EAW SB284C Bedienungsanleitung

TECHNICAL SPECIFICATIONS SB284C

CINEMA SYSTEMS

DESCRIPTIVE DATA

Part Number 999082

Sub System & Loading 2x 18-in, vented

System Crossover 100 Hz recommended

Recommended High-Pass

Frequency (24 dB/octave) 20 Hz

Cabinet Type (shape) Rectangular

Enclosure Materials 3/4-in Medium Density Fiberboard,

15 mm birch baffle

Finish Textured black

Connectors Dual-terminal barrier strips

Grille Vinyl coated perforated steel

Dimensions inches millimeters

Height 29.75 756

Width 48.25 1226

Depth 23.75 603

Weights pounds kilograms

Net Weight 218 98.9

Shipping Weight 233 105.7

PRODUCT INFORMATION

APPLICATION

• For subwoofer channel of cinema soundtrack

• THX® approved

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 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 bar-

rier strip, which accommodates 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.

TECHNICAL SPECIFICATIONS SB284C

1.50

7.28

RIGHT SIDE

FRONT BACK

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

NOMINAL DATA

Frequency Response

+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

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 optim-

ally 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 accom-

modate bare wire, tinned leads or spade lugs.

All external components feature a textured black finish to eliminate

the reflection of light through perforated cinema screens.

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. •PUB #888134 (B) MAY, 2001 •Printed in USA

THX is a registered trademark of Lucasfilms Ltd.

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