ITiunes music plays fine from MacBook to Bose computer desk-top speakers, but connecting same digital single pin cable to Cambridge SOund Works home theatre sound system aux input or using adpater to split to red/white stereo input jacks results in mega feedback. Anything I can do?
Hmmm... a few thoughts.
Are you connecting the cables to an input marked Phono on the home theater receiver?
If connecting the Mac's headphone output to the receiver, check to make sure that the internal Mic on the laptop is muted, and that the volume is set about 3/4 of the way up