I may be of little help but I own the D1's. The D1's drop off the lows right at 50hz. I have a Rel B3 which adds a lot but also slows the overall sound. The D1's are very laid back and highly detailed without ever being bright boomy or in your face. The Rel B3 integrated fantastically with my Dynaudio C1 Signatures. Raidho's are a lot like electrostatic speakers without the size (very fast and detailed). The X1 is rated to down to 80hz.
My room is 26.5ft X 12ft with the speakers on the long wall.
I have a 110W Octave tube integrated driving them. No power problem for me.
I would consider a Dynaudio C1 as an option. They will go to about 36hz even though they are rated to 45hz. You'll get higher SPL's. You just won't get the clarity/imaging from the blacker background that the D1's have.
That said I have not heard the X1's (too new) but giving you what I can say about my D1's. You should hear a demo of either speaker before making a decision.
My room is 26.5ft X 12ft with the speakers on the long wall.
I have a 110W Octave tube integrated driving them. No power problem for me.
I would consider a Dynaudio C1 as an option. They will go to about 36hz even though they are rated to 45hz. You'll get higher SPL's. You just won't get the clarity/imaging from the blacker background that the D1's have.
That said I have not heard the X1's (too new) but giving you what I can say about my D1's. You should hear a demo of either speaker before making a decision.