Gamechanger Audio Plasma

An "out-of-the-ordinary" distortion in the Gamechanger Audio universe

The Plasma Pedal follows the line of effects that don't try to imitate a classic sound but invent a new way to saturate. Here, your signal is converted into a series of high-voltage discharges inside a xenon tube, then reconverted into analog audio. The result: you're not "pushing" a traditional circuit; you're sculpting a genuine electrical phenomenon with an immediately identifiable character.

For whom, which styles, and in what contexts?

The Gamechanger Audio Plasma is designed for guitarists who want to break away from familiar saturations (rock, stoner, metal, noise, industrial), but it also shines on synths, drum machines, samples, and bass lines to add controlled aggression. In the studio, it serves as a sound design tool to thicken a track; live, it excels whenever sharp contrasts between silence and impact are sought, especially in staccato playing.

Controls and adjustment philosophy

The interface is straightforward: the Voltage control increases saturation intensity by raising the energy of the discharges, while Blend adjusts the proportion of the converted signal. At maximum Blend, the pedal passes only the sound coming from the tube: as soon as you stop playing your note, the discharge stops and the background noise disappears, like a musical and organic gate. This approach encourages "by feel" settings: you adapt the attack's aggressiveness to your pick, right-hand dynamics, and pickup output level.

Sound

Expect a fast, heavy, and highly textured distortion with sharp harmonics and an immediate biting sensation. The Plasma emphasizes non-linear harmonic saturations, resulting in rich attacks and sometimes abrasive grain, perfect for making a riff stand out in a dense mix. Its wide spectrum also provides an unusual presence, useful for "exploding" a guitar, electronic, or synth sound without just adding a simple gain boost.

Technical specifications

Saturation pedal	overdrive, distortion and fuzz textures.	Input impedance	1 megohm.
Saturation principle	electrical discharges in a xenon tube, then conversion back into an analog audio signal.	Output impedance	100 ohms.
Noise reduction	natural when Blend is set to 100% processed signal.	Maximum input and output levels	7 V peak-to-peak, equivalent to +10 dBu.
Audio configuration	mono input and output.	Power connector	2.1 x 5.5 mm barrel plug.
Switching	true bypass.	Dimensions	148 x 96 x 70 mm.
Potentiometers	Voltage, Blend, Volume, Low Freq and High Freq.	Weight	840 g.
Clean EQ switch	activation or deactivation of equalization on the direct signal.	AC power supply	not included.
Bass	9 dB boost or cut, with a transition frequency of 600 Hz.	Required power supply	9 V DC, center-negative.
Treble	10 dB boost or cut, with a transition frequency of 1.5 kHz.	Specified minimum current	250 mA ; use a power supply output delivering at least 300 mA to meet the requirements of the specification sheet.
Frequency response	20 Hz to 22 kHz.	Maximum power consumption	2.7 W.
Activation indicator	white LED.	Average power consumption	1 W.
Input	unbalanced 6.35 mm TS jack.	Standby power consumption	0.025 W.
Output	unbalanced 6.35 mm TS jack.	Battery operation	not supported.