2.1 systems are baiscally stereo anyway. They just use a subwoofer (mono) and stereo left and right. The subwoofer channel is derived from the stereo mix. So a set of Harman Kardon Sound Sticks for example would work perfectly fine with a mini or any other stereo device (iPod etc) for that matter.TyleRomeo said:Can you hook up a 2.1 sound system to the original mac mini with a G4 chip? Or does it only support 2 speaker systems.