Audio Class: The Tools: Cables and Connectors

Unbalanced Connector Types

Phone (1/4” and Mini)

  • Used for Consumer microphone level
    Beware of high impedance!
  • Used for musical instruments
  • Used for Pro unbalanced line level
  • Variation: Mini-phone (1/8”) for mic & headphone

1/4 inch Phone plug (2-circuit)


Mini-phone plug

Phono (RCA)

  • Used for consumer line level
  • Also used for phono signal

RCA Phono Plug

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Audio Class © 1993 Richard Crowley