Costa Mesa/Signal Hill—Apr 25, 2018
QSC & Adaptive Technologies Group Tackle Big Room Immersive Sound at CinemaCon
Two leading cinema equipment manufacturers collaborate on enhancing the Colosseum’s immersive sound experience at CinemaCon
a leading global manufacturer of cinema solutions, and Adaptive Technologies
group, a provider of professional installed audio and video solutions, teamed
up as part of the effort to temporarily convert the Colosseum at Caesars Palace
into one of the largest cinemas equipped with Dolby Atmos immersive sound.
is a global tradeshow geared specifically for the motion picture theatre owner.
The show expects to attract more than five thousand industry professionals. The
Colosseum is where multiple studios promote their upcoming releases to the
world’s theatre operators.
One of the great challenges inherent with a project of this magnitude is
temporarily and safely installing all of the required overhead surround loudspeakers
high above the floor without impeding sightlines for patrons sitting in the
upper mezzanines. This year at CinemaCon, it was decided to raise the trusses
(to which the overhead loudspeakers are attached) even higher to a “trim height”
of 70 feet off the floor, to minimize visual obstruction for the upper level
that distance, even very high power cinema surround loudspeakers would lose
pattern control and sound pressure level at the floor seating area, to the
point where it would be difficult to meet the Dolby Atmos specification for SPL
the extensive QSC loudspeaker catalog offered a solution. Sixteen pairs (32
loudspeakers in all) of WL2102-w WideLine-10 loudspeakers are clustered
together, each pair operating as a single unit. The big challenge was that a
pair of these speakers weighs over 160 pounds, and there exists no bracket that
can support that kind of weight and also offer the precise aiming angle
required to create the narrow vertical pattern of the combined unit.
Working with Adaptive Technologies Group, a custom yoke-style bracket was
designed that could safely support the load.
small line array clusters to the system created a level of complexity that
rippled through the entire system design,” says Jon Graves, QSC product manager
and the project leader for the audio system in the Colosseum at CinemaCon. “In
order to accommodate all of these loudspeakers in their new positions, we had
to re-engineer the Q-SYS network and add up to 77,000 more watts of power.”
solution now uses two long ceiling trusses running front to back, with each
truss suspending eight pairs of the WideLine-10 loudspeakers working as Dolby
Atmos overhead surrounds.
“When Jon Graves approached us a few
months ago, we didn’t hesitate one second to come up with the best suitable
solution for this impressive temporary Dolby Atmos installation,” said Olivier
Frans, Global Cinema Solutions Manager at Adaptive Technologies Group. “We’re
absolutely thrilled to partner with QSC and CinemaCon to make this
extraordinary immersive sound experience happen.”
Adaptive Engineers designed an adjustable yoke mount that supports two speakers
from one single point. Since minimal mounting points were available they had to
use the M6 inserts on both top and bottom of the speakers. Yoke arms are
secured on these top and bottom inserts. By means of slotted holes on the arms,
the speaker allows for 0 degree, 2 degree and 3 degree tilt angles. Due to the
minimal size of the inserts, a 3rd and 4th attachment was required to fully
secure the speaker to the yoke mount. A heavy-duty safety cable was then
attached to an eyebolt in the back of the speakers, and the other end was wrapped
around the box truss for use as a redundant safety.