According to an article posted on AppleInsider, the new MacBook Pro's do not support audio line out (digital/analog) through the headphone jack. http://forums.appleinsider.com/disc...rops-optical-audio-out-through-headphone-jack Does this mean that you cannot use any 3.5mm external speakers? I am thinking of the small Logitech series that have separate power and 3.5 mm input into the headphone jack. http://www.logitech.com/en-us/product/speakers-z130?crid=47 Or these http://www.logitech.com/en-us/product/multimedia-speakers-z213?crid=47 Thanks!!