Technics EAS-30PL100
¥ 86,000 (1 unit, around 1974)
Commentary
A 30 cm cone woofer with reduced distortion and improved characteristics.
The distortion has been greatly reduced by 1/5 to 1/100 in the low band (200 Hz or less) and the middle band (500 Hz to 2 kHz), which were highly distorted by conventional units, and by 1/3 to 1/5 in the middle low band (200 Hz to 500 Hz).
Model Rating
Type | Cone type woofer unit |
Aperture | 30cm |
Cone effective diameter | 246mm |
Effective mass of vibration system | 53.4g (not including radiant mass) |
Rated input | 60W |
Max Input | 100W |
V. C impedance | 8 Ω (DC Resistance 5.3 Ω) |
Frequency characteristic | 25 Hz to 2 kHz |
Lowest resonance frequency | 18 ± 2 Hz (Without Baffle) |
Output sound pressure level | 99dB/0.5m 93dB/m |
Qo | 0.35 |
Distortion factor | 0.07 ~ 0.2% (50 Hz ~ 2 kHz) |
Magnetic flux density | 6,500gauss |
Total flux | 58,000maxwell |
Weight | 15kg |