Fosi Audio BT30D Bluetooth 5.0 Stereo Audio Receiver Amplifier 2.1 Channel Mini Hi-Fi Class D Integrated Amp 50 Watt x2+100 Watt for Passive Speakers/Subwoofer Powered

Perfect little amp. Stylist and functional. Ideal for my needs. I have it hooked up to a pair of old Pioneer (100w) speakers, plus a Polk subwoofer. The units MAX Power Output: 50W x 2+100W. The Bluetooth is fine, and the connection was quick. It does from time to time drop out, even when my mp3 player is only 2-3 metres away, but in the main its stable. I have notice though, that using my other MP3 player, which is an iPod touch, then I get no drop out. Its very loud when I want it to be, I control volume via the mp3 player. Good sound for me, but I’m not audio master. It packs a punch for such a small amp, it handles my speakers and sub well. I would definitely recommend this unit to my family, friends and colleagues.

TLDR: I love it! In my home office I have 2x Gale Audio monitor speakers, and I was previously powering them through an old mini hi-fi, using an amazon echo to play music. I wanted something smaller, and with better EQ controls (yes, the mini hi-fi had none) I also wanted the flexibility to add a sub at some point, so this Fosi 2.1 looked perfect. Initial setup with the 2x bookshelf speakers - the sound is already nicer than the old hi-fi - and such a small neat package too. I had to run it around 3/4 volume, as I want the alexa to control the volume, but that's fine. Other reviews have mentioned hiss, but I dont have any. Then I remembered I had an old sub in the attic, so I went and got it, couldnt get it working in active mode, so switched to passive, and I have to say it further improved the sound again. I'm really pleased with this little amp, it is very neat and tidy, and does exactly what I wanted it to do. Thoroughly recommend if your use case is similar

Remarkable sound for the cost (after a few hour use to burn in) I hooked this little thing up to my Monitor Audio Silver 200' floorstanders and using a good source like my Cambridge CXU into the phono's and playing CD's this unit provides a surprisingly wide spacious sound stage and good solid bass rhythms, the bass goes deep as well and sounded like it actually had more low end clout than my £1500 hifi amp, the sound gives good bite and texture to instruments making strings, violins and cello's etc sound very real, I was shocked how good it sounded tbh. Of course all is not perfect (lets not forget its and 85 quid mini amp) and where this little digital amp falls down is on refinement to the music, it's a little course and hard in the treble quality and lacks the fluid creamy sound of a good hifi amp so it's certainly not a substitute for a good hifi amp but as a bedroom setup or for the computer it's excellent. I then connected it to my THX soundworks computer speakers and 8 inch passive sub and again it proves excellent with more power and punch than I will ever need, even with the standard power brick it has lots of usable volume. Bluetooth sounds just OK as you'd expect and the signal is stable BUT the major flaw in this unit is ANYONE ELSE CAN CONNECT AND PLAY MUSIC OVER IT via Bluetooth WITHOUT your permission as it does not have a pair button or ask for a code on your phone, this is really stupid and why I have only given 4 stars.

Beafy, powerfull

Very product good value for money not fussy.

I run a very low noise floor audio interface into this amplifier with QED cables and clean power. The hiss when sitting in front of near field monitors makes it almost unusable and it will be getting removed from my system. I wanted the analogue sub output and for this it is very useful along with its size and bluetooth connections. Ironically it is the amplification part that lets it down. That said it is probably best of a pretty average bunch if you need such a small size.

Nice sturdy little box with dials feels like an amp should should just tiny. Sounds great with connected echo input or phone over bluetooth certainly no worse than entry level '90s predecessor. Comfortably drives more volume than I need to annoy neighbours from a pair of 8 ohm mission bookshelf type speakers. I now have lots of space and removed nagging feeling I was burning £5 notes using the old one even if it takes about 10 years to pay for itself. Negatives, the bluetooth arial dwarfs it and rather ruins the lines could be useful outside. No L/R balance but something I don't use. No way to prioritize line-in over bluetooth and have to tell connected device to disconnect. But for the money cannot complain about minor compromises (£84 deal) so still 5*. Probably would have gone for model down without the sub out but at the deal price this was cheaper at time.

Pleasantly surprised by how nice this little amp sounds! Bought it to use on my PC for music etc.. Hooked it to a pair of Denon bookshelf speakers and a Pioneer passive sub and the sound is great. A few little tweaks to the sound adjuster knobs on the front and its sounds lovely. One thing to note that using a 3.5mm to RCA from my PC's motherboard, the volume is crazy loud! my PC's volume bar is on 40% and its more than loud enough. The volume knob on the amp isn't even quarter turn.. So just be warned if using with a PC. Otherwise.. a top piece of kit :)

The unit itself feels to be good quality. All of the knobs are nice to use etc. Bluetooth seems to work well in close proximity but haven't tried through walls or anything. Sound quality is okay, and drives my wharfdale bookshelf speakers reasonably well. Good: - Price - Build quality/feel - Does what it says on the tin Not so good: - Sound quality (as you might expect at this price) Good value little package!

I bought this unit for improving my movie/TV show watching experience - just basic video from Netflix and other such platforms. Nothing to complain about for this use case. The unit is small and quiet, has very good volume output (I have it at half volume and then control the sound via my TV with a 3.5mm to RCA adapter, more than enough volume for a living room), configurable bass/treble, and good connections - easy to start with 2 basic speakers and then add a subwoofer later on. This setup is already a much bigger improvement when compared with basic tv speakers. The added Bluetooth connection also makes it easy to listen to some music. It most likely cannot compare with more expensive setups - but for a basic ocasional listener, it's more than sufficient and I'm very satisfied with it.

Excellent mini amp to go with decent passive bookshelf speakers and subwoofer. Will beat a soundbar setup any day. Very smooth & clean sound. Bluetooth connectivity is seamless and pairs quickly.

J'ai choisi ce produit afin de pouvoir utilisé mes haut-parleur analogique pour ma platine vinyle et en Bluetooth connecté à un vidéoprojecteur. Tout fonctionne très bien, je n'ai aucune perte de son, je dois simplement soulever deux souci : - Il n'y a pas de bouton pour autoriser des connexions aux nouveaux appareils. Si vous n'eteigniez pas l'ampli, n'importe qui peut se connecter dessus - J'aurais du prendre la version avec la télécommande afin de régler le volume. Pour mon utilisation, cela m'oblige à me lever (très) régulièrement pour régler les basses/aigus et le volume lorsque je regarde un film, afin de ne ma géner le voisinage. Si vous n'avez pas les deux contraintes citées ci-dessus, c'est un super produit et très compact.

Estaba buscando un miniamplificador para usarlo en el salón de casa con unos altavoces que también he pedido en Amazon (aún no me ha llegado). Por lo pronto los estoy probando con unos antiguos altavoces Jensen y el resultado es espectacular. Tiene unos agudos muy claros y una buena separación entre medios y bajos. Me falta probar un subwoofer (este dispositivo tiene la peculiaridad de soportar subwoofer activos y pasivos). Muy contento con la compra. Lo recomiendo.