Dayton Audio AC20-45 | 0.45 mH | 0.45 Ω | 5% | 20 AWG

The Dayton Audio AC20-45 air core inductor is a precision component designed to elevate the performance of your speaker crossover networks. Crafted with meticulous attention to detail, this 0.45 mH coil ensures accurate frequency filtering, allowing you to achieve a clean and balanced soundstage in your audio projects. Whether you are building custom loudspeakers, repairing vintage cabinets, or upgrading an existing system, this inductor delivers reliable and consistent results.

This inductor is ideally suited for use in two-way or three-way crossover designs where low distortion and stable electrical characteristics are paramount. Its air core construction eliminates the core saturation and hysteresis effects found in iron-core alternatives, making it an excellent choice for high-fidelity audio applications. From home theatre setups to studio monitors, the AC20-45 helps maintain signal purity across the audio spectrum.

Technically, the coil offers an inductance of 0.45 mH with a tight ±5% tolerance, ensuring predictable performance in your circuit. It features a DC resistance of just 0.45 Ω, minimising power loss and heat generation. Wound with 20 AWG wire (0.81 mm diameter), it handles up to 2 watts RMS continuously. The compact dimensions of 38 x 13.5 mm allow for easy integration into crowded crossover boards.

In summary, the Dayton Audio AC20-45 air core inductor provides a dependable solution for audiophiles and DIY enthusiasts seeking precise crossover behaviour with minimal signal degradation.