ADA Preamps > MP-2

mp2 output problems

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gb:
I love my mp2 but recently this has been happening sounds like its farting out the speakers with no drive..on xlean it sounds worse.. I narrowed it to the mp2. Ive tried different tubes leads etc.. and its something in the mp2. If I leave it on long enough it slowly comes good. If I turn it off and on a few times it comes good.  Now every time first turns on it has this issue..

Dont mind my crap playing while holding the cam.. just to show what its doing

Hope its fixable..im sooo bummed

https://www.youtube.com/watch?v=dmKWCXhgRrc&feature=youtube_gdata_player

Heres is when it came good.. same patch

https://www.youtube.com/watch?v=i96CHwCjGTs&feature=youtube_gdata_player

MarshallJMP:
Is the compressor on in this preset?

gb:

--- Quote from: MarshallJMP on April 11, 2014, 04:12:09 AM ---Is the compressor on in this preset?

--- End quote ---

Compressor is set to OUT but makes no difference if I change it. This issue is on alll presets.

gb:
Ok I noticed when I change the wah filter from OUT to IN on PEDAL it came alive instantly.  I change it back to OUT it has that problem again. . After a few times of changing it it works both ways.

Also I dont have any midi or effects loops plugged in.. just guitar into mp2 and output to poweramp.
Is that any clue?

MarshallJMP:
Well the compressor and wah can give some problems,usually it's the compressor.Now in your case it seems to be a switching problem.The switching is done with fets controlled by U202 (TC9164).What you could try is gently get the U202 out (it's in a socket) and put it back,could be a bad contact.

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