July 20, 2010
This spring, the Twin Cities of Minneapolis
and St. Paul, MN celebrated
the opening of Target Field, home of
MLB’s Minnesota Twins. Featuring
a modern facade of glass and native
Minnesotan limestone, stunning
views of the Minneapolis skyline,
and fantastic sight lines, Target Field
holds approximately 39,500 spectators,
with nearly half of those seats in
the lower bowl.

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In the right outfield, the upper deck and lower deck are covered with the scoreboard-topping
JBL speakers and more under-deck units to cover the lower seating.
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The intimate-feeling bowl and
360-degree open concourses bring
an old-fashioned ballpark feel to
a chic new facility. But in terms of
audiovisual infrastructure, the facility
is entirely modern. Advanced AV
distribution runs over ethernet and a
fiber backbone, providing IPTV content
on 400 interior and 200 exterior
Insignia LCD displays and SunBrite
outdoor LCDs mounted with Chief
Manufacturing products. Adjacent
audio and video control rooms are the
heart of a truly wired stadium, where
press rooms, luxury suites, and even
elevator lobbies offer a high-tech feel
melded with a sophisticated aesthetic.
Throughout this networked stadium,
audio and video can be accessed from
multiple locations.
In terms of audio, the stadium is
a CobraNet facility, with Harman
Pro brands making up the bulk of the
distributed audio schematic. Wrightson,
Johnson, Haddon, and Williams
(WJHW) designed the system, and
TSI Engineered Systems of St. Charles,
MO performed the installation as a
subcontractor for Parsons Electric.
In the bowl, weatherized JBL AE
Series loudspeakers installed in the
uppermost reaches of the stadium canopy
have the longest throw to the box
seats below. “The way they were able
to connect and suspend those speakers
was a feat on its own,” said Paul
Murdick, VP audio visual for TSI.
Furthermore, “the bottom of
the canopy was enclosed, so we had
to work with the architect to create
openings to shoot sound down
through,” recalled WJHW principal
Jack McCallum. For the areas under
the club level, JBL created custom
down- and rear-firing cabinets to
augment forward-firing speakers.
Speaker placement required creative
design in other areas of the
extremely sleek stadium, as there was
no canopy to work with in the outfield.
In a first for WJHW, no speaker
poles were installed. Instead, speakers
were mounted along the top of the
scoreboard in left and centerfield to
cover the lower seating areas, while
additional boxes were placed below
the scoreboard to cover areas immediately below and slightly in front of
the structure.
In the right outfield, the upper
deck and lower deck are covered with
the scoreboard-topping speakers and
more under-deck units to cover the
lower seating.
Inside the stadium, all audio is distributed
over single-mode fiber using
CobraNet, connecting all systems
to the sound control and amplifier
rooms. Amplifier control and DSP
control are connected back to the
sound control room, where operators
have a bird’s eye view via a GUI that
TSI and the owner developed.
Twins history is woven throughout
the facility in a manner reflecting a
museum as much as a ballpark. The
Club Level includes Kirby Puckett
and Rod Carew venues, where gigantic
atrium spaces are covered by JBL
Control 300 ceiling speakers and concourses
are zoned with JBL 226CTs.
Suites are outfitted with JBL ceiling
speakers and JBL Control 29AV
speakers in the outdoor seating areas.
The Champions Club is a multimedia
extravaganza, with two Crestron
TPS 4000 touch panel control points,
drop-down Da-Lite tab-tensioned
screen, LCDs, and of course audio
distribution. Here and throughout
the facility, TSI partnered with Cisco
to provide IPTV access at any audio
point, and any control panel in the
facility, according to WJHW’s design.
Three amp rooms filled with Middle
Atlantic racks and additional local
rack facilities contain the BSS London
BLU series DSP, dbx processing, and
Crown CTs series amplifiers that make
up the audio system. Club level venues
offer Listen Technologies assistive
listening, and these and various other
spaces are outfitted with presentation
mic and laptop input panels. In the
sound control room, a Yamaha M7CL
console runs the show, and audio racks
of gear allow the engineers to patch
in and out of anywhere in the facility
with full control via Harman Pro
HiQnet System Architect software.
Similarly configured AV systems
were also installed in the Owners
Ballroom, Tour Theater, Legends
Club, 573 Club, the Town Ball Tavern,
and the high-end Metropolitan
Club. Already in its first season as
a venue, Twins fans are finding that
from the entrance plaza, through
the gates, along the concourses, in
the various entertainment and dining
venues, and most importantly in
their seats, they have the best possible
sound and video coverage. That certainly
makes it easy for them to root
for the home team.
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