Has anyone ever used/owned a peavey xxx head? I've got a good friend of mine selling one in mint condition. I've played around on it some at low volume but I plan to jam it more but I was just curious if any of you guys have any comments on them. I don't know much good or bad about them except it does have a killer tone. I'm considering it for a backup head even though I really wanted to find an rm50b. The xxx seems pretty quality made and has some sounds I really like.