Technics EAS-20PX70
¥ 6,600 (1 unit, around 1972?)
¥ 8,500 (1 unit, around 1974)
Commentary
This is a 2-way coaxial type unit that uses a dome tweeter for the treble part.
A 20 cm cone type woofer is used for the low range, and a dome type tweeter using titanium diaphragm is used for the high range.
Interference between the tweeter and woofer is suppressed by a spherical baffle placed around the domed tweeter.
EPT edge is used for the edge of the woofer to reduce distortion.
Model Rating
Type | 2-way coaxial speaker unit |
Aperture | 20cm |
Cone effective diameter | 170mm |
Max Input | 40W |
V. C impedance | 8 Ω |
Frequency characteristic | 30 Hz to 20 kHz |
Lowest resonance frequency | 25 Hz to 45 Hz |
Output sound pressure level | 100 dB (Old Catalog) 94 dB (1974 catalog) |
Qo | 0.6 |
Magnetic flux density | Low pass : 10,500 gauss High : 11,000 gauss |
Total flux | Low : 160,000 maxwell High : 40,000 maxwell |
Weight | 3.7kg |