Page 1
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
Page 2
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
Page 3
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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Page 4
Panned Phaser – based on Ibanez Flying Pan.
Modeled from the Ibanez Flying Pan, the Panned Phaser
embodies the mantra of many ’70s pedals designers: “If
you like them separate, why not both together?” You can
bet your bell-bottom jeans that the Flying Pan kept heads
spinning around the dance floor when they heard this
four-stage phase shifter with a panner built in. It’s all that
and a bag of chips.
The Flying Pan featured controls for phase speed, pan
speed, and a three position switch to assign the phaser to
the left, right, or both channels. Being the make-it-awhole-lot-like-the-original kind of crazies we are, the
Panned Phaser features all of these same controls. Plug in
and take ’em for a spin.
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
Center
Left Only Right Only
TWEAK assigns the phaser output.
40
U-Vibe – based on Uni-Vibe.
The now-legendary Uni-Vibe was put on the map in 1969
by Jimi Hendrix. Essentially a four-stage phase shifter, the
Uni-Vibe is best known for its watery texture and sultry
tones. One listen to “Machine Gun” and you’ll know what
we mean.
For an authentic Uni-Vibe type experience, use the
optional Line 6 expression pedal to sweep speed. TWEAK
and TWEEZ give you feature extras – feedback, plus a
“peak follower” control to make speed sensitive to input
level (so louder input signals speed up the effect, and lower
volume inputs slow it down). To recreate the effect of the
Uni-Vibe vibrato switch, turn the mix control to 100%
wet. (That’s what the switch did on the original.)
P
ROGRAMMABLE CHORUS FLANGER TREMOLO VIBE ROTARY PHASER
TWEEZ adjusts pan speed.
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 feedback.
TWEEZ adjusts volume sensitivity (peak follower).
P
ROGRAMMABLE CHORUS FLANGER TREMOLO VIBE ROTARY PHASER
MIXDEPTH TWEAK TWEEZ
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Page 5
Rotary Drum – based on Fender Vibratone.
What goes around comes around with our model of the
Fender Vibratone. The famous sound of the Vibratone can
be heard on Stevie Ray Vaughan’s “Cold Shot,” and was
created by a rotating drum surrounding a 10" speaker. The
Styrofoam drum has two slots, and the cabinet has three
(left, right and top). The drum rotates with a vertical
motion, sending sound spinning in all directions. It’s a
great sound, but to get it you had to have your main amp,
a Vibratone, and another amplifier to drive the Vibratone.
That’s quite a commitment of space and back strength!
Our Rotary Drum model delivers all of the tone and none
of the hassle – simply dial up the settings you need and
your Stomp Box Modeler will spin you into a sonic frenzy.
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 tone.
42
Rotary Drum & Horn – based on Leslie 145.
It’s legendary, it’s furniture, it’s way too heavy to move...
and it inspired our Rotary Drum & Horn model – it’s the
Leslie model 145! Originally the mainstay for B3 organ
players, the Leslie 145 also brings guitar players a huge,
three-dimensional swirl-fest of sound. The 145 features
two sound sources: the lower part of the cabinet has a 12"
speaker surrounded by a motorized rotary drum, and the
upper enclosure houses a spinning horn.
Whether clean or overdriven, this is one of those
signature sounds you could only get from the original –
until now! Needless to say, your Stomp Box Modeler is
designed to produce every nuance of grind and spin without
the investment of space or Endust.
P
ROGRAMMABLE CHORUS FLANGER TREMOLO VIBE ROTARY PHASER
TWEEZ adjusts drive.
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
DEPTH adjusts drum depth.
TWEAK adjusts horn depth.
P
ROGRAMMABLE CHORUS FLANGER TREMOLO VIBE ROTARY PHASER
TWEEZ adjusts drive.
MIXDEPTH TWEAK TWEEZ
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Page 6
Analog Flanger – based on MXR Flanger.
This is our model of the classic MXR Flanger. You’ve
probably heard it many times on Van Halen’s Fair Warning,
Women and Children First, and “Unchained.” It’s a very
warm-sounding flanger, and features a bucket brigade
analog circuit design, as well as a uniquely-shaped waveform.
Our Analog Flanger model features all of the control
and great tone of its inspiration. The TWEAK knob
controls feedback, and the TWEEZ knob serves as the
manual control – which lets you adjust the delay time for
the flanging effect.
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.
44
TWEEZ adjusts manual (delay time).
Jet Flanger – based on A/DA Flanger.
This is our model of the A/DA “studio quiet” Flanger.
Introduced in 1977, this stomp box has a sweep range of
35-to-1 and a built-in compressor that work together with
the tone circuitry to give the A/DA its signature jet-like
sweep. It’s a bit more dramatic than the MXR, and has a
different wave shape – and that’s why ya gotta have both.
The DEPTH knob controls the sweep range. TWEAK
adjusts feedback, and the TWEEZ knob emulates the
A/DA flanger’s “Manual” knob. Plug in, spin up the depth
and feedback, and get ready for take-off.
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
TWEAK adjusts feedback.
MM4 Modulation Modeler
P
ROGRAMMABLE CHORUS FLANGER TREMOLO VIBE ROTARY PHASER
SPEED
TWEEZ adjusts manual (delay time).
MIXDEPTH TWEAK TWEEZ
45
Page 7
Analog Chorus – based on
Boss CE-1 Chorus Ensemble.
