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 have a 2 preamp and 3 dual transfo amp riving Vandersteens and have been happy going on 25 years. These pieces ere made in France by YBA himself and I stopped looking after I bought them as demos. If you like music and are not as concerned about equipment this is your kit.
Hello I own a YBA 600 poweramp and I must say its the finest sounding poweramp I have owned.My preamp is a audible illusions m3 very nice synergey.
I heard a few of their pieces yba1 and top stereo passion. I can sum up the sound by saying it's dry. Opposite of this gear would be Hegel, Dartzeel & CH Precision.

On the chance that anyone is still watching this thread, I wonder if someone has some advice? I have a Passion Integre, circa 2002-2003, and have been thinking about connecting a preamp via the HT bypass on the Integre. At that time in the Passion series, did YBA make a separate amp and preamp?