Best way to get stereo from mono out?

If you connect headphones to the iMac headphone-output and hear both sides of the sound, the cable is probably broken.

Elijah wrote:If you connect headphones to the iMac headphone-output and hear both sides of the sound, the cable is probably broken.

Or the connection itself is broken.

Just because there is a single output doesn't mean that it is mono. It's likely that output is using a TRS 1/8 jack type connection, which IS stereo.

The OP is confusing because it lacks that information.

gumbo23 wrote:To clarify - I am running a patch cable out of my iMac and into the MPC One. By missing info I mean that one channel is absent. I can hear the other channel very quietly. What I'm looking to do is get true stereo into the MPC

For starters, all outputs on your iMac are stereo. A patch cable is a mono cable, so not sure why you are using it. Use a stereo cable. If your audio is still coming out mono (or with one channel extremely faint) using a proper stereo cable, then you either have a bad cable or you have a bad jack on your iMac - so try another output instead. Or add a USB audio interface and send your audio out through that. Also, check your iMac audio settings and make sure you didn't drop the balance level to one channel by accident...