JBL 4751A
¥ 570,000 (1 unit, around 1992)
Commentary
Sound Power Series medium 3-way speaker system.
The 4751A is based on the 4750A and equipped with two 2404H biradial ring radiators for high frequencies.
Equipped with 2 30 cm cone type woofer 2206H in the low range.
In addition, a horn type unit that combines a compression driver 2445J using a 10 cm diameter titanium diaphragm and a flat front biradial horn 2380A is installed in the middle area.
The enclosure uses a wedge-shaped design that allows multiple side-by-side clusters, extending the coverage by 30 degrees horizontally for each additional enclosure.
It can also be used with sub base systems 4745A, 4748A, 4785A, and 4788A.
The 4751A uses a tri-amp drive system.
In addition, by inserting the optional crossover network N4751AP for middle and high frequencies (sold separately), it is possible to change to a bi-amplifier drive system in which low frequencies and middle and high frequencies are separated.
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Model Rating
| Method | 3-way, 5-speaker, bass reflex system | ||
| Unit | For low band : 30 cm cone type (2206H) x2 For Middle Range : Horn Type (2445J + 2380A) For High Range : Horn Type (2404H) x2 |
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| Playback frequency band | 32 Hz to 20 kHz -10dB | ||
| Output sound pressure level |
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| Allowable input | L : 1,200W (AES Standard 60 to 600 Hz) M : 150W (continuous program) H : 40W (continuous program) |
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| Crossover frequency | 1.2 kHz, 7 kHz (recommended value) |
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| Directional characteristic (-6dB) | H90 ° xV40 ° | ||
| Impedance | L : 4 Ω M : 16 Ω H : 16 Ω |
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| Input / output connector | Neutrik NL8MPRx2 | ||
| External dimensions | Width 620x Height 996x Depth 440 mm | ||
| Weight | 65kg |
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