I listened to the CA150 and was impressed. The Sonographe SA250 is a good amp for the price, and is one tranparent amp. But the Classe is a high end amp and I like the way it presented instruments and voices. Partnered with my Cary tube preamp with Telefunken 6DJ8, Diana Krall sung in the room for me. I was bowled over. I finally traded in the CJ for the Classe. I am thinking it will be awesome with an Esotec-tweeter equipped Dynaudio, like the Focus 110. BTW, my transpor/ DAC combo is also Twin Telefunken tube equipped, too.
Thanks for your input.