Fosi Audio TB10D 600W TPA3255 Power Amplifier Home Audio HiFi Stereo Class D Digital 2 Channel Integrated Mini Passive Speaker Amp

This little amp drives my 3-way speakers very nicely. Nice clean sound and bass. It's small and compact and will save you space on your shelf, desk etc. Good price too. My nitpicking downsides is that the power supply is fairly large, about half the size of the amp itself so it might not save you that much space depending where you want to put it. Also, if you want to use the full power of the amp you need a better power supply which I'm not sure where you would purchase one from. A quick look at Fosi's site found that they do not sell it but the power supply included should suit most people. The on/off switch is retro which is cool but it looks fragile and if it breaks then you're stuck unless it breaks on the on position. I do like the simplicity of it. No built in radio, remote control or bluetooth which is fine by me. No headphone socket but that's okay too as I have one on my sound mixer. Overall, I really like this amp and hope it lasts a long while!

This little box of miracles beggars belief, but before I go into details, let me first explain my set-up as I'm sure many of you may be planning something similar. I'm using a Samsung smart TV as an entertainment hub (there's Blu-Ray input, Freeview, Netflix, Rakuten, and Spotify or Deezer, and both Bluetooth and USB music interfaces, plus countless radio stations). Naturally I wanted to use the TV's ARC HDMI output so as to have volume control from the TV remote. To these ends I connected a LiNKFOR HDMI DAC to my TV's HDMI ARC port, which talks to the FOSI Amplifier through RCA cables. My speakers are a pair of Monitor Mk2 Audio Bronze two way units, tethered on fat copper cables. This little amplifier, with the DAC, cost over six times less than my prior Marantz streaming amplifier (and that only lasted as long as its meagre warranty).In my own acoustic environment I have the treble at 10 o'clock and the bass at 2 o'clock. The rich, clean, and accurate, sound quality deceives you into thinking you must have shelled out a lot more money that you did. A very great deal more. In fact I can hear fine detail that my Marantz NR1200 receiver could not ever render through the same speakers. Distortion is imperceptible at any satisfying volume level, and I have had it at levels which made the wife's hair stand on end. With the standard FOSI power brick easily obtain 75w RMS per channel, with scope for more. This is already far more than needed for my listening area. My FOSI volume control stays at 12 o'clock, and there's absolutely no reason to crank it any further clockwise.I'm very impressed with the performance, and in terms for value for money - gobsmacked. Nine months "after taking the red pill" I ordered a slightly more complex TPA3255 chipset based Class D Amplifier with Bluetooth, plus a DAC, for my digital-self - as well as a preamp so that I can cater for my retro-self (and enjoy my headphones and play vinyl as well).A week later I went back to the purity of this TB10D, and substituted the Fosi PSU brick for a cleaner PSU which is made by "Mean Well" and marketed by RS Components. The DRP-480S-48 makes the TB10D even more of a performer (and I'm not just talking of volume here!) since it outputs a very clean maximum of ten amps at 48v, and could power far bigger speakers than my Audio Bronze cabinets.PS/... My attention has been drawn to one of 'those' so called 'influencers' that publishes YouTube reviews "for a living", because there is a lousy review of the Fosi TB10D by cheapaudioman. He rants needlessly for almost half an hour about white noise and hiss, electrical arcing, and a few other subjective problems (as he sees them) with the amplifier. My suspicion is that he simply has an axe to grind with Fosi products, and his review only covers a prototype he obtained, which is hardly relevent (a bit like him...)

Produces good sound for my PC > DAC > (this amp) > bookshelf speakers. No discernable background hiss.Amp's On/Off switch seems upside down ie it should toggle down for On.Volume control is not linear at lower volumes, but usable.

Bought it as a temporary replacement for my NAD C370 which broke down recently and to be honest I'm genuinely surprised of the performance I got for the money. I know thing or two about high end audio. I had amplifiers from Yamaha and Accuphase In my system and I'm not going to convince you that this little gem is as good as 2k amplifier from leading audio brand but for 90 euros you get pretty damn close. I have tested it with Rega RS5 and Focal Aria speakers and value for money here is incredible. One thing to note, this amp is on a bright side and thanks to tone control and dailing down the treble I was able to get the sound signature I prefer. If you trying to get into hi-fi this little amp is great way to start. Highly recommended, you will need to spend well over 500 euros to match the performance here. The only downside I can see is lack of remote control but at this cost it's understandable. Well done Fosi Audio!