USB is good,
but being a "Universal Serial Bus" means sharing (running the printer
and other peripheral) and some noticeable glitching.
firewire is a peer to peer protocol, and provides better audio. Yamaha
has even further refined this with M LAN, based on firewire protocol.
Long Run Audio 740 594 6191
Dale A. Francis 4188 Long Run Rd
dale @longrunaudio.com Athens, OH 45701