Whether it’s and in-depth technical analysis, preamp comparison, tech tip, review, or just some inspiration that’s worth sharing, here it is!
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.
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.
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.
Today we take a look at the HL-1 HAZard LAMPS Pedal, which is designed to give you that classic “Haz” tone on the floor. This pedal was designed for players using Spector® basses (with EQ dimed) who need to use a passive bass for a few songs. The HL-1 allows a passive bass to have the same EQ, dynamic feel, and signature high-frequency overtones as a USA Spector® bass. No, it will not make a Fender® sound like a Spector®!…
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 of every experience level. Truly, there is no such thing as a dumb question! I enjoy sharing what I know and helping others on their tone journey, so if you…
One of the more common questions we receive are about how to solder the barrel jack. This can feel like a daunting task to players who’ve never soldered before or have limited electronics experience. Thankfully, it is not hard to do! This video walks through a couple concepts to make your barrel jack soldering simple:
In this video we take a look at two of the most common reasons for rapid battery drain in a bass with an LHZ preamp. A 9 volt battery should last 6-8 months of normal use. However, certain wiring issues can cause an active preamp and pickups to always be powered on and reduced battery life to only a few weeks. While this video specifies the LHZ preamp, the same issues and resolutions apply to almost all active preamps that…
In this video we’ll reveal the opamps that were used in the Blind Opamp Comparison video. This is a longish video, but it goes into a lot of the psychoacoustic challenges that make listening tests difficult (if not impossible) when the difference between the samples is small.
LHZ Preamps have transitioned from the vintage LF442CN opamps to new chips. The LF442CN has been out of production for many years, and Hazlabs have moved to modern surface-mount op-amps a few years ago, so it’s our time to turn the page as well! This video is a blind comparison between 3 opamps: the original LF442CN and two of the new opamps that have been selected as being sonically indistinguishable from the original. Although we are calling this a “blind”…
In this video we answer the question “What happens to my active preamp when my battery dies?” This is a common questions from players buying a bass with active electronics for the first time. The good news is this: your preamp will NOT just die in mid performance! Instead, failing batteries just slowly fade out over many months so you have plenty of advance notice.
