Jantzen Audio 000-1957 | 4,5 mH | 1,25 Ω | 3% | 18 AWG

The Jantzen Audio 000-1957 air core coil is a premium component designed for audiophiles and loudspeaker builders who demand uncompromising sound quality. This 4.5 mH inductor delivers precise crossover filtering with minimal signal degradation, making it an ideal choice for high-fidelity speaker systems where clarity and transparency are paramount.

Perfect for use in passive crossover networks, this coil excels in both two-way and multi-way speaker designs, particularly in midrange and bass applications where accurate frequency separation is critical. Its air core construction eliminates core saturation and hysteresis distortion, ensuring pure, uncoloured audio reproduction even at higher listening levels. Whether you are upgrading an existing speaker or building a custom set from scratch, this component provides reliable performance across a wide range of audio projects.

Technically, the coil features an inductance of 4.5 mH with a tight ±3% tolerance, guaranteeing consistent results in matched pairs or production runs. The 18 AWG (1.02 mm diameter) copper wire offers a low DC resistance of just 1.25 Ω, minimising power loss and maintaining signal integrity. With dimensions of 57 x 30 mm, it fits comfortably into most crossover boards, while the 3% power tolerance ensures stable operation under RMS loads. The air core design further reduces eddy currents and parasitic capacitance, contributing to a clean, natural soundstage.

This Jantzen Audio air core coil is a reliable choice for discerning audio enthusiasts seeking to refine their loudspeaker systems with high-quality, low-distortion components.