The Artusa Hall Performing Arts Centre
USA - Greater Atlanta Christian School (GACS) is a PK-12 Christian school in Norcross, Georgia serving over 1,600 students. Since it was first established over 50 years ago, GACS has earned itself a reputation for utilizing advanced technologies in its quest to further the learning needs of its students. This dedication to providing high quality creative and technical facilities to support its arts and media curriculum, has led the school to invest in three Alcons Audio pro-ribbon sound reinforcement systems for its venues.
The first of the three spaces to be installed with an Alcons system was the Artusa Hall Performing Arts Centre, a former chapel which the school repurposed into a performing arts venue. This included completely rebuilding the interior, adding a self-supporting timber framed balcony, and increasing the audience capacity from 700 to 950. The Alcons LR7 pro-ribbon micro line-array was selected.
“They wanted something that would deliver great sound for everything from solo classical recitals to drama, ballet, orchestra, choir and bands, including renting the venue to outside performers,” says Alex Fleming of Atlanta-based Lodestar Labs.
The Artusa Hall system comprised arrays of six LR7/90 (6.5”) micro line array modules and two LR7B single 12” bass modules per side, flown just in front of the proscenium arch. Two, floor mounted BC332 cardioid subwoofers (18” front / 15” rear) per side add extra low end where required. A single SR9 double 5” in-fill monitor provided front fill for the first few rows, and four 6.5” TS3 full range monitors provide the under-balcony fills. Two VR12i and two VR12iM mid-size versatile 12” monitors deliver high quality stage monitoring. The whole system is powered and controlled by four Sentinel10 amplified loudspeaker controllers.
The technical team at GACS y chose Alcons to replace existing, underperforming PAs in two more of its venues, the Clifton Jones Theatre and the Long Forum.
“Some of the outstanding features of the Alcons pro-ribbon systems are the fast transient response and significantly reduced distortion commonly associated with compression driver-based systems,” says Alex, “Together they deliver the most natural reproduction of music, effects and the human voice.”

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