Audio transformers can:

  • Step up (increase) or step down (decrease) a signal voltage.
  • Increase or decrease the impedance of a circuit.
  • Convert a circuit from unbalanced to balanced and vice versa.
  • Block DC current in a circuit while allowing AC current to flow.
  • Electrically isolate one audio device from another.

High Fidelity 600:600 OHM Audio Transformer

C-4000 Gapped Output Transformer