National SB-15
¥ 13,500 (1 unit in late 1960 s)
Commentary
A two way floor speaker system with a compact design.
A 16 cm cone type woofer is installed in the low range.
High compliance roll edge using newly developed special fiber and cone paper with high Young's modulus are adopted to reduce strain.
A 8 cm cone type tweeter is installed in the high range.
The enclosure has a sealed structure with internal reinforcement and sealed design, and low-frequency characteristics have been improved by ensuring airtightness, which is a problem in small enclosures.
The exterior is finished with wood grain using walnut material.
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Model Rating
| Method | 2-Way, 2-Speaker, Sealed Type, Floor Type |
| Units Used | For low band : 16 cm cone type For high pass : 8 cm cone type |
| Playback frequency band | 40 Hz to 20 kHz |
| Impedance | 8 Ω |
| Output sound pressure level | 95dB(1kHz) |
| Max Input | 12W |
| Crossover frequency | 5kHz |
| External dimensions | Width 295x Height 670x Depth 230 mm |
| Weight | 7.5kg |