HL-1 HAZard LAMPS Manual

The HL-1 HAZard LAMPS pedal brings the unique tonal voice of the LHZ preamp into a pedal format. This pedal is intended for players with passive basses that want to give it the same punch and power as a USA Spector bass with an internal Hazlabs preamp. While it is…

LHZ-03 Installation Diagram

View and Download the LHZ-03 Installation Manual right here! This is a living document that is constantly being updated as we create new installation diagrams for clients that have unique wiring challenges. Don’t see the diagram you need? Let us know! CURRENT VERSION PREVIOUS VERSIONS

LHZ-02 Installation Diagram

View and Download the LHZ-02 Installation Manual right here! This is a living document that is constantly being updated as we create new installation diagrams for clients that have unique wiring challenges. Don’t see the diagram you need? Let us know! UPDATE 2/10/2024: We’ve updated the installation manual to reorganize…

LHZ-02 Installation Diagram (Green Rev 1.6)

View and download a PDF copy of the Installation Manual for the LHZ-02 HazLabs Clone preamp. The LHZ-02 features solderless DuPoint style pin headers that compatible with EMG connectors. This manual is specific for users with the GREEN preamp marked as Rev 1.6. UPDATE NOTES The output jack wiring was…

LHZ-02 Installation Diagram (Blue Rev 1.7g)

View and download a PDF copy of the Installation Manual for the LHZ-02 HazLabs Clone preamp. The LHZ-02 features solderless DuPoint style pin headers that compatible with EMG connectors. This manual is specific for users with the BLUE preamp marked as Rev 1.7g.

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.

Active Blend Circuit Eliminates Insertion Loss

Today we are happy to share a schematic for a blend pot conversion that will eliminate the insertion loss effect that creates a volume dip at the center of rotation of a blend potentiometer when using active EMG pickups. There is significant conflicting information regarding blend potentiometer sizing and wiring….