Upgrading the UR824


I want to upgrade my DAW, this is my current setup:

Cubase 7 on PC -> UR 824 as DAW -> ADAT A goes out to Audient ASP 008 -> ADAT B goes out to Universal Audio 4-710d.

I never use the 824 preamps, I just use the USB and ADAT connections on it. So I am looking for a box that does the same thing as the 824, only better.

Any suggestion?

If anyone out there runs a professional studio using cubase, I would love to know the setup for that.