Distortion pedals usually offer two clipping choices: Soft-Clipped or Hard-Clipped. Soft-Clipped pedals, like Tube Screamers or Full-Drive 2, get their distortion by using diodes placed in the feedback loop of their Op-Amps and give a cleaner, more compressed, low-to-medium gained overdrive sound. Hard-Clipped pedals like RAT or OCD use diodes tied to ground or, unique to the OCD v2, Mosfets that are tied to the half-way point between 9v and ground, offering a more natural sounding distortion. The PlimSoul is the only pedal to offer both Soft &Hard clipping with separate control over each. The PlimSoul's unique, independent dual-stage clipping circuit was designed to replicate not only the sound, but the feel of a tube amp with its subtleties and complexities. - Input Impedance increased from 500k to 700K+ ohms for even better interaction with guitar's Volume knob. - Top-Mounted Jacks and external power port. - Soft-Clipping (Stage 1) and Hard-Clipping (Stage 2) are now truly-independent, allowing for aggressive, punchy gain with the Hard-Clipping knob turned up even while the Soft-Clipping knob is turned down! - Hard clipping now uses two Germanium Diodes, instead of LEDs...it's a night-and-day improvement! - Loss-less Bass switch, located just before the Hard-Clipping in the circuit, giving the ability for tight, percussive distortion that's not muddy. - Treble control now offers plenty of brightness when turned up. The Soft-Clipping stage is extremely Asymmetrical, the Hard-Clipping stage is Symmetrical, dial-in infinite combinations of the two. The Fulltone PlimSoul mkII is Hand-Built in the U.S.A. using top-notch, full size components, many of which are designed by and exclusively for Fulltone.