Maybe I'm delusional or have crappy, thermally unstable amps, too, but my CAD211fes and 500MBs sound better after about 30-45 minutes of warmup. Not that they are "bad" cold, just seem to smooth out a little bit. Seems that way whether I stay in the room or turn on, leave, and come back after a short while.
Is it the beer or do speakers/electronics really need some extended warm-up period?
To me, one of life's best times are a cold beer and listening to good music. I have noticed that the longer the listening/drinking session, the better the sound. Is it the beer or do the electronics/mechanical components mellow out after some burn-in period? Thought about listening with no beer, but that's not happening.