| Synth Name: | Opus 3 |
| Synth Manufacturer: | Moog |
| Dates: | 1980 |
| Measurements: | Height 5.625", Depth 14.9375", Width 29.75" |
| Polyphony: | full (paraphonic) |
| Timbrality: | 1 part |
| Oscillator: | 1 (divide-down) |
| Lfo: | Saw Up, Saw Down, Square, Triangle |
| Synthesis Type: | Analog Subtractive[1] |
| Filter: | 24dB Slope (4-pole), Band Pass, High Pass, Low Pass, Resonance |
| Attenuator: | Attack, Decay, Sustain, Release |
| Aftertouch: | No |
| Velocity: | No |
| Memory: | None |
| Fx: | Chorus |
| Keyboard: | 49 key |
| Left Control: | Pitch wheel |
| Ext Control: | CV in, out |
The Opus 3 is an analog 49-key[2] synthesizer, and designed by Herbert A. Deutsch from Hofstra University. He also wrote the manual for the synthesizer. It was released in 1980 by Moog. The sounds are in three categories, strings, brass and organ sounds, all having their own filter apart from the organ section.
The Opus 3 features stereo outputs and can be programmed to use the panning effect.[3]
The Opus 3 is mainly known for its electronic organ sounds; it also produces strings and brass sounds.