I'm going to be buying an iMac after Xmas to replace my craptacular samsung laptop. With my laptop I use a Logitech speaker system (a sub and 2 speakers) that plugs into the audio jack. When I get my Mac I want to also buy a Bluetooth speaker to have elsewhere in the room to create a kind of 'surround sound' by using it in combination with the audio jack logitech speakers. But, I'm not sure if this is possible. Is it? Can you simultaneously use speakers via the audio jack as well as Bluetooth?