Home of Chungnam Asan Football Club, the 17,376‐seat Yi Sun‐sin Stadium in Asan, South Korea has enhanced the game‐day experience for fans with a new level of audio intelligibility and coverage, thanks to a new sound system featuring Electro‐Voice loudspeakers powered and processed by amplifiers from Dynacord. Dlogixs Co., Ltd. (Anyang‐si, Kyounggi‐do) completed the system design and installation, with manufacturer support from Hosung Lee of Electro‐Voice/Dynacord. “As per customer requirements, the new system needed to combine power and precision with cost-effectiveness and energy efficiency,” says Lee.
“The goal was to minimize acoustic blind spots while ensuring sufficient SPL and headroom for speech and background music. The Electro‐Voice and Dynacord solution provides perfect systemwide alignment between the main speakers and the delay speakers, in terms of both timing and tone.” The main covered grandstand on the home side of the stadium is the only suitable structure from which to fly loudspeaker clusters; the away‐side seating areas directly across the pitch are uncovered. The challenge was to achieve consistent coverage and SPL for both the home and away fans, using a combination of main loudspeakers in the grandstand and delays to cover the away seats. As line‐arrays were not a cost-effective option, point‐source models with excellent pattern control were selected as a solution. Weatherized EVH horn‐loaded loudspeakers in four vertical clusters of two serve as the mains: longer throw 90°H x 40°V over wider coverage 90°H x 60°V. Ideal for sports venues, the EVH’s rotatable waveguide design ensures pattern control is maintained down to 500 Hz. The EVH models are supported by eight weatherized Sx300PI two way loudspeakers as side fills for the areas right below the main clusters.