JBL-2386 #20609

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Details
The JBL 2386 Flat-Front Bi-RadialTM horn is designed for flush cabinet mounting or compact cluster applications. The 2386 has a nominal coverage pattern of 40� horizontal by 20� vertical. It provides uniform on-and off-axis frequency response from 1 kHz to beyond 16 kHz in the horizontal plane and 2.5 kHz to 16 kHz in the vertical plane, with constant directivity above 2 kHz. The horn�s small vertical mount dimension (just slightly larger than the compression driver used to drive the horn) allows very compact single and multiple horn/driver systems to be put together. Should vertical pattern control be required below 2.5 kHz, two or more horns may be stacked vertically to restore full Bi-Radial performance. The exceptionally consistent horizontal dispersion eliminates the midrange narrowing and high frequency beaming problems typically associated with conventional horn designs. Additionally, the highly predictable performance of the 2386 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 the horizontal and vertical planes. Utilizing sidewall contours based on a polynomial power series formula, the horn design yields smooth response, low distortion, and even coverage. This design avoids the performance disadvantages of horns that feature sharp flare transitions and flat sidewalls. The Bi-RadialTM compound flare configuration provides constant coverage over defined, solid angles. To ensure lightweight, superior strength, and freedom from resonances, the horn bell is contructed of injection-molded, reinforced, solid polyurethane. The 2386 will accept the 49 mm (2 in) diameter throat 2441, 2445, or 2482 compression driver. With the addition of the 2327 adapter, the horn will also accept the 25 mm (1 in) throat 2425 driver. Features: 40� x 20� nominal dispersion 49 mm (2 in) throat entry 116 dB sensitivity (1W/1m with 2446H driver) 400 Hz usable low frequency limit Uniform on- and off-axis frequency response Precise horizontal and vertical pattern control Specifications: Nominal Coverage: 40� Horizontal x 20� Vertical Throw: Long Horizontal Coverage:Angle Degrees (�6 dB): 45 (+12 �14) Average Range: 1 kHz-16 kHz Vertical Coverage:Angle Degrees (�6 dB): 25 (+11 �10) Average Range: 2.5 kHz-16 kHz Directivity Factor (Q): 44.9 (+38.2 �18.1) Directivity Index (Di): 16.5 dB (+2.7 �2.2) Average Range: 2 kHz-16 kHz Throat Diameter: 49 mm (2 in) Usable Low Frequency Limit: 350 Hz Minimum Recommended Crossover Frequency: 400 Hz Axial Pressure Sensitivity: 116 dB SPL, 1W @ 1 m Construction: Injection-molded reinforced high-density solid polyurethane [nominal 10 mm (0.38 in) wall     thickness] Color: Black Overall Dimensions: Mouth Height: 279 mm (11 in) Mouth Width: 445 mm (17.5 in) Length: 359 mm (14-9⁄64 in) Mounting Dimensions: Rear Height: 235 mm (9� in) Rear Width: 400 mm (15M in) Baffle Cutout Required: (Front mounting only) Height: 238 mm (9K in) Width: 403 mm (15M in) Net Weight: 5.5 kg (12 lb) Shipping Weight: 7.3 kg (16 lb)