@wokeuptobose Past three tube amps both used and new, with new or NOS tubes -
Startup:
During initial burn in, with new tubes in my preamp and mono amps, they performed and sounded better after 45-60min of warmup. All burned in now, right at 30 minutes or so they seem to start sounding pretty good. Takes less time now, maybe 20-30 min, transformers too.
Shutdown:
If the tube amps and preamps are on, and I know I'm not going to sit back down and do any serious listening for the next 3-4 hours, I'll go ahead and just shut them off.
As others noted, prefer not to leave them unattended for too long.
Startup:
During initial burn in, with new tubes in my preamp and mono amps, they performed and sounded better after 45-60min of warmup. All burned in now, right at 30 minutes or so they seem to start sounding pretty good. Takes less time now, maybe 20-30 min, transformers too.
Shutdown:
If the tube amps and preamps are on, and I know I'm not going to sit back down and do any serious listening for the next 3-4 hours, I'll go ahead and just shut them off.
As others noted, prefer not to leave them unattended for too long.