2. misc-audio
  3. 172838-118372

Stacking pass labs power units??

Currently have an xp-22 preamp with separate power supply.  It currently sits on top of the supply. Getting the xp-27 this week which also has a separate power supply.  I'm wondering,  can the power supplies be stacked on one another while the preamp and phono stage are stacked. I don't have much space, so something has to be stacked. Thoughts? 

cabalaska
testpilot
949 posts
 

Why not just try it see for yourself?

cabalaska OP
21 posts
 

True.  I will try it, but wanted other thoughts and will see what pass says.

gdnrbob
4,447 posts
 

Will you be running both preamps at the same time?

If not, then I see no problem.

B

cabalaska OP
21 posts
 

The folks at Pass said it was no problem to stack the power supply chassis together and then separately stack the two preamps. So I did this, but found that the two preamps stacked together produces more heat than I'm comfortable with. (not that they were too hot to touch, so I'm not suggesting there was overheating going on, but they were in a middle shelf of a rack and therefore, even though they were "breathing" there was still a roof over their head and warmer than my liking) So they are stacked back on their respective power supplies. I just don't have any extra space to put four separate chassis. Pass gear is designed to stay on all the time and therefore they would be running at the same time. 

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