Fosi Audio BT20A Pro amplifier review

This is a short review of Fosi Audio BT20A Pro TPA3255 based amplifier. It was supposed to be revealed yesterday, but I got it from Ali 2 weeks ago. It had been burned-in for 3,5 day and then I&spent some time doing critical listening. I&replaced stock NE5532 with set of double OPA627 that I had in my stash. (NE5532 is your base opamp, but you can do so much better with others). Randy (CheapAudioMan) have done also a review of this one, mind though that you need two pieces of double channel opamps for rolling - he talks about 2 pieces of single channel opamps but thats a mistake. Anyway, this one stays with me, for the moment this is the best cheap ChiFi that I&heard (mind though that this is more than 3-4x cheaper than f.e. SMSL AO200).