No sneering Please

I had a bit of an awakening recently. My office setup consists of Klipsch RP600M out in the room and Martin Logan 15i on the desktop. I have a Nakamichi TA-2A receiver (the Nelson Pass STASIS model) powering both. On a whim, I replaced the Nak with the Fosi V3 (with 4562 opamps) and was immediately taken aback by the lack of transparency, high frequency extension, and bass control exhibited by the Fosi. It also sounded like the music was much further away with less immediacy. I also tried the Aiyima A07 and it was better, but still nowhere near as good as the Nak.  Prior to this I was listening to the A07, A08 and the Fosi V3 in both my office setup and main system and thinking they were great sounding amps, so I was very surprised by what I heard.

Ho Ho Ho - you guys till believe in Santa Claus, I mean reviews!
 Maybe check to see if the reviewer owns the product they are recommending.

I have a Fosi V3 I got after returning an Aiyima 07 both used in my workshop system with restored IMF Super Compact 3-ways.

Source is WiiM Pro analog out.  I also have  a Van Alstine Super PAS 3 and new build Dyna ST35 for comparison. I find the Fosi to be crisp, transparent, and enjoyable. I do slightly prefer the tube gear, but when I need space on my bench, it goes in the rack and I am happy with the tiny stack. I also use a Bellari PA550 as preamp in that setup, for phono. 

Very interesting review.  Not sure why @bigkidz discounts the use of reviews that come from credible sources.  I for one don't have the opportunity to run out and buy, or demo everything that comes along so the reviewer plays an important role in the chain of information.  The most disturbing thing I find in this review is the concept that a $1500 amp could possibly replace my $15,000 amps (times 2 for mono blocks).  I suspect there are many like me who don't want to believe the day is coming when our very expensive amps will be boat anchors.  My son-in-law is of the generation that can't believe the money I have tied up in traditional SS amp.  He's Class D all the way.  I'll keep my head in the sand as long as possible.  😆  

I believe only many reviews not one or two, but many , reading between line ...