The Carbon Copy Analog Delay delivers rich, warm bucket-brigade delay with up to 600ms of delay time and modulation. Go from crisp bathroom slap echoes to epic, Gilmour esque delays with the MXR Carbon Copy Analog Delay. Featuring 600ms of delay time with optional modulation and a three-knob layout that controls Delay, Mix and Regen. In addition, there are two internal trim pots that offer user-adjustable width and rate control of the modulation for even more tonal options. All done by a completely analog audio path for authentic rich, warm analog delay-made possible only by old-school analog bucket brigade technology. True bypass. The MXR Carbon Copy Analog Delay is powered by one 9-volt battery (remove bottom plate to install), a 9-volt AC Adapter such as the Dunlop ECB003/ECB003EU or a DC Brick power supply.