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Orange Bowl 2009


Aero Series loudspeakers strut their stuff before national television audience

 

This year's Orange Bowl football game between the Virginia Tech Hokies and the Cincinnati Bearcats was a spectacular event in and of itself, but the real action came during the much anticipated halftime show. Headlining this year's event was The Doobie Brothers. Playing to a capacity crowd of better than 75,000-not to mention a national TV audience-The Doobie Brothers' spirited performances were brought to life by the audio team at Interface Sound-using a collection of loudspeakers from the D.A.S. Audio catalog.

Based in Miami, Interface Sound Spearheaded by owner/operator Ralph Alvarez, has grown from a modest start in 1985 into one of the leading audio/visual, staging, and lighting companies in the Southeastern United States.For this year's Orange Bowl halftime show, Interface Sound constructed an audio system consisting of sixty D.A.S. Audio Aero 38A powered, 3-way line arrays and twelve Aero 182A 2k powered subwoofers that surrounded the playing field and faced out toward the stands.

Moving the equipment onto the field at halftime was no small accomplishment in and of itself, as Alvarez explains, "From the moment the whistle blew signaling halftime, we had exactly three minutes to get everything into position. This included two 32 x 16-foot stage platforms, which were on casters, as well as the dozen custom-made carts for the loudspeakers.

The actual sound reinforcement system on the field consisted of twelve mobile carts that were pulled into place at halftime by a dozen golf carts. Each cart consisted of five Aero 38A line array elements and one 182A 2K subwoofer. There were four carts on each side of the playing field, along with two carts at each of the end zones. Connections were accomplished by two cables between carts (one each for subs and highs) plus a single phase, 60-amp Hubbell connector plate. To maintain signal strength and integrity, twenty-four channels of RDL line amplification were placed into service.

"The biggest challenge of this project was signal routing and power consumption," says Alvarez. "D.A.S. Audio's self-powered products use Class D power amplification, so they don't require a lot of amperage. They're highly efficient. Combine this with the fact that the Aero's are very predictable in terms of their dispersion patterns, and you have a great system that ends up being easy to work with and provides great coverage throughout the entire arena. Everyone was really pleased with the system's performance."

Gary Hartung, FOH engineer for the Doobie Brothers, was equally enthusiastic about the D.A.S. sound system's performance. "Covering a 75,000 seat stadium from the field is no easy task," said Hartung. "I was impressed by the clarity and detail of the Aero 38A system. The blanket coverage of the entire bowl extended higher into the seats than I would have expected. This was, first and foremost, a college Bowl game and a TV show, and the Aero 38A system made my job much more enjoyable."

Text by Roger Maycock




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