Technics EAS-30PL40NA/NB
¥ 15,000 (1 unit, around 1966)
Commentary
30 cm cone shaped woofer unit.
The cone paper is made of a material with high Young's modulus and high internal loss. This reduces the unevenness of the frequency characteristics and provides ideal sound pressure reduction at 1 kHz or higher.
The difference between EAS-30PL40NA and EAS-30PL40NB is that the V. C impedance is 8 Ω for NA and 16 Ω for NB.
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Model Rating
| Type | 30 cm Cone Woofer |
| Allowable input | 40W |
| V. C impedance | 8 Ω (EAS-30PL40NA) 16 Ω (EAS-30PL40NB) |
| Playback frequency | 15 Hz to 1 kHz |
| Lowest resonance frequency | 15 Hz to 20 Hz |
| Cone effective diameter | 230mm |
| Output sound pressure level | 98dB |
| Magnetic flux density | 9,500gauss |
| Total flux | 250,000maxwell |
| Weight | 6kg |