The PLASMA RACK is a 1U sized high-end audio effects unit designed for professional and studio use.
A significant expansion of the unique High Voltage Distortion concept behind PLASMA Pedal, the PLASMA Rack features an extra large xenon tube that conducts audio signal at voltages of up to 5500 volts.

In essence – you are playing a bolt of electricity, and the electric discharges created in the PLASMA tube are instantly converted back into analog audio signal. The result – a quick, responsive, and extremely heavy distortion with tons of unique character and an extremely satisfying noise-gating effect.



Natural noise-gate

By maxing out the BLEND knob you can achieve a fully wet signal, produced only by the gas-discharge tube. This means that as soon as you stop playing,  the electrical discharge within the gas-filled tube is interrupted,  and the pedal will not produce any output signal at all.  This feature allows you to achieve extreme contrasts between individual notes, by eliminating all of the in-between noises created by the instrument’s pick-ups or by humming strings.

PLASMA RACK features a Clean Gate function which allows to apply this noise-gating to the clean signal.

unique harmonic saturation

PLASMA RACK converts your instrument’s signal into a rapid series of electric discharges, which results in a large amount of non-linear harmonic saturation that causes extremely rich and responsive attacks, and brings out screechingly sharp overtones and harmonics.

These harmonic artefacts, produced as a byproduct of the high-voltage discharge are uncommon in traditional signal amplification, and therefore PLASMA distortion is unlike anything you have heard before.


Extremely wide EQ

The PLASMA RACK loses the original DRY input signal and creates a new signal from fluctuations in the electromagnetic field surrounding the gas-discharge tube.

This allows to bring out an extremely wide range of frequencies that are often beyond the instrument’s capabilities. This is controlled with a 3-band equaliser.


PLASMA RACK boasts a range of added features: tremolo/ring modulator, Op Amp Drive, MIDI sync, master/slave control for stereo effects when two racks are used together, three external effects loops, and an “oversaturation” effect, similar to an old-school Octa-Fuzz


Signal path


Parameter  Description
EQ LOW Low band eq setting
EQ MID Mid band eq setting
EQ HI Hi band eq setting
VOLUME Master volume control
RATE Tremolo rate control
DRIVE Drive gain control
VOLTAGE Voltage gain control
BLEND Blend between clean and lamp channels
OVERSATURATE Activation of oversaturate mode
GATE Control for clean gate effect
CL/DR Selection between clean and drive signal for blend path
INV Activation of opposite phase tremolo between clean and lamp tremolo
CLEAN Activation of clean tremolo
LAMP Activation of lamp tremolo
COMP Selection between 3 different lamp signal compression levels
CLEAN_EQ Control for bypassing eq for clean channel

Plasma Rack is produced in limited batches made to order.