Fosi Audio ZA3 Balanced Stereo Amplifier Home Audio Component Mini 2 Channel Mono Amp TPA3255 for Subwoofer Desktop Home Theater Bookshelf Tower Floorstanding Passive Speakers with 48V Power Supply

What a monster amplifier in a pint sized metal box. Get two & go mono with 250 watts per channel and watch those those tough speakers rise from the dead.. Add some Burson Audio Vivid V7 Op-Amps in it and man this thing becomes a beast with all that 48v d.c power input ! At this price it's crazy how they make it possible to get so much !

These small class D amps are exceptional value for money! I have amps that cost 20 times more than the ZA3 but does not deliver even 5 times the performance. I tried this (just for fun) with my power hungry Sonus Faber Sonnetto I bookshelves and it managed to make them sing beautifully up to the max volumes I listen to (70-80 db). I use two of them in mono mode to power my desktop speakers mainly for nearfield listening. The only thing I miss is a high low pass filter for the sub output. This is honestly exceptionally priced HiFi! The performance makes the price a steal! And I am so inclined to build an entire system of Fosi products just to compare its performance to price against my other ridiculously priced higher mid-range systems, which I 'm sure this will give a run for the money! I heard some premium and expensive high-end amps, and this definitely does not compete with them (I mean, come on if you're expecting this!), but for mid-range and other entry level products, I believe this thing is a certified LGK!

Can’t get better than this for the price.

If you’re thinking of trying something new, just go for it. You won’t be disappointed. I bought one ZA3, liked it… got excited… and ordered another one. ( Because why not? I can afford a mono block :) now) I guess I’m the new audiophile on the block now 😎🥃. I’hv got Cambridge, NAD, Marantz paired with KEF ls50 passive older ones , Rp600 m2 , So when I tried two ZA3s, I thought I’d reach that high level niche sound which I dnt know even hw that sounds . You know those YouTube guys brag about. I didn’t reach that level of euphoria or goose bump . Maybe I expected too much, or maybe I still need to tweak a few things here and there. Could be both 😂 Note: I tried it with the ZD3 DAC the Fiio K11 and smsl m300 with xlr connection no loopholes :) boys we do xlr also right . If you’re reading this, you probably have one DAC in that league too. So boys… see you soon at the next audiophile or video files meet 😎🎶📽️ But one thing I can clearly say: One ZA3 in stereo is money well spent.

This is my second ZA3. Now I’ driving both in mono mode with a ZD3. Sounds good!