EAW CB259X User Manual

TECHNICAL SPECIFICATIONS CB259X

CINEMA SYSTEMS

DESCRIPTIVE DATA contiued

DESCRIPTIVE DATA

Configuration 2-way

Powering Mode 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 Medium Density Fiberboard

with 15 mm baltic birch baffle

Finish Textured black

Connectors 2 terminal barrier strip

Dimensions inches millimeters

Height 54.19 1376

Width 24.44 621

Depth (min.) 17.75 451

Depth (max.) 24.94 633

Weights pounds kilograms

Net Weight 160.5 73.0

Shipping Weight 177.5 80.8

Part Number 999356
LF Subsystem & Loading 2x15-in vented
HF Subsystem & Loading 1x2-in exit compression driver on

CD horn

• For medium cinemas

• Passive 2-way screen channel loudspeaker

• Requires only one amplifier channel and no external crossover

The CB259X two-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°x40° 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 the enclosure’s 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 functions.

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 positioned.

The LF section includes a barrier strip that accommodates 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 installa­tion areas. HF component connection is made directly on the
compression driver.

APPLICATION

PRODUCT INFORMATION

TECHNICAL SPECIFICATIONS CB259X

The CB259X is a two way, high-output, passive, full range loud­speaker 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, 2­in throat, 90°x40° 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
functions.

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, gross-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 allow the HF horn to be
aimed independently at the LF section in both the horizontal and
vertical planes and can be locked once it is positioned.

All components feature a textured black finish to eliminate the
reflection of light through perforated cinema screens.

COMPONENTS & CONSTRUCTION

COMPONENTS & CONSTRUCTION continued

Frequency Response

+

3 dB 42 Hz - 17 kHz

Axial Sensitivity (dB SPL, 1 Watt @ 1m)

Full Range 101

Impedance (Ohms)

Full Range 4

Power Handling, AES Standard (Watts)

Full Range 500

Calculated Maximum Output (dB SPL @ 1m)

Full Range Peak 134.0

Full Range Long Term 128.0

Nominal Coverage Angle/-6 dB points (degrees)

Horizontal 90

Vertical 40

NOMINAL DATA

One Main Street, Whitinsville, MA 01588 • [phone] • FAX [phone] • Email [e-mail] • Web http://www.eaw.com

EAW products are continually improved. All specifications are therefore subject to change without notice. • PUB #888119(B) May 2001 ª Printed in USA