Hey! Currently got a pair of Harman Kardon Soundstick III speakers hooked up to my iMac via the 3.5 audio jack. Speakers are fantastic, although i feel i need even more power! Ive been looking at the Bowers & Wilkins MM-1 Speakers, which pack 35w each little more than the Harman's are delivering, however as people say the subwoofer on the harman cannot be matched and the MM1 doesn't feature one. Is it at all possible to continue using the Harman subwoofer alongside the MM1? The MM1 will go through USB opposed to the 3.5 and the harman subwoofer would use the 3.5? Is it possible to dual audio within OSX?