Intertechnik CO30/056/080 | 0,56 mH | 0,30 Ω | 5% | 20 AWG

The Intertechnik CO30/056/080 iron core choke coil is a precision-engineered component designed to deliver stable and reliable performance in high-fidelity loudspeaker crossover networks. Its robust construction ensures consistent filtering characteristics, making it an essential part for audiophiles and DIY speaker builders seeking to optimise sound quality.

This choke coil is ideally suited for use in passive crossover circuits, where it effectively separates frequency bands to ensure that each driver receives only the signals it is designed to handle. Whether you are building new speakers or upgrading existing ones, this component provides the low-loss performance required for accurate sound reproduction. It is particularly effective in low-pass and band-pass filter applications, where its iron core design offers high inductance values in a compact form factor.

Technically, the coil features an inductance of 0.56 mH with a tight tolerance of ±5%, ensuring precise frequency control. The DC resistance is a low 0.30 Ω, minimising power loss and heat generation. Constructed with 20 AWG wire (0.8 mm diameter), it offers excellent current handling. The external diameter measures 30 mm, with a core diameter of 19 mm and a total height of 22 mm. The winding width is 17.5 mm, and the central mounting hole has a diameter of 5 mm, with a recess diameter of 17 mm for secure installation.

In summary, this Intertechnik choke coil combines precise electrical specifications with durable construction, making it a reliable choice for any serious loudspeaker project.