Jazz Bass guitar wiring diagram with one volume, one tone and a balance/blend control. This diagram shows how to eliminate the dual volume feature on traditional Jazz basses and replace it with a single master volume and a balance pot allowing easier control of the overall volume and the balance of the neck and bridge pickups. Ready to start? Don't forget the Wire, Solder, Shielding & Supplies. Copyright© GuitarElectronics.com LLC. Unauthorized use prohibited. Click diagram to view full size.