china

Around 30 bucks , great quality of components and board (magnetic shielded output chokes , coupled i believe , and 6 x 2200uf 35v caps for dc in) BB 2604 Op Amps on Sockets Aliexpress PS: Dynamic range is scary , (compared to my 90's yamaha discrete AB) testing on RT 8 Polks so far...details...

[Skip to the last three paragraphs if you want to skip my related story] As some of you figured out from my first post here as ASR about my history with tube gear, I am a hopeless audio gear-changer who started this crazy hobby in 1958. Now I am a 76 y/o American expat who lives on a limited...