ZenD — Smooth Overdrive

ZenD — Smooth Overdrive.

The Dumble tone, on your virtual pedalboard.

ZenD is an overdrive inspired by one of the most legendary and sought-after pedals of all time: the Hermida Zendrive, the famous "Dumble in a box" loved by Robben Ford and by generations of guitarists chasing that warm, vocal, incredibly dynamic tone.

At the heart of ZenD lies a faithful emulation of the original circuit: an asymmetric MOSFET-style soft-clipping stage that reproduces the behavior of the 2N7000s in the pedal's op-amp feedback loop. The result is a smooth, harmonically rich saturation that compresses like a tube: it stays clean when you brush the strings and opens up when you dig in, responding to your guitar's volume knob just like a real amplifier.

Four controls, endless shades. Gain sets the amount of saturation, from a nearly transparent boost to singing lead sustain. Tone sculpts the high end after the distortion stage, from dark and smoky to bright and articulate. Volume sets the output level with automatic gain compensation. And then there's Voice, the Zendrive's signature control: roll it counterclockwise for a tight, focused character, or clockwise for a fatter, rounder, velvety response — that's where the magic lives.

Under the hood, ZenD works like a modern plugin should: 4× oversampling on the distortion stage to eliminate aliasing, an anti-fizz filter to tame the harshest harmonics, smoothed parameters with zero zipper noise, and latency automatically compensated by your DAW.

Key features:

• Overdrive inspired by the Hermida Zendrive, with asymmetric MOSFET-style clipping.
• Volume, Gain, Tone and Voice controls, just like the original.
• 4× oversampling and anti-fizz filtering for an analog feel, never digital.
• Touch-sensitive response that follows your picking dynamics and guitar volume.
• Photorealistic interface with footswitch and status LED.
• 64-bit VST3 format for Windows.