A4A/MR94
| Brand | Altec Lansing, Altec |
| Series | Voice of the Theatre |
| Function | Speaker |
| Produced | 1980 |
| Country | United States |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Dimensions | 208.3 × 279.4 × 100.3 cm (W × H × D) |
| Weight | 632lbs |
| Frequency Response | 40Hz-15kHz |
| Treble | 24"x28" Constant Directivity Horn (Altec MR94, Altec 288-16K) |
| Midrange/Bass | 15" Paper Cone (x2) (Altec 515E) |
| Impedance (Nominal) | 16Ω |
| Crossover Frequency | 500Hz (Altec N500F) |
| Dispersion (Horizontal) | 90° |
| Dispersion (Vertical) | 40° |
| Enclosure Type | Front-Loaded Horn, Bass Reflex (Altec 210) |