Easley, SC (September 24, 2004)–Rock Springs Baptist Church has grown at an amazing rate in recent years, and to answer all the needs of the sizable congregation, the new facilty includes a 3,500-seat auditorium, a 300-seat choir room, a school of the arts, and multiple practice rooms. Rock Springs turned to Gainesville, GA-based dB Audio and Video, Inc. to model the acoustics for the main sanctuary, in addition to designing and installing the audio/video systems. For that process, the company recommended a considerable Sound Physics Labs loudspeaker system.
dB Audio and Video was also responsible for installing distributed video systems throughout the campus, as well as integrating audio and video systems into the choir and orchestra rooms. Mike Hedden, president of dB Audio and Video, noted that while the church needed to expand its worship space, the pastor did not want to lose his one-on-one relationship with the audience. “One of the challenges was that the church was moving out of a 1,000-seat auditorium into a room that is over three times that size,” he said. “The pastor really likes to connect with his people and he likes to be able to see them. He wanted the congregation to comfortably understand and hear him. He wanted a bigger room, but he didn’t want to destroy that intimacy.”
Tackling that issue, db installed a center cluster is made up of three SPL-td1 loudspeakers, two SPL-td1 subwoofers, and supported by SPL-trik boundary compliant speakers on the left and the right and SPL-runts utilized as downfills. Low-frequency reinforcement is supplied through a pair of B-DEAP32 subwoofers. A wrap-around balcony encircles the fan-shaped seating area. A delay ring consisting of SPL-runts is installed into the upper balcony. The large choir loft utilizes “runts” for choir fold-back monitors, enabling a high degree of pattern control and thus placing energy right where the choir is seated.
Sending audio to those boxes are a pair of Yamaha O1V-96 digital audio consoles which are networked together with additional outboard microphone preamps, providing a total of 64 channels. The microphone system features Sennheiser Evolution Series wireless microphones, as well as a Sennheiser i42-C podium mic.
The choir room features a stadium style rake-seating plan that can accommodate up to 400 people. The loudspeaker system for this room, as well as the orchestra’s rehearsal room, includes SPL-runts and SPL-td1 subwoofers. The choir room’s electronic acoustical enhancement system was designed by dB Audio and Video’s chief engineer, Ivan Beaver. dB has been involved with electronic enhancement systems for several years and reportedly owns the only portable LCS VRAS system in the country. “While we are completely committed to the concept of electronic enhancement, we regularly run into customers who want the technology but cannot find the funding,” Beaver said.
dB’s wanted to create an electronic enhancement system that also could emulate the new worship center’s choir loft in the choir room, allowing vocalists to use the rehearsal space but feel like they were in the auditorium. Utilizing the TEF-20, Polar ETC measurements where made in several locations of the new worship center’s choir loft. The Polar ETC is unique in that it allows one to not only see reflections but also the azimuth and elevation information of the reflections. Utilizing this data, the firm replicated these ETCs in the choir rehearsal room, which is a mirror image of the choir loft. The intent was to not only increase overall reverberation, but to also increase some of the larger room’s reflections. The low-Q loudspeakers used in the enhancement system tasks are positioned not only above, but also down laterally to help accomplish this goal. Signal processing is handled through the Yamaha O1V-96 and Audix microphones.
Sound Physics Labs