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The Coach House Solves Challenging Room with Renkus-Heinz IC2 

For more than 30 years, The Coach House Concert Theatre in San Juan Capistrano has hosted an ongoing roster of regional and international artists. Until recently, the 480-seat hall has struggled with also a poor sounding room. ESP Management's Brian English explained that the room's acoustical challenges have been legendary.

"The room is very difficult," Brian said. "It has a low ceiling, and the stage is asymmetrically placed, so there's a larger seating area at house left than at house right. The areas near the bar are underneath a very low ceiling because of VIP booths upstairs. So it's very difficult to cover the place evenly. The house mix position is up in the balcony, which was horrible with the original PA system because the engineer was out of the coverage area and couldn't hear."

Addressing those challenges would require a new approach, and Brian collaborated with Coach House management and Renkus-Heinz's Ralph Heinz to design a new sound system based on the digitally steerable IC2 from Renkus-Heinz. Brian points to IC2 as the ideal solution to meet the room's challenges.

"A lot of acts specify a line array, and the Coach House team wanted to be able to meet that need," he noted. "But because the ceiling is so low, you can't really do a conventional line array." Together, Brian and system installers DJE Sound and Lighting of Lake Forest, CA were able to meet the challenge. "I flew four clusters of two Renkus-Heinz IC2 steerable arrays per cluster, mounted close to the ceiling so we didn't have sightline issues," Brian continued.

"We were able to focus each array exactly where I wanted them to go. You can have up to four steerable beams out of each enclosure, so we were able to take one tight beam and shoot it right through the windows of the VIP area without it splashing all over the wall around the window. We focused a beam at the face of the engineer upstairs, so for the first time in 30 years, you can hear the PA from the mix position."

The main left/right system on the downstage corners fires straight out. The secondary left/right cluster is 10 ft upstage, toed out at a 45° angle, focused as outfills. "If you walk around the room past the four clusters, you will hear left-right-left-right, so you're always hearing the stereo image in the seated areas," Brian said. 

Six Renkus-Heinz IC212S-R subwoofers are positioned in the centre, under the stage, providing low frequency content for the main left/right system. Under the stage at the outside corners are two aux-driven IC118S-R powered subwoofers, each with a single 18-inch driver, extending the bottom well below 30 Hz. "The stage is a four-inch-thick concrete slab, so low-frequency buildup and resonance weren't a problem," said Brian. 

Onstage, ten Renkus-Heinz RH123 cabinets provide crystal-clear stage monitoring. The RH123 is a self-powered, three-way loudspeaker in an enclosure as compact as most two-way designs. Featuring a dual-angle (30 or 45°) cabinet, it makes an excellent low-profile, unobtrusive floor monitor.

Both Brian and venue owner Gary Folgner are delighted with the results. "I was really impressed with how well we were able to cover the entire place," said Brian. "I can't name another system I could have put in that would have done what the Renkus-Heinz system did. In addition, its footprint is perfect; it didn't interfere with the sightlines, which occur at several angles. And because of its powerful output, we were able to hit SPL levels that they've never heard in that room before."





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