The individual pieces that make up the Dark Side workstation are Fuzz, Delay and Modulation; Keeley engineers painstakingly extracted the nuances of earlier transistor based fuzzes to make a more transparent Big Fuzz; Select from 12 different multi-head tape style syncopated delays or a combination of Flanger, Rotary Speaker Cabinet, U-Vibe, and Phaser and start shaping your own musical reality; A TRS Expression Pedal port and effect order switch stack yet another brick of fun, functionality, and flexibility to your wall of sound; 9VDC Center Negative, Power Supply Required