MESA Rack Quad Preamp Volume loss

Talk about tubes and their effect on your tone

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Baretta
Bottle Rocket
Posts: 1
Joined: Sat Jul 25, 2015 7:06 am

MESA Rack Quad Preamp Volume loss

Post by Baretta » Sat Jul 25, 2015 7:19 am

Hi there - recently purchased this preamp and notice the volume cuts out about 15 to 30 minutes in. Openned the unit up and staired at the tubes. The problem appears to be on both channels so wondering if it could be a drive tube? Anyone experienced this?

Many thanks

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