BOZAK B-199A
¥ 29,700 (1 unit, around 1966)
Commentary
This 30 cm cone type woofer unit was used for the low range of the bozak speaker system at that time.
Felted paper cone with wool embedded in pulp is used for the diaphragm to obtain light weight, hard and high compliance as well as low distortion bass.
An Alnico V magnet is used for the magnetic circuit, and an aluminum ribbon coil with a diameter of 4 cm is used for the voice coil.
Model Rating
| Type | 30 cm Cone Woofer |
| Frequency characteristic | 40 Hz to 4.5 kHz |
| Impedance | 8 Ω |
| Rated input | 20W |
| Lowest resonance frequency | 40Hz |
| Voice coil | Diameter 4 cm, aluminum ribbon |
| Magnet | Alnico V |
| Magnetic flux density | 13,000gauss |
| External dimensions | Diameter 315x Depth 150 mm |
| Weight | 4.1kg |