After six years of research on technology to muffle 100% of the back sound waves (sound waves radiated from the speaker driver into the speaker box) in a box-shaped speaker box, we invented the world’s first CRSS (krɔ’ːs) technology.
CRSS is an acronym for Concave Reflection Speaker System.　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 　　　　　　　　　　　　　　　　　　　CRSS speakers have an ordinary box-shaped appearance, so they can be easily accommodated in the home.
CRSS technology can be used for small to large speakers.
The figure below shows the external and perspective views of a CRSS speaker.
As you can see, the internal structure is completely different from conventional loudspeakers.
In terms of cost, CRSS speakers are equivalent to or less than conventional loudspeakers that incorporate sound deadening materials.The sound quality is overwhelmingly high.　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

　　　　　　　　　　　　　　　　Exterior view　　　　　　　Perspective view 　　　　

　　　　　　　　　　　　　　　　　　Below is a listening room