ELECTRONIC AUDIO EXPERIMENTS Eldritch Blast Electronic Audio Experiments

Electrical Specifications

Bypass: Relay switching with true bypass

Input impedance @ 1 Khz: 220kΩ

Output impedance @ 1 Khz: 1kΩ

Power: 9V DC, 2.1 mm center negative barrel. The current draw is 80mA with both channels engaged.

We recommend a regulated, isolated power supply rated for 100 mA minimum. The PSU input is protected against reverse polarity. Our pedals do not accept batteries.

Controls

• Gain: Controls amount of gain and low frequencies at input. Turn clockwise to add gain and thickness.

• More: Controls amount of signal feeding octave circuit. Use to adjust the sensitivity of intermodulation textures.

• Tone: Active peaking filters working on the highs and midrange simultaneously. Only in use when star footswitch is on.

• Bass: Active peaking filter centered around 100 Hz. Only in use when star footswitch is on.

• Volume: Loudness amount.

• Splat: Shifts the dynamics and gating of the transistor stages, switching between a smoother character or a harsh note decay with splatty artifacts.

• Mode: Changes transistors in the octave generator to change the texture and amount of saturation.

• Chaos: Engages a self-oscillating mode with highly interactive squeals, squealches, and sub-bass drones.

• Engage Footswitch: Master bypass.

• Star Footswitch: EQ on/off.

Changelog

• V3 (Current as of April 2023)
  – Redesigned Chaos toggle, now produces an oscillating effect
  – Significant increase in range of More control
  – Significant increase in gain and output volume, more than both V1 and V2

• V2 (2021)
  – SMT PCB layout
  – Soft touch bypass
  – Added Chaos toggle (this version creates a gated texture)
  – Increased headroom of active EQ (Tone/Bass) controls
  – Slightly less gain and output volume relative to V1

• V1 (2018)
  – Initial release
  – Thru hole PCB
  – Mechanical bypass switching
  – No Chaos toggle