Intertechnik LU78/3.0/140 | 3,0 mH | 0,60 Ω | 3% | 15 AWG

The Intertechnik LU78/3.0/140 is a premium air core coil designed for audiophiles and loudspeaker builders who demand uncompromising sound quality. This 3.0 mH inductor delivers precise crossover filtering, ensuring clean frequency division for natural, transparent audio reproduction. Its air core construction eliminates core saturation and hysteresis distortion, making it ideal for high-fidelity speaker systems, studio monitors, and custom DIY audio projects where signal purity is paramount.

Engineered with a 15 AWG wire diameter of 1.4 mm and a DC resistance of just 0.60 Ω, this coil minimises power loss and maintains excellent current handling. The generous 78 mm outer diameter and 25 mm winding width provide stable inductance with a tight ±3% tolerance, guaranteeing consistent performance across production batches. A central bore of 5.3 mm and recess diameter of 22 mm simplify mounting, while the 30 mm overall height and 25 mm core diameter ensure compatibility with most crossover boards. The robust air core design also eliminates magnetic interference, preserving the integrity of adjacent components.

Whether upgrading existing speakers or building new reference-grade systems, this Intertechnik coil offers the reliability and sonic transparency required for critical listening applications. Its precise specifications make it a trusted choice for both seasoned engineers and dedicated hobbyists.