I have an RME HDSP 9632 in a dedicated machine running Gigastudio 3.
On the hardware page in Giga it states that the card is in 24bit depth 44khz.
I have another machine running Cubase SX with a MOTU 2408mk II and the two machines connected digitally (they are in fact locked) via ADAT lightpipe.
When I transfer from Giga to Cubase digitally, (Cubase is at 16bit 44khz), why is there no dithering process required. Is it doing on the fly? I can hear the difference in quality on the two machines, Giga sounding much more present and real (hence the 24bit resolution).