Mark III volume drops

[Goldtop]

What could cause the volume drop on my Mark 3? I have tried new power tubes but, it didn't help. Could it be caused from a bad preamp tube?

 

[boogiemon]

capacitor perhaps?

 

[Goldtop]

Is this a expensive repair?

 

[boogiemon]

Is this a expensive repair?

I had my MIII completely gone over at the factory for $200: this included a cap job among other things.

 

[Goldtop]

I sent my back to Mesa about 4 years ago and Mike put the r2 volume control on the back and did the mark III+ mods to it. Great amp.

 

[boogiemon]

I sent my back to Mesa about 4 years ago and Mike put the r2 volume control on the back and did the mark III+ mods to it. Great amp.

what are the "III+" mods all about? I can't imagine my stock III sounding much better...

 

[primeholy]

Clean the effects loop first.

 

[Goldtop]

Thanks for the tip. I cleaned the effects send and return jacks but, it ended up being my volume pot on my Les Paul. Thumbs up to the guys at Tube Depot for picking out a great sounding set of Winged C SED 6L6 and EL34s. These guys use Boogie Amps and know there stuff.