Fosi Audio BT20A Pro - A Modern Speaker Amp Review 

I've been running a BT20A Pro with my turntable setup since June, awesome little thing with a quite pleasant sound. Probably not going back to traditional Class AB amps any time soon 😅

In my opinion, when you upgrade the removable Op Amps - in particular, with the likes of discrete versions from Burson or Sparkos Labs, the sound qualities of the BT20A Pro will be elevated substantially - that is wider soundstaging, a tonal quality approaching class AB amps, more depth, and smoother (less harsh) transients and instrumental timbre. I was pleasantly shocked at the audio reproduction when this was accomplished.

I like it and will order one soon. I still need a good compact (not portable) cd player close to the size of the amp and not made of plastic.

Good video. Just missing a listen test with your speaker.

Having enjoyed this review and others I have just ordered this model for £101 via Amazon UK Ann now looking forward to hooking it up to my new Pioneer CD player and Celestion book shelf speakers on wall brackets. I shall let you know how it goes and if it doesn’t it’s easy enough to return the goods !

I wish they would have incorporated an input selector within the power switch such as on/off, BT, & RCA input. I purchased this unit about 6 months ago and haven't even opened up yet. I plan to use it for a little bedroom system with a pair of Wharfedale Diamond 12.0 bookselves and a WiiM Pro streamer. Should be awesome!

Excellent sensible informative review

Kodi i love you

I've had some very nice and expensive tube amps, e.g. Cary, but this little Fosi beats them sonically and power-wise. And the price! It is one third the cost of the TKD volume control on my old pre-amp. Well, I'm getting older now, so I doubt I'll ever buy another amp.

Excellent videos on this channel, keep up the good work!!

does add preamp like p3 to the bt20apro will increase significant sound quality?

Fosi are giving these things away like sweats. (candy)

Hi, and thanks for the review. I am far from hifi knowledgeable person, but I appreciate good sound. I understand that the bt20a pro has a DAC paired with the bluetooth receiver in order to convert the digital to analogue, internally. How this DAC compares to a descent DAC in terms of quality?

The narrator and the hands seems like 2 different people.

cool, im sure will enhance most 'multimedia' speakers

Is the preout only for subwoofer or it can be connected to 2.1 home theater..?

But non of these having remote control ,?? For avarage room size like 12/12/12 FT which is good? Za3 or BT30A ot 20A? And speakers, I can use subs?

Good evening. I have one question, if you can answer and explain it to me. My friend told me that these Fossi devices work better and have better sound than Quad 405, 44 and fm4? What do you think? Thanks in advance for your reply and greetings from Serbia!

hey do you know what frequencies are being affected per bass and treble exactly ?

I bought two of these with the Fosi 48v PSU's. Both idle warm then overheat and shut off after about 10 minutes of playing music. Serious bummer. My Fosi BT30A's had no problems, just didn't sound as good. These are crap.

Do you think necessary also a DAC?

what's the speaker ohms for this amp?

Can i connect it to AV receiver ?

Any big difference between this and the Za3? Thanks!

This black ,,brick,, have balance knob ?

Only problem with it the Bluetooth connection isn't secure.

I used this with Q acoustic 3020 and yamaha active subwoofer (yst rst-300).. it make my speakers lack of details and too bright.. That result makes me back using my Topping MX3.. For me, Topping MX3 make a better sound than fosi bt20apro

New audio enthusiast here. I'm planning to setup the best, simple 2.1 I can, for music and movies. I'm thinking the HSU hybrid 3 with CCB-8. It's 2 CCB-8 bookshelf speakers and a VTF-3 MK5 (15") subwoofer. And power it with this Fosi. I'm wondering if this would work? So I would stream movies from my TV with a set of RCAs to the Fosi Audio BT20A Pro? Then line out to the speakers and the preout to the sub? And all my music would come from bluetooth on my phone I guess? Or stream through my tv. I don't need any other receivers or DACs or anything else right? I don't have any other equipment right now. In the future I may expand to a proper 5.1. Thanks!

01:28 Sounds like you Know your Way around Knobs