The LHZ-04 preamp is a physical re-design of our current LHZ-03 model. It is the same circuit, same components, and same sound. Improvements for 2025 were driven by a significant number of clients using the LHZ in non-Spector basses with very confined control cavities. With smaller board dimensions and extremely low vertical clearance requirements, the LHZ-04 is THE choice for challenging installations.
This video walks you though the differences between the LHZ versions.
LHZ-03 VS LHZ-04 COMPARISON
LHZ-03 | LHZ-04 | |
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Surface Mount Components | 80% | 100% |
Length | 48mm (1-7/8″) | 41mm (1-5/8″) |
Width | 29mm (1-1/8″) | 25.4mm (1″) |
Vertical Clearance | 25.4mm (1″) | 9mm (3/8″) |
Output Pins | Vertical | Horizontal |
PCB Color | Blue | Red |