Opus
| Brand | Jean-Marie Reynaud |
| Function | Speaker |
| Produced | 1981-1983 |
| Country | France |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Dimensions | 30 × 105 × 36 cm (W × H × D) |
| Frequency Response | 45Hz-22kHz |
| Treble | 19mm Dome |
| Midrange | 120mm Cone |
| Bass | 215mm Polypropylene Cone |
| Sensitivity | 88dB/W/m |
| Impedance (Nominal) | 8Ω |
| Crossover Frequencies | 600Hz, 6.3kHz |
| Crossover Slope | 18dB/Octave (Third Order) |
| Distortion (80Hz) | <1% |
| Power Handling | 80W |
| Recommended Amplifier Power | 30-200W |
| Enclosure Type | Bass Reflex |
| Enclosure Construction | 23mm Particleboard |
| Notes | Revision of the Duet |