Sustain Filter
Budget PUE Sustain Filter fuzz recreation with added gain stage and sweepable mids scoop.
Drunk Beaver is a Polish pedal company founded by Ukrainian builder Vitalii Bobrov. The XR Series revives legendary Polish vintage pedals at accessible price points.
The SF-1 Sustain Filter recreates the rare Polish PUE Sustain Filter, delivering massive vintage-inspired fuzz tones. A new gain recovery stage after the tone control and a dedicated filter knob for scooping mids set it apart from the original. Both the Tone and Shift knobs have sensitive sweeps, yielding wildly different profiles depending on how they interact.
Level controls output volume, Sustain sets the gain level, Tone balances between lowpass and highpass filtering, and Shift adjusts mids from flat to scooped. True bypass. Draws 7mA from 9V DC center-negative.
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