So I just bought a new head, the GK 2001rb and a GK NEO 410 cab. It has all been working well however recently ive been playing a lot louder in more practices/gigs and it has started to buzz/squeal the louder it gets turned up. When I play on the distorted channel it isnt too bad but still hearable however when I am on the clean channel it doesnt really matter how loud I play it is the loudest thing I can hear. So hopefully some one here can help me I'm not sure if its my cables, how they are plugged in or an issue with the actual head/cab. I have tried using different basses and cables and nothing has changed. Thanks!