Jantzen Audio 000-5251 | 4,7 mH | 0,35 Ω | 3% | 18 AWG

The Jantzen Audio 000-5251 iron core coil with discs is a premium-grade component engineered for demanding loudspeaker crossover networks. Designed to deliver precise and stable inductance, this 4.7 mH coil ensures accurate frequency filtering, which is essential for achieving balanced and natural sound reproduction in high-fidelity audio systems.

This coil is ideally suited for use in passive crossover designs, particularly for midrange and bass drivers where controlled inductance and low resistance are critical. It is also an excellent choice for DIY speaker builders and audio enthusiasts seeking to upgrade or customise existing loudspeaker systems, providing reliable performance in both two-way and three-way configurations.

Technically, the coil features a 4.7 mH inductance with a tight ±3% tolerance, ensuring consistent and predictable behaviour across production batches. The DC resistance is a low 0.35 Ω, minimising signal loss and power dissipation, while the 18 AWG (1.02 mm diameter) copper wire offers excellent current handling. The iron core construction, complete with protective discs, provides high inductance values in a compact 55 x 46 mm footprint, reducing unwanted magnetic interference and maintaining signal purity.

With its robust build and precise specifications, this Jantzen Audio coil is a reliable choice for any serious crossover project, delivering both performance and longevity.