Some MBP laptop's headphone jack (3.5mm) is also an optical output! Really.
when sending audio out, look straight in to the empty jack... If you see a little red light inside, then it's a digital optical out that can connect to a optical input on a surround receiver or any device with an optical input.
when sending audio out, look straight in to the empty jack... If you see a little red light inside, then it's a digital optical out that can connect to a optical input on a surround receiver or any device with an optical input.