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Xi’an Olympic Sports Center Gets EAW System

A new 18,000-seat sports arena in China, the Xi’an Olympic Sports Center, is covered via a massive EAW Radius loudspeaker system.

A new 18,000-seat sports arena in China, the Xi’an Olympic Sports Center is covered via a massive EAW Radius loudspeaker system.
A new 18,000-seat sports arena in China, the Xi’an Olympic Sports Center is covered via a massive EAW Radius loudspeaker system.

Xi’an, China (June 18, 2020)—China’s new Xi’an Olympic Sports Center is a 18,000-seat venue that can handle all kinds of performances, whether on the playing field or by entertainers. Ensuring that all those seats can hear everything clearly is an audio system based around EAW’s Radius (RSX) Series loudspeakers and subwoofers.

For the project, integrators installed six clusters of 44 EAW RSX212L active loudspeakers and eight EAW RSX18F single 18-inch active subwoofers in six arrays. Four EAW RSX129 active speakers were installed under the in-arena scoreboard and four single 12-inch EAW VFM129i moving wedges were configured for the rostrum.

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“All of the speakers were installed under the catwalk of the stadium, which makes it difficult to see their operational status,” says system designer Zhang Xianjun. “Thanks to the self-detection of EAW’s RSX series active loudspeakers, the sound engineers can quickly access their operational- and signal-status. The catwalk of the stadium is an asymmetric-hexagon structure, so it is harder for us to control installation angles of loudspeaker clusters. We were able to overcome this by using EAW original flyware, fixing the arrays under the catwalk by 3T electric hoist. We used two safety cables and the horizontal coverage is adjustable. With Radius series speakers, we have much less sound diffusion and direct sound coverage is improved.”

Loocated in Xi’an International Trade and Logistics (ITL) Park, the stadium is the main venue for the opening and closing ceremonies of the 14th National Games, as well as various events including basketball, volleyball, ice hockey and gymnastics

“In designing the sound system, the goal was to provide the same frequency response for each listening area and to address any unevenness throughout the audience areas,” says system designer Zhang Xianjun. “We first built a 3D model for the stadium in AutoCAD, according to the architectural drawings. We then imported the model into EASE4.3 acoustic analysis software, followed by a 1:1 EASE model setup. We choose EAW’s RSX line array for its strong directivity, ability to optimize speech intelligibility and its overall fantastic sound.”

Eastern Acoustic Works • www.eaw.com

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