Best Speaker cable in the $400.00-$500.00 range for 2 meters


I currently have a Rogue Audio Magnum power amp, Rogue Preamp, Triton 5 speakers with 2 SVS subwoofers,
and a Cary Audio CD player. My current speaker cable is by Discovery Cable. Looking to upgrade my cable and
was recommended the Nordost White Lightening which retails for $377.00 a pair for 2 meters and the Nordost Purple Flare, both in the Leif family of Nordost for $500.00 per pair  for 2 meters. In short my budget is
 $500.00 per pair. If there is any other cable that can be recommended in my price range that my be superior
 I would appreciate any suggestions.  Looking for the best use of the $500.00.
128x128kjl1065
Big +1 @mayoradamwest -- you really need to give us some idea of what you're looking to improve upon or at least what aspects of sound reproduction are most important to you or you're just going to get a mishmash of random recommendations that may or may not match with your personal preferences. 
Go to Madisound online .Supra from Sweden topcables is around a awg11
use a 5- 9s purity Copper over 200 strands and each indiividual strand  is Tin plated to eliminate oxidation , as well as microarching  according to their engineering guide between strands .this method has been used for decades in Europe. It sounds very good I just rewired my Loudspeaker with this .it also twists the  wires in ahelex withCotton string on 2sides for antivibration then an outer thin plastic outer  type jacket. For around $400. This has won Many awards in Europe ,but speaking of this top model. 
I could make a recommendation for you, but only if you don’t mind coming in at about half your budget [without sacrificing performance, of course ;) ].
Let me know if you’re interested.
Cheers!

Nawaz
Try Reality Cables. I replaced my mega expensive Purist with them. Gregg Straley customizes them and cryos every cable. They sound fantastic! www.realitycables.com
 Sounds like your local dealer likes Nordost 
nothing wrong with building a relationship:-)