Line 6 MM4 User Manual
MODULATION MODELER – QUICK REFERENCE FOR MODEL-SPECIFIC FUNCTIONS
MODEL TWEAK TWEEZ
Opto Tremolo Shape Volume Sensing
Bias Tremolo Shape Volume Sensing
Phaser Feedback No. of Phase Stages
Dual Phaser Feedback LFO Shape
Panned Phaser Left-Center-Right Pan Speed
U-Vibe Feedback Volume Sensing
Rotary Drum Tone Drive
Rotary Drum & Horn Horn Depth Drive
Analog Flanger Feedback Manual (Delay Time)
Jet Flanger Feedback Manual (Delay Time)
MM4 Modulation Modeler
34
Analog Chorus Chorus/Vibrato Select Tone
Dimension Speed/Depth/Tweek/Tweez = Switch 1/2/3/4
Tri Chorus Depth (Circuit 2) Depth (Circuit 3)
Pitch Vibrato Rise Time Volume Sensing
Ring Modulator Shape AM/FM Select
Panner Shape Volume Sensing
MODULATION MODELER DETAILS
The following pages introduce the 16 models of the Modulation Modeler, created as the result
of our in-depth studies of a dream collection of classic effect stomp boxes and rack units.
Historical information on the gear that inspired each model hips you to the role played by each
unit we studied in the history of great guitar tone. We’ve designed your Modulation Modeler
to capture the sonic spirit of these classics, and bring it to you with the powerful new advantages
of programmability and versatility. Also, be sure to check out the panel illustration at the bottom
of each page for a sample setting for that model. Enjoy!
MM4 Modulation Modeler
35
Opto Tremolo – based on the tremolo circuitry
of the 1965 Fender Deluxe Reverb amplifier.
The classic Fender “blackface era” ’65 Deluxe Reverb
– as well as most boutique tremolo pedals – features
a tremolo circuit that works by pulsing a light source
directed at a photo resistor. Players everywhere love
the smooth, round, and gentle pulse that optical
tremolo is known for.
On our model, TWEAK adjusts the shape from
classic gentle tremolo all the way to dramatic scifi throb. TWEEZ gives you a "peak follower,' making
the tremolo rate sensitive to input level, so that a
louder input signal speeds up the tremolo, and a
lower volume input slows it down.
This image is provided for the sole purpose of identifying the specific product that was studied
during Line 6's sound model development, and does not imply any cooperation or endorsement.
ROTARY DRUM & HORN
ROTARY DRUM
U - VIBE
PANNED PHASER
DUAL PHASER
MM4 Modulation Modeler
PHASER
BIAS TREMOLO
OPTO TREMOLO
ANALOG FLANGER
RING MODULATOR
PANNING
JET FLANGER
ANALOG CHORUS
DIMENSION
TRI CHORUS
PITCH VIBRATO
MM4 Modulation Modeler
SPEED
TWEAK adjusts shape.
36
TWEEZ adjusts volume sensitivity (peak follower).
Bias Tremolo – based on the tremolo
circuitry of the 1960 Vox AC15 amplifier.
Vintage tremolo came in two flavors: Opto and
Bias. Our Bias Model emulates a classic Vox tremolo
circuit design.
Bias tremolo produces a deep, 3-dimensional,
kinda phasey tremolo that’s sure to keep you warm
and cozy all through the night. Experiment with
TWEAK to change the waveform and you’ll find
that your MM4 can take you places you’ve never
heard before. TWEEZ gives you a "peak follower,'
making the tremolo rate sensitive to input level,
so that a louder input signal speeds up the tremolo,
and a lower volume input slows it down.
P
ROGRAMMABLE CHORUS FLANGER TREMOLO VIBE ROTARY PHASER
MIXDEPTH TWEAK TWEEZ
This image is provided for the sole purpose of identifying the specific product that was studied
during Line 6's sound model development, and does not imply any cooperation or endorsement.
MM4 Modulation Modeler
ROTARY DRUM & HORN
ROTARY DRUM
U - VIBE
PANNED PHASER
DUAL PHASER
PHASER
BIAS TREMOLO
OPTO TREMOLO
ANALOG FLANGER
RING MODULATOR
PANNING
JET FLANGER
ANALOG CHORUS
DIMENSION
TRI CHORUS
PITCH VIBRATO
MM4 Modulation Modeler
SPEED
TWEAK adjusts shape.
TWEEZ adjusts volume sensitivity (peak follower).
P
ROGRAMMABLE CHORUS FLANGER TREMOLO VIBE ROTARY PHASER
MIXDEPTH TWEAK TWEEZ
37
Phaser – based on the MXR Phase 90.
Our Phaser model is based on the phaser that changed the
world – the MXR Phase 90. The Phase 90 is relatively
subtle compared to other phasers, and becomes part of the
overall tone. Its lush, organic, and groovy swirl can be
heard all over the first two Van Halen albums, as well as
Jimmy Page’s work on Physical Graffiti.
The Phase 90 is a four stage phaser; its single knob
controls only speed. Our model stays true to the original
when all controls (except Speed) are like the setting below.
But, being the flexibility freaks we are, we also let you
explore destinations unknown. TWEAK controls Feedback;
TWEEZ selects 4, 8, 12, or 16 Phase Stages (thus controlling
the degree of out-of-phase-ness).
This image is provided for the sole purpose of identifying the specific product that was studied
during Line 6's sound model development, and does not imply any cooperation or endorsement.
ROTARY DRUM & HORN
ROTARY DRUM
U - VIBE
PANNED PHASER
DUAL PHASER
MM4 Modulation Modeler
PHASER
BIAS TREMOLO
OPTO TREMOLO
ANALOG FLANGER
RING MODULATOR
PANNING
JET FLANGER
ANALOG CHORUS
DIMENSION
TRI CHORUS
PITCH VIBRATO
MM4 Modulation Modeler
SPEED
TWEAK adjusts feedback.
38
TWEEZ selects the number of phase stages.
Dual Phaser – Mu-Tron Bi-Phase.
What could be better than one really cool phaser? Why,
two of course! The Dual Phaser is our model of the
innovative Mu-Tron Bi-Phase. This multi-stage phaser is
known for its big jet sound and its sheer physical size.
The Bi-Phase featured controls for waveform, Speed,
and Depth – and was the first phaser to hit the market
with a variable Feedback control. Our Dual Phaser model
gives you the lush, offset phasing that make the Bi-Phase
a treasured classic.
The TWEAK knob recreates that innovative variable
feedback control, and TWEEZ allows you to select the
waveform shape – sine or square wave. So dial up some
swirl and get down with your bad self.
P
ROGRAMMABLE CHORUS FLANGER TREMOLO VIBE ROTARY PHASER
MIXDEPTH TWEAK TWEEZ
8
12
416
This image is provided for the sole purpose of identifying the specific product that was studied
during Line 6's sound model development, and does not imply any cooperation or endorsement.
MM4 Modulation Modeler
ROTARY DRUM & HORN
ROTARY DRUM
U - VIBE
PANNED PHASER
DUAL PHASER
PHASER
BIAS TREMOLO
OPTO TREMOLO
ANALOG FLANGER
RING MODULATOR
PANNING
JET FLANGER
ANALOG CHORUS
DIMENSION
TRI CHORUS
PITCH VIBRATO
TWEAK adjusts feedback.
MM4 Modulation Modeler
SPEED
TWEEZ adjusts LFO shape.
P
ROGRAMMABLE CHORUS FLANGER TREMOLO VIBE ROTARY PHASER
MIXDEPTH TWEAK TWEEZ
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