Intertechnik FE130/3.3/30 | 3.3 mH | 0.06 Ω | 5% | 9 AWG | Transformer Core Coil

The Intertechnik Transformer Coil – 3.30 mH | FE130 is a premium-grade air-core inductor designed for audiophiles and loudspeaker builders who demand uncompromising performance. This coil delivers precise crossover filtering, ensuring clean frequency division and minimal signal degradation in high-fidelity speaker systems. Its robust construction makes it ideal for use in passive crossover networks, particularly in high-power applications where low distortion and thermal stability are essential.

Engineered with a 3.00 mm copper winding, this coil achieves an exceptionally low DC resistance of just 0.06 Ω, which minimises power loss and maintains signal integrity even under demanding loads. The 3.30 mH inductance value, with a tight ±5% tolerance, guarantees accurate crossover points for consistent sound reproduction. The outer diameter of 130 mm and a recess diameter of 55 mm facilitate secure mounting within speaker enclosures, while the air-core design eliminates core saturation and hysteresis effects, preserving audio clarity. Whether you are upgrading an existing system or building a custom loudspeaker from scratch, this Intertechnik coil offers the reliability and precision required for critical audio applications. Its high current handling and low resistance make it a superior choice for achieving transparent, dynamic sound across the frequency spectrum.