The MXR Phase 90 (M101) is an iconic phaser pedal that has shaped the sound of countless guitar legends. With a single Speed knob, this pedal takes you from a subtle, spatial shimmer to a rich, swirling phase effect. Whether you're adding texture to your clean tones or creating a full-on psychedelic swoosh, the Phase 90 delivers warm, analog phasing that works perfectly for guitar, bass, keyboards, and more. Key Features: ✔ Classic 4-stage phasing for smooth, warm modulation ✔ Simple one-knob control to dial in subtle or intense phase effects ✔ Versatile sound—works great with clean and distorted tones ✔ Used by guitar legends like Eddie Van Halen and David Gilmour ✔ Compact, road-ready MXR housing ✔ Power options: 9V battery, Dunlop ECB003 adapter, or Iso-Brick™ power supplies (not included) Add legendary analog warmth and movement to your tone with the MXR Phase 90—a must-have pedal for any musician's board!