How to connect old speakers to new iMac via optical cable?
I have a pair of Edirol MA-15D speakers that were connected via optical cable to a Mac pro for video editing. We have since bought an Late 2013 iMac to replace the old system. There is only a headphone jack port at the back of the iMac. How would I hook these speakers up to the iMac please? Thanks
iMac, OS X Yosemite (10.10.4)