MXR M101 Phase 90 Effects Pedal

The MXR Phase 90 pedal is a pioneering effects unit that helped define the tone of countless rock guitarists. Since its debut in 1974, the Phase 90 has been prized for its lush, swirling phaser sounds and simple, intuitive operation. Now celebrating over 40 years of tone-shaping innovation, the Phase 90 delivers the same legendary phasing effects that made it an essential part of Eddie Van Halen, Dave Grohl, and Nancy Wilson's rigs.

Classic Vintage Phasing

The Phase 90 produces a dramatic, shimmering phaser effect that can transform your tone from subtle and spacious to wildly undulating. Its single knob lets you dial in the perfect phasing speed, from a nearly static, long cycle to a rapid, aquatic warble. The Phase 90 works equally well on guitar, bass, keyboards, and vocals, adding dimension and movement.

Roadworthy and Battery Powered

The Phase 90 features a compact, rugged enclosure built for life on the road or in the studio. It runs on a single 9V battery or optional power adapter for maximum convenience. A status LED lets you know when the effect is active and warns you when the battery is running low. The Phase 90's simple, no-nonsense design has remained largely unchanged since 1974, a testament to its timeless tones and construction.

A Pedalboard Essential

For guitarists looking to expand their sonic palette, the Phase 90 is an ideal first pedal or a perfect addition to an existing pedalboard. Its lush, swirling phaser sounds pair beautifully with overdrive, distortion, delay, and reverb pedals. The Phase 90 has shaped the tone of rock guitar and continues to inspire new sounds and styles. Add this legend to your rig and tap into an effect that helped define generations of music.

Made in the USA

Like all MXR pedals, the Phase 90 is handcrafted in the USA using high-quality components. MXR is dedicated to premium sound, roadworthy build quality, and exceptional value. The Phase 90 delivers on this promise with an affordable price tag, limited lifetime warranty, and the tones that made it an icon.