Guitar Greg Howe Signature Boost/Crunch/High Gain Overdrive effect pedal. Features: High Gain channel which has loads of bottom end and nice crisp highs, a very dynamic Crunch channel which emphasises the mids with very little compression, and of course that famous 12 dB Boost channel that we are all so familiar with. Features the usual cast metal casing, the high quality switches with ‘on’ indicating LED’s, and the new Carl Martin DC/DC converter circuitry. This new power circuit allows you to use a 9 V Power Supply while still maintaining the +-12 V circuitry that is crucial for component quality and extra headroom above most 9 V pedals. Of course it's recommend the Carl Martin ProPower Version 2 as the power supply of choice. Power consumption is a surprising 150 mA. 6.3 mm mono jack input/output. Dimensions (L x W x H): 120 x 186 x 55 mm. Weight: 820 g.