iMac Line-Input for audio
I've noticed my 2017 iMac doesn't have a line-in for audio. I've read I can use the headset jack as a line-in for the audio by changing the settings on the sound input, but the only option available is the built in microphone. There is no option to change input to line-in. What is the solution, as I am trying to record.
2017 iMac