http://www.peavey.com/products/browse.cfm/action/detail/item/116913/3120(TM)%20Head.cfm if you look at the manual, the block diagram is the same as the XXX, down to the bottom, body and hair EQs that have the standard bass mid treble on the 3120. if you put 6l6s in this would it be the same amp?

"The mind is its own place, and in itself

Can make a Heav'n of Hell, a Hell of Heav'n"

- John Milton, Paradise Lost