You have it cranked too hard.. plus its only normal feedback dude.. what guitar you playin through? remember also that the closer you are to the amp its going to 1. sound like crap and 2. feedback like crazy. Plus if you are using single coils as opposed to gibson like humbuckers get used to squeals and feedback. Plus Ive played through a peavey bandit and it has horacious tone….. their pa equipment chokes goats too…. UGH!!!