Class D comment. Happy Thanksgiving everyone. Driving my U3’s (Toroids,PX panels), my Wolcott Audio EL34 tubed Monoblocks were far superior to previous amps (big Bryston’s, big Cary). Excellent bass control, open and wide/deep soundstage, extended and airy highs. They never sounded strained, and I have a huge room (42×26). U3’s 12’ apart, 10’ from front wall, 7’ from side walls. Seating 14’ from speakers at 75-80 dB.
But, after auditioning PS Audio’s new Class D M1200 hybrid Monoblocks, I switched. Cleaner, punchier, more inner detail, better balanced soundstage, more effortless, more engaging… I could go on. Classical music is noticeably more engaging.