Well friend, I think I got it figured out now. In regards to your query, calling Peavey is really a last resort for me. For one thing, Talkbass is really a great place for getting information and sharing information and finding new friends. For another, I'm treated like an incompetent scumbag every time I call Peavey. Very rude to me the last two times I called with questions. One person told me if I don't know the guts of my amp, why did I buy it? So no, asking Peavey anything is a very last resort. I think the VB2 and 3 are excellent amps as well as their older USA cabinets as I have, but if i could, I'd sell these 810's and buy Ampeg, Fender, Eden, anything else but Peavey.