Intertechnik AT55/068/132 | 0,68 mH | 0,26 Ω | 3% | 16 AWG

The Intertechnik AT55/068/132 air core choke coil is a precision component designed for audiophile-grade loudspeaker crossover networks. Engineered with meticulous attention to detail, this 0.68 mH inductor delivers clean, transparent filtering that preserves the integrity of your audio signal without the risk of core saturation or distortion. Its robust construction makes it an ideal choice for both DIY enthusiasts and professional speaker builders seeking reliable, high-fidelity performance.

This choke coil excels in a variety of crossover applications, from two-way bookshelf speakers to complex multi-way systems. It is particularly well-suited for midrange and tweeter circuits where low resistance and minimal signal degradation are critical. Whether you are upgrading an existing design or building a custom set of loudspeakers from scratch, this component ensures accurate frequency division and consistent sound reproduction across the listening spectrum.

Technically, the coil features a 16 AWG wire diameter of 1.32 mm, wound on a 55 mm outer diameter former with a 28 mm core diameter and a total height of 30 mm. The winding width measures 24 mm, with a central hole of 5.3 mm and a recess diameter of 25.5 mm for secure mounting. With a DC resistance of just 0.26 Ω and a tight ±3% tolerance, it offers excellent efficiency and predictable performance. This air core design eliminates hysteresis and eddy current losses, ensuring low distortion and stable inductance over time.

For discerning audio enthusiasts who demand uncompromising quality in their loudspeaker projects, the Intertechnik AT55/068/132 air core choke coil provides the precision, reliability, and sonic transparency required to achieve truly refined crossover filtering.