Intertechnik HQ58/15/112 | 15 mH | 0,57 Ω | 5% | 17 AWG

The Intertechnik HQ58/15/112 is a premium 15 mH iron core coil engineered to deliver precise and reliable low-frequency filtering in high-fidelity loudspeaker crossovers. As part of Intertechnik’s renowned roller core series, this component is ideally suited for audiophile-grade designs where accurate bass management and minimal signal degradation are paramount. Whether you are building custom speakers, upgrading existing systems, or restoring vintage audio equipment, this coil ensures clean, controlled performance in the critical low-end spectrum.

Technically, the HQ58/15/112 features a DC resistance of just 0.57 Ω, which helps maintain efficiency and reduce power loss in the crossover network. The inductance value of 15 mH is held to a tight ±5% tolerance, guaranteeing consistent behaviour across production batches. Wound with 17 AWG wire (1.12 mm diameter), the coil offers excellent current handling and thermal stability. Its robust construction includes an outer diameter of 58 mm, a core diameter of 28.8 mm, and a total height of 46.5 mm, with a winding width of 28 mm and a central bore of 4.8 mm for secure mounting. This roller core design minimises stray magnetic fields and distortion, making it a trusted choice for discerning audio enthusiasts and professional designers alike.