I have an older Washburn bass that I have changed the pickup in. It's a P-style split pickup, and the stocker was really weak, which seems to be a common Washburn feature . I got the "new" pickup from the same guy I got the bass from, and he doesn't know what it is either. It has exposed polepieces, and two magnets running along the bottom of the polepieces. The whole thing, including the covers, is sealed in some sort of brown resin-type stuff. It seems to be a nice pickup, with a reasonably hot, fat sound, and is nice and quiet. Doesn't appear to be DiMarzio, Duncan, EMG, Bartolini, or Fender.