Bass Player Readers' Choice Award for Best Preamp: Audere JZ3              Bass Player Editors' Award
Introducing Jazz Hum and Noise Cancelling Preamps - keep the Single Coil Tone and Touch Response - lose the Hum and Noise              BP Magazine Review
ZMode Switch

Output Jack drawing

Pro Z Documents

Installation Instructions.

Programming Instructions for a Single Channel Pro Z preamp
Programming Instructions for a Dual Channel Pro Z preamp

Mechanical Drawings:

A dimensioned drawing of the potentiometers, switches, output jacks and LED.
Mechanical Drawings