Jantzen Audio 000-1241 | 3,9 mH | 0,66 Ω | 3% | 15 AWG

The Jantzen Audio 000-1241 air core coil is a premium crossover component designed for discerning audio enthusiasts and loudspeaker builders. This 3.9 mH inductor delivers exceptional signal purity, making it an ideal choice for high-fidelity speaker systems where accurate frequency division is critical. Its air core construction eliminates core saturation and hysteresis distortion, ensuring transparent, uncoloured sound reproduction across the entire audio band.

This coil excels in passive crossover networks for two-way and three-way speaker designs, particularly in midrange and bass filter sections where stable inductance is paramount. It is equally suited for upgrading existing loudspeakers or constructing bespoke audiophile-grade systems. The low DC resistance of 0.66 Ω minimises power loss and maintains damping factor integrity, allowing your amplifier to retain full control over the driver.

Technically, the coil features a 15 AWG wire diameter (1.45 mm) wound on a non-magnetic former, with dimensions of 74 x 30 mm. The ±3% tolerance ensures precise crossover alignment, while the air core design guarantees linear performance regardless of signal level. Each unit is hand-wound in Denmark to Jantzen Audio’s exacting standards, offering long-term stability and reliability.

For builders seeking uncompromising crossover performance, this Jantzen Audio air core coil provides the perfect balance of low resistance, accurate inductance, and sonic transparency. It is a worthy investment for any serious loudspeaker project.