You might be thinking of this, since I post this fairly often when someone has mounting concerns with their QS speakers.

It's Wiremold, a paintable surface mount raceway. The back half attaches to the wall and, while holding the cable positioned correctly, the paintable cover snaps on. Yes, I got it at Home Depot or Lowes.

::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::