Intertechnik HQP56/2.7/18 | 2.7 mH | 0.31 Ω | 5% | 17 AWG | Mushroom Core Coil

The Intertechnik Ferrobar mushroom-shaped ferrite core coil offers a refined solution for audiophiles seeking to minimise distortion within their crossover networks. Engineered with precision, this 2.70 mH inductor is ideally suited for high-fidelity loudspeaker designs where stable inductance and low signal degradation are paramount. Its robust construction makes it a reliable choice for both DIY enthusiasts and professional audio engineers aiming to achieve cleaner, more accurate sound reproduction in passive crossover circuits.

This coil excels in demanding audio applications, particularly in high-power handling scenarios where conventional air-core inductors may introduce unwanted distortion. The mushroom-shaped ferrite core ensures a concentrated magnetic field, reducing stray flux and improving overall efficiency. With a DC resistance of just 0.31 Ω and a generous 1.12 mm copper wire diameter, it supports substantial current flow while maintaining low power loss, making it ideal for bass and midrange drivers in multi-way speaker systems.

Technical specifications highlight its thoughtful design: an outer diameter of 56 mm, a recess diameter of 25.5 mm, and a central bore of 5 mm facilitate straightforward mounting. The core diameter measures 28 mm, with a total height of 35 mm and a winding width of 23 mm. A tolerance of ±5.0% ensures consistent performance across units. This Intertechnik component combines durability with precision, offering a dependable upgrade for any serious crossover network.