Used MXR Variphase CSP-001 Effect Pedal

The used MXR Variphase CSP-001 Effect Pedal offers vintage-style phase shifting with modern versatility, and is in great condition with only minor cosmetic wear. This pedal features the same warm analog circuitry as the classic Phase 90 but adds an optional foot-controlled expression pedal input, allowing you to sweep the phase speed dynamically in real time—perfect for expressive live performances. With true bypass switching, a rugged aluminum housing, and simple single-speed knob control when not using the expression input, the Variphase provides rich, swirling tones ideal for guitar, bass, and keys. Powered by a 9V battery or external adapter (not included), it’s a unique and flexible modulation tool for tone-shaping enthusiasts.