Jbl 2386 brochure
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Page 1
c2386 Flat-Front Bi-Radial Horn SpeciÞcations: Nominal Coverage: 40°Horizontal x 20°Vertical Throw: Long Horizontal Coverage:Angle Degrees (Ð6 dB): 45 (+12 Ð14) Average Range: 1 kHz-16 kHzVertical Coverage: Angle Degrees (Ð6 dB): 25 (+11 Ð10) Average Range: 2.5 kHz-16 kHz Directivity Factor (Q): 44.9 (+38.2 Ð18.1)Directivity Index (Di): 16.5 dB (+2.7 Ð2.2) Average Range: 2 kHz-16 kHzThroat 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-á/¤¢ in) Mounting Dimensions: Rear Height: 235 mm (9Gin)Rear Width: 400 mm (15Min) Bafße Cutout Required: (Front mounting only) Height: 238 mm (9Kin)Width: 403 mm (15Min) Net Weight: 5.5 kg (12 lb) Shipping Weight: 7.3 kg (16 lb) 1 Measured on axis in the far Þeld with 1 watt (4.0 VRMS, 16 ohms) input and referenced to 1 meter distance using the inverse square law. Listed sound pressure represents an average from 1 kHz to 4 kHz using the JBL Model 2441, 2445 or 2482 driver. Beamwidth vs Frequency Directivity vs Frequency ppppp pp ppppppppppp 100 10 1 Q 20 50 100 500 Frequency in Hz1000 5000 10000 2000001020 D I dB 20000 10000 5000 2000 1000 500 Frequency in Hz 200 100 50 20 10 20 30 4050 60 70 80 90 100 180 200 300 ppp pppppppp ppppppp Hor. Vert. Beamwidth (-6 dB) Degrees ggggg gggggggpggggggg
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Frontal Isobar Contours 1 kHz octave bandwidth constant sound pressure contours. Same conditions as 500 Hz contours. 4 kHz octave bandwidth constant sound pressure contours. Same conditions as 500 Hz contours. Vertical90° 60° 30° 0° Horizontal -3 dB0° 0 dB on Axis 20° 40° 60° 80° 100° 120° -6 dB-9 dB-12 dB-15 dB-18 dB Vertical90° 60° 30° 0° Horizontal -12 dB 20° 40° 60° 80° 100° 120° 0° 0 dB on Axis-3 dB-6 dB-9 dB-15 dB-18 dB Vertical90° 60° 30° 0° Horizontal 0° 0 dB on Axis -3 dB20° 40° 60° 80° 100° 120° –9 dB–6 dB –12 dB 500 Hz octave bandwidth constant sound pressure contours of 0 to Ð18 dB in steps of Ð3 dB. The con- tours are plotted on polar grid lines with on axis being the center of the plot. The data was gathered by taking an octave polar plot at all oblique angles from 0°(horizontal) to 90°(vertical) in steps of 15°. Same test conditions as horizontal polar response. 2 kHz octave bandwidth constant sound pressure contours. Same conditions as 500 Hz contours. 8 kHz octave bandwidth constant sound pressure contours. Same conditions as 500 Hz contours. Vertical90° 60° 30° 0° Horizontal 0° 0 dB on Axis 20° 40° 60° 80° 100° 120° -12 dB-18 dB -9 dB-15 dB-6 dB-3 dB Vertical90° 60° 30° 0° Horizontal 0° 0 dB on Axis 20° 40° 60° 80° 100° 120° -18 dB-15 dB -12 dB -9 dB -6 dB -3 dB