Intertechnik AT92/390/132 | 3,9 mH | 0,72 Ω | 3% | 16 AWG

Achieve precise crossover filtering in your speaker builds with this high-quality air core choke coil from Intertechnik. The 3.9 mH inductance and 0.72 Ω resistance ensure reliable performance for audio applications where accuracy and low distortion are paramount. This coil is an ideal choice for audiophiles and DIY enthusiasts constructing high-fidelity loudspeakers, as it delivers clean signal handling without the risk of core saturation. Whether you are designing a two-way or three-way crossover network, this component excels in maintaining phase coherence and minimising signal loss, making it suitable for both passive and active speaker systems.

Technically, this air core coil features a 16 AWG wire diameter of 1.32 mm, wound to an outer diameter of 92 mm with a winding width of 33 mm. The total height is 39 mm, and the core diameter measures 30 mm, with a central hole of 5.3 mm and a recess diameter of 25 mm for secure mounting. The ±3% tolerance ensures consistent performance across production batches, while the low DC resistance of 0.72 Ω contributes to efficient power handling. This robust construction from Intertechnik guarantees long-term stability and minimal eddy current losses, making it a dependable choice for critical audio crossover designs.