I have an '86 Peavey Foundation S (P and J config) that I bought new. About a month after I picked it up I bought a Dimarzio active setup, pups and preamp (no idea what model anymore), for it. Played it for a number of years before I "retired". I recently started playing bass again and was using this as my backup. Everything was fine but now the preamp has died. My question is, can I just replace the preamp or do I need to replace the Pups too? I know most preamps run on 9 volts but this Dimarzio system runs on a couple of watch batteries at I think 6 volts. If I need to replace the pups too thats alright, Just don't want to put a new preamp in that's not compatable and burn it up and be back at square one.