Nov.1, 2007. Clair Brothers from Lititz PA installed a new sound system at Radio City Music Hall in New York City just in time for the holidays. The Music Hall opened to the public on December 27, 1932 with a spectacular stage show, featuring Ray Bolger and Martha Graham. The opening was meant to be a return to high class variety entertainment. Radio City has 5,933 seats for spectators; it became the largest movie theater in the world at the time of its opening. Designed by Edward Durell Stone, the interior of the theater, by Donald Deskey, incorporates glass, aluminum, chrome, and geometric ornamentation. The Great Stage, measuring 66.5 feet (20 m) deep and 144 feet (44 m) wide, resembles a setting sun. Its system of elevators was so advanced that the U.S. Navy incorporated identical hydraulics in constructing World War II aircraft carriers. According to Radio City lore, during the war, government agents guarded the basement to assure the Navy's technological advantage. The theater is also home to the Radio City Christmas Spectacular, a New York Christmas tradition since 1933, and to the women's precision dance team known as The Rockettes. The Music Hall is the regular home of the Daytime Emmy Award ceremony (though the 2006 and 2007 shows were held in Los Angeles) and the Tony Awards, is the frequent site of the annual MTV Video Music Awards (although the ceremony has occasionally been held since the 1990s in Los Angeles, Miami and was in Las Vegas in 2007), and has often been the venue for the Grammy Awards on years when New York has won the bid to host the show, although Madison Square Garden, owned by Cablevision, hosted the Grammys in 2003 while the Staples Center in Los Angeles most recently hosted the awards in 2007. In addition, Radio City Music Hall is also the regular home of commencement ceremonies for Hunter College and Pace University’s New York City campus. The Great Stage has been home for the NFL Draft in 2006 and 2007, and will do so again in 2008. The system is based around two columns and a center cluster of JBL VerTec Line-array boxes.
A center cluster of eight VT4887As supplements the main system, while two arrays of eight VP4880A arrayable subwoofers each supply extended low-frequency output. Above each side of the stage hang 15 VerTec VT4889 full-size line-array elements, while a VT4800-DA array frame used to support a pair of VT4887A compact line-array loudspeakers beneath each main array. The entire system is processed with Dolby “4” Series processors and powered by QSC PL3 Series amplifiers. Supporting the new hangs are 42 custom  EAW under-balcony  speakers; the RC 646 is a JF-80 modified for Radio City (hence the “RC”).
Twelve L-Acoustics ARCS were provided for stage-fills and front-fills.