We want to listen to music with the best sound quality.                                                                   With this desire, we have continued our research and development for 48 years.                             We have invented the world’s first CRSS (krɔ’ːs) technology and developed the CRSS speaker.                                            CRSS is an acronym for Concave Reflection Speaker System.                                                         Sound waves radiated inside the speaker box are 100% silenced by the CRSS structure.                   Since there are no reflected sound waves from inside the speaker box, the sound waves radiated to the listener are extremely undistorted, reproducing a stereo image with overwhelmingly high sound quality                                                                       and high accuracy.                                                                        Below is a picture and perspective drawing of the world’s first CRSS speaker.