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Azimuth Dynamic Overdrive

Based On
Hermida® Zendrive
Effect Type
Build Difficulty
Project Summary
The first overdrive that attempted to replicate the tone of the legendary Dumble amplifiers. A favorite of blues guitarists, and with its low parts count, a great project for beginners.

Complete Kit

What's included?
PCB, finished enclosure, hardware,
and all electronic components.


In stock

Azimuth Dynamic Overdrive printed circuit board

PCB Only

What's included?
Just the PCB. Build instructions and parts list can be viewed or downloaded from this page.


In stock

Project overview

The Azimuth Dynamic Overdrive is a recreation of the Hermida Zendrive, first released in 2004 and taken over by Lovepedal in 2013. The circuit has changed very little since its inception, with the only major change being the op-amp which happened after Lovepedal took over.

The Zendrive can be seen as a stripped-down Tube Screamer. It starts with a standard Tube Screamer-style clipping section, followed by a variable R-C treble cut and a buffer. The bass is adjustable via the “Voice” control, which varies the corner frequency of the filter coming off the op-amp. This also has the side-effect that the available gain increases as the Voice control is turned up.

Despite the legendary stature of the Zendrive, the circuit has among the lowest parts count of any Aion FX project and is a very good starting point for new builders.

Demo Video

Check out RJ Ronquillo’s demo video of the Azimuth Dynamic Overdrive.
Watch on YouTube →