Okay. I have a Marshall DFX 100w
Combo amp. When I turn it on, it always makes a strange noise for awhile which sounds like an old man whining. It does this in a few little bursts then stops and wont do it again while I'm playing. However this happens everytime I turn the amp on. I know nothing about the mechanical side of it so I'm scared to fiddle. I'm sure someone here must know what the problem is. You're all such knowledgable folk!
