Intertechnik HQP56/4.7/12 | 4.7 mH | 0.47 Ω | 5% | 17 AWG | Mushroom Core Coil

The Intertechnik Ferrobar mushroom-shaped ferrite core coil delivers exceptional performance for demanding audio crossover networks. Designed with a distinctive mushroom profile, this 4.70 mH inductor ensures reliable inductance stability, making it an ideal choice for high-fidelity speaker systems where precise frequency filtering is paramount. Whether you are building custom loudspeakers, upgrading existing crossovers, or repairing vintage audio equipment, this coil provides consistent and accurate signal management across the audio spectrum.

Technically, the coil features a ferrite core that minimises magnetic saturation and maintains linearity under varying loads. With a DC resistance of just 0.47 Ω and a generous 1.12 mm copper wire diameter, it handles higher currents with minimal power loss, preserving sound quality. The external diameter measures 56 mm, with a central bore of 5 mm and a recess diameter of 25.5 mm, while the core diameter is 28 mm and total height is 35 mm. The winding width of 23 mm ensures efficient coil geometry. Manufactured to a tight ±5% tolerance, this HQP56 series component guarantees repeatable performance for critical crossover designs. Trust Intertechnik’s engineering to bring clarity and precision to your next audio project.