TonePump vs LHZ Preamp Comparison

This is an in-depth technical analysis and audio comparison of the TonePump preamp and the LHZ Preamp intended to provide objective data to help players understand the differences in tone and feel that they experience when switching between these two preamps.

TonePump Wiring Diagram

We’ve recently acquired a 2006 Spector ReBop 5 DLX in original condition, complete with EMG HZ pickups and TonePump, so thought we’d document the wiring and create a diagram to help others who are diagnosing issues or replacing preamps.