The main chage appears to be the addition of balanced jacks for the analog i/o part of the interface (hoorah!). All analog I/Os are now 24-bit.
Another nifty feature is the abillity to configure each input to be +4 or -10 (via an internal jumper)
This new interface also compatable with the Core PCI system offers 12 channels of super hi res audio I/O.
24bit/96khz to be precise - that should keep the bats amongst us happy.
For more go read their blurb...More From: MOTU