System Snapshot: EV-Innovation for Yedarm Church, Jeonju, South Korea

October 23, 2012


House of Worship

“EV has enhanced the praise experience for our congregation”
End User:

Yedarm Church has been steadily growing its Presbyterianism congregation since being founded in 1999. It now has 600 regular attendees and operates with a staff of 200. The church relocated to a newly constructed site in 2011, including a concert hall that also benefits the local community as a venue for cultural events.

Business Objective:

The relocation was an opportunity to install a new sound system that could offer excellent performance for the praise team to create the right atmosphere and a high degree of intelligibility for announcements and services.

The area available for installation was relatively small, meaning the loudspeaker systems would need to provide powerful performance in a compact form.

The church pastors and elders, together with distributors KEVIC Inc., found an ideal solution with systems from Electro-Voice (EV).


EV offers a wide range of loudspeakers that offer high output and clarity in a small footprint, including its EV-Innovation family of installation-dedicated systems that are proving popular in house of worship applications around the world. This was made clear during the product demonstrations at the church, and various EV loudspeakers were selected for the main sanctuary area and smaller chapels.

Front-loaded EVF1122S/64 loudspeakers provide coverage and audio quality in the main sanctuary space, enhanced with EVF1181S subs. TX1122FM models serve as floor monitor wedges. ZX1i-90B indoor/outdoor speakers handle distributed sound.

Q series amplifiers power the loudspeakers and achieve superb audio performance thanks to superior dynamic headroom and transient response, resulting in 30% greater output capability for peak signals.

Customer Benefit:

By reducing the quantity of loudspeakers needed without compromising on sound clarity, volume, and power, the church managed to get a high-quality sound system that met all their requirements without exceeding their budget. “EV has enhanced the praise experience for our congregation,” one pastor commented.

Key Success Factors:

• High power handling and precise coverage combined with convenient size

• Concert-quality audio performance

• System reliability, flexibility, and ease of use

Installed by:


449-8 Dogok-Dong, Kangnam-Ku,

Seoul, Korea 135-270

Robert Bosch Korea Mechanics and Electronics Ltd

298, Bojeong-dong,

Giheung-gu, Gyeonggi-do, Korea

Yongin-si, 446-913

+82 31 270 4765

Equipment List

EVF-1122S 64
2-Way Full-Range Loudspeaker System

1800 W/CH Class-H power amplifier

12" Passive Floor Monitor

8" 2-Way Passive Full-Range Indoor/Outdoor Loudspeaker

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