I currently own a MR816CSX, but since my old pc died three days ago, I have to build a new pc, so I am also looking for a new audio interface. First I came across the UR24C and I do like the USB-C Feature, but sound quality wise it seems like the Motu M2/M4 are the better choices. Does anybody has any experience with one of them? Will they sound better than the 12 year old MR816CSX. Or is it worth to plunge even more money for an Apollo Twin X.