The MM4 wouldn’t be complete without paying homage
to the original stomp box chorus, the Boss CE-1. The
CE-1 came onto the music scene in 1977 and made waves
with its big, warm and groovy chorus tones. Quickly, it
found its way onto Andy Summers’ pedal board and then
into our homes via The Police. Controls included Speed,
Depth and a switch to go from chorus to vibrato mode.
The CE-1 is spacious, and sounds great into a distorted
amp. The Analog Chorus model is every bit as warm and
gooey as its inspiration. Dial up some lush landscape and
enter into chorus heaven.
The TWEAK knob acts like a 2-position switch to
select either the chorus or vibe effect.
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
Chorus Vibe
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.
TWEAK selects chorus or vibrato.
46
Dimension – based on Roland Dimension D.
This unique effect is based on the classic Roland
Dimension D which was one of the first true-stereo
chorus units and featured two separate delay lines
working off the same oscillator. These independent
chorus effects were then panned between the stereo
outputs, with a resulting stereo image that’s broader
than a double-wide trailer. Relatively subtle in its
nature, the Dimension D became an industry
standard for double-track effects.
For the Dimension model, the SPEED, DEPTH,
TWEAK, and TWEEZ knobs each act as a two
position switch. Speed and Depth were preset on
the Dimension D, and could be recalled by pressing
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
TWEEZ adjusts tone.
one of the four front panel push-button switches.
Different combinations of on and off for the various
switches gave different speed and depth settings.
Try a variety of knob settings for the Dimension
model and get a range of shimmering lusciousness.
P
ROGRAMMABLE CHORUS FLANGER TREMOLO VIBE ROTARY PHASER
MIXDEPTH TWEAK TWEEZ
MM4 Modulation Modeler
Off On
Switch 4.Switch 3.Switch 1. Switch 2.
47
Page 8
Tri Chorus – based on Tri-Stereo Chorus.
This model is based on the elusive Song Bird / DyTronics
Tri-Stereo Chorus. You may have never seen one, but
you’ve heard it hundreds of times – this was the definitive
chorus of Michael Landau, Tim Pierce, Steve Lukather,
Dann Huff and most of the L.A. Studio scene. This analog
chorus featured 3 chorus circuits working off of 12(!) low
frequency oscillators and three separate delay lines. Nothing
produced a wider, more spacious stereo image than this.
And if you had one in your rack-system, you probably paid
dearly for this holy grail of chorus tone.
For the Tri-Stereo model, our crafty scientists faithfully
recreated the tone of this legendary circuit and doublewide stereo image – plug in and bliss out!
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
DEPTH adjusts the depth of circuit 1.
TWEAK adjusts the depth of circuit 2.
48
TWEEZ adjusts the depth of circuit 3.
Pitch Vibrato – based on Boss VB-2.
This model is based on one of those really cool effects
you’ve always wanted to use, but could never justify buying
– the Boss VB-2 vibrato. The VB-2 featured a bucket
brigade circuit that produced bubbly vibrato, but its big
claim to fame was the “rise time” control. Thanks to this
clever circuit, each time you kicked it on, it sped up to
where you last had it set.
Pretty keen, right? We figured it deserved a place here
in your stuffed-full magic box of musical modulations. The
TWEEZ knob gives you a "peak follower" control, allowing
you to make the vibrato rate sensitive to input level, so
that a louder input signal speeds up the vibrato, and a
lower volume input slows it down. Knock yourself out.
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 rise time.
TWEEZ adjusts volume sensitivity (peak follower).
P
ROGRAMMABLE CHORUS FLANGER TREMOLO VIBE ROTARY PHASER
MIXDEPTH TWEAK TWEEZ
49
Page 9
Ring Modulator.
It’s out there somewhere between Plan Nine From
Outer Space and Phantom Menace. Ring modulators
are for those special times when you want different,
weird, distinctive, strange and otherwise
nontraditional guitar sounds. Ring Modulation is
a very percussive sounding effect, and sounds almost
as if you’re changing the signal in a twistedly
mathematical, torturing-the-computer sort of way.
Via the TWEEZ knob, the Ring Modulator model
gives you a choice of modulation flavors – AM
(amplitude modulation), FM (frequency
modulation) or somewhere in between.
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.
TWEEZ blends from AM to FM.
50
Panner.
From here to there and back again, what can you say about
a panner? Well, I guess you can say this: a panner makes
your sound constantly pan back and forth between left and
right channels. If you’re looking for something to keep
you up late nights with your headphones on, this is it. This
effect is only gonna work for you in stereo, by the way; if
you try and run it in mono, it’s basically tremolo.
The TWEAK knob lets you choose the waveform that
controls the movement of your sound from left to right.
The sine waveform (fully counterclockwise) slides your
sound smoothly from side to side. The square wave (fully
clockwise) gives you that extreme bouncing-from-left-toright sort of experience.
P
ROGRAMMABLE CHORUS FLANGER TREMOLO VIBE ROTARY PHASER
MIXDEPTH TWEAK TWEEZ
AM FM
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
TWEAK adjusts shape.
TWEEZ adjusts volume sensitivity (peak follower).
SPEED
P
ROGRAMMABLE CHORUS FLANGER TREMOLO VIBE ROTARY PHASER
MIXDEPTH TWEAK TWEEZ
51
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