http://nwcom.info/Manuale/Computers/Sound%20Blaster/COMPREHENSIVE%20EXTERNAL%20CONNECTIVITY.doc
http://nwcom.info/Manuale/Computers/Sound%20Blaster/%D0%9F%D0%BB%D0%B0%D1%82%D0%B0%20Sound%20Blaster%20Creative%20SB%20Audigy2.doc