EAW CB523Mx User Manual

TECHNICAL SPECIFICATIONS CB523MX

CINEMA SYSTEMS

DESCRIPTIVE DATA

Part Number 997131

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 fange

Powering Mode Bi-amplified

Recommended Crossover 350 Hz EAW CX300-CB523MX

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 strip

Dimensions inches millimeters

Height 69.41 1763.0

Width 24.80 630.0
Depth 17.75 451.0

Weights pounds kilograms

Net Weight 215 97.5

Shipping Weight 230 104.3

• For medium-sized theaters

• Bi-amplified 3-way screen channel loudspeaker

The CB523MX full-range screen channel loudspeaker system offers
medium-sized theaters a cost-effective entry to the future of
cinema audio - three way loudspeaker design. Its passive mid/high
design lets it replace existing bi-amped two-way systems without
requiring new electronic crossovers or amplifiers. (Electronic
crossovers may require adjustment.)

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 HK523MX 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 HK523MX 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 mid/high section to the
LF enclosure can be positioned at one of three mounting points for
optimum front/rear placement. The bracket allows the mid/high
section to be aimed independently of the LF section in both the hor­izontal and vertical planes and can be locked once it is positioned.

The HK523MX’s mid and high frequency sections are integrated via a
complex passive crossover/filter network. EAW’s computer-designed
passive filter networks are tightly aligned to the loudspeakers they
control and go beyond merely dividing the signal, performing
critical equalization functions.

Two-terminal barrier strip input connectors that accommodate bare
wire, tinned leads or spade lugs are included for both the LF and
mid/high sections. 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 CB523MX

999825 (1)

exp 11/16/98 dpm

CB523M

INDICATES 3/8-16 THREADED MOUNTING HOLE

INDICATES 5/16-18 THREADED MOUNTING HOLE

INDICATES CENTER OF BALANCE

INPUT

TOP

BACK

ACCESS PANEL
MIDRANGE DRIVER

BRACKET,
EAW #606098

HK523M,
EAW #999826

5.21

25°

BV253C,
EAW #999418

INPUT

39.50

RIGHT SIDE

15.88

17.75

24.31 (POSITION 1)

20.82 (POSITION 2)

17.00 (POSITION 3)

3.66

24.43

FRONT

69.41

Frequency Response

+

3 dB 42 Hz - 19 kHz

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

LF 101

Passive MF/HF 105

Impedance (Ohms)

LF 4

Passive MF/HF 8

Power Handling, (Watts)

LF 1000

Passive MF/HF 350

Calculated Maximum Output (dB SPL @ 1m)

LF Peak 137.0

Passive MF/HF Peak 136.6

LF Long Term 131.0

Passive MF/HF Long Term 130.6

Nominal Coverage Angle/-6 dB points (degrees)

Horizontal 90

Vertical 45

NOMINAL DATA

COMPONENTS & CONSTRUCTION

COMPONENTS & CONSTRUCTION continued

The CB523MX is a bi-amplified (passive mid/high) 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 HK523MX
mid/high system.

The system requires the use of an external active electronic
crossover between the LF and mid/high sections with a maximum
recommended crossover point of 350 Hz. The mid/high component
includes an internal passive crossover/filter network with the
crossover set at 1.8 kHz integrated via a complex passive
crossover/filter network. EAW’s 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 BV253C low frequency component features dual 15-in woofers
mounted in a vented enclosure for excellent bass extension and high
output level capability.

The HK523MX 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°x45° constant directivity horn.

Input connectors for both the LF and mid/high components are 2­terminal barrier strips the accommodate bare wire, tinned leads or
spade lugs. A pre-installed “jumper cable” continues the signal
chain to the HF section.

The LF cabinet is constructed of 3/4-in Medium Density Fiberboard
(MDF) The HK523MX mid/high section is constructed of 3/4-in MDF
with the exception of the mid frequency flare which is void-free, 18­ply-to-the-inch, Baltic birch plywood backed with high density
polyurethane foam. Both sections are coated with a non-reflective.
textured black finish and the HF horn is constructed of flat black
structural foam plastic.

All external components feature a non-reflective, 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 #888167(B) May 2001 • Printed in USA