Are these Speakers the BEST on Planet Earth ?...

 Maybe they are..
 
https://www.kiiaudio.com/media/GENERAL/docs/reviews/kii3hfn818lowrez.pdf  

@teo_audio:  Save your keystrokes!      There are many posers on this site, that think they know something about Science.        All obsessively attempting to categorically prove their side of an argument, with their favorite THEORY.      Classic Dunning-Kruger cases.       Thus far, what Science has taught anyone that’s been paying attention is; there’s another side to this Mobius Strip of a universe we haven’t found, yet.                                                     Occasionally; I feel guilty for picking on them.

Give me a pair of "The Apogee" or the mighty Infinity IRS V, that's what I consider to be in the worlds greatest speaker collection.

8"x48"x16"   and 112 pounds  

At least to me the images I have seen can be misinterpreted as a much larger speaker. Another strike against it being best in world- it's smallish. You don't even begin to be in "best in world" class unless you can reach  about 5.5-6 foot (2M), imo. Scale is so much more important than people want to believe. 

I'm sure it sounds wonderful, stunning, etc. But, I have heard many wonderful, stunning speakers that aren't best in world category. Then again, it's not priced as though it has pretense to be best in world, which is strongly in its favor. It may be priced appropriately to performance. I would guess it to be a lovely listen.  :)

Plus one for scale.        When I hear complaints about systems being unable to deliver the dynamics and size of a live orchestra, I guess they’ve never heard any of the IRS Series (even the Beta), with (say) a pair of VTL 300s.               Perhaps some big Wilsons, or- Avantgarde Trios, with some stacked Basshorns.      In the right room, of course.                                 Yeah: scale!