A dual-channel guitar effect is a pedal that features two independent circuits or modes, allowing players to switch between different tones or blend them together. This design is common in overdrive, distortion, modulation, and delay pedals, providing increased versatility for live performances and studio use.

Each channel can have its own gain, EQ, or effect settings, effectively giving you two pedals in one. Some pedals allow stacking both channels for a richer, more dynamic sound, while others let you toggle between them for seamless transitions. Dual-channel effects are ideal for guitarists who need multiple tones at their feet without the hassle of adjusting settings mid-song.