EAW CB153, CINEMA User Manual

Technical Specifications CB153

CINEMA SERIES

APPLICATION

• For small theaters

• Biamplified 3-way screen channel loudspeaker

PRODUCT INFORMATION

The CB153 full-range screen channel loudspeaker system offers small
theaters cost-effective access to the future of cinema audio – 3-way
loudspeaker design. Its passive mid/high biamplified design lets it
replace existing biamped two-way systems without requiring new
electronic crossovers or amplifiers. (Electronic crossovers settings
may need to be adjusted.)

The two component system consists of a BV154C low frequency
enclosure and an HK153 passive mid/high system.

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 HK153 features an 8-in MF cone transducer and a 1-in exit high
frequency compression driver loaded with EAW’s patented WGP®
waveguide.

CB153

HK153

BV154C

11.72

5.75

18.00

30.50

TO TOP AND BOTTOM

29.56

FRONT

TOP

DIMENSIONS APPLY

INDICATES 3/8-16 THREADED MOUNTING HOLE

INDICATES 5/16-18 THREADED MOUNTING HOLE

INDICATES CENTER OF BALANCE

10.66

80°

50.60

.12

3.62

RIGHT SIDE

15°

17.06

360°

3.00

BOTTOM

3.50

exp 11/16/98 dpm

13.20

13.89

LEFT SIDE

999828 (1)

INPUT

INPUT

The BV154C’s optimally vented enclosure uses the enclosure's
resonance to increase LF response while limiting the single 15-in
cone transducer's excursion. This method produces less distortion
and minimizes driver strain while extending LF response to the
lowest octaves.

Its 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 to allow optimum front/rear
positioning of the mid/high component. The adjustable steel
bracket attaching the mid/high component to the LF enclosure
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 LF and MF/HF sections include 2-terminal barrier strips which
accomodate bare wire, tinned leads or spade lugs. The input panels
are located on the sides of the enclosures for convenient access in
cramped installation areas.

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. • CB153 PUB#888123 Rev(A)/6/1/99 • Printed In USA

Technical Specifications CB153

CINEMA SERIES

COMPONENTS & CONSTRUCTION

The CB153 is a compact, biamplified (passive mid/high), three-way,
high-output, full range loudspeaker system intended for use in
behind-screen cinema applications. The two component system
consists of a BV154C low frequency enclosure and an HK153 passive
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 a internal passive crossover/filter network with the cross­over set at 1.8 kHz. 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 BV154C low frequency component features a single 15-in low
frequency driver mounted in an asymmetrical, vented enclosure for
excellent bass extension and high output level capability with low
distortion.

The HK153 mid/high component features a 1-in exit compression
driver loaded with EAW’s proprietary WGP® (Wave Guide Plate) and
a direct radiating 8-in mid frequency cone transducer.

The LF cabinet is constructed of 3/4-in Medium Density Fiberboard
(MDF) with the exception of the baffle, which is constructed of
15mm void-free, 18-ply-to-the-inch Baltic birch plywood. The mid/
high enclosure is constructed entirely of the MDF. Extensive internal
bracing is provided for both the LF and mid/high sections to
minimize panel resonances resulting from the large acoustical
energies generated within the enclosure while maximizing acousti­cal energy transfer into the audience area. The enclosures and all
external parts are coated with a textured black finish.

Input connectors for both the LF and mid/high sections are 2­terminal barrier strips. Separate input connectors for the LF and
mid/high sections are located on the side of the enclosure for
convenient access in cramped installation areas.

The adjustable steel bracket attaching the mid/high component to
the LF enclosure 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 LF enclosure has 2
mounting points to allow optimum front/rear positioning of the
mid/high component.

DESCRIPTIVE DATA

LF Subsystem & Loading 1x15-in vented
MF Subsystem & Loading 1x 8-in vented
HF Subsystem & Loading 1x 1-in compression driver on WGP

Number of Audio Bands 3-way

Type of Audio Bands Full Range

Powering Mode Biamplified

System Crossover 350 Hz recommended - EAWCX300-CB153

Recommended High-Pass

Frequency (24 dB/Octave) 30 Hz

Cabinet Type (shape) rectangular (LF), trapezoidal (MF/HF)

Enclosure Materials 3/4-in MDF, 15mm baltic birch plywood

baffle (LF); 3/4-in MDF (MF/HF)

Finish Textured Black

Connectors 2x 2 terminal barrier strip

NOMINAL DATA

Frequency Response (1 Watt @ 1m)

±3 dB 40 Hz - 18 kHz

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

Passive MF/HF 98

LF 98

Impedance (Ohms)

Passive MF/HF 8

LF 8

Power Handling, AES Standard (Watts)

Passive MF/HF 320

LF 500

Calculated Maximum Output (dB SPL @ 1m)

Passive MF/HF Peak 129

LF Peak 131.0

Passive MF/HF Long term 123

LF Long Term 125.0

Nominal Coverage Angle/-6 dB points (degrees)

Conical 90

Recommended Complementary Systems

Sub SB184C, SB185C, SB284C

Dimensions Inches Centimeters

Height 50.60 128.5

Width (Front) 29.50 74.9

Width (Rear) 36.13 91.8

Depth 13.90 35.3

Weights Pounds Kilograms

Net Weight 105.0 47.8

Shipping Weight 115.0 52.3

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. • CB153 PUB#888123 Rev(A)/6/1/99 • Printed In USA