Technics EAS-20PW55
¥ 6,800 (1 unit, around 1966)
Commentary
20 cm double cone type speaker unit.
A unique equalizer ball (vertical equalizer) is mounted on the front of the high-frequency cone. It uses the diffraction of sound waves to align the wave surface and flatten the high-frequency characteristics.
A unique UL edge is used for the edge to achieve high compliance.
By using high-purity aluminum wire for the voice coil, the high-frequency reproduction limit is extended.
Model Rating
Type | 20 cm double cone type speaker unit |
Allowable input | 10W |
V. C impedance | 8 Ω |
Playback frequency | 20 Hz to 20 kHz |
Lowest resonance frequency | 25 Hz to 40 Hz |
Output sound pressure level | 100dB |
Qo | 0.48 at 30 Hz |
Magnetic flux density | 12,200gauss |
Total flux | 96,000maxwell |
Cone effective diameter | 160mm |
Effective mass | 15.5g |
Estimated volume | 1,200cm3 |
Weight | 2.6kg |