Intertechnik FE130/3.9/30 | 3.9 mH | 0.07 Ω | 5% | 9 AWG | Transformer Core Coil

The Intertechnik Transformer Coil, model FE130 with a 3.90 mH inductance, represents a premium choice for audiophiles and loudspeaker designers seeking uncompromising crossover performance. This air-core coil is engineered to deliver precise frequency filtering in high-power speaker systems, ensuring that each driver receives only the intended range of frequencies for optimal sound reproduction.

This coil is ideally suited for use in passive crossover networks within high-end home audio loudspeakers, professional studio monitors, and custom-built sound systems. Its low DC resistance makes it particularly effective in applications where minimal signal loss and maximum power handling are critical, such as in bass and midrange driver circuits where high current flows are common.

Technically, the coil features a 0.07 Ω DC resistance, which is exceptionally low for a 3.90 mH inductance, ensuring negligible power dissipation and maintaining system efficiency. The winding uses 3.00 mm diameter copper wire, contributing to its robust current-carrying capacity and low resistive losses. With an external diameter of 130 mm and a recess diameter of 5.5 mm, it is designed for secure mounting within speaker enclosures. The ±5.0% tolerance guarantees consistent performance across production batches, making it a reliable component for precision crossover design.

This Intertechnik coil combines high-quality materials with meticulous engineering, offering a durable and sonically transparent solution for demanding audio applications.