MXR® 50th Anniversary Phase 90 – M101GLD (Limited Gold Edition)
50 Years of 90

Key Features:
Originally released in 1972 as MXR’s very first pedal, the Phase 90 set the standard for what a phaser could and should be. Instantly iconic, endlessly musical, and unmistakably lush, it has become the benchmark phaser for guitarists across genres and generations.

• Classic Phase 90 circuitry in a limited-edition gold finish
• Celebrating 50 years of MXR innovation (1974–2024)
• Same legendary tone—smooth, warm, and musical
• True to the original design with single Speed control
• Pedalboard-ready with rugged construction and timeless style

More Than a Phase
From the swirling solos of David Gilmour to the unmistakable textures of Eddie Van Halen, Tom Morello, and John Mayer, the Phase 90 has shaped the sound of rock ’n’ roll for five decades. Its timeless design and one-knob simplicity have made it a go-to tool for expanding tonal horizons.

A Masterpiece Finish
For this special 50th anniversary release, MXR has reimagined the Phase 90 with a commemorative gold finish—an elegant tribute to a pedal that helped define modern guitar tone. Instantly recognizable in its original orange, this limited-edition gold version adds collector-worthy aesthetics to its already legendary status.

Display It or Play It
Whether you're showcasing it in a collection or dropping it into your live rig, the 50th Anniversary Phase 90 offers the same spatially rich, swirling phase tones that made it a staple on millions of pedalboards worldwide.

Power Requirements:
Runs on a 9V battery (via bottom plate), Dunlop ECB003/ECB003EU adapter, or MXR® Brick™ Series power supply (not included).

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Guy Eckelberger
Professional Organic Pedal Farmer since 1976
Member and Founder – Tone Farmers Union since 1961