High value, giant killer speakers?

I think the Kii Three has a very competitive price since it contains an amp and a dac.

That said we as a community probably have too too many ideas of what a system should sound like to really have generic "gigant killers"

Eminent Technology LFT8 either A or B.  I prefer A cause I am a devoted dipole fan. ET's are still available new in theory but the wait is loooong. Magnepan's were my first love and the 1.7 and bigger are must audition speakers. Gee, there's that dipole thing again.  The recommendation to "save up, get what you want used and stay off the merry-go-round" is words for the wise.  Your worst problem will be getting to hear a particular speaker in your area.  

GoldenEar. Great value. Money is spent on driver and x-over tech not in expensive wooden enclosures.  Read the reviews, then take your money and music to the dealer to listen and compare....

I would vote for two speakers.
1. Tekton Design Ulfberht. Amazingly dynamic and realistic full range sound.
2. Triton Reference. Powerful and refined.

Both sell for about $9,000.

I find that the Dutch and Dutch punch well above their weight, in particular due to their acoustic design.

I wouldn't describe them as being necessarily cheap, but when you consider that they have all of the electronics already on board (amplification, dacs, dsp, room eq, and eventually roon), the value proposition starts to become very strong.