S.M.S.L A50 PRO HiFi Power Amplifier, High/Low Pass F, 2.1-Channel, Infineon's MA12070P Chip, Bluetooth 5.0/USB/Optical/HDMI/AUX input Passive subwoofer with adjustable volume, with Remote Control

Very well constructed for the price and compact as well, I was using a digital amp with analogue controls, this amp is digital all the way with the very intuitive single rotary encoder knob and the three digit display. Once you get to know the different display menu modes, tweaking with just the front knob is a breeze. The various eq modes, bass, treble, tone presents, high and low pass filters and subwoofer volume are quite subtle to my recollection but it's well worth spending a bit of time tweaking them to your tastes as the amp has virtually no problems filling my listening room with a very balanced 3d stereo image soundstage whether using the excellent bluetooth receiver or the optical in. I have very little use for the usb dac in, 3.5mm jack in and the HDMI ARC, I have a 200 cd changer, media streamer and a linear tracking turntable connected to an Arylic BP50 preamp feeding the S.M.S.L. via an optical cable . Then out of the stereo L & R and subwoofer outputs to a pair of Wharfedale Modus Cubes and a matching pair of Mission 73ps passive subwoofers. The remote control is a nice addition and it seems to work well but my room is so small I can just reach over to the amp and use the rotary controller. I bought this amp because it had a passive sub output and an optical in - these and everything else works flawlessly - a great little modern amp for a bargain price.

Excellent little amp . Amazed at the quality for the money . Have it connected to a Cambridge streamer with great results. Highly recommended.

I bought this for a present for my husband so this is his review. For it's price this DAC amplifier is very good. I replaced a massive Onkyo TN414 AV amplifier with this teeny device. The sound quality is very good and plenty loud enough. The remote control is a bit slow. The number of inputs is excellent for the price. I do however have one issue that would not affect most users. I am an amateur radio operator (HAM) and this DAC produces severe RF interference across most of the bands from the speaker cables. It should adhere to UK interference compliance but quite obviously doesn't. I have emailed S.M.S.L but have not yet received a reply.

Bought this as Used - Mint. There was no manual in the box and no optical cable, which was what I was intending to use with my PC and the AUX with my PS5. I got the unit, a USB-C cable and the power block. I needn't have worried though. I plugged it in via my USB switch that is connected to both my PC and PS5. The sound on PC is the best I've ever had and far exceeded the Edifier amp it replaced. Better still it turns out USB audio is compatible with the PS5, so much better than the AUX analogue sound I was used to. I am only using fairly standard mini hifi speakers/subwoofer, but the clarity is gorgeous. The omission of the Optical cable turned out to be a blessing in disguise. Very happy with the sound.

Can't use a jamo Galeforce 35 as a passive subwoofer no sound is pushed through it no matter what settings you try, but besides that this is a excellent amplifier now I can connect my vintage speakers to any modern TV as this amp has all the modern and "vintage" connections. The remote works well too. No issues at all. Small box doing big things.

You need to buy an optical cable connector, not included. Try Argos £8.99. Very small device, so connecting speakers is a bit of a faff. £90 is reasonable money for this gadget. Sound OK, but not great from the Sony TV, not very loud. The issue may be the source, as it is going into a pair of quality B&W speakers. Output certainly better than the awful SonyTV output. Might get a sub-woofer, which this also takes.

Great sounding amp, I purchased (AS NEW), but arrived with a missing DIGIAL PORT COVER. So the cable does not click into place. (Works if I hold the optical cable in place) so the device is fine, probably the person who returned it broke the port cover. Reached out to the company but zero reply! I cannot be bothered with the hassle to return so will maybe use one day if I ever purchase a second pair of book speaker, but with analogue cables.

Used it to connect two Ruark shelf speakers to my TV via audio cable/ Line in Amazing improvement in sound quality ( over TV internal speakers) Also easily connects to my iPhone via Bluetooth. Remote works well. Great value for the price (haven’t used the subwoofer connection) very happy with it

Kupiłem ten wzmacniacz ponieważ ma opcję podłączenia pasywnego subwoofera. Niestety okazało się, że 100 watów mocy jaką się chwali SMSL A50 Pro być może jest dostępna, ale przy oporności 2 Ohm, więc podłączając 4 lub 8 Ohm subwoofer nie uzyskacie z niego prawie nic. Mój sub przy maksymalnej głośności wzmacniacza wydaje zaledwie cichy pomruk. Ze względu na to będę chyba zwracał ten wzmacniacz. Kolejny minus to regulacja bass treble. Nie działa ona tak jak niezależna korekcja niskich i wysokich tonów, a raczej jako "wilk eq", a więc kiedy dodajemy treble - znika bas, kiedy dodajemy basu - znika góra. Najlepiej zostawić te ustawienia na zero. Pomijając wady sprzęt brzmi całkiem dobrze i nie brakuje mu mocy we współpracy z głośnikami stereo. Plusem jest wejście HDMI eArc do podłączenia TV. U mnie to działa. Gdyby nie niska moc wyjścia na subwoofer byłby to bardzo dobry wzmacniacz w swojej klasie cenowej.

Werkt perfect. Wordt dagelijks in combinatie met een TV.

Este amplificador funciona muy bien con los altavoces que ya tenia de 20 w y 6 Ohnios.

Great product for price. Incredibly small and would recommend for apartment

Ottimo amplificatore stereo (+subwoofer). Altamente consigliato per chi ha delle buone casse stereo e non vuole acquistare una soundbar per la TV. Compatibile con l'uscita HDMI-ARC, quindi si connette facilmente a tutti i televisori moderni e si puo' controllare con il telecomando TV. Apprezzabili anche la possibilita' di utilizzarlo in bluetooth e con ingresso ottico. Qualita' sonora eccellente. Direi anche meglio di molte soundbar blasonate, se si utilizzano dei buoni altoparlanti stereo