Does anyone know about the pre amp in my Warwick Vampyre Rockbass ? I read somewhere they started putting German built pre amps in them, or are they only for the real deal Vampyres made in Germany. My Vampyre has the 1 piece bridge, not the newer 2 piece bridge. I took the pre amp module out and it only says '2 band eq', nothing about where it is from. Being a Rockbass do you think changing the pre amp can only be a positive move ? I was thinking of going for the Glockenklang 2 band eq. As for the wiring I have it almost figured out, I guess that small white wire going into the bottom pot (trebble) is the earth right ? Where does the earth connect to on a bass ?