Kanai Seisakusho KaNaDe KaNaDe03 (Set of 4) Audio Insulators Used item. Original box and instruction manual included. No pets, non-smoking environment. We hope that those who understand that this is a used item will purchase it. [For audio equipment / CD, LP players, DACs, amplifiers, clean power supplies, etc. / Separates the sounds of multiple instruments, such as the reverberation of instruments, clearly.] [The reverberation of instruments drifts through the room, and you can hear the singer's breath.] By contacting the floor surface only with sector lines (fan lines), we were able to eliminate extraneous noise to the extreme without using felt. You can hear the reverberation and breath that appear after playing an instrument. [Separates the sounds of multiple instruments clearly.] By applying chamfering to the slit exit, which is used to prevent brake squeal in cars, resonance is reduced, and the sounds of multiple instruments, such as those in an orchestra, are separated. It will feel like you are listening from the audience seats at a concert hall. [Encompasses all sound field expressions.]