EAW CB152 User Manual

Technical Specifications CB152

CINEMA SERIES

APPLICATION

• For small theaters

• Biamplified 2-way screen channel loudspeaker

PRODUCT INFORMATION

The CB152 2-way screen channel loudspeaker system fills small
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 BV154C vented 15-in low
frequency unit and an HK152 high frequency system – a medium
format 90° x 90° HF horn loading a large diaphragm 1.4-in exit
compression driver.

The HK152's medium format cinema HF horn ensures even distribu­tion of HF information over the entire audience area.

The BV154C’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.

CB152

exp 3/2/97 mka

LEFT

TOP

FRONT

BOTTOM

ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED.

RIGHT

The BV154C’s asymmetrical enclosure design smooths response in
the LF component's upper register and minimizes the potential for
standing waves inside the enclosure. Left and right side enclosures
can be placed flush to a back wall while still focusing their output
to the audience area. The enclosure can be inverted to provide a
right or left-handed angle.

The LF enclosure has 2 mounting points on both top and bottom to
allow optimum front/rear positioning of the mid/high component
for either right or left channel. 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 2-terminal barrier strip which accomodates
bare wire, tinned leads or spade lugs. The HF component uses heavy
duty spring-loaded push button type connectors. Input connectors
for the LF section are located on the side of the enclosure for
convenient access in cramped installation areas. HF input connec­tors are directly on the compression driver.

All 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. • CB152- PUB#888116 Rev(A)/6/1/99 • Printed In USA

THX is a registered trademark of Lucasfilms Ltd.

Technical Specifications CB152

CINEMA SERIES

COMPONENTS & CONSTRUCTION

The CB152 is a two way, high-output, full range loudspeaker system
intended for use in behind screen applications. It features a 15-in
low frequency transducer mounted in a compact, vented enclosure
and a titanium diaphragm compression driver mounted to a large
diaphragm, 1.4-in throat, 90° x 90° coverage pattern, constant
directivity horn.

The CB152 requires an external active electronic crossover. The
recommended crossover point is 1200 Hz. Input connectors for the
HF section are dual spring loaded push-button type, designed to
accommodate bare or tinned leads, with a 2-terminal barrier strip for
the LF section.

The low frequency enclosure is constructed of 3/4-in thick Medium
Density Fiberboard. Extensive internal bracing is employed to
minimize panel resonances resulting from the large acoustical
energies generated within the enclosures. The enclosure and all
external parts are coated with a black finish.

The high frequency horn is constructed from a specially formulated
structural polyurethane foam which is non-resonant, lightweight
and non-reflective. The LF enclosure has 2 mounting points on both
top and bottom to allow optimum front/rear positioning of the mid/
high component for either right or left channel. 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 1x 15-in, vented

HF Subsystem & Loading 1x 1.4-in exit compression driver on CD

horn

Number of Audio Bands 2-way

Type of Audio Bands Full Range

Powering Mode Biamplified

System Crossover Active (1200 Hz recommended) - EAW

CX300-CB152

Recommended High-Pass

Frequency (24 dB/Octave) 30 Hz

Cabinet Type (shape) Modified trapezoid with externally

mounted HF horn/driver assembly

Enclosure Materials 3/4-in MDF

Finish Textured Black

Connectors LF- 2 terminal barrier strip; HF - spring-

loaded pushbutton (accepts bare wire)

NOMINAL DATA

Frequency Response (1 Watt @ 1m)

±3 dB 45 Hz - 17 kHz

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

LF 98

HF 110

Impedance (Ohms)

LF 8

HF 12

Power Handling, AES Standard (Watts)

LF 500

HF 150

Calculated Maximum Output (dB SPL @ 1m)

LF Peak 131.0

HF Peak 137.0

LF Long Term 125.0

HF Long Term 131.0

Nominal Coverage Angle/-6 dB points (degrees)

Horizontal 90

Vertical 90

Recommended Complementary Systems

Sub SB184C, SB185C, SB284C

Dimensions Inches Centimeter

Height 45.50 115.6

Width 29.50 74.9
Depth 13.50 34.3

Weights Pounds Kilograms

Net Weight 95 43.1

Shipping Weight 107 48.5

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. • CB152- PUB#888116 Rev(A)/6/1/99 • Printed In USA

THX is a registered trademark of Lucasfilms Ltd.