24 25Quick Start GuideMODEL D
(EN) Step 2: Controls
MIDI Section
(1) USB PORT – This USB type B jack
allows connection to a computer.
The MODEL D will show up as a
class-compliant USB MIDI device,
capable of supporting MIDI in
and out.
USB MIDI IN – accepts incoming
MIDI data from an application.
USB MIDI OUT – sends MIDI data
to an application.
(2) MIDI IN – this 5-pin DIN
jack receives MIDI data from
an external source. This will
commonly be a MIDI keyboard,
an external hardware sequencer,
a computer equipped with a MIDI
interface, etc.
(3) MIDI THRU – this 5-pin DIN jack
is used to pass through MIDI
data received at the MIDI INPUT.
This will commonly be sent to
another MODEL D synthesizer
to run a Poly Chain or to a drum
machine assigned to a dierent
MIDI Channel.
Controllers Section
(4) OSC3/FILTER EG – switch
between OSC 3 or the Filter
Envelope as a modulation source.
(5) GLIDE – adjust the amount of
Glide (Portamento), between
notes on the keyboard.
(6) TUNE – adjust the frequency of
oscillators 1, 2, and 3. (OSC3 is
not aected if the OSC3 CONTROL
switch is o.)
(7) OSCILLATOR MODULATION –
when ON, the three oscillators are
modulated by the modulation mix,
set by the MOD MIX knob.
(8) MOD MIX – adjust the modulation
mix between OSC3/Filter EG and
Noise/LFO.
(9) NOISE (MOD SRC)/ LFO – switch
between Noise (or external
modulation source) or Low
Frequency Oscillator (LFO)
as a modulation source.
(10) MOD DEPTH – adjust the
modulation depth from o
to maximum. The modulation
depth can also be adjusted using
the modulation wheel
on a MIDI keyboard.
(11) WAVE SHAPE – select the LFO
wave shape from either triangular
or square wave.
(12) LFO RATE – adjusts the frequency
of the LFO.
Oscillator Bank Section
(13) OSC 3 CONTROL – when ON, the
frequency of Oscillator 3 will vary
with the keyboard. When OFF,
the keyboard, Pitch wheel, and
Modulation wheel, will have no
eect on OSC3.
(14) FREQUENCY RANGE – select from
six frequency ranges of Oscillator
1, 2, or 3.
(15) FREQUENCY ADJUSTMENT –
adjust the frequency of Oscillator
2 or 3.
(16) WAVE SHAPE – select the wave
shape used for Oscillator 1, 2, or
3 from: triangular, triangular/
sawtooth (OSC 1 and 2), reverse
sawtooth (OSC 3), sawtooth,
square, medium pulse,
and narrow pulse.
(17) MOD SOURCE (INPUT) – a
llows connection of an external
modulation source. If nothing is
connected here, then the internal
Noise generator is available as a
modulation source.
(18) OSC 1V/OCT (INPUT) – this input
allows the frequency of the three
oscillators to be adjusted by an
external control voltage (1 Volt
input increase, will increase the
frequency by one Octave).
(19) LFO CV (INPUT) – allows control
of the LFO frequency by an
external control voltage.
Mixer Section
(20) VOLUME – adjust the volume
of Oscillator 1, 2, or 3.
(21) ON/OFF – select the sources to
play from OSC 1, OSC 2, OSC 3,
Noise, and External Input, or any
combination of these 5 sources.
(22) NOISE VOLUME – adjust the level
of the internal Noise source.
(23) WHITE/PINK – switch the internal
Noise source from Pink noise to
White noise.
(24) OVERLOAD – indicates when
the audio levels of the mix are
overloading the mixer section.
(25) EXT IN VOLUME – adjust the level
of any external source playing into
the external Input. If nothing is
connected to the external input,
then instead of any external audio
coming in at this point, the main
MODEL D output is automatically
connected here.
This creates a feedback path from
the output back into the mixer
section, to get extra phat bass or
extra crunch. In this case, the EXT
IN volume control will adjust the
level of the incoming main audio
fed back into the mixer section.
(26) LFO Triangular (OUTPUT)
– outputs the internal LFO
triangular-wave signal.
(27) LFO Square (OUTPUT) –
outputs the internal LFO
square-wave signal.
(28) EXT (INPUT) – connect any
external line-level audio source
to this 3.5 mm input. If nothing
is connected here, then the
main audio output is internally
connected to this external input.
(29) MIX (OUTPUT) – outputs the nal
mix from this Mixer section.
Modiers Section
(30) DECAY – when ON, the signal
will decay during the time set
by the DECAY TIME knob after
a note or external trigger is
released. When OFF, it will decay
immediately after a note or
external trigger is released.
LOUDNESS DECAY – aects
the decay of volume level of the
Loudness section.
FILTER DECAY – aects the decay
of the cuto frequency of the
Filter section.
(31) KEYBOARD CONTROL – these
switches vary the eect of the
keyboard tracking, where the lter
section is aected by the pitch of
note played.
