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Glass Cactus Smoothes Out with JBL VerTec

FOH Staff • News • February 27, 2007

GRAPEVINE, TX — Clair Brothers Systems recently installed a WJHW-designed audio system at the new Glass Cactus nightclub in Grapevine, Texas, that includes JBL VerTec line arrays, AE Series loudspeakers and Control 29AV speakers. Built on the grounds of the Gaylord Texan Resort and Convention Center in Lake Grapevine, the $16 million Glass Cactus covers a total of 39,000 square feet and accommodates approximately 1,500 people. The sound stage features musical acts ranging from country to blues to rock. The Glass Cactus regularly showcases local talent and top-named national acts.

True to its name, the design of the Glass Cactus includes an abundance of glass surfaces. While these make for an aesthetically pleasing environment, they pose a challenge from an acoustic standpoint. "The west wall is covered in glass and stone, so dealing with the hard surfaces was a major challenge," said Mike Mason, project manager, Clair Brothers.

To counteract the hard surfaces (including the hardwood and concrete floors), leading design firm WJHW performed computer modeling to balance the presence of the natural finishes with the concealed acoustical treatment. Because of the dimensions of the Glass Cactus, a line array system was a natural choice. "The seating area is rectangular, longer than it is wide, so we didn't have a lot of wide angles to address," Mason added. "Line arrays are a popular solution for these types of settings."

On each side of the stage, Clair Bros. installed a JBL VerTec array containing six VT4888 midsize and three VT887 compact line array elements per side. Six JBL ASB6128V subwoofers were placed underneath the stage for low-frequency reinforcement, while JBL AM6212 loudspeakers were installed to provide delay fills for the large first floor/under balcony area. Additionally, 15 JBL Control 29AV1 loudspeakers are situated in the outdoor patio area of the club.

According to Mason, "We were able to quickly tune the system and the sound has proven to be very reliable."

For more information, go to www.jblpro.com.

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