A5 (Rev. 2)
| Brand | Altec, Altec Lansing |
| Manufacturer | Altec Corporation |
| Series | Voice of the Theatre |
| Function | Speaker |
| Produced | 1976 |
| Country | United States |
| Form Factor | Floorstanding |
| Signal Path | Analog Hardware |
| Dimensions | 762 × 147 × 612 cm (W × H × D) |
| Weight | 75.6kg |
| Frequency Response | 30Hz-16kHz |
| Treble | 12.3"x28.1" Sectoral Horn (Altec 311-90, Altec 288-16G) |
| Midrange/Bass | 15" Paper Cone (Altec 515B) |
| Sensitivity (New JIS) | 106dB |
| Impedance (Nominal) | 16Ω |
| Crossover Frequency | 500Hz (Altec N500FA) |
| Dispersion (Horizontal) | 90° |
| Dispersion (Vertical) | 40° |
| Power Handling (Nominal) | 60W |
| Enclosure Type | Front Loaded Horn, Bass Reflex (Altec 828B) |
| MSRP (1976) | ¥655,000 |
| Notes | Crossover update |