Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp with TPA3255, 240W for HiFi Home Theater AVR Receiver Component, RCA/XLR Balanced Inputs 48V/5A Power

Very Good Amplifier, Very Good Sound, my professional 15 Inches speakers have a sensitivity of 99 db and they pickup every Sound, Humm or Hiss but these Amplifiers have no Humm or Hiss, Sound is excellent no Distortion at full Sound, unbeatable at this price.

Excellent for pricing. I am still using these in my 8lakhs stereo system. Never felt like bottleneck. However, better amp will definitely outperform these. But these monoblocks do what they do. Cheap but not bad in anyway.

Have connected these to my AVR and i could immediately notice speaker separation and more airyness to the sound. It opened up the sound space. The difference was not night and day but very noticable. I had earlier tried to add a power amp to my AVR which costed more than 1lac and to my ears there difference between the two is negligible. Very easily recommended. Only down side is the heat they generate, They get so hot that you cannot hold them in your hand after 1-2 hours of usage. So make sure there is sufficient ventilation, or best put them on a cooling pad or ventilation fan.

Performance is excellent

These are tiny but performance is like beasts. Clear and punchy sound paired with Polk ES20. Loving it

Tiny footprint, well packaged and does the job well. Heat is noticeable but nothing to worry about

Super for 200 w subwoofer

Superb V3 mono Pair in Stereo modes I also tried with 32V 5A supply and surprisingly the cabinet enclosure heating issue got subsided.. Try Thanks Fosi, looking forward for V4.. V5...V6... Like Samsung or iphone models

The four channels of the TPA3255 amp chip are all utilized in a parallel arrangement in this amp. This means the dampening factor on your speakers is x2. If you have a 6ohm speaker this amp sees it as a 12ohm load. Add to this great topology the feedback filter placed at the output stage (PFFB) and you’ve got two unique features above and beyond most class D amps in this price range or higher. It makes for a great sounding powerful amp that can drive just about anything. These can get hot so I immediately replaced the pitiful squirt of thermal compound with Thermal Grizzly Duronaut (which basically performs extremely high without drying out). I then removed the rubber feet from the bottom and strapped on a 150mm aluminum heatsink with a thermal pad between. I then use the amps upside down so the heat goes straight out the top heatsink. Normally it spreads through the bottom and around the enclosure creating a cute little oven for your components. Roll op amps to improve sound, use at least a 48V 5A power supply and Bob’s your uncle !

This thing rocks. Hear the finest audiophile quality.

A pair of these with a wiim pro plus streamer, with variable output, will out perform so called "proper hi-fi", costing 10 to 20 times the price. Believe me these are an absolute steal. I use the with monitor audio silver 6 floorstanders, £1000 a pair and they sound magnificent.

Fosi Audio V3 Mono. A couple weeks ago i recieved 2 V3 mono amplifiers i'm very pleased with them! They sound incredible with my aune S9 c pro dac with trs out from V3 mono in to my S9C dac with xlr female.Incredible value higly recommended!

I had read some reviews, as I am interested in this market a lot, already owning a Fosi V3 and a pair of Aiyima A07 Max's... I had very high hopes for the Fosi V3 mono amps, and was not disappointed! Fresh out of the box they were a little tight and congested sounding, just a bit-no blooming of the sound... Well, 5 hours later and wow!! What a difference! The sound-stage is deep, wide and very clear, with no shortage of power, that's for sure! They sound so good they have already replaced my other monoblock amps! Bass is deep and very tight, the midrange is clear and open, highs are not shouty but again clean and well balanced top end. Excellent input choices (RCA and XLR) and simple controls... Having heard several of these TI 3255 chip amps, all have a similar sound, but the additional realism of the V3 mono is quite audible! And you can swap audio op-amps as well! A killer deal on the amps right now! Buy a pair- you won't regret it! :) Edit: I've been listening to these V3 mono amps for about a week now, and I am BLOWN away by the amount of sound these amps reproduce! True giant killers! I'm more than pleased with these amps! Buy some! :)