The Intensity Knob allows you to decrease the strength of the phaser. If you want the ability to return to the stock, Block logo sound then we offer a switchable version called the Script switch. A large part of this mod includes removing R28 which is a feedback resistor. The modification reduces some of the pedal’s internal distortion, creates a more subtle and well balanced effect with a bit less resonance, and also reduces the upper-midrange boost in the signal. The most common modification for the Block Logo reissues (model M-101 or similar) would be the Script mod which replicates the tone of a vintage Phase 90. Our Overhaul Modifications are a combination of all of our most popular mods. If you already own an MXR Phase 90 it’s a great candidate for improvements.
