Acoustic Revive has been around many years and has been very well known in Japan for a long time. The Acoustic Revive system and room tuning accessories are from the creative mind of Mr. Ken Ishiguro, a life-long music and Hi-Fi aficionado. All of his Acoustic Revive designs are tested excessively to ensure they work well across a wide variety of equipment. Acoustic Revive accessories are designed to help tune Hi-Fi systems so it will play a recording "...so that it sounds natural and not as though it is being played back over an electrical device. Only by listening to natural sound without electronic artifice can you hear what the artists intended..."