EAW CINEMA Series, CB153 Components & Construction, Descriptive Data, Nominal Data, Cinema Series

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 cross- over 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 acousti- cal 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 2- terminal 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 indepen- dently 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 • (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. • CB153 PUB#888123 Rev(A)/6/1/99 • Printed In USA