Perfectly replicating a classic swirly phaser from the experimental depths of the '70s, the Mutation Phasor II from Warm Audio is a vintage-style electro-optical phaser pedal designed to add depth, wobble, and instant funk to guitars, basses, and keyboards. Sporting a potent adjustable feedback circuit as well as depth and rate controls, you can achieve wide phasing with a rate between 1 and 18 Hz, for everything from rich, warm tone to waves of psychedelic sound.

The Mutation Phasor II is constructed from premium electronic components to match the original as closely as possible, including classic RC4558P op-amps, vintage-style diodes, hand-selected film capacitors, and carbon resistors, all inside a durable, road-worthy steel case with a classic look. This pedal can operate on either a 9V battery or a 9 VDC power adapter.