Electronic Audio Experiments releases Prismatic Wall Version 1

June 1, 2024 · 1 sources

Electronic Audio Experiments released the original version of the Prismatic Wall, a sympathetic string resonator, in June 2024. The maker's hardware changelog lists "Version 1 (June 2024) Original release"¹.

The maker describes the pedal as "part reverb and part synthesizer," with timbres it says span from the harmonic aura of a third bridge to the chromatic suspensions of a grand piano¹. It uses a physical string model formed by tuned delay lines, with tuning achieved by varying the sample rate of the system¹. The Mode selector sets the interval spacing between strings across four modes: single with harmonic overtones, stacked neutral thirds, stacked fifths, and chromatic¹. Damping and Decay control brightness and sustain, and the upper range of Decay adds analog feedback for infinite drones¹.

Controls include Tune, which adjusts resonator pitch across a four octave range, Mix for wet/dry blend, and Drive, which sets the signal level driving the resonator with overload at higher settings¹. The pedal has a multi-mode, assignable LFO with periodic and random waveforms, full MIDI implementation for all parameters, and 16 preset slots, three accessible from the front panel and the rest via MIDI¹. A CTRL jack handles MIDI, expression and CV input, and firmware updates load via MIDI Sysex messages¹.

The maker recommends a regulated, isolated power supply rated for 200mA minimum to accommodate startup surges, and states the pedals do not accept batteries¹. The Prismatic Wall is listed at $399.00¹. The standard finish is light pink with black and white print, which the maker notes was updated in late 2025; Shadowfell and Acid Etch finishes are also listed¹. The page showed the pedal as temporarily unavailable, with the maker stating it was building units as fast as it could and directing customers to its email newsletter for upcoming batches¹.