A view of the stage during the 23rd annual Knoxville Heart Gala at the city's convention center.Knoxville, TN (April 25, 2008)--Knoxville recently hosted its 23rd annual Knoxville Heart Gala at the city's convention center, with this year's theme being "Wild at Heart." The event, which raised over $600,000 for the American Heart Association, was a success--thanks in part to the sound reinforcement of audio/ video production services and design firm Sound Ventures.
The ballroom was configured to include a round, rotating stage in the middle of the space, with areas for dancing and seating surrounding the stage. To provide a 360-degree sound field emanating from the center of the room, the Sound Ventures crew deployed a sizable loudspeaker setup consisting of enclosures from WorxAudio Technologies' MaxSeries and TrueLine.
According to Scott Grimsley, president of Sound Ventures, "This year's Heart Gala attracted approximately 600 people and the activities that took place during the evening were quite varied. There were several speakers, such as Duke University's head football coach David Cutliffe, who served as honorary chairperson; a silent auction, dining, as well as dancing to live music provided by Burning Las Vegas, a great funk, rock, rhythm & blues soul band. This range of activities required a sound system that was equally adept at handling dialog as well as being a full-blown live performance setup, and this is the sort of project our WorxAudio enclosures handle very well."
The Sound Ventures crew, which consisted of Grimsley serving as production manager, system technician Sean Walsh, plus Aaron Fenner mixing at FOH (front of house), flew four arrays, each consisting of four True Line V8-PMD1 self-powered, compact line array elements-facing out toward the four corners of the room. The flown loudspeaker clusters were supplemented by four True Line V10-PMD3 line array enclosures that served as front fills, positioned on the floor facing out toward the room's four corners.
Sub bass chores were assigned to four TL218SS subwoofers placed on the floor in front of the stage area facing into the room. Each subwoofer was powered by a single Crown Macro-Tech MA-3600VZ power amp. Rounding out the loudspeaker ensemble were four UltraMax M1-P monitors for the guest speakers and entertainers onstage.
At FOH, engineer Aaron Fenner mixed sound using a Midas Venice 320 32-channel analog console configured with 24 mono and 4 stereo channels. An Ashly Protea 24.24M Matrix Processor was used for time alignment of the speaker system while phase alignment of the drivers, crossover points, and other driverack responsibilities were handled by the dual signal processors integrated into the WorxAudio PMD series power modules.
"The WorxAudio loudspeakers really did the job right," noted Grimsley. "Creating a 360-degree sound field is quite a challenge, as you need to be really careful to avoid phasing issues. We were able to achieve very even coverage from the front of the stage to the back of the room in all directions."