Hello everyone! So this week I picked up a Revision G Dual Rectifier for an amazing deal. The owner was upfront and told me that the amp was having issues and would need to be looked. Once I got it home I noticed a few things. The channel style switch on the back has no impact on the Red or Orange channels and when the loop is engaged with nothing plugged into it the send level works as a master volume. Any help on figure out what might be causing these issues would be great. Thank you
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