The OP has a $10K budget and shouldn’t have much trouble finding speakers that meet his criteria, horn loaded or otherwise.
Every speaker design has its tradeoffs. If it’s not low-level dynamics, it’s tone, coherency, imaging or something. I currently have 3 pairs of speakers in 3 systems and each have their strengths and weaknesses. In Kosst’s defense, horns tend to have a love it or hate it sound, despite all the things they can do well. While I like some horn speakers, I understand why others don’t. I think everyone here can agree that some speakers can manage surprising feats, despite their size and lack of efficiency. For some, a pair of KEF LS50s would be plenty "dynamic." After all, that’s a subjective term, and for which system context must be considered. For my tastes, a pair of Spendor SP100s or Harbeth M40s would meet all my needs, but someone out there would certainly find them anemic by their standards.
Every speaker design has its tradeoffs. If it’s not low-level dynamics, it’s tone, coherency, imaging or something. I currently have 3 pairs of speakers in 3 systems and each have their strengths and weaknesses. In Kosst’s defense, horns tend to have a love it or hate it sound, despite all the things they can do well. While I like some horn speakers, I understand why others don’t. I think everyone here can agree that some speakers can manage surprising feats, despite their size and lack of efficiency. For some, a pair of KEF LS50s would be plenty "dynamic." After all, that’s a subjective term, and for which system context must be considered. For my tastes, a pair of Spendor SP100s or Harbeth M40s would meet all my needs, but someone out there would certainly find them anemic by their standards.