CINEMA SERIES
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# MC4973/11/17/98 • Printed In USA
THX is a registered trademark of Lucasfilms Ltd.
Technical Specifications MC4973
APPLICATION
• For large and very large cinemas
• Triamplified 3-way screen channel loudspeaker
• THX®-Approved
PRODUCT INFORMATION
The MC4973 full-range screen channel loudspeaker system brings 3-
way design to the largest cinema exhibition spaces. This system
provides extremely high output and must be powered by a minimum
of three amplifier channels (triamplification).
The MC4973 has been approved by the THX division of Lucasfilm,
Ltd., for use in THX-certified theaters.
Three-way design dramatically advances cinema audio quality by
improving the naturalness and intelligibility of dialog, eliminating
distortion from excessive driver excursion and extending pattern
control into the lower octaves.
The MC4973 combines many of EAW’s breakthrough technologies
including the mathematically correct mid/bass horn with phase/
displacement plug, "push/pull" low frequency technology and the
"short-throat" high frequency horn.
The three component system includes 4x 15-in woofers in a "push/
pull" configuration, 2x horn-loaded 10-in mid frequency cones and
a horn-loaded 2-in exit high frequency compression driver.
The "push/pull" configuration of the LF section reduces mechani-
cally induced distortion at high output levels. To move air "forward"
(away from the enclosure) half of the woofers push while the other
half pull.
The MC4973’s mathematically-correct MF horn with phase plug
drastically reduces the horn-throat cancellation distortion that
degrades the naturalness and intelligibility of dialog. By dividing
the mid/high material between two horn-loaded subsystems, pat-
tern control over the entire frequency range is enhanced.
The HF element - an HK294 HF system - features a 2-in exit
compression driver loaded with a short-throat 90
°
x 40
°
HF horn
ensuring even distribution of HF information throughout the audi-
torium.
Each section is provided with its own input connector. The input
panels are located on the sides of the enclosures for convenient
access in cramped installation areas.
All external components feature a “dead” flat black finish to
eliminate the reflection of light through perforated cinema screens.
THX is a registered trademark of Lucasfilm, Ltd.
MC4973
exp 5/18/98 mka
ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED.
BOTH SIDES
INPUTS THIS
SIDE ONLY
HANDLES
SIDE
20.87
36.00
85.84
71.16
40.00
FRONT
29.75
31.44
TOP
