YAMAHA NS-430
¥ 15,000 (1 unit, around 1974)
Commentary
Bookshelf type speaker designed for low cost and high efficiency.
A 20 cm roll-edge type cone woofer JA-2004 is mounted in the low range.
A copper cap is attached to the center pole to reduce 3rd-harmonic distortion and enable clear low-frequency playback. In addition, the connection with the tweeter is made smooth by suppressing the rise in impedance.
The high-frequency band is equipped with a hard-dome type tweeter JA-0551 with a diaphragm made of cloth shaped with thermosetting resin.
In the network section, constant values are determined through repeated listening and measurement, and low-frequency playback is improved by using an MP capacitor with superior characteristics.
The enclosure uses a bass-reflex structure.
Model Rating
| Method | 2-Way, 2-Speaker, Bass Reflex System, Bookshelf Type |
| Units Used | For Low Band : 20 cm Cone Type (JA-2004) For High Range : Dome Type (JA-0551) |
| Playback frequency band | 50 Hz to 20 kHz |
| Crossover frequency | 3.5kHz |
| Output sound pressure level | 93dB/W/m (New JIS) |
| Maximum allowable input | 15W |
| External dimensions | Width 343x Height 540x Depth 259 mm |
| Weight | 10kg |