○ Audio Prism ○ Quiet Line mkIII → Two more of the same model are also listed. ○ Power (AC) Noise Filter ○ I purchased this used previously, but I have no use for it, so I will sell it. This is a very effective filter, and I used it by plugging it into power strips like Acoustic Revive or into indoor wall outlets. ※ The Audio Reference sticker was not attached from the time of purchase, so I will sell it a little cheaper. ○ Condition: Used item with general signs of use. ※ There are scratches and marks, so please purchase only if you understand that this is a used item. ○ Recommended for those who want to enhance power strips from Oyaide, Chikuma, Furutech, SAEC, KRIPTON, Acoustic Revive, KOJO, Pro Cable, etc., or for those who want to reduce noise from wall outlets. ○ Please feel free to ask if you have any other questions.