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2392, 2393, 2394
Large Format Optimized
Aperture Bi-Radial
®
Horn Family
Key Features:
c Optimized ApertureTMhorn design
provides very low distortion at high
sound pressure levels.
c Large format horn family provides
uniform on and off axis frequency
response from 300 Hz to above
3 kHz.
c Controlled horizontal and vertical
pattern in 90° x 50°, 60° x 40°, and
40° x 30° coverage patterns.
c 76mm (3 in) throat entry.
JBL models 2392, 2393, and 2394 are
valuable additions to JBL’s family of
Bi-Radial®horns, providing uniform
coverage control over the bandwidth
of 300 Hz to above 3 kHz, allowing
precise control of critical vocal range
energy. These large format horns
provide extremely low distortion at
typical peak sound pressure levels of
up to 145 dB-SPL at 1m (model 2394).
Optimized Aperture -
The clear and uncolored sound
character of the 2390-Series horns is
accomplished by coupling the
compression driver phase plug to a
unique horn throat geometry, resulting
in the elusive combination of
extremely low throat distortion with
high air movement capability. These
horn designs were verified through the
use of advanced technology, including
finite element analysis, boundary
element analysis and extensive
computer modeling via proprietary JBL
horn design software.
Professional Series
Components and Accessories -
The 2390-Series of horns were designed to be used exclusively with the
2490H midrange compression driver. The diaphragm for this driver utilizes a
three-dimensional diamond pattern surround and a pure titanium diaphragm
for rigidity and freedom from breakup modes. With its 200 watt continuous
program rating and optimized phase plug design for low distortion, smooth
response and wide bandwidth, the 2490H is ideal for use in high level sound
pressure applications.
The 2510 Mounting Bracket is recommended for suspension of the
horn/driver combination. The 2510 “sandwiches” between the horn and driver
providing multiple pickup points, including a slot that allows front/back
alignment.
Optional Weather-Resistant versions are available, providing a 3-layer
weather resistant grill and sealed chamber for the driver.
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c 2392, 2393, 2394 Large Format Optimized Aperture Bi-Radial®Horn Family
JBL 2392 Horn
Frequency response is measured on-axis to the JBL
2392 horn at a distance referenced to 1 meter at
1-watt (2.83 V rms) input in a reflection free
environment.
Beamwidth vs. Frequency Horizontal Off Axis Frequency Response
Directivity vs. Frequency Vertical Off-Axis Frequency Response
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Horizontal 1/3 Octave Polars Vertical 1/3 Octave Polars
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c 2392, 2393, 2394 Large Format Optimized Aperture Bi-Radial®Horn Family
JBL 2393 Horn
Frequency response is measured on-axis to the JBL
2393 horn at a distance referenced to 1 meter at
1-watt (2.83 V rms) input in a reflection free
environment.
Beamwidth vs. Frequency Horizontal Off Axis Frequency Response
Directivity vs. Frequency Vertical Off-Axis Frequency Response
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Horizontal 1/3 Octave Polars Vertical 1/3 Octave Polars
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c 2392, 2393, 2394 Large Format Optimized Aperture Bi-Radial®Horn Family
JBL 2394 Horn
Frequency response is measured on-axis to the JBL
2394 horn at a distance referenced to 1 meter at
1-watt (2.83 V rms) input in a reflection free
environment.
Beamwidth vs. Frequency Horizontal Off Axis Frequency Response
Directivity vs. Frequency Vertical Off-Axis Frequency Response
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Horizontal 1/3 Octave Polars Vertical 1/3 Octave Polars
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Specifications:
Horn Model: 2392 2393 2394
Horizontal Coverage Angle (-6 dB): 90° (+5°, -10°) 60° (+5°, -8°) 40° (+10°, -0°)
90° 300 Hz to 4 kHz 60° 300 Hz to 4 kHz 40° 300 Hz to 4 kHz
Vertical Coverage Angle (-6 dB): 50° (+35°, -0°) 40° (+28°, -2°) 30° (+25°, -5°)
50° 300 Hz to 4 kHz 40° 300 Hz to 4 kHz 30° 300 Hz to 4 kHz
Directivity Factor (DQ): 10° (+5, -2) 20° (+12, -10) 33° 300 Hz to 4 kHz
50° 300 Hz to 4 kHz 40° 300 Hz to 4 kHz
Directivity Index (DI): 10° (+2, -1) 13° (+2, -3) 15° 300 Hz to 4 kHz
50° 300 Hz to 4 kHz 40° 300 Hz to 4 kHz
Axial Pressure Sensitivity1: 114 dB 115 dB 116 dB
Minimum Recommended Crossover: 300 Hz @ 18 dB/octave min. 300 Hz @ 18 dB/octave min. 300 Hz @ 18 dB/octave min.
Usable Low Frequency Limit: 300 Hz
Calc. Max. Continuous SPL: 137 dB SPL @ 1 m 138 dB SPL @ 1 m 139 dB SPL @ 1 m
Calc. Max. Peak SPL2: 143 dB SPL @ 1 m 144 dB SPL @ 1 m 145 dB SPL @ 1 m
Physical:
Construction: Fiberglass reinforced plastic
Mount Height: 1118 mm (44 in) 1067 mm (42 in) 1219 mm (48 in)
Mount Width 1118 mm (44 in) 1118 mm (44 in) 1270 mm (50 in)
Length with Driver: 853 mm (33.6 in) 1005 mm (39.6 in) 1315 mm (51.6 in)
Length of each Section3: 385 mm (15 in) 460 mm (18 in) 610 mm (24 in)
Net Weight: 18 kg (40 lbs) 32.2 kg (71 lbs) 36.36 kg (80 lbs)
1
Measured on axis in the far field with 1 watt (2.83 V RMS @ 8 ohms) input and referenced to 1 meter distance using the inverse square law. Listed sound pressure represents an
average from 300 Hz to 16 kHz
2
With 2490H driver.
3
To facilitate shipping and handling this horn is made and shipped in two halves.
JBL continually engages in research related to product improvement. New materials, production methods, and design refinements are introduced into existing products without
notice as a routine expression of that philosophy. For this reason, any current JBL product may differ in some respect from its published description, but will always equal or
exceed the original design specifications unless otherwise stated.
JBL Professional
8500 Balboa Boulevard, P.O. Box 2200
Northridge, California 91329 U.S.A.
A Harman International Company
SS 2392/93/94
CRP 10M
1/98
c 2392, 2393, 2394 Large Format Optimized Aperture Bi-Radial®Horn Family
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