MF 101 je nizkotonski filter narejen pri Bob Moog-u.Uporabljamo ga z bas kitaro.kitaro,klaviaturami,ali pri že posnetih trakovih v studiu.
Moog Moogerfooger MF-101 - Low Pass Filter - black panel case with hardwood sides, rotary frequency control (varies the frequency over a six-octave range), rotary rate control (varies the LFO frequency from 0.1Hz to 25Hz), rotary LFO amount control (adjusts the amount that the LFO output sweeps the carrier oscillator), rotary mix control (crossfades continuously from unmodulated to modulated audio), rotary drive control (adjusts the gain of the audio input), square/sine rocker switch (chooses the LFO waveform). Lo-Hi rocker switch (chooses the low frequency carrier range (2Hz to 130Hz) and the high frequency carrier range (60Hz to 4kHz)). Three colour level LED is used to set the drive control, LFO LED indicates the LFO rate, two colour bypass LED tells whether the ring modulator is on or bypassed. On/Bypass, audio in (line/instrument) and audio out, amount, cut-off and resonance (all in/outputs are on 1/4" jack). Includes 9V AC power supply and manual. Dimensions: 22.8 x 15.2 x 6.3cm. Weight: 1kg.