value: 1.70 mh / 0.72 Ω High-purity copper wire, “baked” into a perfect shape to create a distortion-free inductor, for all audio applications. HighlightsEnameled copper wire solder able with self-bonding topcoat, class 155, acc to IEC 60317-35, DIN EN 60317-35Grade 1B copper wirePoly..