Quote: Originally Posted by
nasa 
pros with using USB:
Better sound quality (higher S/N ratio, louder volume)
the cons being:
Higher cpu usage
Higher usb bandwidth usage
Higher power usage
Better Sound Quality - In most cases
Higher cpu usage - Yes but not much, for the Bloat (our product) it was about an extra 3%-5% on a 1.8ghz machine
Higher usb Bandwidth usage - Yes but this wont affect sound quality or other USB components
Higher power usage - Yes, to be precise a maximum of 2.5watts (5v @ 500mA) for each USB device.
cheers,
Brent