CORAL BX-1500
¥ 53,000 (1 unit, released in 1969)
Commentary
This 6-way bookshelf speaker system is the top model of the High Power Series.
A 38 cm cone type woofer is installed in the low range.
By combining a powerful magnetic circuit using a large magnet, a large diameter voice coil of 100 φ, Coral's unique long travel voice coil and skybar edge, it realizes Dainyu force, high efficiency, low distortion, and low fo.
Equipped with a 16 cm cone scoker for the middle and low range, a 12 cm cone scoker for the middle range, and a horn scoker for the middle and high range.
The cone squaker uses a dome radiator made by Super Duralumin to improve the connection to the high range. In addition, the 12 cm cone squaker uses a completely sealed structure in the frame to eliminate the influence of the back pressure of the woofer.
The Horn Squaker is used for the BX-700 and BX-710 and uses a film diaphragm.
A 9 cm cone type tweeter is installed in the high range.
The cone tweeter uses a voice coil with a strong magnetic circuit and aluminum wire to enable large input and high efficiency.
Two horn type super tweeters are installed in the super high range.
A film diaphragm is used for the diaphragm and the weight reduction of the vibration system enables high-frequency reproduction at 25 kHz.
A constant impedance type level control is provided for the middle and high frequencies.
The enclosure uses a bass reflex method and has a walnut polyurethane finish on the exterior.
The front grill uses a reversible grill a reversible grill of Sa RUNNET which is arranged with a handmade grating and aluminum sash, and there are 3 combinations including metal baffle.
The rear terminal is equipped with a jack that can be connected with a plug in addition to the conventional terminal.
The switch on the rear panel allows three independent multi-amp drives : low, mid-range (mid-low to mid-high range), and high range (high to ultra high range).
In multi-amplifier mode, the network and attenuator are disconnected, so a channel divider and amplifier for each band are required.
Model Rating
Method | 6-Way / 7-Speaker / Bass Reflex System / Bookshelf Type | ||
Units Used | For low band : 38 cm cone type For middle and low band : 16 cm cone type For Medium Range : 12 cm cone type For Middle and High Area : Horn Type For high range : 9 cm cone type For Super High Range : 2 horn types |
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Impedance | 8 Ω | ||
Playback frequency band | 20 Hz to 25 kHz | ||
Max Input | 150W | ||
Output sound pressure level | 102dB/W | ||
Crossover frequency | 800 Hz, 1 kHz, 2 kHz, 5 kHz, 7 kHz | ||
Level control | Independent middle and high frequencies | ||
External dimensions | Width 497x Height 697x Depth 395 mm | ||
Weight | 37kg | ||
Each band in unit drive (multi-amplifier drive) | |||
Low pass | Mid-range | High range | |
Frequency characteristic | 25 Hz to 2.5 kHz | 700 Hz to 10 kHz | 4 kHz to 25 kHz |
Used frequency band | 25 Hz to 1.5 kHz | 800 Hz to 10 kHz | 5 kHz to 25 kHz |
Impedance | 8 Ω | ||
Cutoff attenuation | 12dB/oct. or more | ||
Amplifier output | 150W | 100W | 80W |