http://www.logicprohelp.com/viewtopic.php?p=279783&sid=744909afe130571ded056361121011b9
I use a Motu Ultralite, and Motu 24 I/O.
Solid as can be, especially their drivers.
RME is a step up, hence the price difference.
If you have the money, go RME.
http://forum.cakewalk.com/tm.aspx?m=1423794&mpage=1
I have both an RME FF800 (just recently acquired) and a MOTU 828MKII for a couple of years now.
While I never had any complaints about the MOTU at all having had the RME for a bit now I think the Pre's are considerably better in the FF800. Of course my 828 is the MKII not the more recent MKIII model which sounds interesting with some onboard DSP and other goodies. I have no qulams about MOTU quality though and I reckon they probably beefed up the unit all round with this new incarnation.
I made the move to the FF800 because I thought it had better convertors and pre's than the 828 MKII and consequently was a step up. My limited experience seems to bear that out. Over the past 5 years I've tried to improve overall quality of my sound card having gone from M-Audio Delta 44&66 to MOTU 828MKII and now an RME FF800. Each subsequent unit better than the previous one. In my opinion of course.
对比Motu,好像老外基本一边倒的偏向于RME