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Pass Labs XA-25 on all the time?

My Pass Labs XA-25 stays on most of the day. It does sound its best about an hour after it turns on. I'm thinking of leaving it on all the time. Does this help or hurt the amplifier in some way. I  have a PS Stellar S300 in another system that stays on all of the time. It's a class D amp so it uses very little power at idle . PS recommends leaving it on. It sounds better to me that way. Other than the power consumption, is there a downside to leaving the Pass on all the time? Thanks Larry
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d2girls
1,029 posts
 
I always left my XA30.5 on! So yeah, keep it on.
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dweller
3,795 posts
 
Since the "A" in "XA" means "Class-A", do the math to determine how much A/C will be wasted leaving it on constantly. You may be unacquainted with how a Class-A amp works and get a surprise on your next electric bill.
bluorion
479 posts
 
I have a Bel Canto REF500S amp---should I keep in on 24/7 as well?
terry9
2,354 posts
 
The only reason to turn off a SS amp is heat. If it gets too hot, the big caps will age prematurely. I use a separate power supply in another room, so it's not a problem. I use the Class A amps as auxiliary space heaters, so it's cost neutral.
kcpellethead
137 posts
 
There is a video of Nelson Pass saying to turn off his amps when not in use.  I believe it's the video Steve Guttenburg shot where Nelson gives a tour of his listening room, but it might be a different one.
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