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. • PUB# CR57F/2/22/97 • Printed In USA
CINEMA SERIES
Technical Specifications CR57F
DESCRIPTIVE DATA
Part Number
999400
LF Subsystem & Loading
1 x 15" vented
HF Subsystem & Loading
1 x 1" compression driver
on 90 x70 C.D. horn
Number of Audio Bands
2-way
Type of Audio Bands
Full Range
Powering Mode
Passive
Cabinet Type (shape)
Rectangular w/slanted baffle (20
°
)
Enclosure Materials
15mm birch plywood
Finish
Flat Black
Connectors
2 terminal barrier strip
Suspension Hardware
(7) 3/8-16 threaded inserts
Grill
Black cloth
Options
wall mount bracket (606067)
NOMINAL DATA
Frequency Response (Hz)
±
3 db
45 Hz – 19 kHz
Efficiency / Axial Sensitivity (dB SPL/1 Watt/1m)
Full Range Passive
98
Impedance (Ohm)
Full Range Passive
8
Power Handling (Watts)
Full Range Passive AES Standard 500
Calculated Maximum Output (dB SPL)
Full Range Passive Peak
131.0
Full Range Passive Long Term
125.0
Nominal Coverage Angle / -6 dB points (degrees)
Horizontal
90
Vertical
70
Dimensions
Height
17.25 in
438 mm
Width
29.75 in
756 mm
Depth (Top)
15.25 in
387 mm
Depth ( Bottom)
10.5 in
267 mm
Weights
Net Weight
56 lb
25.5 kg
Shipping Weight
64 lb
29.1 kg
COMPONENTS & CONSTRUCTION
The CR57 two-way full range cinema surround loudspeaker system
employs one 15-in cone transducer mounted in an optimally vented
enclosure and one 1-in exit, titanium diaphragm compression driver
mounted to a 90
°
x 70
°
dispersion pattern constant directivity horn.
The subsystems are integrated with a complex, multicomponent,
passive crossover/filter network.
The enclosure is constructed of 15mm thickness, void-free, cross-
grain-laminated birch plywood. Extensive internal bracing is em-
ployed to minimize panel resonances resulting from the large
acoustical energies generated within the enclosure while maximiz-
ing acoustical energy transfer into the audience area. A total of
twelve 3/8"-16 threaded mounting points facilitate a wide variety
of mounting option.
The input connector, located on the top of the enclosure, is a two-
terminal barrier strip designed to accommodate bare wire, tinned
leads or spade lugs. The enclosure is finished in flat black polyure-
thane and includes a black cloth grill. For safety, the grill is attached
with multiple threaded fasteners.
