Shunyata Research is an American manufacturer of cabling and power products. Shunyata, the name comes from Buddhism and means emptiness or nothingness, has its own (wise) approach to the concept of clean signal and this can be seen in all areas of the Shunyata product line: from the unique weaving method of the power cables, the patented Helix geometry and the development of unique high-frequency eliminating materials (also patented) to the production of their own ultrapure copper. Any good audio set will perform clearly audibly better with power distributors and power cords from this brand. Our top set always includes a complete Shunyata system. Absolutely quiet and maintenance-free. Very worthwhile.