Discover rich, responsive modulation with this used Pigtronix Quantum Effect Pedal—fully functional and in excellent condition. Offering analog-style phase shifting, tap tempo, envelope control, and stereo outputs, it provides expressive, high-quality sound trusted by serious players. Built with a durable, pedalboard-friendly design and true bypass switching, it ensures reliable performance on stage or in the studio. A valuable addition for any guitarist seeking professional modulation tone and dependable craftsmanship.