Akiko's tuning disc… – "…is energized with natural particles during a proprietary and irreversible 7-month process". The 6mm thick 540g stainless steel disc [€149] is the size of a CD with a felt protector on the underside. It "should be placed on/under equipment or speakers. Direct contact isn't needed." Akiko also state that the operational principle of this device is very different from their existing noise-absorbing compounds but can be used in conjunction to make listening "more relaxing". The new discs are said to be particularly effective wherever we suspect stray radiated fields to interfere with our equipment's best functioning.