Moog MF-101S Lowpass FilterThe MF 101S Lowpass Filter is a re invention of the classic Moog MF 101 analog effects pedal. The hardware MF 101 Lowpass Filter, introduced in 1998, contained two complete modular functions: a classic, all analog 4 pole Lowpass Filter paired with an envelope follower to impart dynamic motion to the filtered sound. Designed by Bob Moog and his engineering team, the MF 101 was a direct descendant of the original Moog modular synthesizers, adapted to