MXR EVH90 Phase 90 Grab a piece of Eddie's magic with the MXR EVH 90a collaboration between Eddie Van Halen and Dunlop Instantly toggle between a vintage, "Script Logo" phase tone and a more modern "Block Logo" phaser EVH 90 sports the greatest graphics in the history of rock: the red, white, and black stripes from Eddie's legendary Frankenstein guitar Please refer user manual attached under product details for instructions and troubleshooting steps.