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Focusrite RedNet Deployed By ATK Audiotek For Super Bowl LIV Audio

RedNet gear instrumental in helping pull together the wide range of components and sub systems throughout the stadium.
Focusrite RedNet D64R 64 x 64 MADI/Dante I/O interfaces connect the ATK Dante network with off-network production and broadcast trucks, including resolving the audio to external clocks and sample rate conversion. (All photos by Chris Mayes-Wright)

At Super Bowl LIV (54) at Hard Rock Stadium in Miami Gardens, ATK Audiotek deployed Dante-network-enabled RedNet gear from Focusrite Pro to help manage the audio complexities of both the game and the live stadium concert during halftime.

Two large-scale sound systems were in use – a flown house system and ATK’s field cart system. In addition, ATK provided and operated the substantial backbone of routing equipment and input/output interfaces to patch all the of the various system facets together, and allow audio to flow from inputs to mix positions, to amplifiers and loudspeakers, and also to external partners such as broadcast and recording trucks. “That’s where having Dante and RedNet comes in to play.” says ATK’s Kirk Powell, who led audio production for the event.

Once the structure of the system was plotted out, the preconfiguration was implemented by system designer and front of house mixer for the entertainment aspects of the 2020 Super Bowl, Alex Guessard, in a 50-foot-by-50-foot space in the ATK shop in California. While requiring a methodical approach for such a complex system, updating firmware, naming channels and making subscriptions on RedNet devices proved straightforward due to Dante Controller and RedNet Control.

Kirk Powell (left) led ATK Audiotek’s audio operation during Super Bowl LIV, while ATK’s Alex Guessard was the system designer and FOH mixer for the entertainment aspects of the Super Bowl.

“In the shop, you can verify the patch is working by just running a 10-foot cable,” explains Powell. “It’s so much easier than having to walk to the catwalk and back down again, just to check a cable or connection.” Once the whole stadium worth of equipment is configured and operational in one place, the deployment process is as simple as positioning the racks and connecting the fiber or network cables.

ATK racks were positioned in nearly every corner of the stadium. Columns of input and output interfaces, amplifiers and network switches activate all over the stadium. In each position, RedNet units were performing various operations. Nodes at grass-level, at each corner of the field, comprised of RedNet MP8R, RedNet A16R and RedNet D16R units.

Focusrite RedNet interfaces, shown here in the skybox FOH mix position for Super Bowl LIV, were deployed throughout the stadium.

Also within the ATK remit is sharing audio with the various broadcast trucks and mobile production facilities on site. Powell and Guessard have devised a standardized way of interfacing with all of these external partners via RedNet D64R 64×64 Dante to MADI interfaces. Each partner can be responsible for the clocking of their respective digital audio systems.

“The RedNet D64Rs are really good because they allow us to create different islands,” Guessard says. Each island (or truck) supplies a word clock via BNC to the RedNet D64R responsible for transporting their respective MADI signals where on-board sample-rate conversion allows for the MADI channels to be transported at the desired sample rate.

The role of Patchmaster was handled for Super Bowl LIV by Luis Montes from a nook in the underbelly of the Hard Rock Stadium. As the central hub of ATK’s network, every home run from each nodes’ network switches comes to Montes’s patching world via an overhead bundle of cables as wide as a water main. Montes used a RedNet AM2 two-channel D-A converter with line-level connections and a headphone output to audibly monitor signals on the network for source verification and quality control.

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One of the four racks of Focusrite RedNet interfaces in each corner of the field during Super Bowl LIV to provide input and output to the ATK Audiotek Dante networks, including the adjacent amplifiers.

“It’s a very adrenaline-filled show,” says Guessard, “From the moment the halftime whistle is blown we have six minutes to deploy and connect everything — the stage gets set up, the speaker carts get wheeled on, and all the artists have to be set up on the stage. It’s the same for lighting, and the same for video.”

After the 12-minute performance — this year featuring Jennifer Lopez, Shakira and surprise guests Bad Bunny and J Balvin — another commercial break covered the stage strike and, as Powell says, “the stadium has to look like nothing happened.”

Guessard conclude, “There’s no way we could do what we do today without a networked system. With the channel counts that we have and the mass distribution, it’s not feasible.”

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