Description

Discover inspiring textures with this used Donner HARMONIC SQUARE effect pedal in great condition, perfect for adding rich harmonic layers and dynamic tonal shaping to your rig. Built in a compact, pedalboard-friendly metal housing, it features straightforward knob controls for quick dialing in sounds, true bypass switching for a clean signal path, and standard 1/4" input/output jacks. Runs on 9V DC (center-negative) power for easy integration into most setups.

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