EAW Cinema SB284C Bedienungsanleitung

CINEMA SERIES

One Main Street, Whitinsville, MA 01588 • (508) 234-6158 • FAX (508) 234-8251 • Email [email protected] • Web http://www.eaw.com

EAW products are continually improved. All specifications are therefore subject to change without notice. • SB284C PUB#888134 Rev(A)/6/1/99 • Printed In USA

THX is a registered trademark of Lucasfilms Ltd.

Technical Specifications SB284C

PRODUCT INFORMATION

The SB284C cinema subwoofer loudspeaker system uses dual 18-in

cone transducers each mounted in its own optimally vented suben-

closure to fill large capacity theaters with high definition sub bass

information at earth-shaking output levels. This system has been

approved by the THX® division of Lucasfilm, Ltd., for use in THX-

certified theaters.

The SB284C’s optimally vented enclosure uses enclosure resonance

to increase sub bass response while limiting driver excursion. This

method produces less distortion and minimizes driver strain while

extending sub bass response to the lower limits of human hearing.

Special effects will have greater clarity, greater power and greater

impact.

Each 18-in woofer is individually accessible via a two-terminal

barrier strip, which accomodates bare wire, tinned leads or spade

lugs, located on the side of the enclosure for convenient access in

cramped installation areas.

The use of multiple SB284C’s provides even greater output capability

and further extends low frequency response. All external compo-

nents feature a textured black finish to eliminate the reflection of

light through perforated cinema screens.

1.50

7.28

RIGHT SIDE

FRONT BACK

.81

1.06

1.50

5.28

29.75

23.75

LEFT SIDE

48.25

TOP

SB284C

ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED.

BOTTOM

510136

exp 1/15/97 shb

THX is a registered trademark of Lucasfilm,. Ltd.

CINEMA SERIES

One Main Street, Whitinsville, MA 01588 • (508) 234-6158 • FAX (508) 234-8251 • Email [email protected] • Web http://www.eaw.com

EAW products are continually improved. All specifications are therefore subject to change without notice. • SB284C PUB#888134 Rev(A)/6/1/99 • Printed In USA

THX is a registered trademark of Lucasfilms Ltd.

Technical Specifications SB284C

DESCRIPTIVE DATA

Sub Subsystem & Loading 2x 18-in, vented

Cabinet Type (shape) Rectangular

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

Finish Textured Black

Connectors Dual-terminal barrier strips

Grill Vinyl Coated Perforated Steel

NOMINAL DATA

Frequency Response (1 Watt @ 1m)

±3 dB 30 Hz - 300 Hz

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

99

Impedance (Ohms)

4

Power Handling, AES Standard (Watts)

1600

Calculated Maximum Output (dB SPL @ 1m)

Peak 137.0

Long Term 131.0

Dimensions Inches Centimeters

Height 29.75 75.6

Width 48.25 122.6

Depth 23.75 60.3

Weights Pounds Kilograms

Net Weight 218 98.9

Shipping Weight 233 105.7

COMPONENTS & CONSTRUCTION

The SB284C is a high output, extended bandwidth subwoofer

optimized specifically for cinema use. It features dual high-power

18-in low frequency transducers, each mounted in its own optimally

vented subenclosure.

The enclosure is constructed of 3/4-in Medium Density Fiberboard

except for the baffle plate which is 15mm, void-free, cross-grain-

laminated birch plywood. Extensive internal bracing is employed to

minimize panel resonances resulting from the large acoustical

energies generated within the enclosure and maximize acoustical

energy transfer.

Input connectors are 2-terminal barrier strip, designed to accommo-

date bare wire, tinned leads or spade lugs. The enclosure is finished

in textured black non-reflective paint.

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