The Power One is designed for power amplifiers, pre-amps and sources. We utilized multiple strands of high purity copper for the 3 conductors. This provides a very smooth and detailed sound. Shielding is comprised of multiple layers of braided copper for 100% coverage against RFI and EMI. The Power One cord is the best sounding power cord in it's class and will compete with other power cords 2 to 3 times its price. See Ordering page for price list.