Electronic Audio Experiments - Longsword (Black Sparkle)

The Electronic Audio Experiments Longsword is yet another contender in the endless void of op-amp based drive pedals, but it is one that takes the topology in a novel direction. Cascaded gain stages allow for the full range from clean boost to massive distortion, all without sacrificing tonal flexibility. The equalizer combines bass and treble shelving filters with an active, frequency-selectable midrange boost/cut control. This lets the user sculpt a diverse array of tones and carve out a niche in even the most dense of mixes. The Longsword has a broad frequency response which makes it work equally well with guitar, baritone, and bass.

Controls:

• Level: output volume

• Drive: go from light grit to heavy overdrive

• Low/High: James/Baxandall tone stack (shelving filters)

• Mid: active midrange boost/cut

• Shift: selects frequency controlled by Mid pot

• Diode: selects between clipping diodes, to alter dynamics and headroom

  • Up: MOSFET clipping, medium compression

  • Center: no diodes, minimal compression

  • Down: Silicon diode clipping, maximum compression

• Boost (Footswitch): engages a front end mid boost

• Boost (Knob): adds up to 20dB of gain when the Boost is engaged

Electrical Specifications

Bypass: Relay switching with true bypass

Input impedance @ 1 Khz: 500kΩ

Output impedance @ 1 Khz: 1kΩ

Power: 9V DC, 2.1 mm center negative barrel. The current draw is 75 mA.

We recommend a regulated, isolated power supply rated for 100 mA minimum. The PSU input is protected against reverse polarity and over-voltage up to 24V. Our pedals do not accept batteries.

DEMO:

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