Diamond Cornerstone OverdriveIntroducing 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