Hey,
I was looking at this also, wondering if anyone has used with Sonar?, and what's the quality of their preamps, apparently "World class"? Thought I was sold on RME, but now wondering again which type of upgrade for new interface, I/O type, and computer to choose, USB, Thunderbolt, Firewire? ETHERNET, (assuming most standard LAN ports), its probably the most likely to still remain constant on PC (not on MAC, now uses its TB port for ETHERNET port, adaptor required), TB on PC may or may not evolve, Firewire interface becoming ancient or not available for new PC's, or MAC (but continuing on audio interfaces?), USB 2 changing specs almost daily (today its USB 3.1, at least its backward communication compatible, not speed wise).
Anyway I'm starting to go through manual, it says its compatible on its own to PC and most DAW's, no other proprietary hardware needed, it doesn't say SONAR specifically, but anything ASIO supported. However, also it may be more practical if used in conjunction with one of their server/processing systems, to run many plugin effects with "live" monitoring without noticeable latency, and/or reduce PC CPU loads while recording and monitoring, and some types of DAW plugins can be loaded into its StudioRack software, maybe (somewhat like ProChannel, I believe). Although Sweetwater indicates in contrast not on its own without adding one of their DSL servers units, so not sure which it is? The IOS version includes the DSL server but mucho $$$, but I may not need a new PC with this.
I wonder what will be new tomorrow?
Ill try and post what I find out.
Cheers