The Jantzen Audio Air Core Wire Coil is made of high purity Copper wire, offering distortion-free inductance. This makes it suitable for all audio applications. The coil benefits from a modern, self-supporting design with a low inductance tolerance (±3%). The power handling depends on the wire used and more particularly on the thickness of the copper wire. The greater the thickness, the higher the power capacity. Thus, Jantzen Audio Air Core Wire Coil is one of the most versatile coils on the market.