PLASMA Rack
A 1U rackmount analog distortion unit that runs the signal through a xenon-filled plasma tube driven at up to 5,500 volts. It is aimed at studio and professional users, such as sound designers, synth and guitar players, who want a distinctive, harmonically rich distortion.
- 1U rack unit with xenon plasma tube distortion
- Plasma discharge voltage of 5.5 kV
- Balanced combo and unbalanced instrument inputs with -20 dB pad
- Three FX loops with send and return jacks
- MIDI in/out/thru and expression pedal input
- Baxandall EQ and tremolo with rate up to 2600 Hz
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The Plasma Rack passes the incoming signal through a high-voltage step-up flyback transformer, which turns it into a series of electrical discharges inside a sealed, xenon-filled tube. A receiver picks up those discharges and converts them back to audio-level signal, giving a heavy distortion rich in harmonics and overtones. The unit sits in a single rack space and is built for studio and professional use.
It has an unbalanced instrument input and a balanced combo mic/line input with a switchable -20 dB pad, plus unbalanced and balanced outputs. Three FX loops (send and return pairs) allow other processors to be placed in the chain. Shaping tools include a three-band Baxandall EQ that can be controlled over MIDI, a tremolo with a rate up to 2600 Hz, and a depth control that blends in or out of phase between the clean and distorted signals.
MIDI in, out and thru on 5-pin DIN connectors and an expression pedal input provide external control. The internal switch-mode power supply accepts 90–245 VAC at 50/60 Hz, so the unit can be used across regions.
Video
Specifikationer
- Märke
- Gamechanger Audio
- Modell
- PLASMA Rack
- Kategori
- Effekter och pedaler
Unbalanced input
- Connector
- Tip-sleeve 1/4" jack
- Impedance
- 1MΩ
- Maximum input level
- +11 dBu
- Maximum undistorted input level
- 0 dBu (Gain setting at minimum)
Balanced input
- Connector
- Combo connector: Female XLR and Tip-Ring-Sleeve ¼" (Pin 2 and Tip hot)
- Impedance
- 4.38 kΩ; 1.5 kΩ (PAD switch on)
- Maximum input level
- +17 dBu (Clamped by protection devices); +37 dBu (PAD switch on, clamped by protection devices)
- Maximum undistorted input level
- +2dBu (Gain setting at minimum); +22 dBu (PAD switch on, Gain setting at min)
Outputs
- Unbalanced output connector
- Tip-Sleeve ¼" Jack
- Unbalanced output impedance
- 220Ω
- Unbalanced maximum output level
- +7 dBu
- Balanced output connector
- Male XLR (Pin 2 Hot)
- Balanced output impedance
- 200 Ω
- Balanced maximum output level
- +10 dBu
FX loops (1-3)
- Send connector
- Tip-Sleeve ¼" Jack
- Send maximum output level
- +12 dBu (Line level); -6 dBu (Instrument level)
- Return connector
- Tip-Sleeve ¼" Jack
- Return impedance
- 1 MΩ
Connectivity
- MIDI in/out/through
- 5-pin DIN (180 degree)
- Expression pedal
- Tip-Ring-Sleeve ¼" jack, for potentiometer-based pedals
Audio
- Preamp gain range
- -26 to +12 dB
- Volume control gain
- -80 to +12 dB
- Pad attenuation
- -20 dB, balanced input only
- EQ
- Baxandall, MIDI controllable
- EQ low
- 10 Hz, -20 to 20 dB Low-pass shelving filter
- EQ mid
- 600 Hz, -6 to 6 dB
- EQ high
- 20 kHz, -10 to 10 dB, High-pass shelving filter
- Tremolo rate range
- 0.85 to 2600 Hz
- Frequency response
- 30 Hz to 20 kHz (±3 dB)
- Signal to noise ratio
- 69 dB clean channel (A weighted); 78 dB drive channel (A weighted)
- Tube gas
- Xenon
- Discharge voltage
- 5.5 kV
Power
- Power supply type
- Universal, switch – mode
- Operating voltage
- 90 – 245 VAC, 50/60 Hz
- Power consumption
- 60 W
Physical
- Dimensions
- 440mm (W) x 255mm (D) x 40mm (H)
- Weight
- 4.1 kg
- Operating temperature
- 0º to 40º C
- Shipping box dimensions
- 540mm (W) x 380mm (D) x 100mm (H)
- Shipping weight
- 4.5 kg
In the box
- Power cable
- Suitable for your region