Agree with all above.. ARC doesn't make a bad amp SS or tube. You will not go wrong here. I used a D200/SP9 pre and auditioned a 100.2 and was very impressed with it. Very similar, the 100.2 gets the nod for refinement, detail and bass punch, but otherwise close. I dont have experience with the D400Mk11 but those here that do I would trust the opinions. I ultimately went with VTM 120 monoblocks/S15 pre amp combo, as the 120's were a rare find, and found the SS amps were mighty close in sonics,especially timber. The tubes add the extra bloom in the upper mid and highs, but loss out in the tight bass dept.( to be expected)
I could easily live with the 100.2 and never look back. Hope it helps!
I could easily live with the 100.2 and never look back. Hope it helps!