Jantzen Audio 000-2109 | 3,3 mH | 0,255 Ω | 3% | 15 AWG

The Jantzen Audio 000-2109 iron core coil is a meticulously engineered component designed to elevate the performance of high-fidelity loudspeaker systems. As a trusted name in audio components, Jantzen Audio delivers exceptional quality and consistency, making this coil an ideal choice for audiophiles and DIY speaker builders alike. Its primary application lies within crossover networks, where precise inductance is critical for accurate frequency filtering, ensuring that each driver receives only the frequencies it is designed to handle. This results in a cleaner, more coherent soundstage with improved transient response.

Technically, this coil offers an inductance of 3.3 mH with a tight tolerance of ±3%, guaranteeing reliable and repeatable performance in your designs. The 15 AWG wire diameter, equivalent to 1.45 mm, provides a very low DC resistance of just 0.255 Ω, minimising power loss and heat generation even under demanding conditions. The iron core construction allows for a compact form factor—measuring 35 x 70 mm—while maintaining high inductance values, making it suitable for bass and midrange filtering where larger air core coils would be impractical. Whether you are upgrading an existing speaker or building a custom pair from scratch, this coil offers the precision and efficiency required for superior sound reproduction.