CORAL 8F-60
¥ 10,500 (1 unit, date unknown)
¥ 12,000 (1 unit, around 1980)
Commentary
F60 series 20 cm cone type full range unit that uses a powerful magnetic circuit.
Corn paper is made with carefully selected pulp mixed with chemical fibers and then treated with a newly developed Coral hardness treatment. This allows for both rigidity and moderate internal loss, and expands the piston range.
A dome-shaped super duralumin radiator for the high range is installed in the center of the cone paper to improve the high range characteristics and directivity.
The magnetic circuit uses a large ferrite magnet with an outer diameter of 160 mm.
Aluminum alloy die-cast frame is used for the frame to prevent unnecessary resonance.
It can be used for enclosure of closed system and bass reflex system.
It also recommended the use of a Coral bass-reflex enclosure kit EK-45 and a baffle plate 45B-8F designed specifically for 8F-60.
It was recommended to use an inner volume of 90 liters in case of using, and around 180 liters when using 4 tubes.
Model Rating
Type | 20 cm single cone, full range speaker |
Impedance | 8 Ω |
Playback frequency range | Fo ~ 20 kHz |
Lowest resonance frequency | 35Hz |
Output sound pressure level | 93dB |
Program input | 40W |
Magnet weight | 1.23kg |
Total flux | 175,000maxwell |
Baffle opening diameter | 200 mm (Front Mounting) |
Weight | 5.2kg |