National SB-123
¥ 58,000 (1 unit, around the late 1960 s?)
Commentary
A backload horn type speaker system.
It is equipped with a 30 cm cone woofer in the low range, two 16 cm cone scokers in the middle range, and a 6.5 cm cone tweeter in the high range.
The enclosure uses a backload horn.
Model Rating
Method | 3-way, 4-speaker, back-load horn system, floor type |
Units Used | For Low Band : 30 cm Cone Type (12P-L1S) For Medium Range : 16 cm Cone Type (EP-60MA) x2 For High Range : 6.5 cm Cone Type (HT-37S) |
Allowable input | 20W |
Impedance | 12 Ω ~ 16 Ω |
Crossover frequency | 400 Hz, 4 kHz |
External dimensions | Width 750x Height 1095x Depth 400 mm |
Weight | 38kg |