I currently have an EP2500/4000 and a CS-18.1. They are together right now but I'm looking to move the amp into a cabinet. The speaker cable run will be 25-30 feet. I have a spool of 14ga in-wall cable which I understood to be OK for my 25-30 foot runs for the other speakers. My question is how much difference does it make that I'm now doing this for a subwoofer? There are so many more watts running through this thing, that it just seems small to me. But maybe it is fine, I have no idea.