User Manual

ManualsBrandsMoog Music ManualsSynthesizersMOOG Subsequent 37

The oscillators, lter, modulators, and other parts are connected in the most useful ways for

producing and modifying electronic signals that result in sounds. Unlike on a modular synthesizer,

many connections between the Subsequent 37’s various parts are hardwired, meaning that it is not

possible to change the routing of the pathways that connect them.

The electrical signals within a synthesizer are either audio signals or control signals, depending on

the pathway they follow. Typically, an audio signal begins with an oscillator and passes through the

lter on its way to the audio output. Control signals are used to change things, like the pitch, timbre,

waveshape, or loudness of an audio signal.

Any time a signal controls something, no matter whether it’s controlling an audio signal or another

control signal, we say that it modulates it. In synth-speak, you could say that a steering wheel

modulates a car’s direction and the accelerator pedal modulates its speed. When you play the

Subsequent 37’s keyboard, the key you press modulates the instrument’s pitch. You can modulate lter

cutoff by turning a knob manually, or you can apply a control signal from a low-frequency oscillator or

envelope to modulate it electronically. It’s worth noting that a control destination can be modulated by

more than one control source.

The diagram below illustrates how the Subsequent 37 generates sound. It shows the ow of audio

signals, represented by solid lines, and control signals, represented by dotted lines.

You can control the Subsequent 37 using control voltages and MIDI commands. When the Subsequent

37 receives either a control signal from the onboard keyboard or a Note On command from an external

MIDI source, it responds by sending a gate signal to trigger the envelopes and a control voltage (CV)

to control oscillator pitch. The envelopes respond by sending control signals to the amplier and lter.

Every knob and button on the Subsequent 37 transmits MIDI data (when in NRPN Mode). This

functionality is useful for recording your knob turns and button presses into a computer-based DAW,

as well as for controlling external devices using the Subsequent 37’s front-panel controls. All the

settings that make up a patch are called its parameters, which is simply another name for settings.

VCA

SUB 1

VCO 1

VCO 2

NOISE

EXT. AUDIO

FEEDBACK

MIXER

EXT

AUD

H. PHONE

AUDIO

OUT

VCO 1

SUB

VCO 1

WAVE

VCO 2

WAVE

NOISE

CORE

VCO 1

CORE

VCO 2

CORE

FDBK/EXT

AUDIO LVL

VCO 1

SUB LVL

VCO 1

LVL

VCO 1 MOD

& CNTRL

PITCH 1 CV

& MOD

NOTE

SYNC

PITCH 2 CV

& MOD

OSC 1-2

SYNC

FILTER EG

CV & MOD

VCA EG

& CV

RESO-

NANCE

VCO 2 MOD

& CNTRL

VCO 2

LVL

NOISE

LVL

LADDER

FILTER

FILT SLOPE

SELECT

MULTIDRIVE

MULTI-

DRIVE