Jantzen Audio 000-1685 | 0,31 mH | 0,46 Ω | 3% | 21 AWG

The Jantzen Audio 000-1685 air core coil is a precision component designed for audiophile-grade loudspeaker crossover networks. Manufactured to exacting standards, this 0.31 mH inductor ensures clean, accurate signal filtering without the distortion or saturation that can occur with iron-core alternatives. Its air core construction eliminates core losses entirely, preserving the purity of your audio signal from input to output.

This coil is ideally suited for use in high-fidelity speaker systems, particularly in crossover designs where minimal signal degradation is paramount. Whether you are building custom loudspeakers, upgrading existing crossovers, or repairing vintage audio equipment, this component delivers consistent, reliable performance. It is especially effective in midrange and tweeter circuits where precision filtering is critical to achieving a balanced soundstage.

Technically, the coil offers a DC resistance of just 0.46 Ω, ensuring low power loss and efficient energy transfer. The inductance value of 0.31 mH is held to a tight ±3% tolerance, guaranteeing repeatable results in production or one-off builds. Wound with 21 AWG wire (0.72 mm diameter), the coil measures 27 x 15 mm, making it compact enough for most crossover boards. The air core design also means it is immune to magnetic saturation, maintaining linear performance even at higher signal levels.

For discerning audio enthusiasts and professionals alike, this Jantzen Audio coil represents a reliable choice for achieving transparent, accurate crossover filtering in any high-quality loudspeaker project.