National SB-550N
¥ 6,000 (1 unit, released in December 1978)
Commentary
A drone cone speaker system developed for TV sound multiplex broadcasting.
The unit is equipped with a 16 cm diameter full range cone type unit.
In addition, low-frequency playback is improved by installing a 16 cm Doron Cone with the same aperture.
It is dark brown color, and the see-through net of the same color is used for the sub RUNNET.
Model Rating
| Method | 1-way, 1-speaker, passive radiator system ・ Bookshelf type |
| Units Used | For all bands : 16 cm cone type Others : 16 cm Doron Corn |
| Max Input | 10W(Peak) |
| Output sound pressure level | 91dB/W/m |
| Impedance | 8 Ω |
| External dimensions | Width 280x Height 500x Depth 190 mm |
| Weight | 3.6kg |
| Attachment | Wall mount Speaker cord (3.5m) End treated core wire |