OpAmp Comparison Results

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.

Blind Opamp Comparison

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…

LHZ-01 or LHZ-02?

How do I choose? What is the difference between LHZ-01 and LHZ-01? For most clients, the decision between the LHZ-01 and LHZ-02 centers around how comfortable they are soldering small wires to a circuit board. We recommend the LHZ-02 for users with limited soldering experience, or for installations where the…

HazLabs vs LHZ

This month I’ve received an authentic HazLabs preamp and a KHaz preamp to used for circuit tracing to compare to the currently-shipping LHZ-01 and LHZ-02 bass preamps. I’m happy to report that the LHZ is a component-level match to the original Hazlabs preamp, with the only exception being that we…

EMG BQC vs LHZ

This is a quick audio comparison of the direct output of a Spector Rebop DLX 5 with a PJ pickup set (EMG 40P5 and EMG 40J) after switching from an EMG BQC preamp to the LHZ-01 HazLabs clone. Bass audio is recorded directly into a MOTU M4, with both samples…