2. amps-preamps
  3. 147774-20202

Pass Labs cooling noise

 I have a recently purchased Pass Labs INT-60 that is making periodic clanking noise as it is cooling down on turn off.

My many previous non- Pass amps were always quite, Mac’s and  even my Parasound JC5.

Any ideas before reaching out to the dealer/company?

BTW the Pioneer S-1ex’s sound amazing with this setup with the OS Audio Directstream and Oppo 205.
128x128sandydennis11
lacaed
2 posts
 
FWIW, my x250.5 and my current XA60.8s made that kind of noise on cool down.  I talked to both the dealer and to Passlabs both said don’t worry.
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sandydennis11's avatar
sandydennis11 OP
64 posts
 
OK.   NOT worrying.
thx for input.
cal18
45 posts
 
Ever heard a house heating duct clang and bang mid winter when it’s belting out hot air and cooling. No different. Refractory lined cool systems are coming. Then again Class D is an efficient bulldozer. I can only afford late 90’s tech but it’s a pretty sweet ride. 
monoogan
55 posts
 
X350 does the same think. I assume it's because the heatsinks are structurally part of the chassis and cool at a different rate. 
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