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Hello all I want to start by saying I love these amps..I own two RM50 amps..and have had the exact same problem with both.The problem is the actual board that holds the power tubes gets fried. My amp guy found a replacement for one, and modded it so the problem would not happen again. This was...

First I would like to thank you for the help Okay..here is what I found, it is not the fan. The capacitor on the input jack stopped the noise except for when using the mr. scary module. I was so busy hearing the squeal that I was hearing it in my sleep apparently. Now here is an odd thing I...

Julia It is hard to describe it other than an electronic whirring sound coming through the speakers. Does the fan on these transfer noise to the system sometimes. It is a constant sound tho. would it hurt the unit to disconnect the fan for a bit to see if that is the problem. Thanks Lee

Hello all I have a small issue that maybe someone here can help with. I have an RM50, blackface module, mr scary, and ultra xl. The amp sounds great. But there is this crazy electronic whirring noise that is present when I turn the guitar volume all the way down, and as I gradually turn the...