Arena Upgrades Sound System with L-Acoustics

Jul 17, 2008 4:39 PM


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photo of Arena

The 17,500-seat Arena in Glendale, Ariz., recently upgraded its sound reinforcement system with L-Acoustics line arrays, subwoofers and amplifier-processors. Built more than four years ago, Arena serves as home to the Phoenix Coyotes NHL franchise and Arizona Sting professional lacrosse team.

“We needed a P.A. system with outstanding vocal intelligibility and lots of headroom,” says Neil Rosenbaum, Arena’s production manager. “Our new dV-DOSC and dV-SUB arrays, augmented with the new SB28 subwoofers, provide all of that and more. The system delivers clear, perfect sound everywhere within the arena, with consistent, even coverage.”

The new array-based installation was conceived by Dan Palmer, L-Acoustics' U.S. national sales manager, in cooperation with Phoenix-based AVDB (Audio Video Design Build) Group, and is based on a configuration that Palmer designed in 2006 for the St. Pete Times Forum of Tampa, Fla. Installation of the Arena system was completed in just one month by AVDB Group.

AVDB Group director of engineering Nathaniel Hall and sales engineer Jamie Gillespie took Palmer’s original concept and built a job-specific L-Acoustics SoundVision model, adding several enhancements to the original prototype system design, including additional dV-DOSC cabinets and SB28 subwoofers.

photo of Arena loudspeakers

“The new system comprises a total of six identical line arrays made up of 12 dV-DOSC cabinets topped with two dV-SUB subwoofers,” explains Gillespie, who also mixes sound for Coyotes home games at the Arena. “The six line arrays are suspended from high-steel rigging points: two each facing the seating areas along the long sides of the arena, and one each for the ends. In addition, the design called for two groups of SB28 dual-18-inch subwoofer cabinets.”

The new system comprises a total of 72 dV-DOSC active two-way, 12 dV-SUB and 16 SB28 enclosures, with complete rigging. All of the L-Acoustics cabinets are powered by a total of 19 L-Acoustics LA8 four-channel/1,800-watt amplified controllers.

“The Arena’s sound system is completely turnkey,” Palmer says. “It was designed using our SoundVision software directly from the venue’s CAD drawings. Through detailed system modeling of the arena, we could verify coverage, acoustic accuracy and SPL levels deemed acceptable for the installation. Since the six dV-DOSC line-source arrays cover all audience levels—lower, middle/club and upper—no delay speakers are required; the two dV-SUBs per array provide mid-bass reinforcement, while the SB28s were included for enhanced sub-bass LF coverage. All rigging parts and system components were included with the system, dramatically minimizing fabrication and labor costs.”

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