Apple Power Macintosh 8600 - Manual (Page 78)

The left and right RCA-type ports accept this type of connector:
If your equipment has a different type of connector, you can purchase an
adapter at an electronics supply store.
Connecting most audio equipment
To connect most audio equipment, follow the steps below. For specific
instructions on connecting a microphone, skip to the next section,
“Connecting and Positioning a Microphone.”
1 Make sure that the audio equipment has a cable with a stereo miniplug connector or two
RCA-type connectors.
2 Place the audio equipment near the computer.
3 Shut down the computer and turn off the audio equipment.
4 Attach cables to the audio equipment following the instructions that came with the
equipment.
Some equipment (such as most headphones) comes with cables already
attached.
RCA RCA
Stereo miniplug
RCA
RCA-type plug
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