Intertechnik TRI55/027/0.50 | 0,27 mH | 0,162 Ω | 1% | 24 AWG

The Intertechnik TRI55/027/0.50 air core coil is a precision component designed for audiophile-grade loudspeaker crossover networks. Its 0.27 mH inductance and exceptionally tight ±1% tolerance ensure accurate filtering, preserving the integrity of your audio signal for natural, uncoloured sound reproduction.

This coil is ideally suited for high-fidelity speaker builds, from two-way bookshelf designs to complex multi-way systems. It excels in crossover applications where minimal distortion and consistent performance are critical, making it a favourite among DIY enthusiasts and professional designers alike. Whether you are upgrading an existing pair of speakers or constructing a new set from scratch, this component delivers reliable, repeatable results.

Technically, the coil features a 24 AWG wire diameter of 0.5 mm, wound on a 28 mm core with an outer diameter of 55 mm and a total height of 30 mm. The DC resistance is a low 0.162 Ω, minimising power loss and heat generation. The central hole measures 5.3 mm, with a recess diameter of 25.5 mm and a winding width of 23 mm, facilitating straightforward mounting. The ±1% tolerance guarantees that each coil performs to specification, ensuring consistent crossover behaviour across both channels.

In summary, the TRI55/027/0.50 from Intertechnik is a high-quality air core coil that combines precise inductance with low resistance, making it an excellent choice for discerning audio projects.