Everyone has an opinion. FWIW, I use a Classe Audio DR-15 with an MFA Magus C tube preamp through Sonus Faber Electa Amator speakers. The combination sounds great to me. I wish I had bought that audio rack from "stereo5", I would really like to have a second DR-15. I just remembered that there were two 15’s, the DR-15 was while David Reich was with Classe. The designation changed after he left to just 15. I believe the designer who replaced him was Glen Grue. I called him about phono resistors in my Classe Audio DR-6 preamp. As I recall, he was very helpful.
Classe 15 vs Classe CA200
Between the Classe 15 and the Classe CA200 power amplifiers, which would be a better match for a system with a tube preamp. I like and listen to all types of music. Please note that the difference in power (175 WPC vs 200 WPC) is not important. Your comments and recommendations are greatly appreciated.