I haven't heard the D9s but spent a little time with the D7s. Smooth and very natural sound. I was pleasantly surprised and seemed extremely neutral to me.
Need to be paired with a neutral to slightly forward amp to meet my taste. Personally much prefer these to the Kef Reference line or the B&W 804s. With Naim gear they sounded dark where Naim would pair well with Kef Reference, 804s or even the Focal Kanta No 2 and Sopra No 2. If your amplification is warmer I would lean toward Focal in that price range assuming you can tolerate how they look.
Harbeth is a different animal. Excellent speaker but you have to like Harbeth's sound. I like it, don't love it. Never heard a ProAc
Need to be paired with a neutral to slightly forward amp to meet my taste. Personally much prefer these to the Kef Reference line or the B&W 804s. With Naim gear they sounded dark where Naim would pair well with Kef Reference, 804s or even the Focal Kanta No 2 and Sopra No 2. If your amplification is warmer I would lean toward Focal in that price range assuming you can tolerate how they look.
Harbeth is a different animal. Excellent speaker but you have to like Harbeth's sound. I like it, don't love it. Never heard a ProAc