JBL 4311A/4311WXA
* Released in 1976
4311A : ¥ 155,000 (1 unit, around 1979)
¥ 120000 (1 unit, around 1979)
4311 WXA : ¥ 165,000 (1 unit, around 1979)
¥ 125000 (1 unit, around 1979)
Commentary
A speaker system developed for monitoring in recording studios, editing rooms, and adjustment rooms, and for outdoor recording.
A 30 cm cone Woofer 2213 is installed in the low range, and a 13 cm cone Squaker LE5-2 is installed in the middle range.
In addition, a 3.6 cm direct radiator LE25 is mounted in the high range.
Designed for hanging use, the front baffle has a layout with a woofer mounted at the top and an attenuator placed at the bottom.
There are 2 variations of the exterior finish, gray and walnut.
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Model Rating
| Method | 3-Way, 3-Speaker, Bass reflex system, Bookshelf Type |
| Units Used | Low Band : 30 cm Cone Type (2213) For Middle Range : 13 cm Cone Type (LE5-2) For High Range : 3.6 cm Cone Type (LE25) |
| Frequency characteristic | 45 Hz to 15 kHz ± 3 db |
| Directional (horizontal / vertical) | 90 ° |
| Allowable input | 40W(RMS) |
| Impedance | 8 Ω |
| Crossover frequency | 1.5 kHz, 6 kHz |
| Output sound pressure level | 91 db (New JIS) |
| Enclosure internal volume | 42.5L |
| External dimensions | Width 362x Height 597x Depth 298 mm |
| Weight | 19kg |