JBL 4311
Released in 1973
4311 : ¥ 193,800 (1 unit, around 1975)
4311 wx : ¥ 205,200 (1 unit, around 1975)
Commentary
A bookshelf speaker system developed for small studios, adjustment rooms, and portable playback monitors.
A 30 cm cone Woofer 2212 is installed in the low range, and a 13 cm cone Squaker LE5-2 is installed in the middle range.
A 3.6 cm cone type tweeter LE25 is mounted in the high range.
The enclosure features a bass reflex design and a back cavity on the back of the Skoker unit to prevent rear interference from the woofer.
Equipped with a continuously variable control that can adjust the middle and high ranges independently.
There are 2 variations, gray finish and walnut finish.
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Model Rating
| Method | 3-Way, 3-Speaker, Bass reflex system, Bookshelf Type |
| Units Used | Low Band : 30 cm Cone Type (2212) 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 |
| Allowable input | 40W (continuous program) |
| Impedance | 8 Ω |
| Sound pressure level (new JIS) | 91dB |
| Crossover frequency | 1.5 kHz, 6 kHz |
| Enclosure internal volume | 42.5liters |
| External dimensions | Width 360x Height 600x Depth 300 mm |
| Weight | 19kg |