JBL CWT128 User Manual
Extremely Wide-Angle Coverage
CWT128
Key Features:
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Seamless horizontal coverage
across a full 160°
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Compact size and small footprint
make it ideal for architecturally
sensitive environments
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Dual 205 mm (8 in) LF transducers
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Extremely wide-coverage
160° x 60° waveguide
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Dual 25 mm (1") exit, 38 mm (1.5")
diaphragm compression driver
Applications:
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Transportation Facilities
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Cinema
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Sports Facilities
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Theme Parks
The JBL Crossfired Waveguide
Technology CWT128 is a compact
full-range 2-way system designed to
provide extremely wide-angle
coverage with maximum bandwidth
and SPL in a single system package.
The unique wide coverage pattern
horn is designed to provide
seamless coverage to 160-degrees
horizontally. CWT128’s small
footprint makes the system ideal for
nearly all architecturally sensitive
environments, taking up about a
third of the footprint of two
speakers splayed side by side.
The CWT128 is fitted with dual
8" JBL SFG™ (Symmetrical Field
Geometry) LF drivers each with a
copper clad aluminum edge-wound
64 mm (2.5") voice coil and a
copper clad pole piece that
improves performance by reducing
voice coil inductance and
distortion. Additionally, the CWT182
is fitted with dual 2408H-1 25 mm
(1") exit, 38 mm (1.5") diaphragm
compression drivers.
The rugged multiply hardwood
enclosure is designed with multiple
mounting options and finished in
JBL’s textured DuraFlex™ finish
with a heavy duty powder coated
steel grille.
Internal passive network and
110W 70/100V transformer with
barrier strip terminal input for
permanent installation.
Dual 8" 2-Way Loudspeaker System
Specifications:
System:
Transducers:
Physical:
1
On axis SPL measured in far field and referenced to 1 meter by inverse square law. Average from 300 Hz to 16 kHz.
2
Calculated based on system sensitivity and continuous power handling.
3
IEC shaped pink noise, 6 dB crest factor, 100 hour duration.
4
AES standard 2 hour duration, with IEC system noise spectrum.
5
WRC for outdoor placement where the loudspeaker will be sheltered from direct exposure to the elements. WRX for
direct exposure or extreme environments, such as tropical or beach, or in areas with salt air, extreme high humidity or
rapid changes in temperatures. See WRC/WRX configuration sheet for details.
JBL continually engages in research related to product improvement. Changes introduced into existing products
without notice are a routine expression of that philosophy.
Frequency Range (-10 dB): 71 Hz - 20 kHz
Frequency Response (+/-3 dB): 96 Hz - 19 kHz
Horizontal Coverage: 160°
Vertical Coverage: 60°
System Sensitivity1: 94 dB SPL/1W/1m
Rated Maximum SPL (1m)2: 129 dB
System Nominal Impedance: 8 Ohms
Long-Term System Power Rating3: 450W (1800 Peak)
Optional Weather Resistant Versions5: WRC & WRX available upon request
System Power Rating4: 850W/1700W/3400W
70/100V Transformer Taps:
Low Frequency Driver:
High Frequency Driver: 2 x 2408H-1 25 mm (1 in) exit compression driver, 38 mm
High-Frequency Waveguide: Crossfired Waveguide based on Patented Technology
Suspension Attachment: 4 x M10 (1 x M10 points, one top, one bottom, plus 1 x M10
Environmental Specifications: Mil-Std 810; IPx3 per IEC529. For higher environmental ratings,
Dimensions (H x W x D): 811.28 x 259.59 x 300.74 mm
Crossover: 1.5 kHz
Enclosure: 12 mm and 15 mm exterior grade multi-ply hardwood plywood
Input Connectors: CE-compliant covered barrier strip terminals. Barrier terminals
170V: 110W, 55W, *28W
100V: 110W & 55W
2 x JBL 228J, 205 mm (8 in) SFG™ driver with 64 mm (2.5 in) edge
wound voice coil
(1.5 in) voice coil
point on each side panel.)
4 x M8 rear for OmniMount®60.0
Finish: Black DuraFlex™ finish. White (-WH) available upon request.
Grille: Powder coated 16 gauge perforated steel, acoustically
transparent foam backing (grille cloth backing on white units)
accept up to 5.2 sq mm (10 AGW) wire or max width 9 mm
(.375 in) spade lugs.`
use WRC or WRX.
(31.94 x 10.22 x 11.84 in)
Weight: 18.6 kg (40.9 lb)
2
䉴 CWT128
Beamwidth
360
100
-6 dB Beamwidth (degrees)
10
20 100 1000 10000 20000
Directivity Index, Q
20
10
Dual 8" 2-Way Loudspeaker System
Horizontal
Vertical
Frequency (Hz)
Directivity Index (DI), dB
0
20 100 1000 10000 20000
Frequency (Hz)
Dimensions
Dimensions: in (mm)
For more detailed dimensional information, visit www.jblpro.com
2X 15.0°
Frequency Response and Impedance
100 316
90
80
SPL (dB)
70
60
20 100 1000 10000 20000
100
10
1
Horizontal Off-Axis Frequency Response
10
0
-10
Attenuation (dB)
-20
Directivity Factor (Q)
-30
20 100 1000 10000 20000
2 half space
4 free field
Frequency (Hz)
Frequency (Hz)
100
31.6
Ohms
10
3.16
0 deg
10 deg
20 deg
30 deg
40 deg
50 deg
60 deg
70 deg
80 deg
Vertical Off-Axis Frequency Response
10
0
-10
Attenuation (dB)
-20
-30
20 100 1000 10000 20000
Frequency (Hz)
0 deg
10 deg
20 deg
30 deg
40 deg
50 deg
60 deg
70 deg
80 deg
6.5 [166.2]
2X 45.0°
2X 2.3 [59.2]
2X 6.6 [167.1]
11.8 [300.7]
7.0 [177.5]
5.9 [148.9]
31.9 [811.3]
32.4 [823.8]
10.2 [258.6]
86.4mm
3.4in
3.5 [88.9]
5.0 [127.0]
16.0 [405.6]
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