Moog MF-105S MuRFThe MF 105S MuRF is a re invention of Moog Musics classic MF 105 analog effects pedal. The MF 105 MuRF (Multiple Resonant Filter Array), originally introduced in 2004, contained two basic functions: an 8 band array of resonant filters that can be voiced for bass or mid frequency response, and a pre programmed ANIMATION module that generates sequences of envelopes that modulate the levels of the 8 filters. Designed by Bob Moog and his engineering team,