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MOOG MOOGERFOOGER MF-101 LOW PASS FILTER.
The award-winning MF-101
Lowpass Filter is a direct descendant of the original Moog modular
synthesizers. It contains two complete modular functions: a
voltage-controlled lowpass filter and an envelope follower. It can be
used with any instrument level to line level signal.
The moogerfooger filter's control parameters are signal mix, cutoff
frequency, resonance amount, and envelope amount. All of the Lowpass
Filter's parameters can be controlled with expression pedals or
external control voltages as well as by great feeling knobs which beg
to be tweaked. Panel switches select filter mode and envelope follower
speed. 1/4" jacks are provided for audio input and output,
pedal/control inputs and envelope follower output. A heavy-duty, yet
smooth-acting bypass switch allows tabletop or foot operation.
A lowpass filter removes high frequencies from a tone. It makes the
tone sound more mellow or muted. The lower the Cutoff, the more muted
the tone sounds. Imagine a window shade. As it is pulled down, it cuts
out the higher light, then the light from the middle of the window,
then finally all the light. The MF-101
Lowpass Filter does the same sort of thing to the sound spectrum with
it's Cutoff Control. As you turn up the Resonance control, the
overtones near the cutoff
frequency are boosted. Resonance gives the moogerfooger filter the same
classic Moog filter sound as the Minimoog; and Moog modular
synthesizers.
The envelope follower tracks the loudness contour (envelope) of a
sound, and produces a voltage that follows the dynamics of your
playing. Every time you play a note, the envelope voltage goes up and
then down. The harder you play, the higher the envelope voltage goes.
The envelope follower opens and closes the lowpass filter. Think of the
envelope voltage as an invisible hand that turns the CUTOFF knob up and
down every time you play a note. Since the envelope follows the
dynamics of your instrument's signal, you actually play the filter as
you play your instrument.
FEATURES:
- CUTOFF rotary control, which varies the filter’s cutoff frequency over an eight-octave range.
- RESONANCE rotary control, which varies the shape of the filter’s response, from pure lowpass to actual oscillation.
- ENVELOPE AMOUNT rotary control, which adjusts the amount that the input signal’s envelope sweeps the filter cutoff frequency.
- MIX rotary control, which crossfades continuously from unfiltered to filtered audio.
- DRIVE rotary control, which adjusts the gain of the audio input.
- SMOOTH-FAST rocker switch, which chooses between smooth and fast envelope follower response.
- 2-POLE 4-POLE rocker switch, which chooses between 2-pole (bright) and 4-pole (deep) filter frequency response.
- LEVEL, a three-color LED that is used to set the DRIVE control.
- ENV, a LED that indicates the strength of the envelope voltage.
- BYPASS, a two-color LED that tells whether the filter is on or bypassed.
- ON/BYPASS, a rugged, smooth-acting ‘stomp switch.’
JACK PANEL FEATURES:
- AUDIO IN 1/4" phone jack - accepts any instrument-level or line-level audio signal from -16 dBm to +4 dbm.
- AUDIO OUT 1/4" phone jack - -4 dBm nominal output level.
- CUTOFF, RESONANCE, AMOUNT, MIX, all of which are stereo 1/4" jacks
that accept moogerfooger EP1 (or equivalent) expression pedals, or
control voltages from either two-circuit or three-circuit 1/4" jacks.
- ENVELOPE OUT jack - delivers the Envelope Control voltage for use by other voltage-controlled devices.
- +9V POWER INPUT jack - accepts standard 9 volt power adaptors (power adaptor included).
SPECS:
- CASE: Black panel with hardwood sides - classic analog appearance.
- DIMENSIONS: 9" x 6" x 2-1/2"
- NET WEIGHT: 2 lb
- SHIPPING WEIGHT: 4 lb, including power adaptor and instruction manual.
- POWER REQUIREMENTS: 105-125 volt, 5W. 220 volt power adaptor available on special order.
AUDIO DEMOS:
 MP3 Moogerfooger MF-101 Audio Demo 01
MP3 Moogerfooger MF-101 Audio Demo 02
MP3 Moogerfooger MF-101 Audio Demo 03
MP3 Moogerfooger MF-101 Audio Demo 04
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