Looking for a good full range floor stander

I have a set of proac D48r which I love. They replaced a set of Magnepan 1.6.  The Maggie’s were amazing in there own right, but the d48r seem more musical to me, and they run extremely well with a smaller amplifier, in my case an ARC REF75se.  The proac have amazing detail without sounding analytical and are just an amazing speaker to listen to all types of genres.  I’m extremely happy with them. Only thing I wish is that I had more free time to enjoy them. 

<<We tend to favor the bigger companies for one reason which is not price but ultimate performance tends to be with these companies, which have the raw engineering talent and budget to push the boundaries of sound.>>
There you have it - from the horse's mouth.

Legacy-Audio Focus.
Infinity Kappa 9.

Pretty sure your 14B are the 7B’s in one unit, I believe you can drive the Kappa 9’s but, I would make sure the 14B is stable down to 2-ohms.

I currently own both and they can deliver some serious spl.

I reread and you are shopping in the $12-16k range. My first listen would be the Vienna acoustics ‘the music’ your rooms big enough to handle the bass from the 3 9” woofers per box. 

Dear paliden,
Good morning / afternoon / evening. I have owned a pair of ProAC K6s for nearly a year and have been consistently delighted with them. No matter what the genre or era of music, these speakers deliver. They're well-balanced from head to foot, dynamic and accurate, but also highly engaging and musical. Yes, I too listen to some Cream, Clapton, Pink Floyd and a few pleasant-sounding ladies, all of which the K6s handle with utter aplomb.

However, my room is nothing as large as yours - it's only about 25' long, 13' wide and 13' high. As has been brought up several times in this thread, therefore, I am not at all sure whether the K6s will work as well for you as they have for me. The K8s may well do the trick, but at list price they are beyond your stated budget.