Introducing the Cornerstone a new variable personality drive from Diamond Pedals.Capable of low gain grit to touch sensitive crunch to searing leads, its multiple unique discrete gain stages with distributed dual gain controls allows the user to dial in a wide range of harmonically complex distortion tones. The dual gain controls allows the user to independently yet interactively overdrive two of the unique gain stages in the drive chain, which coupled with a midrange cut/boost control and treble profile switch make for limitless tonal personalities. And even with this much flexibility, a simple control layout with usable ranges across the board make finding any particular personality just a matter of secondsControls Gain 1: similar to a preamp‰ gain stage Gain 2: similar to power tube‰ saturation, with wider range Mids: midrange cut/boost control Bright (BRT) switch: a treble contour switch, useful when switching between single coil and humbucker pickup guitars Features Premium audio components Small footprint with top mounted jacks Multiple discrete gain stages with two gain controls Standard 9V operation (battery or power supply) True bypass switching Midrange cut/boost High frequency contour switch