Acoustic Revive RCI-3 [Cable Insulator] by Acoliva Used item. Item includes the main unit only. In relatively good condition. No pets, non-smoking environment. We appreciate your understanding if you purchase this used item. Achieves organic and natural sound As a material to achieve the most natural and organic sound without any peculiarities, we have adopted a combination of the highest grade maple and the highest grade ebony, bonded with a special damping material. Significant effect even when used on a single power cable By lifting all points where the cable is in contact, such as the floor or rack shelves, the transparency, three-dimensionality, and texture can be improved. However, it also has a significant effect even when used on just one power cable. Dramatically improves the S/N ratio and distortion rate When used on a power cable, it strongly suppresses micro-vibrations caused by AC current and radiation noise generated from the power cable itself, creating a kind of rectification effect, which can dramatically improve the S/N ratio and distortion rate.