By PSW Staff • December 7, 2016 Fulcrum Acoustic CS121 passive cardioid subwoofers at Oklahoma City's Chesapeake Energy Arena The Chesapeake Energy Arena, Oklahoma City’s premier venue for large events and entertainment, is primarily known as the home of the NBA’s Oklahoma City Thunder. The Arena modernized its sound system prior to the Thunder’s 2016-17 season with the first large scale deployment of Fulcrum Acoustic‘s CS121 passive cardioid subwoofers and the NBA’s first permanent installation of EAW’s Anya adaptive-array system. Designed by Marsh/PMK’s Jerrold Stevens and installed by Ford AV, the advanced technology audio solution gives the Oklahoma City Thunder a sound to match their name. “The sound system needed excellent intelligibility, fidelity, output and bandwidth to enhance the overall fan experience and become more competitive with other NBA arenas, ” Stevens explains. “Cardioid was a huge factor in the arena design,” Stevens says. “Vertical subwoofer arrays are ideal for providing smooth coverage to the seating bowl and keeping sound energy off the floor. However, the large centrally located scoreboard precluded any loudspeakers directly over center court. Forced to hang subwoofer arrays around the scoreboard’s perimeter, I knew cardioid patterns were necessary to minimize interference between arrays.” Stevens was familiar with Fulcrum’s passive cardioid line array modules and their ability to eliminate excessive rear low frequency radiation without requiring additional drivers, amplifiers or signal processing channels. “When Fulcrum co-owner Dave Gunness told me about their new line of passive cardioid subwoofers, the timing couldn’t have been better.” Stevens’ design includes four vertical arrays of six Fulcrum CS121 21-inch subcardioid subwoofers above the scoreboard’s four corners to complement the Anya columns above its four sides. Stevens also deployed two pairs of delayed fill CS121 subwoofers for low frequency coverage in the upper corners of the arena. “I’m so glad Fulcrum figured out passive cardioid subwoofers in time for this amazing project,” says Stevens. “They eliminated the need for an additional ring of active cardioid cancellation subs above the scoreboard, and helped deliver system cost and performance benefits that made for one very happy customer.” Fulcrum Acoustic Comments Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Tagged with: Fulcrum Acoustic Installations Loudspeakers Subwoofers · all topics Subscribe to Live Sound International Subscribe to Live Sound International magazine. Stay up-to-date, get the latest pro audio news, products and resources each month with Live Sound.