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.
.JPG)
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 |