Product Overview The EI14 600:600 Ohm 1:1 Audio Transformer is a compact, low-frequency audio transformer designed for signal isolation, impedance matching, and reliable audio signal transmission. Featuring a 1:1 turns ratio, 600Ω primary impedance, 600Ω secondary impedance, and a 4-pin design, this transformer is suitable for microphone circuits and a variety of professional audio applications. Its compact EI14 structure makes it a practical choice for electronic equipment