EAW CB523M User Manual

TECHNICAL SPECIFICATIONS CB523M

CINEMA SYSTEMS

DESCRIPTIVE DATA continued

DESCRIPTIVE DATA

Part Number 999825

LF Subsystem & Loading 2x15-in vented
MF Subsystem & Loading 1x10-in horn-loaded
HF Subsystem & Loading 1x1.4-in exit compression driver

on CD horn

Configuration 3-way, full range

Powering Mode Tri-amplified

System Crossover EAW CX300-CB523M

Cabinet Type (shape) Rectangular

Enclosure Materials LF-3/4-in Medium Density Fiberboard

15 mm birch plywood baffle-

MF/HF-MDF

Finish Textured black

Connectors 2x2-terminal barrier strips

(LF and MF) plus 2x bind posts (HF)

Dimensions inches millimeters

Height 69.41 1763

Width 24.80 630
Depth 17.75 451

Weights pounds kilograms

Net Weight (approx) 235 10.69

Shipping Weight (approx) 253 115.1

• Approved for use in THX®-certified theaters

• For medium-sized theaters

• Tri-amplified 3-way screen channel loudspeaker

The CB523M tri-amplified three-way full-range screen channel loud­speaker system has been approved for use in THX® certified theaters.

Three-way design dramatically advances cinema audio quality by
improving the naturalness and intelligibility of dialog, eliminating
distortion from excessive driver excursion and extending pattern
control into the lower octaves.

The two component system includes a BV253C dual 15-in low
frequency enclosure and an HK523M mid/high section.

The low frequency enclosure uses optimally tuned enclosure venting
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 enclosure’s shallow dimension
allows convenient placement behind the screen.

The HK523M MF/HF section features a horn-loaded 10-in cone and a
high power 1.4-in exit compression driver loaded with a 90°x45°
coverage pattern constant directivity horn.

The adjustable steel bracket attaching the MF/HF section to the LF
enclosure can be positioned at one of three mounting points for
optimum front/rear placement. The bracket allows the MF/HF section
to be aimed independently of the LF section in both the horizontal
and vertical planes and can be locked once it is positioned.

Input connectors for the LF and MF sections are two-terminal
barrier strips that accommodate bare wire, tinned leads or spade
lugs. Bind posts for the high frequency section are located directly
on compression driver. The input panels are located on the sides and
top of the enclosures for convenient access in cramped installation
areas.

APPLICATION

PRODUCT INFORMATION

TECHNICAL SPECIFICATIONS CB523M

Frequency Response

+

3 dB 42 Hz - 19 kHz

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

LF 101
MF 108
HF 112

Impedance (Ohms)

LF 4
MF 8

HF 12

Power Handling (Watts)

LF 1000
MF 325
HF 200

Calculated Maximum Output (dB SPL @ 1m)

LF Peak 137.0

MF Peak 139.1

HF Peak 141.0

LF Long Term 131.0

MF Long Term 133.1

HF Long Term 135.0

Nominal Coverage Angle/-6 dB points (degrees)

Horizontal 90

Vertical 45

NOMINAL DATA

COMPONENTS & CONSTRUCTION

COMPONENTS & CONSTRUCTION continued

The CB523M is a THX® approved, tri-amplified three-way, high out­put, full range loudspeaker system intended for use in behind-screen
cinema applications. The two component system includes a BV253C
dual 15-in low frequency enclosure and an HK523M mid/high
system.

The system requires the use of external active electronic crossovers
to integrate all sections.

The BV253C low frequency component features dual 15-in woofers
mounted in a vented enclosure for excellent bass extension and high
output level capability.

The HK523M mid/high component features a horn-loaded 10-in
midrange driver and a 1.4-in exit compression driver mounted to a
medium format 90° x 45° constant directivity horn.

Two-terminal barrier strip input connectors that accommodate bare
wire, tinned leads or spade lugs are included for the low-and mid

frequency sections. Bind posts for the high frequency section are
located directly on compression driver.

The LF cabinet is constructed of 3/4-in Medium Density Fiberboard
(MDF). The HK523M mid/high section is constructed of 3/4-in MDF
with the exception of the mid frequency flare which is void-free,
18-ply-to-the-inch, Baltic birch plywood backed with high density
polyurethane foam. Both enclosures are coated with a textured black
finish. The HF horn is constructed of flat black structural foam plastic.

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

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 #888125(B) May 2001 ª Printed in USA

THX is a registered trademark of Lucasfilm, Ltd.