EI14 600:600 Ohm 1:1 4pins Audio Transformer Our EI14 600:600Ω 1:1 Audio Isolation Transformer is designed for low-frequency audio signal transmission and isolation in microphones and other audio equipment. Featuring a compact EI14 core, a 1:1 turns ratio, 600Ω:600Ω impedance, and a 4-pin configuration, it offers a practical solution for audio circuit integration. Cost-Effective Alternative Solution For customers seeking alternatives to established international audio