Fosi Audio V3 Stereo Amplifier Home Audio 300 Watts x2 Power TPA3255 Class D Mini Speaker Amp 2 Channel Audio Component for Passive Bookshelf Tower Speakers Desktop Home Theater with 48V Power Supply

The media could not be loaded. Ordered the Fosi V3 to replace a Fosi 20a I had purchased some time ago. The main differences are, the V3 is a more simplistic setup, promises more power per channel, and uses high quality parts internally. It can come with either a 32 volt or 48 volt power supply. Opt for the 48 volt power supply, you will not regret it. The larger more powerful power supply will get you higher volumes with better quality output On the back side of this unit are connects for a pair of speakers and an analogue input. The older Fosi 20a just did not have as much power particularly with only the supplied 24 volt power supply and fell short driving my Polk Atrium 6 speakers at loud volume. Now, I am using this as a garage system. Hence, the reason I chose to go on the cheap with this system. But....the Fosi V3 got decent audio reviews so what the heck. The garage system is a music system to accompany working on projects or the cars vs. just sitting and listening to music like I do with my home systems that cost much much more. So after connecting up an older generation Echo device to stream music, I used 14 gauge audio cable to connect the speakers to the amp. Very easy to do. The result is as you see it in the attached video. Loud enough for me and the overall sound quality is very good. So, this unit has few connectivity options but what it does, it does well. What I really like about this amp is its small size allowing me to store it in my garage wall cabinet. I would imagine this amp could be part of a home system in a small to mid size room Just be sure to match it up with a pair of good speakers. Speakers with a high efficiency rating will serve you best that is 90db or better. Recommended.

I really like how this little thing sounds. I've heard a lot about class D amplifiers, but I had no experience listening to them. When I listened to it for the first time after unpacking it, I was shocked, I didn't believe that something so small could play so well. But of course there are certain nuances, but they are not significant. Overall, I'm very satisfied and recommend it to those who are looking for inexpensive but relatively good sound. Delivery was fast, it came in good condition.

300 wats per channel? (RMS)? not in this universe. Some dubious HiFi manufactures, back in the late '60s, used a rating system of "IPP" (Instantaneous peak power) Which was the momentary highest possible power an amp could deliver before producing more distortion than music, or perhaps exploding (hyperbole). This seems to be the case with most of these Chinese mini amps. That being said, if you can get by with a realistically rated 75 WPC X2 amp this might be a good choice, your cup of tea.Actually, it sounds pretty good especially after installing a pair of Sparkos op amps I had laying around.I'm using it to drive a pair of Yamaha outdoor speakers on our screened porch, replacing a Dayton DAT-120.This little Fosi V3 is defiantly a step up in sound quality. The size is right, the price is right, light on bass, and it works pretty well for a tiny class "D" amp. Did I mention the price?

Bought this with the intention of hooking it up to the output jacks on a Sonos Port. Hooked up to a couple of outdoor fosi speakers https://www.amazon.com/gp/aw/d/B0BK4J6T1M?psc=1&ref=ppx_pop_mob_b_asin_titleAnd thru Sonos or thru Bluetooth it sounds fantastic. Great fidelity and visualization. Clear highs and lows with zero distortion at the max output level.Very pleased. Great product.

Most class-D amps sound like really loud clock radios. This one sounds more like what I'd have expected to pay $300-400 for a good class-AB ten or fifteen years ago.

First, I'd like to correct one completely wrong review. They claim the default power supply with only provide 30 watts of power. This is incorrect on simple electrical values. 32 volts and 5 amps gives you 160 total watts, or 80 watts per channel. They did correctly state that you cannot get 300 watts per channel from this unit, even with the 48v 10 amp power supply. This will give you 480 watts total or 240 watts per channel. If you really think you need that much power for your speakers though, you're kidding yourself.Now, the unit itself provides a very nice and mostly balanced sound. Lows will be a bit forward though. It's definitely got some bass punch. If you pair it with one of Fosi's preamps with tone control, you can dial this in well enough. I honestly prefer a bit extra bass. I've been running this unit for about 8 months now with no issues. Great amp at a great price.

So I want to like this amp but just can't love it. I bought it for my wife's hobby room to use with her Sony turntable. The turntable is set to line level and I've verified the line voltage is hitting over 1 V regularly with my scope. The Fosi feeds a pair of ML bookshelves at 5 Ohm, 92dB sensitivity that I know will get plenty loud at 40-50 watts as I have 3 pairs in different places around my house. But even wide open the FOSI just won't get to a satisfactory volume level.I have the 32V power supply so I know I'm not going to get max rated power at 4 ohms but based on my math I should still be getting enough power to bring the ML's to a very reasonable volume in the 12x12 room they're in.I've had the unit too long to return it and it does work but it's a definite buyer beware for me.

La verdad es que Fosi está haciendo las cosas demasiado bien en cuanto amplificadores con prestaciones para audiofilos. Lo tengo con el wiim pro y los altavoces vintage Sony ss-d105 y me quedé atónito. Mucha calidad de sonido.