Intertechnik LU92/4.7/140 | 4,7 mH | 0,74 Ω | 3% | 15 AWG

The Intertechnik LU92/4.7/140 is a premium 4.7 mH air core coil designed for audiophile-grade loudspeaker crossover networks. As an air core inductor, it eliminates the core saturation and hysteresis distortion common in ferrite-based coils, ensuring pure, uncoloured signal transmission for critical filtering applications. This makes it an ideal choice for high-fidelity speaker builds, studio monitors, and custom crossover designs where transparency and accuracy are paramount.

Engineered for versatility, this coil excels in low-frequency crossover sections, particularly for bass and midrange drivers requiring precise roll-off characteristics. Its low DC resistance of 0.74 Ω minimises power loss and heat generation, while the ±3% tolerance guarantees consistent performance across production batches. The generous 92 mm outer diameter and 1.4 mm wire thickness (15 AWG) provide excellent current handling, making it suitable for demanding multi-way systems.

Technical construction features a 30 mm core diameter with a 5.3 mm central bore, allowing secure mounting on standard crossover boards. The 73 mm cut-out size and 65 mm depth accommodate compact enclosures, while the 39 mm total height ensures compatibility with tight layouts. The winding width of 33 mm optimises inductance stability, and the recessed diameter of 25 mm facilitates neat integration. Each coil is wound with precision to maintain consistent electrical properties, delivering reliable performance over extended listening sessions.

Whether upgrading existing speakers or building from scratch, this Intertechnik air core coil provides the sonic purity and engineering integrity demanded by discerning audio enthusiasts.