Erica Synths and Gamechanger Audio — Plasma Drive
Erica Synths Fusion Plasma Drive Manual PDF
Erica Synths Fusion Plasma Drive – Eurorack Cheat Sheet
Unique high-voltage distortion for Eurorack, combining vacuum tubes and plasma discharges, with tracking oscillators and assignable EQ for over-the-top sound mangling.
Summary Table
Inputs, Outputs, Controls & Their Functions
| Name |
Type |
Function/Range |
Location |
| INPUT |
Audio In |
Main audio input, up to 20V ptp |
Bottom left |
| OUTPUT |
Audio Out |
Main processed output |
Bottom right |
| VOLTAGE CV |
CV In |
Controls distortion level, -10V to +10V |
Bottom right |
| DRY/WET CV |
CV In |
Controls dry/wet mix, -10V to +10V |
Bottom left |
| OCT TRIG |
Trigger In |
Toggles 1 octave up/down tracking oscillator |
Middle right |
| SUB TRIG |
Trigger In |
Toggles 2 oct/3 oct down sub tracking oscillator |
Middle right |
Knobs
| Name |
Function |
| IN LVL |
Sets input gain; critical for signal shaping |
| VOLTAGE |
Manual distortion/overdrive amount (CV summed) |
| DRY/WET |
Blend between clean/dry and wet/distorted signal (CV summed) |
| TREBLE |
EQ high frequency boost/cut (±10dB @ 1.5kHz) |
| BASS |
EQ low frequency boost/cut (±9dB @ 600Hz) |
Switches/Buttons
| Name |
Type |
Function |
| OCT Switch |
3-position |
Up = +1octave, Mid = +1 & -1octave, Down = -1octave (tracking oscillators) |
| EQ ON/OFF |
Toggle (Latching) |
ON = EQ before and after distortion; OFF = EQ after only |
| OCT TRIGG |
Button (lit) |
Manually engages/disengages tracking oscillator(s) |
| SUB TRIGG |
Button (lit) |
Manually engages/disengages sub tracking oscillators (-2, -3 oct); only works if OCT switch is MID or DOWN |
Quick Start
- Connect Audio Input to
INPUT.
- Set IN LVL to avoid unwanted clipping or volume loss.
- Raise VOLTAGE to increase distortion (use CV for modulation).
- Set DRY/WET for desired blend (use CV for morphing).
- Use TREBLE/BASS EQ for tone shaping.
- Experiment with OCT Switch for extra harmonics. Engage with OCT TRIGG/SUB TRIGG or via external triggers.
- EQ ON feeds EQ before and after distortion; EQ OFF is post only.
- Take your output signal from
OUTPUT.
Technical Specs
- Audio Input: up to 20V ptp
- CV Inputs: -10V to +10V
- Panel width: 16HP
- Depth: 45mm
- Power: 135mA @ +12V / 87mA @ -12V
Tips
- Input Level is Crucial: Hotter signals = more interaction with plasma tube.
- Use CV for Animation: Modulate
VOLTAGE or DRY/WET for evolving distortion.
- Tracking Oscillators: Add wild octave-up or sub-octave buzz and analog-style grit.
- Try Rhythmic Triggers: Send rhythmic gates/triggers to
OCT TRIG or SUB TRIG for dynamic distortion changes.
Generated With Eurorack Processor