ALTEC LANSING 291-16A
¥ 127,000 (1 unit, released in 1970)
¥ 71,300 (1 unit, around 1976)
Commentary
Driver unit developed for large sound output in theaters, etc.
291-16A uses a newly developed Symbitik diaphragm based on 288D.
This diaphragm uses an assembly of a polymid-film and an aluminum alloy diaphragm, and has a wide frequency range and excellent transient response. Moreover, the allowable input is approximately twice that of the conventional model.
The voice coil uses an edge-wise wound flat aluminum ribbon voice coil.
Model Rating
| Type | Driver unit |
| Frequency characteristic | 500 Hz to 16 kHz |
| Sound pressure level | 131 dB SPL at 40W |
| Impedance | 16 Ω |
| Rated input | 40W |
| Magnetic flux density | 18,500gauss |
| Recommended crossover frequency | 300 Hz, 500 Hz |
| Voice coil diameter | 7.1cm |
| Compatible Horn and Network | 311-60, 311-90, 1505B, etc. N-500F network, etc. |
| External dimensions | Diameter 165x Depth 124 mm |
| Weight | 9.1kg |