Electronic Audio Experiments releases Longsword V4.6 firmware update

June 1, 2026 · 1 sources

Electronic Audio Experiments has released a V4.6 update for the Longsword drive pedal, dated June 2026 and starting at serial #3253, according to the maker's changelog¹. The previous version, V4.5, covered serials #362-3252 and dates to January 2021¹.

The changelog lists two changes in V4.6: "Added intelligent momentary/latching behavior to footswitches" and "Reduced switch pop when engaging Boost circuit"¹. The maker's page does not describe how the momentary/latching behavior is configured or which footswitches it applies to.

The Longsword is an op-amp based drive pedal with cascaded gain stages that the maker says cover "the full range from clean boost to massive distortion"¹. Controls are Level, Drive, Low/High (a James/Baxandall tone stack), Mid (active boost/cut), Shift (selects the frequency controlled by the Mid pot), a three-position Diode switch (MOSFET clipping up, no diodes center, silicon clipping down), a Boost footswitch that engages a front-end mid boost, and a Boost knob that adds up to 20dB of gain when Boost is engaged¹. The maker states the pedal's broad frequency response suits guitar, baritone and bass¹.

Specifications as listed by the maker¹:

The maker recommends a regulated, isolated power supply rated for 100 mA minimum, states the PSU input is protected against reverse polarity and over-voltage up to 24V, and notes the pedals do not accept batteries¹. The Longsword is listed from $249.00¹.