Yes, i have QX2 and QX4 in my system and they make a huge difference for the better. Much bigger and more airy soundstage to pick on two positive differences.
Raidho use Nordost cable to internally wire their speakers and i feel good synergy exists by using external wiring of the same brand.
I understand you comment on the bass. Some would say the bass is a tad lean and certainly this would be true if compared with the Wilson Sashas. The Raidho's trade bass depth for speed and pin point accuracy which in a small room (like we both have) is highly beneficial.
Love your choice of color. If it was a struggle to chose the color then it looks to be a worthwhile struggle...
What are the dimensions of the room? Were you able to try the Raidho C-2.0 speakers before purchase? I bought some C-1.0 speakers in part because i thought the C-2.0 might be too much for my small room.
I'd be interested to know in what your previous speakers were and what else was considered before buying the C-2.0?
Looks like you are using Nordost speaker cables? What are your other cables?
I see you are driving the C-2.0's with Bel Canto mono blocs. Are these new and if so i'd also be intested to know in what else you considered?