If you are worried about "harsh", I suggest you avoid Signal Cable. Think abut one of the Level 3 Straightwire products (like Maestro) or mid-priced MIT or Audioquest product.
Signal or Transparent speaker cables???
Currently I have Monster Cable MCXS2s. I am going to upgrade speaker cables. My system is Musical Fidelity a3.2 integrated, a3.2cd player, Paradigm Studio 40 v.3 speakers, and a REL Strata III sub. The sound seems a bit harsh. A Transparent dealer let me try a loaner pair of Music Wave cables. They make for a smoother and more pleasing sound. I am also thinking of Signal. My run is 15 feet. This is longer than Signal will let me return if they aren't what I like. Any thoughts about the two?