Speaker Cable Upgrade... Advice Please


My current cables are Cardas Cross.  My speakers are Wilson Sophia 2.  I just changed electronics from Audio Research tubes, PS Audio DAC, and Whest Phonostage to the Devialet Expert 220 Pro.  The sound is a bit more bright and forward than with the previous gear.  I am happy overall, but I would like to tame it a little.  I am considering an upgrade to the next price category in speaker cables.  $2-3k retail new for a 2.5 meter pair.  Any suggestions for a cable that will work well with my gear?  Any thoughts on Nordost in that price range?  Perhaps Heimdall 2?

The brands that have peaked my interest are Purist, Verastarr, Nordost, and Cardas.

thanks!
Mark
marktomaras
First unplug everything for at least ten minutes. Now clean all connections and power cables and hook back up.  Then Last leave the system on for 3 days straight playing music low without you listening . Now when you listen again hopefully it will be a Saturday or Sunday night about 10 when the power grid is less noisy or dirty. and have a serious listening session. If nothing has improved it is time for an upgrade. If it has improved then you know why. I believe in the burn in effect to a degree but just by leaving your system on at least that long will improve its sound. If it still sounds shrill or bright unplug your power cable from the wall for 5 minutes. Then you make your decision after listening to a half dozen well played tracks that you have dedicated to memory. Mike 
PAD Poseidon or higher or Cardas Clear Reflection is worth looking into.  Best.
Oh, by the way...I was sure tempted to buy your ARC LS25.  I had one years ago and wish I never parted with it.  Take care.

David