The history of Tamura's professional audio began 50 years ago, when it first released an outside broadcast mixer.

Since then, broadcast technology has changed in various ways, and outside broadcasts have become possible from anywhere in the world.

The AMX portable series, which is able to operate in severe natural environments such as Antarctica and the Himalayas, supports outside broadcasts and has been used in Asia and all over the world.

Having inherited such a long history, this series has been renewed incorporating surround production functions.