China Clubs Go Active with D.A.S. Audio

	HJFB Bar in Zhoushan, Zhejian, China

Hangzhou Chuangda Stage Facilities, the authorized D.A.S. Audio dealer in Eastern China, coordinated the installation of new sound systems at two popular Chinese clubs in late 2010. With both projects, Jiang Chao, the company's general manager, and Xiao Zhao, its technical representative, chose D.A.S. active (self-powered) systems for these clubs, since power amplification was already optimized for the characteristics of each loudspeaker model. By choosing self-powered systems, they also saved space since they didn't have to find storage place for multiple power amps and, equally notable, system cabling was more streamlined.

At owner Ping Ge's "IN-Bar" in Taizhou, Zhejian, China, 24 D.A.S. Audio Avant 15A powered, two-way, compact full-range loudspeakers were deployed. A combination of six LX-218A powered, high performance subwoofers-three enclosures ground stacked in a center mono sub configuration and another three units placed as delay subs-deliver low frequency support. An additional five Avant 118A powered horn-bass subwoofers complete the setup. A D.A.S. Audio DSP-2060 processor handles time alignment and limiter duties.

Xiao Zhao says, "The Avant 15A includes a rotatable horn that enables one to control the unit's coverage. By rotating the horn, we were able to get the same coverage by flying the speakers horizontally-therefore, not compromising the view of the customers. The LX-218A and Avant-118As handle low-frequency reproduction beautifully. Having applied time-alignment parameters via the DSP-2060, these subs complement one another very nicely."

At the HJFB Bar in Zhoushan, Zhejian, China, owner Fang Hua elected to have a similar setup installed. For this project, eight D.A.S. Audio Aero 12A loudspeaker enclosures -- flown four elements per side in a left-right configuration -- serve as the house mains. These loudspeakers are augmented by 12 Avant 15A loudspeakers, which are placed as delay fills. For low frequency support, five LX-218A subwoofers -- three enclosures ground-stacked in a center mono sub configuration and the remaining two enclosures used in a delay capacity -- are augmented by an additional four Avant 118A sub bass enclosures. A D.A.S. Audio DSP-4080 processor handles time-alignment and limiter tasks for different groups of speakers and zones.

"With the trend of bars in China having singing performances every night-together with their selection of electronic music -- we're dealing with a system that is very versatile," explains Xiao Zhao. "The installation had to be done in a way that the singers do not encounter feedback when they walk from one performance area to the next. The challenge was to keep everything sounding as natural as possible without the loss of clarity. Thus, we had to keep the microphones as unprocessed as possible. The loudspeakers were specifically placed in a manner that the singers have the freedom to move around while ensuring enough coverage and high SPL levels for all areas. With both installations, the combination of D.A.S. Audio's Aero Series 2 and Avant loudspeaker systems was the ideal choice to address these conditions."

Eduardo Lopez, D.A.S. Audio Asia's business operations manager, says, "With D.A.S. Audio's vast selection of products to address a wide range of sound reinforcement applications, and China's growing interest in Active speaker systems, I'm confident there will be many more opportunities for us to expand this emerging market"