2. amps-preamps
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Pass Labs 350.5 or 600.5 owners--breakin time.....

I just bought a pair of Pass Labs 600.5 monoblocks which now have about 25 hours playing time on them. They are starting to finally open up in the upper registers and in detail. Still kind of veiled though... They sound better after 4+ hours of play. Could anyone comment on the total breakin time and what they may sound like after say 100 hours? Thanks! Stan
talon4

Showing 1 response by audiofeil

audiofeil
4,011 posts
 
My experience is a little different. I've found that most Pass amps level out after about 100 hours of use once the caps are fully broken in. The XA series take a little longer perhaps 150 hours total. I've not noticed much change after that. Do not be shy about pushing them if matrimonial harmony permits.

I recommend leaving the amps powered up 24/7 but in standby mode when not listening. Exceptions are vacations, thunderstorms, visiting nosey children, etc.

Disclaimer, I sell Pass products.
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