Intertechnik TO10/3.3 | 3.3 mH | 0.17 Ω | 5% | 16 AWG | Torobar Toroidal Coil

The Intertechnik Torobar iron-core toroidal coil delivers exceptional performance for demanding loudspeaker crossover networks. Engineered with precision, this 3.30 mH inductor ensures accurate frequency filtering, allowing you to achieve clean, natural sound reproduction in your custom speaker builds. Its robust iron-core construction minimises magnetic interference, making it an ideal choice for audiophile-grade projects where signal purity is paramount.

This coil is perfectly suited for use in passive crossover circuits, particularly for midrange and bass drivers where higher inductance values are required. The compact dimensions—73 mm outer diameter, 31 mm height, and a 5 mm central hole—enable straightforward mounting within tight enclosure spaces, whether you are designing bookshelf speakers, floor-standing towers, or professional monitoring systems. The 1.30 mm copper wire diameter and low DC resistance of just 0.17 Ω contribute to efficient power handling and minimal energy loss, preserving dynamic range and detail.

Technical precision is assured with a ±5% tolerance rating, guaranteeing consistent performance across production batches. The toroidal shape further reduces stray magnetic fields, enhancing crossover accuracy. Finished with high-quality winding and a durable core, this Intertechnik component offers reliable, long-term performance for discerning audio enthusiasts and professional designers alike.