Stone James 2020 Spector Forte with Ampeg
Stone James (bassist/producer at Hollis Dorian) discusses his 2024 Spector Forte upgraded with an LHZ preamp.
Todd Tawdre Hamby – I’m Broken
This is a Spector Euro LX Doug Wimbish customized with the LHZ preamp.
LHZ-04 HazLabs Preamp Clone
BUY NOW IN THE LHZ SHOP: LHZ-04 Preamp (Standard Pots)BUY NOW IN THE LHZ SHOP: LHZ-04 Preamp (Concentric Pots) The LHZ-04 Bass Guitar Preamp is a faithful re-creation of the circuit used in late 80’s and early 90’s HazLabs bass preamps to create that classic and elusive Spector® tone. If you have a 20-year-old Spector® NS2A, Euro, or ReBop and are ready to upgrade the stock EMG pickups and TonePump preamp to get that signature NS2 sound, all you need…
New for 2025: The LHZ-04 Preamp
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.
LBCA-02 Active Blend Control
BUY NOW IN THE LHZ SHOP: LBCA-02 Active Blend Control The LBCA-02 is an Active Balance Control designed to be used with Active pickups (25K version) or Passive pickups (100k version) and features modular DuPont-compatible cable connectors for easy installation. The LBCA-02 works well with both the classic and X-series pickups from EMG™ as well as active or passive pickups from most other manufacturers. The benefit of using an Active Balance Control over a traditional passive balance potentiometer is the…
EMG plug & play install featuring the LHZ bass preamp!
This video walkthru from 3 Random Monkeys takes us through the process of solderless installation of an LHZ preamp. Here’s the wiring diagram for an Active pickup setup using dual modular EMG volume pots used for the install.
LHZ Preamp Installation into American Fender Jazz Deluxe 5 String
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 be bypassed for those times where I want just the un-EQ’d pickup outputs.
Spector® Bass Setup Procedures
The majority of these notes were written by Jim Eppard who is responsible for setting up USA Spector® basses in the NY workshop.
Jim’s notes were modified slightly to accommodate my own setup preferences and formatted to make it easier to read. I asked Jim if was OK to share this revised copy, and he said: “Share away! Spread the knowledge around!”
LHZ History
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 I’d never considered selling them until I kept getting ask to sell “just one” to someone. It’s been a journey of learning all around. Not just in how to set…
Gorilla Repair Shop: LHZ Installation in Spector® Euro
This video is created by, and property of, the Gorilla Repair Shop but we think it is a perfect and concise overview of the process of removing the stock TonePump from a Spector® Euro and installing the LHZ-03 preamp.