Mega Amadeus system for Korean institution
Wednesday, 1 February 2017
South Korea - Amadeus has announced the install of a massive speaker system, featuring the newly-released PMX 12 D self-powered active speakers, within a new multi-disciplinary institution, the Arts & Creative Technology Centre (ACT), in Gwangju, South Korea.
ACT Centre puts Gwangju at the forefront of global art, design, and culture dialogue. Launching with a major festival and exhibition in November 2015, ACT Centre commenced a dynamic year-round programme of activities that brought together leading Asian and international talents to share, collaborate, and inspire.
Located on the site of the former provincial government building in Gwangju, ACC hosts several institutions and facilities that include the ACT Centre, the Research Institute for Asian Culture, Library & Archive, Centre for Children, multiple theatres, and exhibition halls, and the May 18 Memorial event.
The Amadeus PMX 12 D speakers installed in the ACT Centre feature built-in 24/96 DSP, and analog, AES3 and Dante inputs; a coaxial driver with a 12-inch woofer and a 2-inch tweeter with compression driver; and is bi-amplified using two dedicated high resonance digital amplifiers. The PPM-PWM fixed frequency class-D amplifiers are equipped with a high efficiency switched mode power supply, delivering 1500W (LF) + 400W (HF).
Michel Deluc, Amadeus' director of research & development, says, "We were among the first manufacturers of electroacoustical equipment to look into audio transfers over Internet Protocol. We are committed to minimizing latency as well as unnecessary AD/DA conversions that impact signal quality. This started 10 years ago, the year we wrapped up development of our first line of bi-amped coaxial systems featuring EtherSound I/O, which was designed for the French Institute for Research and Coordination Acoustic/Music (IRCAM).
“The technological gains offered by the Dante protocol and its widespread adoption by professionals led us to consider its implementation within our systems."
Dongyup Kwak, A/V consultant and CEO of 'C2 Artechnolozy' explained, "Before meeting the ACT Centre president, I had no sound system installation ideas for this venue, Space 1 (called The Ground) was a really big area for Media Art Installation & Exhibition - the room is 70m by 30m with 18m ceilings. The president's wish was to create a platform for artists, designers, engineers, and researchers to develop forward-thinking ideas, aiming for the ACT Centre to become a multicultural interface that fosters knowledge and skill exchange between creatives in Asia and the rest of the world.
"For immersive installations and exhibitions, we had to create an intelligent ceiling, equipped with chain motors, including audio, video and network connections. So, I designed a custom steel truss ceiling featuring 64 chain hoists and 64 digital cable reels, combined with CAT5E network cable reels with mercury wetted contacts. After many experiments, the Mercury wetted contacts were found to be quite stable solutions," reveals Kwak.
Movecat's PLUSlite 500 Series chain hoists were selected as rigging hoists by the ACT Center. C2 feel they are the first choice when it comes to the safe and reliable hoisting and positioning of trusses, stages, ground support structures and other devices used in media applications.
For immersive video, C2 selected the 4x4Pro flagship media server from d3 Technologies, able to drive up to four 4K outputs or 16 HD outputs, transfer content in minutes instead of hours, and switch video signal formats as the industry evolves. It is connected to 12 Panasonic PT-DZ21K projectors with built-in quad-lamp system, with new high-power UHM lamps, helping to make the body extremely compact while providing an astounding 20,000 lm*1 of brightness.
Dongyup Kwak adds, "For immersive audio, we selected a Sonic Emotion WAVE I 3D wave field synthesis rendering unit for processing of up to 32 input and up to 64 output channels."
Gaetan Byk, marketing manager at Amadeus. Comments, "The piece de resistance within this installation was the speaker system design. The requirements were practically unrealizable. The technical, networking and acoustical constraints pushed us to develop a new series of bi-powered and Dante-enabled point source loudspeakers, allowing remote control of each built-in DSP for an optimal adjustment to the acoustical properties of the listening space. The Amadeus PMX D Series speaker was born from creating the sound system for this installation by enhancing our original PMX speaker design with these new technical capabilities."
The sound system is completed with an SSL Live L300 digital mixing console. Philippe Guerinet, director of international Ssales for SSL and SSL France manager, said, "There are several significant benefits that are key reasons to implement this network based routing solution. Audio over IP allows us to put the stage-boxes where needed, with minimal cabling, which in this complex exhibition hall setup is very important.
“And it easily lets us connect all kinds of Dante-enabled gear: Amadeus PMX D (Dante-enabled) speaker systems, SSL L300 console, SSL Network I/O stage-boxes, and every other ancillary equipment needed. This network approach notably allows us to solve classic constraints, especially channel count, synchronization, redundancy, latency, and signal distribution without adding any traditional TDM solution."
(Jim Evans)

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