Hi. I'm building a new HT/Game Room and I don't know why the drywallers use 1" corrugated flexible tube all around my front setup. At least they put couple of them. Now I need to find some thin speaker cables in order to push them inside that small hole.

My question is... are 16-gauge speaker cables good enough? My longest run will be like 30 feet. Also I need some thin RCA for my 2 subs. Any suggestion? I need them to be thin but also to work properly.

M60v1 w/2xUPA-1,VP160,QS8v1,4xM3(Ceiling),1xHSU STF2,DenonX5200,PS4,XboxONE"