I had some nice 4 conductor solid speaker wire (either 16 or 18 gauge) that I used to use in an old car audio install. I used it in my HT system for quite a while. I just twisted the red and black conductors together to make a single run. Worked great. I replaced it with DH Labs Silver Sonic that I got virtually for free. It has solid conductors as well.
Regular Radio Shack solid core wire is just okay for speakers, but some entry level audiophile cable is only pennys more and ten times better sounding. Purity os copper makes a big difference, for instance.
Look into Audioquest F14 and F18 or equivalent cables and then terminate the copper ends your self and I think you will be better off. I used this stuff on my maggies for years but I stepped up to the expensive stuff.