Moog Polymoog Keyboard polyphonic synth


Moog Polymoog Keyboard synthesiser


Once again, I am at a loss for words. This is the keyboard (preset) version of the awesome Polymoog and has little except curio value now, although it has had something of a resurgence in parallel with the renewed popularity of Gary Numan – the Vox Humana sound from the Polymoog Keyboard was a staple of his work in the ’80s. Our instrument was bought new by a friend around 1980. He sold an inherited house and had just enough money from the proceeds to buy this and a Korg 800DV. Remember, the value of your investment can go down as well as up…….

The following information is taken from a full-range brochure of the age, with some dodgy drawings of Wakeman, Emerson, Banks, etc on the cover. If I get it together I’ll scan some of the highlights for any trainspotters out there.

The Polymoog keyboard is musically engineered to give you the tonal variety and breadth of expression of a primary keyboard. Fourteen programmed voices give you a variety of characteristic sounds from one keyboard.

The Polymoog Keyboard is velocity sensitive. It allows the same kind of intuitive touch sensitivity as the piano. An individual voltage controlled filter and voltage controlled amplifier for each key lets you play without triggering problems.

Polymoog polyphony is not restricted-either by the number of notes playable simultaneously or by the size of the 71 note keyboard (er….not sure how they work that one out? I would have thought 71 keys would be the maximum playable, n’est pas?).

Synthesizer tonal variety goes right down to voltage controlled oscillators.

Primary keyboard musicality is a keyboard that feels your fingers.

Get them both together in the Polymoog Keyboard.


14 pre-programmed voices
Vox Humana, String Chorus I, String Chorus II, Elec piano, Piano, Honky-tonk piano, Clav, Harpsi, Brass solo, Brass chorus, Pipe organ, Rock organ, Vibes, Fun.
Multi-oscillator output for chorus effects.
Totally polyphonic touch sensitive keyboard.
Studio quality signal/noise ratio.
Monophonic synthesizer interface connections.
Stereo output configuration.
Variable modulation rate and amount controls.
Variable attack time.
Filtered lower keyboard output with level and frequency controls.
Foot control of pitch, sustain, trigger mode, and volume with optional Polypedal.

Sound Sources.
Number of oscillators: 2 (71-pitch ranks; slaved to precision VCO).
Articulators: 142 (VCA and VCF for each key).
Frequency range: E1 – D7 71 note keyboard: Pitch ribbon and external frequency control give maximum of ± 1 octave pitch control.
Pitch stability: ±0.2% (± 1/3 cent).
Pitch ribbon range: ±7 semitones minimum.
Fine tune range: ±1 semitone.
Beat tune range: ± 1/4 semitone.

Number: 14 programmed.
Voice modification controls: modulation rate and amount, octave balance (3), attack (sustaining voices).
Bass: 14 programmed: variable cutoff frequency and separate gain controls.
Main: Nominal output level 0 dBm (0.7 volts); output impedence less than 3K.
Bass: Nominal output level 0 dBm (0.7 volts); output impedence less than 3K (plugging into bass output automatically isolates bass signal from main output).

Control Outputs
Keyboard control: Scale adjustable from 0.9 to 1.1 volts/octave with rear panel scale pot: range adjustable ± 1 1/2 semitones.
Trigger S trig (+15 to 0.0 VAC): single/multiple determined by trig mode switch or footswitch.
Keyboard control voltage: 30 dB control with 0 to 5 VAC input inpedence- 200 K.
Filter: 0.5 volts / octave input inpedence – 1 mag (for BRASS voices).
Trigger: Switch to ground gives single trigger mode with trig switch in multiple position.
Pitch: 0.7 volts per octave.
Sustain: Switch to ground gives sustain.
Accessory power outputs: ±15, +5VDC at 100 ma available for each supply voltage.