I've had a mark 525 for awhile now and really like it and now I got a used mark v and i think something is wrong. Tubes? Please give this quick demo a listen. It ch2 crunch with the gain all the way up. I don't think it's got the gain it's supposed to. Then I switch to ch3 mark iv. Then back to ch2 crunch. I just wonder if you guys think the tubes are bad. Or what cuz my mini mark kills it in every mode on every channel.
I put a pic of my settings to help. Thanks for any advice
Buy tubes, retube the amp. If the problem persists, contact your nearest Mesa dealer to get it checked out.
At the worst, you have spare tubes.