Used Darkglass HARMONIC BOOSTER Effect Pedal

Used Darkglass Harmonic Booster in excellent condition, delivering transparent EQ and musical harmonic enhancement for bass or guitar. Features a 4-band active EQ with selectable mid frequency, plus a Harmonics control for added richness without losing clarity. Built in a rugged compact enclosure with true bypass switching and standard 9V DC (center-negative) power. Ideal for tightening lows, sweetening highs, and adding studio-like polish to any pedalboard or amp setup.