AUDIX 35102 module weird ramp up?

[mkiijam]

I have this racked Audix module that appears to slowly ramp up when powered on. The power supply seems fine, as I have a steady +24V at the power pin on the module, but the audio appears plenty loud, then dies off by about 90% then dies off to 100% then slowly comes back up, first with lots of harmonic distortion (headroom issue I'm guessing) then finally it works normal. This all happens in about 60 seconds. It is almost like it is some slow ramp on feature.

 

[mjrippe]

Sounds like a cap dying on the power rails.