Re-wire of speakers to get more Warmth and resolve across the band

Hello,

Looking to re-wire my speakers, they currently have simple 16 gauge black/red copper wiring. 

I am looking for a warmer more revealing sound across the board. It has plenty of dynamics and the bass region sounds good to my ears.

Should I go with a high gauge/ grade copper? Go with something like the Furutech or Kimber offerings in bulk?

These are Tekton Pendragons.