For my Pass X250.5 I was told to run it 24 hours a day for 4 days, then for the next 4 days to run it 16 hours and turn it off (not standby) for 8 hours. This was supposed to break it in 90% - 95%.
Amp burn-in..Best technique
I will soon be getting my new Mcintosh MC591's. I am curious,......does it matter how loud you play? If I run a CD on continuous repeat,...does it matter if I turn it way down? Or does that not offer enough resistance/load to drive to have a "break-in" effect. My wife would not be happy if I had my system playing at high levels all day.