Keeley DS-1 Ultra Pedal w/ 4 Cables Bundle Includes 4 Free Cables! With the diode Toggle Switch you have the DS-ULTRA! Huge tube like tone, switch back and you have the classic Seeing Eye Mod (SEM) version of the pedal for high gain, tube like distortion! Extra mods to increase the distortion range at maximum settings. Mods to correct the bass response and give you a fuller, more powerful tone. Perfect for Strats now with this mod! Comes with Cool Knobs!