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CINEMA SERIES
One Main Street, Whitinsville, MA 01588 • (508) 234-6158 • FAX (508) 234-8251 • Email info@eaw.com • Web http://www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. • PUB# CB423M-888165 (A)/3/1/00 • Printed In USA
Technical Specifications CB423M
COMPONENTS & CONSTRUCTION
The CB423M is a THX-approved, triamplified three-way, high-
output, full range loudspeaker system intended for use in behind-
screen cinema applications. The two component system includes a
BV423 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 BV423 low frequency component features a 15-in woofer
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 non-reflec-
tive, textured black finish and the HF horn is constructed of flat
black structural foam plastic.
DESCRIPTIVE DATA
LF Subsystem & Loading 1x 15-in, vented
MF Subsystem & Loading 1x 10-in, horn loaded
HF Subsystem & Loading 1x 1.4-in exit compression driver
on CD horn
Number of Audio Bands 3-way
Powering Mode Triamp
Recommended Crossover EAW CX300-CB423M or
THX® Specified Unit
Cabinet Type (shape) Rectangular
Enclosure Materials LF-3/4-in MDF; 15mm
Birch plywood baffle — MF/HF-MDF
Finish Textured Black
Connectors 2x 2-Termimal Barrier Strips (LF and MF)
plus 2x Bind Posts (HF)
NOMINAL DATA
Frequency Response (1 Watt @ 1m)
±3 dB 42 Hz - 19 kHz
Axial Sensitivity (dB SPL, 1 Watt @1m)
LF 98
MF 108
HF 112
Impedance (Ohms)
LF 8
MF 8
HF 12
Power Handling (Watts)
LF 500
MF 325
HF 200
Calculated Maximum Output (dB SPL @ 1m)
LF Peak 131.0
MF Peak 139.1
HF Peak 137.0
LF Long Term 125.0
MF Long Term 133.1
HF Long Term 131.0
Nominal Coverage Angle/-6 dB points (degrees)
Horizontal 90
Vertical 45
Dimensions & Weights Inches Centimeters
Height 51.66 1312
Width 24.83 631
Depth 22.20 564
Weights Pounds Kilograms
Net Weight (approx) 150 68.1
Shipping Weight (approx) 165 74.1