Intertechnik HQ56/3.3/150 | 3,3 mH | 0,14 Ω | 5% | 15 AWG

The Intertechnik HQ56/3.3/150 is a premium iron core coil engineered to deliver precise and reliable crossover filtering in high-fidelity loudspeaker systems. As part of the renowned HQ series, this component is designed for audiophiles and DIY speaker builders who demand consistent performance and minimal signal degradation in their audio projects.

This 3.3 mH coil is ideally suited for use in passive crossover networks, particularly for midrange and bass drivers where accurate frequency separation is critical. Its robust construction makes it a dependable choice for both new speaker designs and upgrades to existing systems, ensuring clean, transparent sound reproduction across the audio spectrum.

Technically, the coil features a low DC resistance of just 0.14 Ω, which minimises power loss and maintains driver damping factor. The inductance value is held to a tight ±5% tolerance, guaranteeing consistent performance from unit to unit. Wound with 1.5 mm diameter wire (approximately 15 AWG) on a roller core, it offers an outer diameter of 58 mm, a core diameter of 28.8 mm, and a total height of 46.5 mm. The central mounting hole measures 4.8 mm, and the winding width is 28 mm, facilitating straightforward integration into your crossover board.

With its meticulous construction and precise electrical specifications, the Intertechnik HQ56/3.3/150 is a reliable foundation for achieving accurate, high-quality loudspeaker crossovers.