5.0 out of 5 stars Nice….

2026-01-08    -Brian Bookmiller

Works great so far

4.0 out of 5 stars Attractive desktop amp

2026-02-15    -Nick

This unit has a clean look combined with some RGB around the volume control that may it feel very game-centric. It would look great on a desk with a gaming PC. Otherwise, it has a pretty decent build quality. As for sounds, it is everything I would expect from a class D amplifier. That is, pretty dang good for the price. It also happily drove all my test speakers (Fisher XP-75A three-way floor speakers, Cambridge Soundworks model 6 bookshelf speakers). I had no need to max the volume. The treble and bass controls work well. I did give it 4 starts since the treble and bass have no center detent for a "neutral" position. Otherwise, very good. No issues with bluetooth connection or range either.

5.0 out of 5 stars Oh yeah

2026-01-05    -Bruno

Oh yeah. Just got mine. Incredible sound. I’ve been listening to music for 60 years. Electronics has advanced dramatically in that time. This is virtually audiophile quality sound. Signal to noise ratio is rated equal to or greater than 98 dB. That’s excellent. And now that I’m listening to it, it’s real.

1.0 out of 5 stars Optical does not work

2026-01-15    -S. Ng

Bluetooth works fine, but just get static when connecting to optical (I verified that my optical signal is good against a Yamaha receiver).

5.0 out of 5 stars Great little amp/receiver

2026-02-09    -Cheesehead

Excellent! Had to move the 'big TV' upstairs due to water damage. This little guy is pushing big JBL studio mains in the living room now. And quite well- via the optical output of the TV. I even joined my phone to it via Bluetooth. Colored lights on the volume knob is rather annoying, but with the remote, I was able to hide it and just expose the remote sensor.

4.0 out of 5 stars Attractive desktop amp

2026-02-13    -Nick

This unit has a clean look combined with some RGB around the volume control that may it feel very game-centric. It would look great on a desk with a gaming PC. Otherwise, it has a pretty decent build quality. As for sounds, it is everything I would expect from a class D amplifier. That is, pretty dang good for the price. It also happily drove all my test speakers (Fisher XP-75A three-way floor speakers, Cambridge Soundworks model 6 bookshelf speakers). I had no need to max the volume. The treble and bass controls work well. I did give it 4 starts since the treble and bass have no center detent for a "neutral" position. Otherwise, very good. No issues with bluetooth connection or range either.

5.0 out of 5 stars You will not be disappointed

2026-02-16    -Dale

Exceed my expectations!

5.0 out of 5 stars Works perfect

2026-02-01    -Nekimmi

Works awesome. I set it up to to run the sound from my TV on my deck to the outdoor speakers (Wired).

5.0 out of 5 stars Nice….

2026-01-25    -Brian Bookmiller

Works great so far

5.0 out of 5 stars Feature-rich TPA3116 Stereo Amplifier with four inputs: Analog, SPDIF, TOSLink, Bluetooth and more

2026-02-04    -WhatsTheHurry?

I picked up this Amplifier in part because I am already a fan of the TPA3116 digital amplifier for its clear and low-fatigue sound quality. This little "M19 BT" model combines two high-quality amplifier chips with digital Volume Control, Bass and Treble control, the latest Bluetooth 5.3 SBC AAC, and even a 1/4-inch microphone input with echo/reverb effect, plus a remote control. One photo shows how small the amplifier is on top of a 6.5-inch woofer two-way speaker. Other photos show the remote features as well as the controls and inputs available.This amplifier arrives nicely package and well-documented with a good quality printed user manual in English that explains how to use each of the features, but in general, it's as simple as turning it on via the volume control's integrated power switch, after which it audibly announces the currently-selected input. The remote control of course also allows you to make the same adjustments, from across the room. Cables for RCA->3.5mm stereo, and 3.5mm -> 3.5mm stereo are included, as well as an appropriate antenna for Bluetooth.To be clear about the power capability of this device or any based on the TPA3116 family, a 24V 5A DC power supply can only deliver 120 W total continuously (<60 W/ch due to <100% efficiency). It may be possible get a higher instantaneous peak power level into low-impedance speakers, but that's one limit to how much power you can expect to get out of this amplifier. It's actually plenty of power for most situations where an amplifier this small is desirable.If your speakers are 8 ohms, the 24V DC power supply limits you to 30-35 watts per channel because even with a bridged configuration, the output voltage cannot swing more than from +24V to -24V so the maximum RMS voltage of a sine wave signal output is going to be limited to 17VAC RMS or less. Into 4 ohms, the voltage limit remain the same, but the current is doubled so peak output is about 60 watts/channel max, perhaps a little more on peaks.At 2 ohms, maybe you can momentarily extract a bit more power, but the heat produced by the amplifier will increase at lower speaker impedances when driven hard as well, so it may be advantageous to run the amplifier at a lower supply voltage, since the range is specified as 12-24V. There is no possibility of running the TPA3116 at a higher voltage because the voltage limit is enforced by the amplifier chip itself and it will cut off to protect itself.With either 8 ohm or 4 ohm speakers, the output is more than enough to drive desktop speakers for example, and it's sufficient for moderate volume in good-sized living room as long as the amount of bass power demanded by the music is reasonable.The sound of the TPA3116 is better than the the TDA7498 in my opinion; a bit smoother and less harsh in the higher frequency range. The TDA7498 can be driven by a higher voltage by design, often 36V or slightly more so it can, in theory provide about twice as much maximum power, but I find the TPA3116's sound more pleasant for day-to-day listening at moderate volume levels!The bass and treble controls on the amplifier and the EQ sound effects button on the remote are a little ambiguous since they are both working on your sound at the same time and highly variable.This little amplifier is completely noiseless. It drives my classic JBL speakers on my desktop and interfaces perfectly with my computer and a separate room-compensation equalizer via TOSLink for a completely buzz-free signal path.Well-built and well-documented, this is a good quality product!