Used Electro-Harmonix XO Q-Tron Plus Envelope Filter Effect Pedal

Used Electro-Harmonix XO Q-Tron Plus Envelope Filter in good condition delivers classic auto-wah and dynamic filter effects with expressive response. Featuring switchable effects loop, variable attack response, and selectable low-pass, band-pass, and high-pass filters, it’s powered by a 24V adapter (not included) for maximum headroom. Ideal for guitar, bass, and keys, this pedal provides rich, funky tones with intuitive controls, including Peak, Gain, and Range knobs, and response toggles for precise tonal shaping.