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MXR Phase 90 Script Pedal Mod

MXR Phase 90 Script Pedal Mod


MXR Phase 90 Script Pedal Mod

Item # 2217
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MXR Phase 90 Script Pedal Mod

About This Item

Get two sounds from your MXR Phase 90
Switch between the classic MXR "script" and modern "block" sounds instantly

The MXR Phase 90 has a magical swirling sound that adds a subtle depth to your tone. The vintage "script" logo models had a much warmer and more organic tone than the later "block" logo versions. With just a few solder joints, you can experience both effects.

You don't need a new pedal! Mod your Phase 90 to sound how YOU want. It's easier than you think to get both sounds of your Phase 90. When you install the mod, you'll have a switch to change between modes to pick the right setting for you. It's like getting a vintage pedal for free!

It's more than just a schematic
We include step-by-step instructions for this mod with detailed pictures. Each step is fully illustrated in color with close-up views of every solder joint, component placement, and lug location.

And we even include directions on how to solder! If you get stuck give our techs a call—we'll walk you through it.

Start making and modding pedals
We've picked all of the right components to give you the best sound quality and reliability you need when tweaking your pedals. Take your first step into modding (and making) pedals and start customizing your sound.

MXR® is a registered trademark of Dunlop Manufacturing Inc.

WARNING: Cancer and Reproductive Harm -


Product Instructions

StewMac Pedal Mod Kit Instructions

Make all your pedals sound and play great.

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  • 4.67 average rating from 3 reviews
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Prefer Pre-Mod Sound


Verified Buyer

The kit was a fun project. Instructions were very good and the job was easy, if you have a little soldering experience. I was expecting a little more effect; in "script" mode the phasing is much more subtle. Suppose that could be preferable...


Best of Both Worlds with One Pedal


Verified Buyer

This mod actually does work as it says. Get both the SCRIPT and the BLOCK sound with one pedal. This mod gives me added sound options without adding another expensive pedal to the mix.
Thanks Stew Mac.


Nice mod for the MXR phase 90 pedal


Verified Buyer

This mod has easy to follow instructions and creates a warmer sounding phase when switch is engaged . I will definitely use this mod switched on in many of our bands songs .