This video is a walk-thru of the process of upgrading a American Fender Jazz Deluxe 5 String bass from the EMG BTS to the LHZ-03 preamp. This is NOT a typical installation because it as a custom modification to use a DPDT bypass switch. This allows the LHZ preamp to…
I thought I’d take a few minutes to go through the progression of updates to the LHZ preamp since it’s inception in 2022. I laughingly tell people that I’ve “accidently started a business.” It’s framed as a joke, but the reality is exactly that: this was a personal project and…
In this we will go through a few of the most common questions regarding the LHZ-03 bass preamp: What’s in the box? Will it fit in my bass? How do I take the liner off the 3M VHB tape? One of the joys of this project is talking to players…
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…
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
The LHZ preamp does exactly what the original 80’s HazLabs did: the EQ was specifically tuned for US Spector® basses. The circuit design is unique in that the initial stage greatly boosts the treble before the EQ stage, and then that boost is removed. This causes the preamp to generate…
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…
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…
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.
We had the opportunity to compare the circuitry, components, EQ response, and audio artifacts between our LHZ-01 and LHZ-02 preamps and a vintage HazLabs preamp (serial number 2029). We also had a KHaz clone and ran the same comparisons as well. THE RESULTS Testing Process HazLabsS/N 2029 KHaz Circuit Wiring…
