This may be a really obvious problem to solve but my guitar keeps squealing recently when i play it. I hold both hands on the strings when im not playing but it still does it. Is this a problem with the gain or with my guitar?
it could actualli be a problem with your input (the part u put ur guitar lead into, in the guitar) i had an old jackson and the input was pretty shotty, open up with back and chek out the wires that lead into the input,
it can alsop be the room you're in, i remember being in a big hall with my guitar and amp, and my friend had his, and they were both squealing even on the clean channel.