150 mm)|
|Weight||11.2 lbs (5.1 kg)|
- User's Manual (Aug 16, 2016)
The Bluetooth® word mark and logos are registered trademarks of Bluetooth SIG, Inc.
Qualcomm® is a trademark of Qualcomm Incorporated, registered in the United States and other countries. aptX™ is a trademark of Qualcomm Technologies International, Ltd., registered in the United States and other countries. Qualcomm® aptX™ is a product of Qualcomm Technologies International, Ltd.
Questions and Answers
great lil' amp as is but even better as a warm tube re-amp.
I have the 50 watt model hooked up to a pair of Paradigm monitor 3's and although they are a little bit undersized, they really fill up my mid-size bedroom with barely close to 1/4 on the volume control knob setting.
If you are going to be using the amp in a living room or a wider area, then i would definitely suggest to get the 50 watt Monoprice. if a more bigger and robust sound is what you are trying to achieve..
ie: In the 1950s, the Recording Industry Association of America (RIAA) introduced an equalization standard that could be applied to the original audio as it was pressed into a record. This equalization, which continues to be used to this day, reduces low frequencies and boosts high frequencies, thereby compressing the audio so that more of it can fit on a record. During playback, the exact opposite function is performed through an RIAA preamp, resulting in the reproduction of the original audio.
Hope that helped.
Mono should have the manual available for download or viewing and it should tell you in there I would think ?
PROS: Great sounding hybrid tube amp at this price point. Simple design and looks very cool. Bluetooth works well. Sturdy construction with a quality feel.
CONS: There is no mention of brand/country of origin for the tubes. My guess is China, but I could be wrong. For a hybrid unit like this, the tubes are absolutely essential. It would be helpful if Monoprice indicated the brand of tubes and sufficient information for tube replacement. Eventually the tubes will burn out and this may leave some some customer asking what to do next....
11 months ago
I also hooked them to a pair of floor standing Klipsch Reference Premiere RP-260F speakers and the amp powered them to impressive levels will a great degree of detail and bass and smooth mids and highs... This also has a line output to hook up a sub, which I'll probably do in the future..I'll admit, I am a bit of a "tube-o-phile". I own an Audio Research Ref5SE and GS150 amp in my big system. Yes, this little guy does not come close to 30+K of gear, but it makes a fantastic small room or office system. And the look with the tubes is an attention getter. I love the black faceplate.......Highly recommended.
10 months ago
11 months ago
First sound stage in this combination is very nice.
The 50 watts is way more than enough for even party level listening
The sub out and Bluetooth connectivity is a real convenience benefit.
Be aware that once Bluetooth is connected, every time you walk in the room the system will announce that you are connected.
I use these Klipsch speakers as my rear speakers in a 5.1 home system. With this amp I can take these speakers anywhere and I have stereo music ready to go.
I have also driven my 20 year old Mission Argonauts 4 ohm tower speakers with this amp and was amazed, once again great soundstage and clarity.
Bottom line it just works
11 months ago
First of all, the item arrived three days earlier than expected. Unboxing was typical - the unit did not come double boxed but had the foam bumpers on each side to protect it while in transit. Everything was wrapped and there was that nice plastic film to rip off the shiny bits. I had it up and running in less than five minutes and that included the time it took to pair it to my phone.
Let's also explain that this is not a full tube amp. Only the pre-amp input section is tube based (ie; any sound coming in gets tube treatment before being amplified). The actual amp section is class AB according to the manual. They work very well together so do not be fooled. You are getting a really nice setup for very little coin in the audio world
Out of the box impressions are simply amazing. The sound is smooth as butter with slightly muted but, present highs. Rich and warm mids with good extension on the bottom. Right now, I just have it paired to my phone and I'm very impressed with it. I'll be adding a Yamaha WCX-50 pre-amp that will plug into the cd input which will allow for more flexibility as the pre-amp supports LAN streaming from a NAS or any of the internet radio services.
Currently, I have a Martin Logan Dynamo subwoofer connected to it but, it's really not needed if you have a nice pair of speakers (keeping in mind "nice" is subjective). I'm running Dynaudio X-14 bookshelf speakers and they sound really good with this amp. A subwoofer will fill out the lower frequencies for sure but, it's not absolutely needed. If you are on a budget, check out the Elac Debut B6. For someone on a tight budget, they would be a great speaker that would not require a subwoofer. Of course having a sub is going "complete" the sound stage.
I've listened to a few rocks songs (Nickelback, Puddle of Mudd, Rolling Stones) and some standards from Renee Olstead and Sara Gazarek. I was quite impressed with The Rolling Stones' "Can You Hear Me Knocking" and "Dead Flowers". The sound stage was broad and had plenty of depth. It handles all genres very well. What really blew me away was listening to Morgan James tribute to Nina Simone. This is a live recording with little bits of ambience and which are faithfully reproduced by this little amp. I was easily transported to Dizzy's where it was recorded. In between songs, I could hear the tinkling of wine glasses and silverware. The sound was precise, openly free and airy. The placement of each performer was well defined to the point I could picture where the drummer was, where the bass player was, where Morgan was standing when singing. It all pulled together to make a very enjoyable listening session.
So, where does the amp fall short? It's definitely lacking punch. It's rated at 53 watts/channel per manual specs but, it probably falls closer to 30 - 35 watts at 8 ohms. This is not a bad a thing because you get to hear music at nearly full volume without distorting. I can't really ding the amp too hard for lacking the punch because it does not really need it. Just know you are not going to supply music to the whole complex or next house party. For the money, you are getting high fidelity refinement on a beer budget.
Lastly, I was not provided any compensation for this review. It's is my honest opinion and I paid for this unit with my own money
PROS: Great price, good power, powers my Superzeros without any problem, sounds good with Bluetooth too.
CONS: No headphone jack
Before sent it back I plugged the amp into the same 120 VAC plug that my Bose unit was plugged into and the noise totally went away. Must have had some type of ground loop.
Playing Pandora via bluetooth from the phone works great.
Over all I'm very happy with the purchase.
1 year ago
11 months ago
1 year ago