Moog Multimoog (1978–1981)
A 44-key performance synth that put aftertouch where your fingers could actually feel it.
Overview
The Moog Multimoog, also called the Model 2040 in some documentation, came out in 1978 at roughly $1,495. It was Moog Music's answer for the player who wanted something more expressive than a preset machine and more portable than a modular rig. It wasn't the cheapest instrument around, but it wasn't a bank loan either. It also had a trick almost nothing else at the time could claim: a keyboard that responded to pressure after the initial strike. The Multimoog is a duophonic synthesizer, so it sounds two notes at once. It has three oscillators and a 24 dB/octave low-pass filter, all in a compact frame.
Production ran from 1978 through 1981. Owners and collectors call it a "nice compact instrument," and it earned a reputation as a live-performance workhorse. The touch-sensitive keyboard was the headline feature. Modern Recording (July 1978, p.47) pitched it as an instrument that "feels what you play." The aftertouch let pressure affect filter cutoff, modulation amount, and pitch, so a player could bend a note or open the filter without lifting a finger from the keys.
The Multimoog sits in an odd spot in the Moog catalog. It's not a Minimoog replacement and it's not a Polymoog. It's a performance synth that falls between the two. It has no MIDI, which fits its era, but it does have a microprocessor-controlled memory system that was forward-thinking for 1978.
Key Features
Polyphonic Aftertouch Keyboard
The 44-note keyboard is the defining feature. It's full-sized and has polyphonic aftertouch, meaning each key transmits its own pressure independently. That was unusual for synthesizers of this era. Press harder after striking a key and the pressure affects filter cutoff, modulation amount, and/or pitch, depending on how the modulation is routed. High Fidelity (July 1979, p.66) noted that "virtually any section of the instrument" could be controlled from the keyboard, wheel, ribbon, or another control input. Live players could get filter sweeps and pitch bends driven directly by their fingers.
Three Oscillators with Flexible Routing
There are three oscillators. Oscillator 1 can work as a modulation source, so it can serve as a third audio oscillator or as a control signal. Oscillator 2 has a frequency range switch, a variable waveshape control, and fine tuning. Oscillator 3 has frequency range selection and switches between square and sawtooth waveforms. The voice architecture supports both high-note priority and low-note priority, which decides how the two voices respond when more than two notes are held. That made the Multimoog useful for both lead lines and bass parts.
24 dB/Octave Low-Pass Filter
The filter is a classic Moog design, a 24 dB/octave low-pass unit, and it's the sonic backbone of the instrument. It can go from warm and round to screaming and aggressive. The aftertouch can be routed to the filter cutoff, so a player can play a note softly and then lean into it to open the filter up. That became a signature move for Multimoog players.
LFO with Envelope Duties
The built-in LFO covers 0.1 Hz to 15 Hz with triangle, sawtooth, and square waveforms. That's wide enough for slow filter sweeps and for audible frequency-range effects. The LFO can also be used as an envelope. You don't see that on every synth of this vintage, and it adds programming options without extra modules or outside gear.
Six Patch Memories with Tape Interface
The Multimoog had a microprocessor-controlled six-memory preset system. You could store parameters for lead and bass sounds in six memory locations and recall them during a performance. The tape interface let you save and load patches to cassette tape, the standard storage method before MIDI and sysex. It's primitive by modern standards, but in 1978 it was innovative for a keyboard of this class. The memory stored the essential parameters, so a player could switch between a lead and a bass patch without twisting knobs mid-song.
Noise Generator and Three-Channel Mixer
A noise generator provides both white and pink noise, and the noise output can be patched into the mixer. The mixer has three channels, so there are three signal inputs to blend. That's where the oscillators get balanced against the noise source. It's a straightforward, hands-on way to shape sound.
Performance and Playability
Modern Recording's July 1978 coverage (p.47) described the keyboard as responding to touch, with the modulation wheel adding a "third hand" to the sound. The ribbon controller, mentioned in High Fidelity's July 1979 review (p.66), was among the control points that could drive the instrument, and the modulation wheel could move the music in several directions simultaneously.
The duophonic voice architecture gives you two notes at once. That's more than a monophonic synth and less than a true polyphonic instrument. For lead and bass work it's plenty, and the high-note and low-note priority modes let you decide how the voices behave when you hold multiple keys. The two-voice setup combined with the aftertouch made the Multimoog well suited to expressive soloing.
Historical Context
When the Multimoog arrived in 1978, synthesizers were in transition. The Minimoog had set the template for the performance synth, but players wanted more expression, more memory, and more flexibility. The Multimoog offered an aftertouch keyboard and patch memory while keeping the classic Moog sound. It was released while Moog was exploring new territory.
Sound on Sound described it as a "nice compact instrument." The aftertouch implementation was unusual for the time, and it remains one of the Multimoog's most celebrated features among collectors and players.
Collectibility and Market Position
Its duophonic voice architecture and aftertouch keyboard give it a distinct personality that sets it apart from other Moog instruments of the period. The lack of MIDI is a limitation for modern studio integration, but for players who want a hands-on, expressive instrument, the Multimoog delivers something that few modern synths can replicate.
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