E-5Computer connection and settingsWhen you use your computer as the input source of the HP-A3, you need to make sound output setting appropriately.<Memo>:When you use an external digital device as the input source, you do not need to make sound setting of your computer, however, USB con -nection is required to power the HP-A3.Computer requirementYou can connect a computer that satisies the fol-lowing requirement.• A USB 2 port is provided.• OS: Windows XP or later, Mac OS X ConnectionConnect the HP-A3 and ...