ALTEC LANSING 411-8A
* Released in 1970
¥ 71,300 (1 unit, around 1976)
Commentary
38 cm cone type woofer unit for high compliance chair and high power input.
A large voice coil of 10 cm diameter and a 8.2 kg magnet are used for the magnetic circuit.
Combined with a large volume sealed cabinet, it is possible to play back low 16 Hz sound.
Model Rating
| Type | 38 cm cone woofer unit |
| Frequency characteristic | 20 Hz to 1 kHz |
| Lowest resonance frequency | 15 hz (listed in 1970 catalog) 18 hz (listed in 1976 catalog) |
| Impedance | 8 Ω |
| Rated input | 60W |
| Magnetic flux density | 9,300gauss |
| Recommended crossover frequency | 500Hz |
| External dimensions | Diameter 389x Depth 140 mm |
| Weight | 9.3 kg (according to 1970 catalog) 9.0 kg (according to 1976 catalog) |