I just purchased their PASSION 650 stereo amp. Some of the sweetest solid-state Watts I have heard; this is after letting go of my BEL CANTO 40 SET AMP.  Given how wonderful YBA products are I am wondering why I’ve heard of them only once or twice in the last dozen years or so, and I think both times have been me. Anyone out there have first hand listening experience with YBA?
I don't know about others in the range but my YBA-WD202 has CEU after the serial no. externally and internally it's as good as if it were made by Pass Labs.

Cheers George 
MADE IN USA is no guarantee; conversely made in China? It’s all about the mother company and monitoring quality
Jim, the sound of my amp delivers the goods big time, but should I be concerned about China? What is YBA doing to  monitor quality assurance, parts, construction etc. An inquiring mind would like to know. Thanks in advance