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Debate: Class D amps need 48 hours of warmup

Have you listened to your amps cold? Warm? Both ways?  What was your experience? I’ll hold my own observations to not bias the replies. 

Did you leave them off while on vacation and then come back to find they sounded hard and strident? 

erik_squires
erik_squires OP
17,585 posts
 

@rar1 - Does it go into "standby" where the Class D part is still on, or no? 

soix
11,256 posts
 

48 hours?!?  Seems excessive, and I’d think playing music for a half hour or so would be sufficient (based on nothing BTW), but maybe @atmasphere can weigh in from an expert’s standpoint. 

avanti1960
1,745 posts
 

Who would own an amplifier that didn't sound its best until being powered on for two full days?  

My ears tell me that they take about as long as Class A-B amps to "worm up" / sound their best  BUT- sound worse than class A-B until they are warmed up.  

erik_squires OP
17,585 posts
 

Who would own an amplifier that didn't sound its best until being powered on for two full days?  

OK, guys, I know this is sounds like a weird question, but lets’ not attack the replies, or even the author, until we’ve seen informed replies.  This kind of judgementalism is really not what I was looking for when I posted. 

kofibaffour
718 posts
 

my Purifi 1ET9040BA monoblocks from Apollon have never needed warm up. They deliver as expected with my speakers at whatever time on. Fresh on or 1 hour into playback. And no leaving it off has never led to strident audio. If your amp does that, that is a faulty solid state amp

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