CORAL HD-60
¥ 5,900 (1 unit, around mid 1970 s?)
¥ 6,400 (1 unit, around 1980)
Commentary
Hard dome type super tweeter.
The diaphragm uses an ultra-thin film of 18 micron thickness super duralumin that has undergone precision heat treatment.
The voice coil uses a ribbon wire of high-conductivity aluminum alloy to reduce weight, and is edgewise wound to allow a large space occupancy in the magnetic gap.
The equalizer is a wide-spread equalizer.
Resonance is prevented by adopting a square rigid duralumin panel.
In addition, the exterior is treated with special treatment after hairline treatment to bring out the beauty of the material.
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Model Rating
| Method | Hard dome type tweeter |
| Diaphragm | 20 mm φ Hard Dome Type |
| Impedance | 8 Ω |
| Max Input | 50W (8 kHz or More, 12dB/oct. or More) |
| Sound pressure level | 96dB/W/m (unit level) |
| Playback frequency band | 8 kHz to 40 kHz |
| Crossover frequency | 8 kHz or More (12dB/oct.) |
| Magnetic flux density | 13,000gauss |
| Maximum external dimensions | Width 95x Height 95x Depth 35.4 mm |
| Weight | 0.4kg |