EAW CB152x User Manual

Technical Specifications CB152x

CINEMA SERIES

APPLICATION

• For small theaters

• Full Range passive 2-way screen channel loudspeaker

• Requires only a single amplifier channel and no external
electronic crosssover

PRODUCT INFORMATION

The CB152x 2-way screen loudspeaker system fills small theaters
with all the high-impact, full-range on today's digitally encoded
soundtracks. Its internal passive LF/HF crossover/filter network
allows it to be powered by a single amplifier channel with no external
electronic crossover.

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.

CB152x

LEFT

TOP

FRONT

RIGHT

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.

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 low and high frequency 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 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. A "jumper cable" is supplied
to continue the signal chain to the HF section.

exp 3/2/97 mka

BOTTOM

ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED.

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. • CB152x PUB#888117 Rev(A)/6/1/99 • Printed In USA

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

Technical Specifications CB152x

CINEMA SERIES

COMPONENTS & CONSTRUCTION

The CB152x 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 CB152x's internal passive LF/HF crossover filter network allow
the system to be powered by a single amplifier channel with no
external active electronic crossover. The input connector is a 2­terminal barrier strip located on the LF section. A "jumper cable" is
provided to continue the signal chain to the HF 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 Passive

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,
jumper cable included)

NOMINAL DATA

Frequency Response (1 Watt @ 1m)

±3 dB 40 Hz - 18 kHz

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

98

Impedance (Ohms)

8

Power Handling, AES Standard (Watts)

500

Calculated Maximum Output (dB SPL @ 1m)

LF Peak 131.0

LF Long Term 125.0

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. • CB152x PUB#888117 Rev(A)/6/1/99 • Printed In USA