jafant
I haven't, but it would be easy to do. The QB-6 DSD receives USB from the Mini for Roon, but it sits atop the C-5xeMP so would be easy to connect. The DX-5 DSD is in a different setup with 5-Twenty preamp and amp and KEF Reference 1s rather than LS50s, so comparison is not easy, The C-5xeMP is what got me hooked on Ayre.