The system was designed by Moment Factory, with Prism Co., Ltd., contracted to install the technical equipment, as well as day-to-day technical operation and maintenance. Reliability was a key factor, as with any outdoor audio installation. This was the main reason why Moment Factory specified a Yamaha sound system.
The production is divided into eight zones on a Dante audio network, with Yamaha XMV series four- and eight-channel power amplifiers driving a total of 32 VXS8 and six VXS5 speakers, including a VXS5 at the reception area. All are carefully camouflaged, so they are not noticed by daytime visitors.
The XMV series amplifiers feature straightforward controls which allow all users, including non-networking specialists, to easily manage the Dante system. All are housed in exterior quality rack boxes which include both air conditioners and heaters, with the temperature and humidity managed by remotely monitoring a Wi-Fi-connected thermo-hygrometer.
“Outdoor events are inevitably affected by the weather, the summer temperature and humidity can be especially difficult,” says Mr Yasushi Matsuura of Prism. “We remotely monitor the thermo-hygrometers using a tablet and, if we think the temperature or humidity is too high, we can activate the air conditioners or open the rack doors to cool them down.
“We have used Yamaha products on Kamuy Lumina for three years and they have been very reliable. The cost:performance ratio is also very good.”