ADA Depot - A Forum To Support Users of ADA Amplification Gear

ADA Preamps => MP-2 => Topic started by: Rawk777 on March 02, 2017, 08:57:27 PM

Title: Pop sound after 1:30 minute
Post by: Rawk777 on March 02, 2017, 08:57:27 PM
My MP2 started to make a pop sound followed by a volume drop and back to normal again. The pop seem to always happen about 1.5 min after the unit is turned on.

Any clue on what is going on?
Title: Re: Pop sound after 1:30 minute
Post by: Iperfungus on March 03, 2017, 12:18:00 AM
Did you swap the tubes already?

If no, swap both with new ones.
Title: Re: Pop sound after 1:30 minute
Post by: Rawk777 on March 03, 2017, 04:36:14 AM
Did you swap the tubes already?

If no, swap both with new ones.

New tubes did not fix the problem.
Title: Re: Pop sound after 1:30 minute
Post by: rnolan on March 05, 2017, 01:58:50 AM
Seems something is not working until it's heated up/stabalised, but what  :dunno: , a pop sounds like a capacitor that needs changing, again which one  :dunno: , although doing them all is a good idea if you are up for it, at least the MP2 noise mod (21 caps).