Switch 1 and 2 OFF –
no keyboard tracking eect
Switch 1 and 2 ON –
maximum eect
Switch 1 ON (only) –
⁄ of maximum eect
Switch 2 ON (only) –
⁄ of maximum eect
(32) FILTER MODULATION –
when ON, the lter section is
modulated by the modulation mix,
set by the MOD MIX knob.
(33) FILTER MODE – select the lter
between Low-pass or High-pass.
(34) LOUDNESS CONTOUR – these
3 knobs adjust the overall shape
enveloping the audio after it has
passed through the mixer section
and lter section. The controls
aect the change in volume
(loudness) level with time.
ATTACK – adjust the time it takes
for the signal to reach a maximum
level after a note is played.
DECAY TIME – adjust the time
for a signal to decay down to
the sustain volume level after
the attack time is over. If the
LOUDNESS DECAY switch is ON, this
is also how long it takes to decay to
minimum once a note is released.
SUSTAIN – adjust the volume level
that the signal is sustained after
the attack time and initial decay
time have been reached.
(35) FILTER ENVELOPE CONTROLS –
these 3 knobs adjust the overall
shape enveloping the lter
section. The controls aect
the change in cuto frequency
with time.
ATTACK – adjust the time for
the cuto frequency to increase
from its set value and reach the
frequency set by the AMOUNT OF
CONTOUR control.
DECAY TIME – adjust the time
for the cuto frequency to decay
down to the sustain frequency
after the attack time is over. If the
FILTER DECAY switch is ON, then
this decay time is also how long
it takes to decay from the sustain
frequency once a note is released.
SUSTAIN – adjust the cuto to a
frequency which is sustained after
the attack time and initial decay
time have been reached.
(36) FILTER CONTROLS – the lter
can be low-pass or high-pass,
depending on the setting of the
FILTER MODE switch. In low-pass
mode, audio frequencies above the
cuto frequency
are attenuated. In high-pass
mode, audio frequencies
below the cuto frequency
are attenuated.
CUTOFF FREQUENCY – adjusts
the cut-o frequency of the lter.
FILTER EMPHASIS – adjusts
the amount of volume level
boost (resonance) given at the
cut-o frequency.
AMOUNT OF CONTOUR – adjusts
the amount of frequency shift
given to the cuto frequency.
(37) CUT CV (INPUT) – allows
connection of a control voltage to
control the cuto frequency.
(38) FC GATE (INPUT) – allows an
external trigger voltage to be
applied to trigger the lter contour.
(39) FILT CONT (OUTPUT) – outputs
the lter contour.
(40) LC GATE (INPUT) – allows
an external trigger voltage
to be applied to trigger the
loudness contour.
(41) LOUD CONTOUR (OUTPUT) –
outputs the loudness contour.
Output Section
(42) A-440 – use this to turn on an
output tuning signal of 440 Hz
concert pitch. This switch can also
be used to enter various modes
during turn-on (see the Getting
Started section of this manual for
more details).
(43) POWER – this LED shows
when power is applied and the
synthesizer is turned on.
(44) VOLUME – adjust the
overall volume level of the
synthesizer output.
(45) VOLUME (HEADPHONE) – adjust
the overall volume level of the
PHONES output.
(46) PHONES – connect your
headphones to this 3.5 mm
TRS output. Make sure the
headphone volume is turned down
before putting on headphones.
(47) ON – use this to quickly turn on
or Mute the main audio output
of the synthesizer.
(48) LOUD CV (INPUT) – allows
connection of an external
control voltage to control the
Loudness Contour.
(49) MAIN (OUTPUT) – use this 3.5
mm TRS connection to output
the main audio output. Typically
it is patched to an audio input of
the MODEL D or the audio inputs
of other modular synthesizer
equipment. If you are using the
MODEL D in a Eurorack, then this is
the main output, as the rear panel
output connectors are not used.
Rear Panel
(50) MAIN OUTPUT – connect these
¼" TRS outputs to the inputs
of your external equipment as
follows (note that they are both
Mono, and not left/right):
LOW – this instrument-level
mono output can connect to the
instrument-level inputs of guitar
ampliers or mixers for example.
HIGH – this line-level mono
output can connect to the line-
level inputs of mixers, keyboard
ampliers, or powered speakers
for example.
(51) MIDI CHANNEL – these 4 switches
allow you to set the MIDI Channel
number from 1 to 16 (see the table
on page 15). The MIDI channel
can also be changed using MIDI
SysEx commands, as shown in
the MIDI SysEx tables later in
this manual. (This method is used
when the MODEL D is housed in a
Eurorack, and these switches are
no longer present.)
(52) POWER – turn the synthesizer
on or o. Make sure all the
connections are made before
turning on the unit.
(53) DC INPUT – connect the supplied
12V DC power adapter here.
The power adapter can be plugged
into an AC outlet capable of
supplying from 100V to 240V at
50 Hz/60 Hz. Use only the power
adapter supplied.
MODEL D Controls