Ryōgoku Kokugikan, also known as Ryōgoku Sumo Hall or Kokugikan Arena, is the only building dedicated to Sumo, Japan’s national sport, and has been home to many historic initiatives.
The origins of Sumo began some 2000 years ago but in its modern form it only took hold around 300 years ago. Once established in Japan, it passed down from generation to generation.
Such is its iconic status, there is no-one in Japan who has not heard of the Tokyo-based Ryōgoku Kokugikan. Sumo wrestlers practice here daily, dreaming of winning the Gift Cup, and since Sumo is Japan’s national sport, His Majesty The Emperor sometimes comes to watch, and has seats reserved for him.
But Ryōgoku Kokugikan also hosts various other events during periods when sumo is not being held, including wrestling, concerts and corporate events.
Sumio Akashio, sound engineer at the Ryōgoku Kokugikan, said the arena therefore required a PA that could reproduce, intelligibly, everything from quiet to loud sound reproduction...
