Electronic Audio Experiments Longsword


Electronic Audio Experiments

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 tones ranging from clean boost to dynamic distortion to massively clipped fuzz, all with serious output volume available for driving the front end of an amp. The equalizer combines bass and treble shelving filters with an active, semi-parametric 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 guitar, and bass.


  • Level - output volume of the effect
  • Drive - go from clean boost to heavy overdrive
  • Low/High - James/Baxandall tone stack (shelving filters)
  • Mid - active midrange boost/cut
  • Freq - selects frequency controlled by Mid pot, for either 300Hz (low mids) or 1kHz (high mids)
  • Clip - selects between diodes to alter dynamics and headroom
  • Boost - engages a pre-gain boost circuit with a moderate high pass and up to 20dB of gain, with a trimpot for internal adjustments

This pedal comes in a powder-coated 1590BBM enclosure. 

Additional features include true bypass switching, a standard power supply (9VDC 2.1mm center negative), and top-mounted jacks. 

All Longswords come with the standard limited warranty.


  • Version 3 (Spring 2017)
    • Charge pump for 18V of headroom from a 9V supply
    • Boost channel added
    • All new clipping modes
    • New art
  • Version 2.1 (November 2016)
    • Eliminated range toggle
    • Removed most electrolytic capacitors from the signal path
  • Version 2 (Fall 2015)
    • New PCB layout (Rev 1)
    • Added gain switching
    • Added clipping selector
    • Added range toggle
    • Now capable of running from 9V to 18V
  • Version 1 (Summer 2015)
    • Original release

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