National SB-32
¥ 30,000 (around 1968)
Commentary
This speaker system is designed with an emphasis on listening as well as theory.
A 25 cm cone type woofer is installed in the low range.
This unit is designed to show excellent low-frequency characteristics when installed in a small cabinet. By using a newly developed roll edge made of special cloth for the edge part, it is strong even in large amplitude and has low fo and good low-frequency reproduction with good damping characteristics.
It is equipped with a 9 cm cone type squaker in the middle range and a 5 cm cone type tweeter in the high range.
The enclosure is a closed bookshelf type.
Unlike conventional closed-type enclosures, the use of screws is minimized and a special integrated structure improves the degree of sealing. Each unit is also sealed with putty after being attached to a baffle plate to prevent air leakage.
The front net is removable.
Model Rating
Method | 3-Way, 3-Speaker, Airtight Type, Bookshelf Type |
Unit | For low band : 25 cm cone type For Medium Range : 9 cm cone type For high-pass : 5 cm cone type |
Frequency characteristic | 35 Hz to 20 kHz |
Crossover frequency | 1.3 kHz, 6 kHz |
Impedance | 8 Ω |
Allowable input | 20W |
External dimensions | Width 298x Height 580x Depth 290 mm |
Weight | 9.0kg |