Jantzen Audio 000-5447 | 4,0 mH | 0,20 Ω | 3% | 15 AWG

The Jantzen Audio 000-5447 iron core coil with disks is a premium component engineered for high-fidelity loudspeaker crossover networks. This 4.0 mH inductor delivers precise filtering to ensure clean separation of frequency bands, allowing tweeters, midrange drivers, and woofers to perform at their best. Its robust construction makes it ideal for both DIY speaker builders and professional audio designers seeking reliable, long-lasting performance in passive crossover designs.

This coil excels in low-frequency applications where accurate inductance and minimal power loss are critical. Use it in two-way or three-way speaker systems to achieve a smooth crossover slope, or integrate it into subwoofer filters for deep, controlled bass response. The iron core design provides high inductance values in a compact form factor, making it suitable for enclosures where space is at a premium.

Technically, the coil offers a 4.0 mH inductance with a tight ±3% tolerance, ensuring consistent performance across production batches. The DC resistance is an impressively low 0.20 Ω, minimising signal degradation and heat build-up even under sustained power. Wound with 15 AWG (1.45 mm diameter) wire, it handles up to 4 watts RMS continuously. The core is shielded with durable disks, reducing stray magnetic interference. Measuring 55 x 46 mm, this component is both compact and robust, delivering the precision and reliability expected from Jantzen Audio.