Vortex Sound Research

Hi folks, I'm considering an RME UCX II or UFX II, but wanted to check what word on the street was. They advertise being DC coupled for eurorack use. My main concerns are how well that works, and how well it works in tandem with Expert Sleepers gear - I'm on an M1 Mac so that would be through aggregate devices.

I also wonder whether anyone has tried plugging the ES-3 modules into RME's ADAT IO and how that works.

thanks!