Intertechnik I78/220/085 | 2,2 mH | 0,37 Ω | 5% | 20 AWG

The Intertechnik Iron-Core Rod Coil, with a precise inductance of 2.20 mH, is a high-quality component designed to elevate your loudspeaker crossover networks. Manufactured by the trusted German brand Intertechnik, this coil ensures reliable and consistent performance for audio enthusiasts and professionals alike. Its primary application lies in achieving accurate frequency filtering, making it an ideal choice for building or upgrading passive crossovers in hi-fi speakers, studio monitors, or custom audio projects where precise sound reproduction is paramount.

Technically, this coil features a DC resistance of just 0.37 Ω, which minimises signal loss and maintains efficiency within the circuit. The winding uses a 0.85 mm diameter copper wire, offering a robust current-handling capability while keeping the overall size compact—with an outer diameter of 28 mm, a central hole of 4.5 mm, and a total height of 25 mm. The ±5.0% tolerance ensures dependable inductance values for consistent crossover slopes. Whether you are a seasoned designer or a dedicated hobbyist, this iron-core rod coil delivers the precision and build quality required for refined audio performance.