The volume on my Carvin V3 has been getting higher and lower as i play. By this i mean that while i play it gets louder and quieter, louder and quieter...

Its not my Guitars or cables b/c I tried them all and the amp still messed up. I thought maybe it was the tubes but idk. Ive only had it for like 4 months.

Any help would be appreciated. Thanks.
Probably the tubes.. like ^^ said, did you get this used, or was it sitting in a shop for ages?
I bought it strieght from the factory. I believe Carvin amps are built when ordered.

But oh well. I guess I'll just call the company.
Is the Vibrato on? Just kidding. Yes, call the company. Sorry to hear it's having issues.