A9
| Brand | Altec, Altec Lansing |
| Manufacturer | Altec Lansing Corporation, LTV Ling Altec, Inc., Ling-Temco-Vought, Inc |
| Series | Voice of the Theatre |
| Function | Speaker |
| Produced | 196? |
| Country | United States |
| Model ID | A9 |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Dimensions | 121.9 × 242.8 × 61 cm (W × H × D) |
| Weight | 510lbs (Shipped) |
| Treble | 10.6"x25.3" Sectoral Horn (Altec 511B, Altec 806-16A) |
| Midrange/Bass | 15" Paper Cone (x2) (Altec 515B) |
| Crossover Frequency | 500Hz (Altec N-500-F) |
| Dispersion (Horizontal) | 90° |
| Dispersion (Vertical) | 40° |
| Power Handling | 50W |
| Enclosure Type | Bass Reflex |
| Finish | Gray |