FEATURES:
Uniform horizontal onand off-axis frequency response Precise horizontal and vertical pattern control
Full horn loading to 500 Hz Flat front and compact size Lightweight construction 49 mm (2 in) throat entry
The JBL 2382A Bi-Radial™ horn¹ is designed for flush cabinet mounting or compact cluster applications. The 2382A has a nominal 120° horizontal x 40° vertical pattern. The horn provides uniform onand
off-axis frequency response |
from 500 Hz to beyond |
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16 |
kHz in the horizontal plane and 2 |
kHz to 16 |
kHz |
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in |
the vertical plane, with |
uniform |
directivity |
above |
2 kHz. The horn’s vertical mouth dimension (just |
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slightly larger than the compression driver used to |
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drive the horn) allows very |
compact single and multi- |
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ple |
horn/driver systems to |
be put |
together. Should |
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tighter vertical pattern control be required below 2 kHz, two or more horns may be stacked vertically in line.
The exceptionally consistent horizontal dispersion eliminates the midrange narrowing and high frequency beaming problems typically associated with
conventional horn designs. Additionally, the predictable performance of the 2382A greatly simplifies cluster design. The need for horn overlapping is minimized, and lobing and comb filter effects are virtually eliminated .
Computer-aided design techniques were used to derive the horn contours in both horizontal and vertical planes. Using sidewall contours based on a polynomial power series equation, the horn design yields smooth response, low distortion, and consistent coverage over defined solid angles. The design avoids
the performance disadvantages of horns that feature sharp flare transitions and flat sidewalls. To ensure light weight, superior strength, and freedom from resonances, the horn is made of molded structural foam.
The 2382A will accept the 49 mm (2 in) throat 2441, 2445, or 2485 compression driver. With the addition of the 2327 adapter, the horn will also accept the
25 mm (1 in) throat 2425 driver.
¹U.S Patent NO 4,308 . 932 Foreign patents pending
SPECIFICATIONS:
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Horizontal |
Coverage: |
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Angle Degrees ( – 6 dB): |
120 (+ 10, – 20) |
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Average Range: |
500 Hz – 16 kHz |
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Vertical |
Coverage: |
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Angle Degrees ( – 6 dB): |
40 ( + 26, – 11) |
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Average Range: |
2kHz – 16kHz |
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Directivity Index (DI): 9 (+3, – 2 dB) |
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Directivity |
Factor (Q): |
7.9 ( + 7.9, – 2.9) |
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Average Range: |
500 |
Hz – 16 kHz |
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Usable Low-Frequency Limit: |
400 |
Hz |
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Recommended Crossover |
Freaquency: |
500 |
Hz |
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Axial Pressure |
Sensitivity: |
110 dB SPL, 1 W, 1 m |
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Construction: Molded structural foam (nominal 10 mm (0.38 in.) wall thickness)
Overall Dimensions:
Mouth Height: 279 mm (11 in)
Mouth Width: 445 mm ( 17.5 in)
Length: 236 mm (9.28 in)
Mounting Dimensions:
Rear Height: 235 mm (9.25 in)
Rear Width: 400 mm (15.75 in)
Baffle Cutout Required: (Front mounting only)
Height: 238 mm (97/8 in)
Width: 403 mm (157/8 in)
Net Weight: 1.62 kg (3.5 1b)
Shipping Weight: 3.42 kg (7.5 1b)
Beamwidth vs Frequency
Directivity vs Frequency
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