I130/3.9/132 | 3,9 mH | 0,24 Ω | 5% | 16 AWG | I-Point Coil

The Intertechnik Iron-Core Rod Coil, with a precise inductance of 3.90 mH, is a high-quality component designed for demanding audio applications. This coil is ideally suited for use in passive crossover networks within loudspeaker systems, where accurate filtering is essential to ensure that each driver receives only the appropriate frequency range. Its robust construction makes it a reliable choice for both DIY enthusiasts and professional audio engineers seeking to refine sound reproduction.

Featuring a DC resistance of just 0.24 Ω, this coil minimises signal loss and power dissipation, contributing to efficient and clean audio performance. The 1.32 mm copper wire diameter ensures excellent current handling capability, while the ±5.0% tolerance guarantees consistent inductance values for predictable crossover behaviour. With an outer diameter of 46 mm, a central hole of 6.7 mm, and a total height of 39 mm, the coil is compact enough for integration into most speaker enclosures. The iron-core design provides high inductance in a relatively small form factor, making it an excellent choice for low-frequency filtering applications where space is at a premium. Whether you are building a new set of speakers or upgrading an existing design, this Intertechnik coil delivers dependable performance and precise filtering.