mute

Hi ! First excuse my poor english, I'll do my best :) Here is my problem. I have a sweet 15.2 amp for a month, but now the Mute LED is always red (Yeah, I pushed the button, but without any result, it's still red even if the mute function is removed). So, no more sound... First I thought...

How to disable Pro IV bass amp mute switch which randomly turns on and can only then be turned off by cutting the power .

Hi, I've just purchased 2nd hand ProTube IV (sounds Great!) but the mute button turns itself on intermittedly and won't turn off unless I turn the actual head off, then it seems to reset itself. I had someone look at it but of course it wouldn't do it when we wanted it too. I am wondering...

HELP!!! Two weeks ago at a local gig the power tripped out and the fuse blew in the mains lead connected to my ProTube IX head. When I replaced the fuse and tried to turn the head back on again, it powered on as usual but the mute switch light is constantly on regardless of the position of...