Intertechnik CO30/082/071 | 0,82 mH | 0,45 Ω | 5% | 21 AWG

The Intertechnik CO30/082/071 iron core choke coil is a meticulously engineered component designed to elevate the performance of high-fidelity loudspeaker systems. As a trusted name in audio components, Intertechnik delivers reliability and precision in every coil, making this 0.82 mH inductor an essential building block for discerning audio enthusiasts and professional designers alike.

This choke coil is ideally suited for use in passive crossover networks, where it ensures accurate frequency division between drivers such as woofers, midranges, and tweeters. Its robust iron core construction provides excellent inductance stability, making it particularly effective in low-frequency applications where consistent performance is critical. Whether you are building custom speakers or upgrading existing designs, this component helps achieve a clean, natural soundstage with minimal distortion.

Technically, the coil features a low DC resistance of just 0.45 Ω, which minimises power loss and heat generation, thereby preserving amplifier efficiency. The inductance value of 0.82 mH is held to a tight tolerance of ±5%, ensuring predictable and repeatable crossover behaviour. Wound with 21 AWG wire (0.71 mm diameter), the coil offers a good balance between current handling and compact size. Its outer diameter measures 30 mm, with a total height of 22 mm, a centre hole of 5 mm, and a recess diameter of 17 mm, facilitating straightforward mounting on crossover boards.

In summary, this Intertechnik choke coil combines precise electrical specifications with durable construction, making it a reliable choice for achieving accurate, high-quality sound reproduction in any speaker project.