Fosi ZA3 - yay or nay?

Short opinion/review of the Fosi ZA3 amplifier! Enjoy :)

[dannycosby]

I have began researching these small form factor class D amps and it's nice to hear real world reviews. Many videos just give the positive aspects of them, but I keep thinking there are probably a lot of downsides to them, let alone how they hold up long term. The price of these amps are not just pocket change to someone like me, they need to not only sound good but to last long enough to get a ROI. I see quite a few for sale on eBay and that alone raises questions. Thanks for posting this video

[JoseFerreira-zbwh]

It seems like you're really used to Marantz traditional sound signature which is definitely warmer sounding. Remember, this is class d amplifier, so it will tend to sound dryer/ more neutral than the marantz. I've tried some of these 3255 amps and they're good but synergy is a very important factor. These are not on of those that sound good with any speakers you pair them with. Haven't tried those monitor audio's but the more recent monitor models they're released seem to be more focused in the upper registers so they may not pair well with that amp.

[bizmofunyuns]

I swapped the op amps in mine for sparkos and that thing rips, handles my front two channels sounds amazing

[larrygaines]

Tpa3255 and in mono @ 48vdc whole different animal.

[michaelwright]

These amps are great for say a bedroom setup or in the garage. I have three different brands/models, and these TI amp chips all sound the same to my ear. They are Class D, two dimensional and sterile.