Based on the Peavey amp, this preamp pedal is built to achieve that super saturated death metal guitar tone. Famously stacked with chainsaw tones to get that Slaughter of the Soul guitar tone. This is the high gain channel as a standalone preamp with some modifications. My modifications maintain the original character but are what consider "quality of life" upgrades as they just make it slightly easier to dial in.
The active 3 band EQ makes it easy to dial in some killer tones but for some additional flexibility look inside to find DIP switches for the Bright (originally only available on the clean channel), hi/lo Gain, and Mid Shift controls just like the original.
Running at ±15v inside means you'll have the same headroom you'd expect from the original design.
CONTROLS
Name / Location / Description
Pre / External / Controls the amount of signal in the EQ.
Sat.[uration] / External / A gain stage meant to emulate tube distortion.
Post / External / Controls the output signal.
Low / External / Boost/Cut the bass frequencies.
Mid / External / Boost/Cut the mid frequencies.
Shift / External Button / Adjust the center frequency of the mid control. Set to up by default.
High / External / Boost/Cut the high frequencies.
Bright Switch / Internal DIP / While this can add some noise at higher gain, this will get you those ice pick highs.. Default is down (off).
Gain Switch / External Button / Toggle between two overall gain levels. Default is up.
Bypass LED Brightness / Internal / Adjust overall brightness of front LED. Default setting at minimum (full CCW).
POWER Standard 9VDC ONLY - CENTER NEGATIVE
This product contains internal circuitry to increase the 9VDC supply to higher voltages for additional headroom.
This product contains THE overvoltage circuit for 9v input only.
SWITCHING - TRUE BYPASS Soft click (1.1KGf) mechanical 3PDT.
