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. • PUB# MC4953B/11/16/98 • Printed In USA
Technical Specifications MC4953B
DESCRIPTIVE DATA
LF Subsystem & Loading
2x 15-in, vented
MF Subsystem & Loading
2x 10-in, horn-loaded
HF Subsystem & Loading
1x 2-in exit compression driver
on CD horn
Number of Audio Bands
3-way
Type of Audio Bands
Full Range
Powering Mode
Biamplified
System Crossover
Active LF/MF - 300 Hz; Passive MF/HF
Recommended High-Pass
Frequency (24 dB/Octave)
30 Hz
Cabinet Type (shape)
Rectangular
Enclosure Materials
15mm Baltic Birch Plywood
Finish
Flat Black
Connectors
2x 2-Terminal Barrier Strips (LF and MF)
plus Bind Posts (HF, jumper cable
included)
NOMINAL DATA
Frequency Response (1 Watt @1m)
±
3 dB
SMPTE/ISO "X" curve
35 Hz - 18 kHz
Axial Sensitivity (dB SPL, 1 Watt @1m)
LF
101
MF/HF
108
Impedance (Ohms)
LF
4
MF/HF
4
Power Handling, AES Standard (Watts)
LF
1000
MF/HF
600
Calculated Maximum Output (dB SPL @ 1m)
LF Peak
137.0
MF/HF Peak
141.8
LF Long Term
131.0
MF/HF Long Term
135.8
Nominal Coverage Angle/-6 dB points (degrees)
Horizontal
90
Vertical
40
Recommended Complementary Systems
Sub
SB284C
Dimensions
Inches
Centimeters
Height
68.25
173.4
Width
36.0
91.4
Depth
30.0
76.2
Weights
Pounds
Kilograms
Net Weight
375
170.0
Shipping Weight
405
183.0
COMPONENTS & CONSTRUCTION
The MC4953B is a biamplified, three-way, very high-output, full
range three section loudspeaker system intended for use in behind-
screen cinema applications. The optimally vented LF enclosure
houses 2x 15-in woofers in a "push/pull" configuration. Dual horn-
loaded 10-in midrange drivers are housed in a separate MF enclosure.
A 2-in exit high frequency compression driver loaded with a 90
°
x
40
°
constant directivity horn is mounted above the MF enclosure.
The system requires the use of an external active electronic
crossover between the LF and mid/high sections. The mid/high
component includes a internal passive crossover/filter network.
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 func-
tions.
Input connectors for the LF and MF sections are two-terminal barrier
strips. A "jumper cable" is included to continue the signal chain to
the HF section. Bind posts for the HF section are located directly on
the compression driver. The input panels are located on the sides of
the enclosures for convenient access in cramped installation areas.
The cabinets are constructed of 15mm void-free, 18-ply-to-the-
inch, Baltic birch plywood. Extensive internal bracing is provided to
minimize panel resonance resulting from the large acoustical
energies generated within the enclosure. The enclosure and all
external parts are coated with a flat black polyurethane finish.
