High value, giant killer speakers?

At the less expensive (not inexpensive) Endeavor  E3 or E5, more expensive is Von Schweikert VR55 Aktives which are better than many at twice the price. Key with speakers and much other equipment is to agree with the designer's ear that you like what they like in terms of musical priorities. Also I tend to prefer designers with decades of experience to hone their craft

Tekton 

I have to give a nod to GoldenEar Triton Reference for being as good as loudspeakers that are roughly twice the price.

Scansonic the poor man's Raidho! 

It’s a hyperbolic cliche. Name the giant being slayed.