The LPD Mach I Distortion is a preamp based on the Bogner/Boogie/KittyHawk style of gain that was popular in the late 80s and early 90s. Thick and punchy with plenty of midrange to cut through a mix. Loads of harmonics and a feature set that allows tailoring to any setup. Level, Drive, Treble, and Bass plus HDRM and Mids toggle switches round out the control set.