JBL 4771A
¥ 650,000 (1 unit, around 1992)
Commentary
Sound Power Series large 2-way speaker system.
The 4771A is based on the 4770A with two additional biradial ring radiators 2404H for high frequency.
Two 38 cm cone type woofer 2226H are installed in the low range.
In addition, a horn type unit which combines a compression driver 2445J using a 10 cm diameter titanium diaphragm with a flat front biradial horn 2380A is installed in the middle area.
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.
Tri-amp drive system is adopted.
In addition, it can be switched to bi-amplifier drive by dividing into low range and high range by inserting the crossover network N4751AP for high and high range as an option.
.jpg)
Model Rating
| Method | 3-way, 5-speaker, bass reflex system | ||
| Unit | For low band : 38 cm cone type (2226H) x2 For Middle Range : Horn Type (2445J + 2380A) For High Range : Horn Type (2404H) x2 |
||
| Playback frequency band | 30 Hz to 20 kHz -10dB | ||
| Output sound pressure level |
|
||
| Allowable input | L : 1,200W (AES Standard 50 to 500 Hz) M : 150W (continuous program) H : 40W (continuous program) |
||
| Crossover frequency | 800 Hz, 7 kHz (recommended value) |
||
| Directional characteristic (-6dB) | H90 ° xV40 ° | ||
| Impedance | L : 4 Ω M : 16 Ω H : 16 Ω |
||
| Input / output connector | Neutrik NL8MPRx2 | ||
| External dimensions | Width 750x Height 1,250x Depth 533 mm | ||
| Weight | 115kg |
.jpg)
.jpg)