Jantzen Audio 000-1956 | 4,0 mH | 1,21 Ω | 3% | 18 AWG

The Jantzen Audio 000-1956 air core coil is a premium crossover component engineered for discerning loudspeaker builders who demand uncompromising signal purity. This 4.0 mH inductor delivers exceptional performance in passive crossover networks, ensuring precise frequency division between drivers without the distortion or saturation that can plague iron-core alternatives.

Ideal for high-fidelity home audio systems, studio monitors, and custom speaker designs, this coil excels in low-pass and band-pass filter applications where linearity and low losses are paramount. Its air core construction eliminates core saturation effects, making it particularly suitable for high-power handling and critical listening environments where every detail matters.

Technically, the coil features an inductance of 4.0 mH with a tight ±3% tolerance, ensuring consistent performance across production batches. The DC resistance measures just 1.21 Ω, minimising power loss and maintaining amplifier damping factor. Wound with 18 AWG (1.02 mm diameter) copper wire, it offers excellent current handling while the 57 x 30 mm dimensions allow for compact integration into crossover boards. The 3% RMS power tolerance further guarantees reliability under sustained operation.

This Jantzen Audio air core coil represents a thoughtful balance of electrical performance and build quality, making it a trusted choice for both DIY enthusiasts and professional speaker manufacturers seeking predictable, repeatable crossover behaviour.