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QSC Audio’s ILA Success in Korea
A number of new QSC Audio ILA line array installations have been carried out in Korea recently by territorial distributors, Sama ProSound Co., Ltd. The long-established Seoul-based company reports that applications vary from auditoria in educational establishments to places of worship.
The main auditorium at Wooshin High School in Seoul is used for a variety of functions and its long rectangular shape would generally have dictated that a large number of subwoofers would be required to complement the main full-range main speakers.
But QSC’s Installation Line Array (ILA) already offers a massive 140° horizontal coverage, and 12 enclosures have been specified (in two hangs) with four WL118-sw subs. This necessitated adding only a pair of QSC’s AcousticDesign AD-S82s in each of the corners of the auditorium’s second floor to ensure that a magnificent, evenly-dispersed sound can be experienced from any location in the building. The system is powered by QSC’s ISA amplifier range with process control handled by a Rave 522aa, operating under the QSControlNet platform.
Elsewhere, Yunhee Methodist Church has recently added a new sanctuary, where eight QSC ILA WL2082-i and a pair of WL115-sw subs have been installed in the main and mid-sized worship rooms.
As a multiple-floor structure, the main worship room can accommodate a congregation of 1,500 in its sleek, wooden interior, which matches well with the white ILA series to provide a neat and elegant look.
In view of the multiple floors, four additional AD-S82Hs were installed on the ceiling of each of the first and second floors to deliver rich, complementary sound without creating hot spots within the worship room. Also featured in the installation are QSC AD-S52s, HPR-122i and MD-F152/94, with the system optimised via SC28 2-in/8-out processors, and powered by a combination of PL and RMX amplification.
A similar solution has been conceived for the worship room at the Sehan Evangelical Holiness Church in Suwon City (Gyeonggi Province), where a QSC ILA sound system upgrade was recommended for the folding fan shape multiple-floor building.
Because of the shape of the construction, the angle of the loudspeakers was critical, and with their 140° horizontal dispersion the ILA’s were considered to be the best products for a folding fan shape environment such as this.
The system, comprising eight WL2082-i, two WL115-i subs and a pair of HPR-122i enclosures, is controlled and optimised using QSCs SC28 processor, allowing the user to perform simple hardware operations without needing to understand the details of the complex software.
At the new, four-storey Daebul University Convention Center in Mokpo City (Cheolla Province) QSCs ILA was again considered the best solution for the auditorium in view of its dispersion characteristics and compact, attractive exterior design.
In the main auditorium, eight WL2082-i enclosures have been installed (four each side of the stage) and two WL115-sw subwoofers, hung at the rear. This method not only provides a stable sound solution but facilitates installation in a low-ceilinged venue. Quantities of AD-S82 are also used for infill and the system is driven by a combination of QSC’s ISA and RMX series amplifiers.
Sama recommended that to ensure optimisation between devices, an integrated QSC process-controlled solution be adopted, and the University accepted this proposal.
Finally, the major conference room at the Kunsan Branch of the Korea Industrial Complex Corp in Cheolla Province – designed to host seminars, local events, invited lectures and other functions – has also benefitted from an ILA upgrade.
Here, a total of six QSC WL-2082-i line array speakers have been installed (three enclosures each side of the stage), again using its wide horizontal coverage to great effect. Aside from the ease of installation the Corporation also liked the compact and attractive design of the speakers, which matched perfectly with the newly built main conference room.
The system is run bi-amped, with the top end driven by QSC’s CX302 and the mid/low frequencies by a CX702. “Even though the tri-amp method that separates mid and low ranges is widely preferred, the bi-amp method became the better option for a conference room that is used for speech rather than performance,” said Sama ProSound’s product manager, Carl Park. “It also helps the economics of the installation.”
11th March 2008
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