LHZ Preamps

Vintage Bass Preamps

LHZ Preamps

Vintage Bass Preamps

Spector

Switchcraft Jack

Looking to swap out your barrel jack for a new unit? Here’s the part numbers you want!

Or, save yourself the soldering and order a prewired Switchcraft from the LHZ Shop.

Play It Forward: 100th unit sold!

We just hit a milestone last week: the 100th LHZ preamp was built! To celebrate, we will select one of our existing customers to receive S/N# 100 completely free of charge to upgrade their arsenal, or choose to have it shipped to anyone of their choosing. The winner will be notified via the store account used to purchase their preamp, TalkBass forum account, or email if they have been in direct contact. We’ve chosen to do this as a quiet…

Bass Comparison with the LHZ HazLabs preamp clone

I bought the LHZ-02 HazLabs preamp clone for my Spector NS-2A which I purchased in the 1990’s without the original pickups and HazLabs preamp. It had Seymour Duncan Basslines PJ pickups and preamp installed instead.

I’m loving this in my 5 LX and will be getting a second one for the intended NS-2A.

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 the drawings. A significant change in this version is the removal of the “Legacy” diagrams. All clients are using their existing volume (or blend & volume) pots and wiring the…

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 revised to address a potential battery drain issue noted on certain configurations in control cavities using copper foil lining. In rare cases, the foil lining would conduct the battery ground…

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.