My first bass was a Hagstrum (i'm not sure about the spelling) It was white with 2 single coil pickups that could be switched on and off with 3 or 4 little slider switches. I replaced the neck pickup with a Gibson type of pickup I got off a Kalamazu bass I bought in a pawn shop. The combination of thick toned neck pickup with the thin toned bridge pickup worked out better than you might expect. Allas it was stolen one night along with Rocko's alto sax and a bunch of microphones and other stuff. Anybody out their still got a Hagstrum?