Carl Martin Classic ChorusThe Classic Chorus by Carl Martin, is not just another chorus pedal. Yes it can be powered by either a 9V battery or a regulated 9V power supply; yes it has the solid diecast housing with the cool off white chicken head knobs and the cool CM graphics; yes it has that great CM quality bypass switching, and the LEDs to indicate operation; and yes when you plug into this pedal, you will get a chorus effect but. there is so much more! Carl spent a year