Intertechnik P62/3.30/140 | 3.3 mH | 0.26 Ω | 5% | 15 AWG | Choke Coil

The Intertechnik Ferrobar mushroom-shaped ferrite core coil is a premium inductor designed to elevate the performance of your loudspeaker crossover networks. By minimising distortion and ensuring stable inductance, this component delivers cleaner, more accurate audio reproduction, making it an ideal choice for audiophiles and DIY speaker builders seeking to refine their systems.

This coil excels in high-quality crossover designs, where precise filtering is critical for separating frequency bands. Whether you are upgrading an existing speaker or constructing a custom pair, the Ferrobar’s low DC resistance of 0.26 Ω ensures minimal signal loss, preserving dynamic range and detail. Its robust construction also suits demanding applications where reliability and consistent performance are paramount.

Technically, the coil offers an inductance of 3.30 mH with a tight ±5% tolerance, ensuring accurate crossover points. The 1.40 mm copper wire winding reduces resistive losses, while the mushroom-shaped ferrite core—with an outer diameter of 62 mm and a total height of 47 mm—optimises magnetic flux. The central bore of 5 mm and recess diameter of 25.5 mm facilitate straightforward mounting, and the winding width of 35 mm contributes to efficient heat dissipation.

In summary, the Intertechnik Ferrobar coil combines low distortion, precise inductance, and durable build quality, making it a reliable choice for enhancing your speaker system’s clarity and fidelity.