Well packagedWorked as advertised

What a beautiful little amplifier! Modestly priced and nicely made. And its power output rating seems fairly accurate; certainly it has more than enough sound for computer speakers or bookshelf speakers. Because it is a power amplifier without a preamp stage, there is only a volume control, no other adjustments, so I precede it with a graphic equalizer.

El equipo es de buena calidad. Tiene un sonido limpio, la música se escucha genial y sin ningún ruido de fondo, con un completo silencio en vacío. En mi caso, con altavoces de 6 ohmios, tiene potencia de sobra para un salón de 20 m2, para mí es suficiente no pasar el potenciómetro mas o menos del primer cuarto de su recorrido. La verdad, me ha sorprendido, los amplificadores tipo D tienen mala prensa entre algunos audiófilos, pero a mí, me ha parecido que tiene un sonido muy agradable. Muy buena relación calidad precio, por poner una pega, no parece tener protección antipop y si lo dejas encendido y lo activas directamente desde el interruptor de una regleta, por ejemplo, puedes escuchar ese temido pop que podría llegar a dañar tus altavoces.

外部スピーカーを使いたくアンプを購入。テレビのイヤホン出力からライン入力。場所も取らない手のひらサイズなのに本格派のスピーカーを余裕で鳴らす。映画館？それ我が家でよくない？

This is a good little amp for the money. Works fine, the supplied power supply is onlyrated for 89 watt output so I figure its only putting out 40 watts per channel not 50.However However all the other amps at this price have about the same power supply.It has plenty of gain, I got full power out driven by my mini PC, TV, Tecsun radio,pixel 6a phone through the usb c to rca adapter and an old Samsung tablet.There was no hiss listening right at the speaker with the gain full. I looks fine and seemsto be built well. The speaker connectors are ok a little small but perfectly usable.This amp is very small with an aluminum body. I would recommend it to a friend lookingfor a small cheap amp.

Vrai ampli de puissance sans souffle qui va plus fort que sa taille le laisse supposer. Boitier solide. Attention pas de réglages basses aigus. Tu peux acheter les yeux fermés

Ordered this as an auxiliary amp for 2 audio channels when expanding my AVR to 7.1.4 sound for Dolby Atmos and it is really good. It is powering my right and left rear surround speakers. I do not hear any hum or hiss when they are on without a signal. Very good, simple amp.

Der Mini-Verstärker macht einen hochwertigen Eindruck und liefert einen guten, vollen Klang. Ich verwende ihn an einem PC, da ich so meine "ausrangierten" Stereo-Boxen einer neuen Verwendung zuführen konnte. Tolles Gerät zu einem fairen Preis. Alles aus Metall und sehr hochwertiger Gesamteindruck.

First off let me say that I have also purchased a Fosi Class AB amplifier and I like very much. Having seen a youtube video showing the difference in the sine waves between a class AB amp and a class D amp, I understood why there is inherently more distortion with class D amps. That being said, I don't know what the electrical engineers did at Fosi but the sound produced for the price paid is nothing short of amazing! The first thing I did was hook it up to a 24 volt 5.7 amp power supply from my SMSL AD18. As compared to the shipped power supply, which is not bad, the sound really seemed to open up. The bass seems more pronounced but very taut and the trebles on the other end really opened up.Where to start... the soundstage produced by this tiny little amplifier is awesome. When hooked up to my bedroom speakers, if I lay in bed and close my eyes its very hard to tell where the speakers actually are. The details and clarity are wonderful, I heard things in some songs that I never noticed before. Also equally impressive is the channel separation. I'm not sure if its because I am used to streaming through units with their own built in bluetooth so I am asking an amp to perform two function and do them both well. The current setup is a BluDento connected by RCA cables. This unit is supposed to produce quality sound when connected by a coaxial cable or toslink optical cable but the best sound is supposed supposed to be produced when connected by the stereo analog outputs. All I can say is that there appears to be no crosstalk between channels and the sound produced is engaging and immersive. Its solid and clean from top to bottom.This is just my 2 cents and your mileage may vary but from where I stand, this is one solid little audio amplifier. No bells no whistles it just does one thing and I think it does it very well.

OK, lived with it for a couple of weeks now, and am really very impressed. My background is a former budget audiophile who has been unable to set up a decent system for six years now- and decided to see what ChiFi is all about. Last system was vintage Amber Series 70 amp/Parasound preamp/NAD cd/Magnepan MMG and I'm comparing this to my memory of that.I've paired this Fosi AudioTPA3116 based integrated amp with Q Audio 3010 speakers and a Chromecast Audio. The Q Audios are small enough so that I'm unable to judge lower region bass availability, and the ChromeCast Audio means that I'm still dealing with Spotify compression, but with those caveats here we go...Very surprised at the available power and the control this had over the (small) speaker cones. Chose it because this board design appears to have more capacitors then others on Amazon, but I was used to having big cans in the Amber and was skeptical on it's high-current demand performance. At least with the small speakers I need not have worried, this sounds easy and effortless within it's smaller wattage environment. Don't sense the amp straining or playing catch-up with varied types of music. They say these things have around 90% efficiency, and it shocks me that there's this much push available from this tiny unit. If you're banging big speakers at high volume you may feel differently, but for normal/louder listening levels in a 300 sq ft room this just pours it out.Transparency and presence are very good, with believable voices and instruments that have impact and some resonance. Sound staging and imaging are also good with easily located musicians in a reasonably wide area- that area is a bit shallow though, without great depth, and the musicians sound slightly distant instead of right there in your room. The important caveat here is the Chromecast Audio limitations. I believe that these areas are particularly affected by streaming through Spotify rather than a direct connection from a disc player or lossless audio feed and my issues may well have to do with the source.The tonal quality does seem dry to me. Not harsh in any way, but vocals and stringed instruments particularly don't have the warmth that I prefer (very dry at first listen with typical improvement over time.) That being said, there's lots of detail here, and you can even hear a bit of breathing/fingering/striking. It's a more analytical approach, and really the amount of information available is extremely impressive for this price. I think this reflects the quality of the preamp that's in there, and that kinda leads to the idea that there's a very short signal path in this thing. With a really small board, no tone controls and only one input, seems to me that even though the chip is playing around with DSP in some way that I don't understand, there's a lot of 'straight wire with gain' positives here.This does not sound like an expensive high-bias AB amp with a 10 pound heat sink. Don't expect that, but this is a much better than anticipated integrated amp that is of high enough quality to allow for enjoyable critical listening and is great value! It sounds considerablly better than a typical 1980s/1990s mass market receiver, and at this price it's a ridiculous bargain. Back in the Dino days, you would pay much, much more money to get this kind of sound quality. A great entry into higher-end sonics.