CORAL 6A-70
¥ 8,000 (1 unit, around 1980)
Commentary
A70 series 16 cm cone type full-range speaker unit.
The cone paper has been given a hardness treatment unique to Coral to improve its mass and elastic modulus. In addition, a dome radiator using super duralumin is mounted in the center of the cone.
The edge uses a corrugation edge coated with a special damping agent.
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Model Rating
| Type | 16 cm cone type full range unit |
| Nominal impedance | 8 Ω |
| Program source input | 40W |
| Lowest resonance frequency | 45Hz |
| Playback frequency band | 45 Hz to 20 kHz |
| Output sound pressure level | 91dB/W/m |
| Magnetic flux density | 10,500gauss |
| Effective vibration radius (a) | 6.55cm |
| Equivalent mass of vibration system (mo) | 7.0g |
| Qo | 0.36 |
| Weight | 1.85kg |
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