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Electro-Voice & Dynacord Team Up To Deliver Audio Upgrade At Stadium In South Korea

Challenge was attaining consistent coverage and SPL for both the home and away sections using a combination of main and delay loudspeakers.
Looking across the pitch at the main granstand at Yi Sun-sin Stadium that's now equipped with four groups of EVH loudspeakers driven and optimized with Dynacord amplifiers.

Home of the Chungnam Asan Football Club, the 17,376-seat Yi Sun-sin Stadium in Asan, South Korea is providing an enhanced game-day experience for fans with a recently implemented new sound reinforcment system with Electro-Voice loudspeakers powered and processed by amplifiers from Dynacord.

Dlogixs Co., Ltd. (Anyang-si, Kyounggi-do) handled 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 system-wide 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 ruled out due to cost, a point source direction providing the designed pattern control were selected.

Weatherized EVH horn-loaded loudspeakers in four vertical clusters of two serve as the mains: longer-throw 90- x 40-degree boxes over wider-coverage 90- x 60-degree enclosures (both H x V). The EVH models are supported by eight weatherized Sx300PI two-way loudspeakers as side fills for the areas right below the main clusters.

Across the pitch, 16 ZX1i compact two-way loudspeakers are distributed to cover the away-side seating areas, with tonal characteristics and delay time carefully aligned to match the main system. Each is pole-mounted inside a weatherproof enclosure and equipped with a TC-ZX1i terminal cover. Two EVID 6.2 compact two-way loudspeakers complete the Electro-Voice equipment list, wall-mounted as monitors in the control room. The loudspeakers are powered and processed via a combination of Dante-equipped IPX and L series amplifiers from Dynacord, with optimizing presets for the Electro-Voice loudspeakers.

“The fans are the ultimate judges of a successful sound system installation,” Lee concludes, “and the response has been very positive. The speech intelligibility is excellent and the SPL is balanced across all areas. Electro-Voice and Dynacord have a proven track record in stadium installations, and this adds to that list. In particular, the EVH models are exceptionally competitive in terms of price and performance. Combined with the Sx300PI models and ZX1i delays, this install demonstrates how impressive results can be achieved while aligning with a limited project budget.”


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