The MXR CSP101 Phase 90 Custom Shop Guitar Effects Pedal is a Custom Shop Phaser guitar effects pedal. Often imitated but never duplicated, the elusive vintage “script” Phase 90 is at the top of the list for pedal collector’s world-wide.

The original version—available from the company’s inception to the late 70’s – practically defined the classic phase shifter sound, and was heard on everything from hard rock, jazz-fusion, to funk hits. The MXR Custom Shop Script Phase 90 brings back the headroom and clarity of the original, along with its ultra-warm and smooth phasing and reduced midrange swell. And it comes dressed in the original smooth orange paint job and script logo with an LED, direct from the MXR Custom Shop.

The main features of the MXR CSP101 Phase 90 Custom Shop Guitar Effects Pedal include:

• Original circuit design for smooth and lush 4-stage phasing
• Same indestructible die-cast housing
• Original smooth orange finish and script logo