EAW Cinema CB259x User manual

CINEMA SERIES
One Main Street, Whitinsville, MA 01588 • [phone] • FAX [phone] • Email [email protected] • Web http://www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. • CB259xPUB#888119 Rev(A)/6/1/99 • Printed In USA
Technical Specifications CB259x
APPLICATION
• For medium cinemas
• Passive 2-way screen channel loudspeaker
• Requires only one amplifier channel and no external crossover
PRODUCT INFORMATION
The CB259x 2-way passive screen loudspeaker system fills medium-
sized theaters with all the high-impact, full-range sound encoded on
today’s digital soundtracks while reproducing voices clearly and
naturally.
The two component system includes a BV253C vented dual 15-in low
frequency unit and a HK294 high frequency system – a medium
format 90°x 40°HF horn loading a large diaphragm 2-in exit
compression driver.
The HK294’s constant directivity horn assures even distribution of
high frequency information to every seat in the house. Its shortened
horn throat minimizes horn throat distortion, eliminating the 700
Hz "honk" that has plagued cinema HF horns.
The BV253C’s optimally vented enclosure uses enclosure resonance
to increase LF response while limiting driver excursion. This method
produces less distortion and minimizes driver strain while extending
LF response to the lowest octaves.
The sections are integrated via an internal passive crossover/filter
network. EAW's complex, computer-designed passive filter networks
are tightly aligned to the loudspeakers they control and go beyond
merely dividing the signal, performing critical equalization func-
tions.
The adjustable steel bracket attaching the HF horn to the LF
enclosure can be positioned at one of three mounting points for
optimum front/rear HF horn placement. The bracket allows the HF
horn to be aimed independently of the LF section in both the
horizontal and vertical planes and can be locked once it is posi-
tioned.
The LF section includes a barrier strip that accomodates bare wire,
tinned leads or spade lugs. A jumper cable is supplied to extend the
signal chain to the HF component. The input connector is located on
the side of the enclosure for convenient access in cramped instal-
lation areas. HF component connection is made directly on the
compression driver.
All components feature a textured black finish to eliminate the
reflection of light through perforated cinema screens.
24.44
.12
TOP
20.88
7.28
FRONT
1.50
LEFT SIDE
39.50
17.75
3.69
5.28
RIGHT SIDE
7.19
54.19
1.50
CB259x
999265
exp 2/24/97 shb
ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED.

CINEMA SERIES
One Main Street, Whitinsville, MA 01588 • [phone] • FAX [phone] • Email [email protected] • Web http://www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. • CB259xPUB#888119 Rev(A)/6/1/99 • Printed In USA
Technical Specifications CB259x
COMPONENTS & CONSTRUCTION
The CB259x is a two way, high-output, passive, full range loud-
speaker system intended for use in cinema applications. It features
dual 15-in low frequency transducers mounted in a vented enclosure
and a titanium diaphragm compression driver mounted to a large, 2-
in throat, 90°x 40°coverage pattern, constant directivity horn.
The CB259x requires no external active electronic crossover. An
internal passive crossover/filter network integrates the LF and HF
sections. EAW's complex, computer-designed passive filter networks
are tightly aligned to the loudspeakers they control and go beyond
merely dividing the signal, performing critical equalization func-
tions.
The input connector is a 2-terminal barrier strip located on the side
of the LF section for convenient access in cramped installation
areas. A jumper cable is provided to extend the signal chain to the
HF component.
The low frequency enclosure is constructed of 3/4-in thick Medium
Density Fiberboard (MDF) with the exception of the baffle which is
15-mm void-free, cross-grain-laminated birch plywood. Extensive
internal bracing is employed to minimize panel resonances resulting
from the large acoustical energies generated within the enclosures.
The high frequency horn is constructed from a specially formulated
compound which is non-resonant, lightweight and non-reflective.
The LF enclosure has 3 mounting points to allow optimum front/rear
positioning of the HF component. The adjustable steel bracket
attaching the HF horn to the LF enclosure allows the HF horn to be
aimed independently of the LF section in both the horizontal and
vertical planes and can be locked once it is positioned.
DESCRIPTIVE DATA
LF Subsystem & Loading 2x 15-in, vented
HF Subsystem & Loading 1x 2-in exit compression driver
on CD horn
Number of Audio Bands 2-way
Powering Mode Passive
System Crossover Passive
Recommended High-Pass
Frequency (24 dB/Octave) 30 Hz
Cabinet Type (shape) Rectangular with externally mounted
horn/driver assembly
Enclosure Materials 3/4-in MDF with 15mm Baltic birch
baffle
Finish Textured Black
Connectors 2-terminal barrier strip
NOMINAL DATA
Frequency Response (1 Watt @ 1m)
±3 dB 42 Hz - 17 kHz
Axial Sensitivity (dB SPL, 1 Watt @ 1m)
Full Range 100
Impedance (Ohms)
Full Range 4
Power Handling, AES Standard (Watts)
Full Range 500
Calculated Maximum Output (dB SPL @ 1m)
Full Range Peak 133.0
Full Range Long Term 127.0
Nominal Coverage Angle/-6 dB points (degrees)
Horizontal 90
Vertical 40
Recommended Complementary Systems
Sub SB184C, SB185C, SB284C
Dimensions Inches Centimeters
Height 54.19 137.6
Width 24.44 62.1
Depth (min.) 17.75 45.1
Depth (max.) 24.94 63.3
Weights Pounds Kilograms
Net Weight 160.5 73.0
Shipping Weight 177.5 80.8