I have owned the proac d15 D2 and tablette signature. I have also owned the Dynaudio audience 42, s3.4, C4, contour T 2.5 and the xeo 3. My personal preference is strongly to Dynaudio. I never was satisfied with any of the Proacs in fact I think I may have in a way liked the tablette best. I never did use tube amps on any of these but did try many combinations of integrated amps as well as very well respected combinations of solid state amp and preamp. The Proacs to me always had a hollow sound that is best way I can call it, they all had it, after some time I decided I am just not a proac fan at all. Dynaudio is very opposite even their smaller speakers have a great weight to the sound that is well balanced. None of the Dynaudio speakers I've owned showed any signs of bright or forward sound just a great balance that can be listened to without fatigue. I have never heard the special 25, others have said it is different from your average Dynaudio sound. I recently got the xeo 3 and they are incredible all in one wireless speakers that have all the attributes of the Dynaudio house sound.