JBL 8320 User Manual
Compact Cinema Surround
Professional Series
Key Features:
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50 Hz to 20 kHz Frequency Range
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High Sensitivity, 91 dB SPL, 1 W,
1 m (3.3 ft)
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High Power Handling Capability:
150 watts continuous pink noise
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Internal Thermomaster®technology
allows for unprecedented high
frequency power in a compact
molded enclosure.
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Convenient mounting design uses
JBL QuickMount
APC Multimount brackets
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Special cabinet shape incorporates
20° angled front baffle
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SMPTE/ISO2969 Curve X high
frequency de-emphasis
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Lightweight, rigid molded enclosure
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Input terminals located on top of
cabinet for quick access
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Uniform horizontal and vertical
coverage
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THX®Approved
The 8320 Cinema Surround Speaker
offers high power handling, high
sensitivity, and extended bass response
in a very compact enclosure. The twoway 8320’s reliability and performance
features position it as the ideal low
cost, compact surround for the
extended dynamic range required by
digital sound formats.
The 8320 features a high power,
long-throw 200 mm (8 in) low
frequency driver for smooth, extended
bass response. The high frequency
section combines a 25 mm (1 in)
diameter soft dome driver with a
constant coverage horn for very high
output capability and wide, even high
frequency coverage. The 150 watt
continuous power rating (600 watt
peak) provides extended dynamic
range required for digital soundtracks
with absolute reliability.
Its modern, molded black textured
enclosure with black grille enhances
any decor.
JBL’s QuickMount bracket allows one
person to quickly and simply mount
the very lightweight enclosure on a
previously installed bracket half.
Built to traditional JBL quality
standards, the 8320 will stand up to
long-term use under adverse conditions
while delivering excellent performance.
Omnimount is a registered trademark of Omnimount
Systems.
THX is a trademark of THX Ltd. which may be
registered in some jurisdictions. All rights reserved.
TM
, Omnimount®or
8320
Speaker for Digital Applications
Specifications:
System:
Frequency Range (-10 dB): 50 Hz - 20 kHz
Frequency Response (±3 dB): 65 Hz - 18 kHz
Power Rating1: 150 watts continuous pink noise, 600 watts peak
Sensitivity (1W/1m)2: 94 dB-SPL half-space / wall-mounted
Maximum Peak SPL3: 122 dB/1m
Nominal Impedance: 8 ohms
Hor. Coverage Angle (-6 dB): 100° averaged 400 Hz to 12 kHz
Vert. Coverage Angle (-6 dB): 90° averaged 400 Hz to 12 kHz
Directivity Factor (Q): 7 averaged 400 Hz to 12 kHz
Directivity Index (DI): 8.4 dB averaged 400 Hz to 12 kHz
Crossover Frequency: 3 kHz
High Frequency Contour: ISO2969 Curve X surround contour
Polarity: EIA (Positive voltage to RED terminal gives
Low Frequency Transducer:
Nominal Diameter: 200 mm (8 in)
High Frequency Transducer:
Nominal Diameter: 25 mm (1 in)
Physical:
Downward Firing Angle: Nominal 20° when mounted flush on back panel
Enclosure Material: Textured Black H.I.P.S. Plastic
Grille Color: Black
Input Connectors: 5-way binding posts
Dimensions (H x W x D): 406 mm x 343 mm x 224 mm
Net Weight: 5.0 kg (11 lb)
1
Rating based on test signal of IEC filtered random noise with a peak-to-average ratio of 6 dB, two hours duration.
2
Average measured free-field and half-space sensitivity at 2.83V/1m from 200 Hz to 3 kHz.
3
Calculated maximum SPL based on rated power handling and half-space sensitivity.
JBL continually engages in research related to product improvement. Some 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.
91 dB-SPL free-field
forward cone motion)
38 mm (1.5 in) voice coil
25 mm (1 in) voice coil
16 in x 13.5 in x 8.8 in
䉴 8320 Compact Cinema Surround Speaker for Digital Applications
Frequency Response in half-space (2, solid line) and
free-field (4, dotted line), and Input Impedence
100
90
80
SPL (dB)
70
60
20 100 1000 10000 20000
16.00 (406)
13.50 (343)
Frequency (Hz)
8.80 (224)
20°
Beamwidth vs. Frequency
360
100
Horizontal
-6 dB Beamwidth (degrees)
Vertical
10
20 100 1000 10000 20000
Frequency (Hz)
Horizontal Off-Axis Frequency Response
10
0
-10
Attenuation (dB)
-20
-30
20 100 1000 10000 20000
Frequency (Hz)
Vertical Off-Axis Frequency Response (down)
10
0
-10
Attenuation (dB)
-20
-30
20 100 1000 10000 20000
Frequency (Hz)
0 deg
10 deg
20 deg
30 deg
40 deg
0 deg
10 deg
20 deg
30 deg
40 deg
2.750 (70)
5.000 (127)
Impedance
100
10
Impedance (Ohms)
1
20 100 1000 10000 20000
JBL Professional
8500 Balboa Boulevard, P.O. Box 2200
Northridge, California 91329 U.S.A.
A Harman International Company
© Copyright 2008 JBL Professional
Frequency (Hz)
SS 8320
CRP 5M
08/08
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