Electro-Harmonix

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Used Electro-Harmonix Cntl Knob pedal in excellent condition. This compact, expression pedal simulator lets you set two static control voltage values and switch between them instantly—perfect for controlling sweepable parameters like filter cutoff or pitch shift. Runs on standard 9V power and features TRS output for universal compatibility with expression pedal inputs. Rugged construction and intuitive operation make it a great addition to any pedalboard setup needing precise parameter control.

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