Fosi Audio BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control

Incredible product, the sound quality is great over Bluetooth and the range is unbelievable. There’s also very little delay in the playback, so watching videos are no issue with the audio syncing nicely. The whole unit is so small which was very important for my space, yet performs well. I’m not an audiophile but I can definitely say the average consumer would be thrilled by the output, and not to mention the value for money over the competition.

I love this thing, and can't believe how loud it is! So one thing to mention is that you can't get the full 300w of power with the supplied power supply (32v) - they sell a 48v one I think on Amazon if you need that. Yet, the room I am in is 5m by 3.5m, and I don't think I'll ever push the thing past 1/2 way. Most of the time, considerably less than that. So the above does not bother me. It is powering some Cambridge Audio SX-50, and collectively they sound amazing! I briefly had some Edifier active speakers before this (cheaper, but not by that much), but sound comparison wise, there's no contest. So this is a pretty simple device - no remote, and not a lot going on controls wise, but having the two inputs (one physical, and the other bluetooth) is perfect for my needs. And the manual treble and bass are useful at times too. I've not got a sub plugged into this - for my needs, I don't think I need it (the speakers are pretty good without), so can't comment on that, but may add something in the future, so good to have the option. I'm using this for armature music production, and also for listening to music as I work, and its great for both!

Used as a desktop system with Mp3 player (wired) and a soundblaster dongle from my laptop. I have a set of vintage Canton 4 ohm speakers that are efficient connected with banana plugs and pure copper wire. I am using the 32v supplied power supply. I almost returned this as when I first started using it the treble range sounded distorted and overall the amp sounded thin. Fast forward to around 20 hours use and the little Fosi is revealing itself to be a very capable unit. The separation, clarity and reserves of power are now all evident. The control through the range is now very good , excellent bass and clear treble. The tone controls work well allowing acurate amounts of adjustment if needed. Connection: Sorry I don't use bluetooth but I expect it works well. The 2 phono sockets are fine to use with whatever you plug in. The 3.5mm pre out: Disappointed with this it would not send anything to my powered sub, not a deal breaker but research on the net shows this is a common complaint. Fosi should have put a dedicated sub out for this. The build quality is fine and with the 32v supply only ever gets slightly warm. I have also read that the alternative 48v supply causes the amp to run quite hot. The output for me is enough and I can listen clearly in the room away from my desk. Apart from the issue with the pre-out I can still give 5 stars due to the overal qualities of this little amp.

outstanding, sound, bluetooth, tone controls are excellent. also quality connectors and build.

Certainly a neat petite little thing, nice sleek finish too, but there are a couple of things I will mention. Firstly, if you're not planning to use banana plugs on your speaker cables, then tightening in the bare wires to get a good connection maybe a bit tricky if, like me, you have big fingers, because the 4 connections are spaced very close together. It is doable, but I found it a bit tricky to get them properly tight, and if my cables were any thicker than the 16 gauge 1.3mm Amazon basics speaker cable that I used, then you won't be able to get all the wires through the holes, so banana plug connections are the best option for this amp in my opinion. The power switch does seem a bit feeble, and I keep forgetting to turn it off cos the power light is so tiny and dull. Also, the 3.5mm full frequency out doesn't seem to send that much true bass to my 80w powered sub, and I have to turn the sub up to the max (which I would never normally need to do if using the RCA line outs from my old amp) to get any amount of bass coming through it. Another thing is that on the amp that Fosi sent me, the fixed notch points on the bass and treble knobs are both off-centre and the don't rest at the same points either (Refer to the attached photos). The volume button is irrelevant as it doesn't have a central notch point, it just happened to be in that position when I took the photos, but both the treble and bass knobs are shown sitting in their notch positions, I wasn't however too bothered as it's not a major issue, and I bought the amp when the price was reduced down to £93.49. I can't speak for the Bluetooth feature, as I haven't bothered using it yet. Although I've mentioned these negative points, all in all it's a lovely little amp, and over all I'm pleased with it.

