MXR™ PHASE 45™ REPLICA COMPLETE KIT

A complete kit for a replica of the MXR™ Phase 45™, a smooth, musical two-stage phaser that is very underrated by people unacquainted with it. Everything is included, PCB and matched JFETs too.

About the effect

The Phase 45™ is the gentler sibling of the Phase 90™, giving a subtle, liquid sweep without the harsh, dated 1970s pop tones some phasers produce. It is a great choice if you want a beautiful phase sound that sits in the mix. The project page also documents a modification, with its own instructions, schematic and layout, for a Univibe™-style variant.

Demos: YouTube demo from Paul Crook (the first demo on the video, played dry and then with the P45) and another YouTube demo.

What you get

The kit includes all the parts and materials you need to build one, including the PCB and a matched set of JFET transistors selected for the best sound possible.

• 125B: spec sheet.
• No Enclosure: everything except the enclosure.

Build resources

• Complete instructions for this kit
• Phase 45™ build instructions (PDF)
• Schematic (PDF)
• Parts layout and wiring diagram (PDF)
• Modification instructions (PDF)
• General information about our kits

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