The JHS Hard Drive is a fresh approach to achieving high gain distortion in a pedal format, the Hard Drive includes cascaded gain stages and a hard limiting circuit, followed by a class AB amplifier section that drives a “sweepable midrange” EQ and Baxandall bass and treble controls. With its generous external controls, the Hard Drive lets you dial in everything from grinding tube amp crunch to a bona fide wall of distortion that can easily cut through any stage or studio mix. Volume - Controls the overall volume of the pedal. Left is less, right is more. Mid Freq - Controls which mid frequencies are boosted or scooped by the Mid control. Drive (Distortion) - Controls the amount of drive (distortion). Left is less, right is more. Bass - Controls the bass frequencies level. Noon is flat, left is cut, right is boosted. Middle - Controls the mid frequencies level. Noon is flat, left is scooped, right is boosted. The frequency range is set by the Mid Freq control. Treble - Controls the treble frequencies level. Noon is flat, left is cut, right is boosted. Silent soft touch switching with a buffered bypass. Product Specs Item Number: 33121 Make: JHS Pedals Model: Hard Drive - Tan Condition: Brand New Finish: Tan Categories: effects-and-pedals ⇒ distortion ⇒ pedal Function: Distortion Made In: United States MPN: HDTN UPC: 650415212637 Modular Grid: Pedals ⓘ + Dimensions*: 62 mm wide 121 mm high Power*: 78 mA / 9 V DC / Negative Center * User contributed details