Il miglior abbinamento al mio WiiM Pro testato fino a questo punto, solo un po' meno "caldo" del valvolare (ma sarebbe strano il contrario visto che quello ha un costo dieci volte maggiore e più di 20kg), ma incredibilmente buono per il suo prezzo. Comparato sia con il V3 della stessa Casa che con A07 di Aiyima esce vittorioso grazie alla presenza del controllo di tono. Non di tanto eh, anche quelli suonano molto bene (vedi mia recensione), ma la presenza del controllo di tono evita di dover impiegare l'equalizzatore digitale del WiiM Pro. Non è che questo non vada bene, soprattutto il parametrico, ma sporca un pelino il suono. Proprio sul controllo di tono occorre spendere due parole: è molto efficace, correttamente posizionato come frequenza di intervento, sia per gli alti che per i bassi, e non introduce il minimo rumore. Un po' peggio va per la parte Bluetooth, obiettivamente non all'altezza del resto. Il confronto è stato condotto usando come sorgente sia Amazon Music Unlimited che Radio Paradise (ovviamente steam FLAC). Questo all'hardware, oltre al già citato WiiM Pro, un paio di diffusori Chario Hiper 1000 (mi piace molto quel tipo di sonorità). Ultima nota: a meno che non abbiate un ambiente molto grande anche su diffusori da 8Ω (che consiglio) l'alimentatore standard da 32V è più che adeguato, e questo vale per tutti gli amplificatori basati su TPA3255. L'alimentazione 48V offre certamente qualcosa in più sia sotto il profilo della potenza massima che nel dettaglio, ma tutto sommato non al punto di giustificare l'acquisto di un alimentatore che da solo costa più della metà dell'intero amplificatore. Acquisto raccomandato? Ma certo che sì, senza sé e senza ma, lo ricomprerei domani mattina! Aggiornamento: come si vede dalla nuova fotografia, ho completato il nuovo impianto con DAC SMSL Sanskrit 10th MKIII (perso "usato come nuovo" all'incredibile prezzo di 67€). Adesso il suono di questo piccolo impianto è letteralmente imbattibile.

Ürünü fiyatına göre değerlendirmenin daha doğru olacağı kanısındayım. Dali Oberon 3 ile kullanıyorum. Boyutuna göre, gerek detay, gerek bas ve tiz performansı olarak memnunum. Hızlı ve sorunsuz teslimat için Amazon'a teşekkürler.

Works well and happy with the sound quality. Bluetooth connectivity reasonably. And looks and feels well made. I use it everyday all the time and it’s on for most of the day. No issue with performance. Currently driving a pair of B&W DM 110 speakers.

It seems that I got a particularly broken unit, in which the Bluetooth module caused an annoying crackling and buzzing sounds. The manufacturer's support team was simply professional and I was positively surprised by the level of understanding and support I received.

Estuve comparando diferentes amplificadores de clase D para conectarlas a unas bocinas polk de exterior, entre ellos Nobsound y Dual, en alternativa a comprar un SMSL ya que sus precios son más elevados. Su tamaño compacto me pareció muy conveniente para su fácil almacenamiento, en comparación a otros como el Dual que es mas grande y voluminoso. Leyendo reseñas y viendo diferentes criticas de youtube me decidí por este amplificador Fosi, vi que un problema recurrente era la pobre conexión vía bluetooth, por lo que de antemano decidí comprar un adaptador para esta función, se puede conectar por los puertos RCA o por AUX. Probé la antena bluetooth que trae el producto y no me pareció mal si solo quieres tener un dispositivo conectado, pero si como yo, buscas que sea fácil cambiar entre dispositivos para reproducir audio y tener un rango mas amplio de conexión, te recomiendo comprar un adaptador multidispositivo con mas alcance. La calidad del sonido es muy buena, se puede apreciar bastante bien el sonido y tienes 3 controles para hacer modificaciones. Los controles de bajos y altos, hacen un buen trabajo pero nada excepcional, lo cual es aceptable por el precio del producto.