Gamechanger Audio Third Man Records Plasma Coil Distortion Pedal

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Gamechanger Audio and Third Man Records' Plasma Coil Distortion and Octave pedal features clipping thru a xenon-filled tube, subharmonic and suboctave effects, and voltage control.
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Product Description

Gamechanger Audio and Third Man Records are proud to present the revolutionary PLASMA Coil Distortion Pedal! This ultra-powerful pedal is built with high-tech components to make sure a guitarist gets exactly the sound they were hoping for. Whether it's fuzz, crunch, overdrive or distortion you're looking for - this pedal can do it all. And if that wasn't enough already, Jack White of The Raconteurs has been using this pedal on his new Help Us Stranger tour and upcoming projects.

At its heart is Gamechanger’s innovative High Voltage Distortion technology that expresses audio signal as a series of electrical discharges. Even though they’ve been printing the words: “High Voltage Rock’n’Roll” on t-shirts since 1973, PLASMA Distortion is the first commercial musical device that literally amplifies the audio signal to 3500 Volts.

Plasma Coil takes High Voltage distortion to new heights by adding multiple Octave-style circuits, and an additional Effects footswitch that can be toggled as latching or momentary.

The expected life of the xenon tube is 10,000 to 70,000 hours of active playing.


The PLASMA product series is a revolutionary approach within the realm of overdrive and distortion, as it is a new and previously unexplored method of achieving signal clipping.

Instead of using LED circuits, transistors or vacuum tubes to produce overdrive, PLASMA technology transforms your instrument’s live signal into a series of continuous high-voltage discharges within a xenon-filled tube.


Simplified signal chain: Input -> EQ -> Octave/Effect -> Transformer to High Voltage -> Xenon Tube -> Antenna that picks up the electromagnetic vibrations surrounding the Tube -> Output

Gamechanger Audio Third Man Records Plasma Coil Distortion Pedal Features

  • 2 EQ controls to boost or cut low and high frequencies;
  • VOLTAGE knob – adjusts the amount of electrical current sent to the PLASMA Tube.
  • EFFECTS knob allows you to select 1 of 6 different effect types:
  • Volume boost
  • 2 Subharmonic modes (Bitcrush-style octave down)
  • 1 Upper harmonic mode (Octafuzz-style octave up)
  • 2 Mixed modes (Upper and lower harmonics combined)
  • Effects footswitch – engages the PLASMA COIL’s special effect circuit.
  • Master VOLUME knob – cuts or boosts the output signal level.
  • ON/OFF silent footswitch.
  • Effects footswitch toggle on the back panel – configure effects footswitch as a latching ON/OFF switch or as a momentary switch.

You're Playing a Bolt of Lightning

In essence – you are playing a bolt of electricity, and the electrical discharges produced by your instrument are instantly converted back into an analog audio signal, producing a quick, responsive, and extremely heavy distortion with TONS of unique character!

Full on Plasma Sound

The PLASMA Coil does not feature a BLEND knob - when engaged it produces a fully WET signal, created by the PLASMA Tube circuit.

The pedal's output can be shaped with a master VOLUME knob, and two powerful EQ knobs (LOW Freq, Hi Freq) - each capable of providing a significant volume boost in their respective frequency range.

Natural Noise Gate

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. It is eliminating all of the in-between noises created by the instrument’s pick-ups or by humming strings. This feature allows you to achieve extreme contrasts between individual notes.

Extremely Wide EQ

The PLASMA Coil loses the original dry input signal and creates a new signal from fluctuations in the electromagnetic field surrounding the gas-discharge tube. This allows for a very wide range of frequencies. Boost and cut the lows and highs with the dedicated knobs.

Unique Harmonic Saturation

PLASMA 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 screeching sharp overtones and harmonics.

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

Voltage Control

The VOLTAGE KNOB lets you adjust the amount of current sent to the Xenon tube - effectively increasing or decreasing the threshold necessary for achieving an electrical discharge in the tube.

Lower VOLTAGE settings allow you to achieve extreme contrasts between individual notes, by and eliminate all of the in-between noises created by the instrument’s pick-ups or humming strings.

When VOLTAGE is cranked, the PLASMA Coil will be very sensitive to any input signal, allowing you to create very long sustained lines. Still, you can always use your instrument’s volume knob or palm-muting techniques to control the gating effect.

FX Modes

The PLASMA Coil features a specially designed multi-mode FX section with six types of octave-down and octave-up circuits.

Subharmonics are produced by modulating the Xenon tube's Voltage with multiple divisions of the instruments fundamental frequency, resulting in a glitchy, distorted octave-down sound that is somewhere between a ring-mod and a bit-crush effect.

Upper harmonics are produced by using a full-wave rectifier and band-pass filter, creating an octa-fuzz type sound with a distinct 2nd harmonic enhancement (which is perceived as an octave-up effect).

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Helpful Info about the Manufacturer
Phone:  202 407 9741 Warranty:  Lifetime warranty for all guitar pedals and a 5 year warranty and lifetime service for all other products.

Product Specifications

Gamechanger Audio Third Man Records Plasma Coil Distortion Pedal Specifications

  • Input type: 1/4” Unbalanced TS
  • Input impedance: 1MΩ
  • Max Input Level: 7Vpp (+10dBu)
  • Output Type: 1/4” Unbalanced TS
  • Output Impedance: 100Ω
  • Max Output Level: 7Vpp (+10dBu)
  • Power Connector: Center negative 2.1 x 5.5 mm barrel plug (the standard 9V)
  • Frequency Response: 20Hz to 22kHz
  • EQ LOW FRQ Boost/Cut: ± 9dB, 600Hz corner Freq.
  • EQ HI FREQ Boost/Cut: ± 10dB, 1.5kHz corner freq.
  • Indicator Check: white LED
  • Connectors: IN, OUT, DC input
  • Power Requirements: 300mA, 9VDC
  • Peak Power Consumption: 2.7 W
  • Mean Power Consumption: 1 W
  • Power Consumption during Stand-by: 0.025 W
  • Dimensions: 5.83" x 3.78" x 2.75" (148 mm * 96 mm * 70 mm)
  • Weight: 840 g / 1.8 lbs

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