Omega II
| Brand | STR |
| Manufacturer | Sound Technology Research, STR, Inc. |
| Function | Speaker |
| Produced | 1975 |
| Country | United States |
| Form Factor | Floorstanding |
| Signal Path | Analog Hardware |
| Dimensions | 80.6 × 80.6 × 40 cm (W × H × D) |
| Weight | 150lbs |
| Frequency Response | 23Hz-18kHz ±3dB, 22Hz-21kHz ±5dB |
| Treble | 0.75" Dome |
| Treble (Rear) | Piezo |
| Midrange | 8" Paper Cone |
| Bass | 12" Paper Cone (x2) |
| Sensitivity (100Hz) | 93dB/W/m |
| Impedance (Nominal) | 4Ω |
| Crossover Frequencies | 100Hz, 3kHz |
| Recommended Amplifier Power | 20-250W |
| Power Handling | 250W |
| Enclosure Type | Sealed |
| Finish | Walnut |
| MSRP (1975) | $649 |