JBL 4770A
¥ 550,000 (1 unit, around 1992)
Commentary
Sound Power Series large 2-way speaker system.
Two 38 cm cone type woofer 2226H are installed in the low range.
In the high range, a horn type unit is installed that combines a compression driver 2445J using a 10 cm diameter titanium diaphragm with a flat-front biradial horn 2380A.
The wedge-type enclosure can be arranged horizontally into a cluster, extending coverage by 30 degrees horizontally for each additional enclosure.
It is optimum to be used together with sub base system 4788A.
Bi-amplifier drive system is adopted.
.jpg)
Model Rating
| Method | 2-way, 3-speaker, bass reflex system | ||
| Unit | For low band : 38 cm cone type (2226H) x2 For High Range : Horn Type (2445J + 2380A) |
||
| Playback frequency band | 30 Hz to 20 kHz -10dB | ||
| Output sound pressure level |
|
||
| Allowable input | L : 1,200W (AES Standard 50 to 500 Hz) H : 150W (continuous program) |
||
| Crossover frequency | 800 Hz (recommended) | ||
| Directional characteristic (-6dB) | H90 ° xV40 ° | ||
| Impedance | L : 4 Ω H : 16 Ω |
||
| Input / output connector | Neutrik NL8MPRx2 | ||
| External dimensions | Width 750x Height 1,250x Depth 533 mm | ||
| Weight | 110kg |
.jpg)
.jpg)