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

I saw a review for the revamped version and thought you know what, the price seems reasonable to give myself a go at the class D type amps. I am not quite sure what I was expecting, I was hoping for a decent sound at a good enough volume for my small room and to work with some old Cambridge Audio S30 speakers I have lying around.So, I have a Fiio K5 pro connected as a preamp/DAC, an old laptop as the source, and the afore mentioned speakers.I am not sure quite what I was expecting but it wasn't this, it sounds great, not going to get too techy about these things but can I hear everything? yes, is it loud enough for my small (11'x10') room? my goodness yes, though of course there has to be some consideration for the neighbours.A very decent full sound from this setup especially for the price, and I put the audio from the TV through it via the optical and that's really decent too.No Sub of course, but in this small room the sub can be overwhelming not just for me but very definitely for the neighbours below.The bottom line is for the price, it sounds great and is tiny and out of the way, built-in power might be nice but really not the end of the world and it takes a little time to get used to the fact that the bass and treble controls are the "wrong" way around.I would totally recommend it if you want to breathe new life into things you have lying around or even if you want to create a small but powerful system from scratch, a pair of decent speakers and you are away. If there is better than this for the price then get it, because blimey this is good.

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...)

This product helped me get back into hi fi after a 20 year break, good clean clear sound. Perhaps a touch too bright, especially when pushed, but what do you expect for the money. I've since moved on to a class ab amp, for significantly more money which sounds more sophisticated but you pay for it.

This amp certainly packs a punch for how small and low cost it is - the treble and bass controls are actually decent and it drives my Monitor Audio Bronze speakers very nicely.If you're after a small/cheap amp, this is definitely the one I'd pick.