Dayton Audio AC20-70 | 0.70 mH | 0.60 Ω | 5% | 20 AWG

The Dayton Audio AC20-70 air core inductor coil is a precision component designed to elevate the performance of your speaker crossover networks. With a nominal inductance of 0.70 mH and a DC resistance of just 0.60 Ω, this coil ensures accurate frequency filtering, allowing for clean signal separation and improved audio clarity. Its air core construction eliminates the risk of core saturation, making it an ideal choice for high-fidelity audio systems where linearity and low distortion are paramount.

This inductor is particularly well-suited for use in passive crossover designs for bookshelf speakers, floor-standing towers, and custom DIY audio projects. Whether you are building a new system or upgrading an existing one, the AC20-70 delivers consistent performance across a wide range of applications, from two-way designs to more complex multi-driver configurations.

Technically, the coil is wound with 20 AWG wire and features a tolerance of ±5%, ensuring reliable and repeatable results. Its compact dimensions of 39.5 mm in diameter and 14.8 mm in height make it easy to integrate into tight enclosures. The air core design also avoids the hysteresis and eddy current losses associated with ferrite or iron cores, preserving signal integrity. Rated for 2 watts RMS, this coil is built to handle moderate power levels while maintaining stable inductance.

For audiophiles and hobbyists seeking a dependable, high-quality crossover component, the Dayton Audio AC20-70 offers a perfect balance of precision, durability, and sonic transparency.