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

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...)

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.

Alright Amp, cannot do 600W constantly it seems like they are short use for as i have 2 8Ohms 300W speakers and the amp turns off after 1 minute of use, however does look good.

Paired with some old eltax 3 speakers I’m amazed at the sound quality and punch. Great amp well worth the price . I’d been looking at branded amps 3 or 4 x the price but this got good reviews and for the bargain price I’m happy I took the gamble .

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!

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!

This is a surprisingly good little amp, very clear and VERY powerful. Hi/Lo EQ works very well.

1) If you listen to AM radio on any frequency below about 15MHZ (short / medium / long wave) you need to be aware that this amplifier generates a MASSIVE amount of radio interference. Even radio-controlled clocks won't set to the correct time if this thing is powered up in the house. 2) The supplied power block is only capable of supplying enough juice for the amp to give about 60 watts per channel of output. Apart from that it's OK, but, for sure, this thing generates a huge amount of electrical interference. You have been warned. Edit >> bought and fitted clip-on ferrite suppressors on speaker wires, input wires and an extra one on the PSU wire, this has brought down the interference greatly. Pity they aren't supplied with the unit.