Celebrate five decades of modulation legend with the MXR 50th Anniversary Phase 90, a special-edition version of MXR’s iconic phaser. This limited-run pedal comes in a striking gold finish that honors the legacy of the original 1972 Phase 90 — MXR’s first ever effect. With a single Speed knob, you can dial in everything from slow, dreamy swirls to fast, psychedelic warbles. The pedal uses the same four-stage analog phasing circuit that made the original so beloved, delivering rich, lush modulation with classic character. It features a true hard-wire bypass, so when the effect is off, your signal stays completely unaffected. Powered by a 9-volt battery or a compatible 9V DC adapter, it’s built in a rugged steel chassis that’s stage- and pedalboard-ready. Whether you’re playing clean rhythms, soaring solos, or anything in between, this phase shifter delivers that signature swirl with a commemorative, collectible look. Key Features Limited-edition 50th anniversary gold finish Classic four-stage analog phaser circuit Single Speed knob controls modulation rate True hard-wire bypass for seamless tone when disengaged Rugged steel housing, built to withstand live performance Power via 9 V battery or 9 V DC adapter