Solid core Versus Stranded Speaker cables

The key to my experience with solid core conductors are several 
factors for instance , I use the purest  occ-0 Crystal Copper  much less grain structure in the metal higher purity,
2. - dielectric thin Teflon is the closest to air which would’ve the best dielectric , multiples of Individually wrapped conductors.
in my case 8-21awg Teflon- occ Copper strands which = a awg 12 
per legg , twisted together then tinned with a top Cardas ,WBT,Mundorf ,or Johnson’s 5% Silver solder crimp then done .
and use High purity Gold over high purity Copper, or Silver,
mo brass many cheaper bananas ,and spades use brass which defeats all your hard work it is 4x less conductive then Copper.
follow these guide lines and enjoy the musical results.

For those of you who like solid core wire, try 14g Romex. Really! Tie the center ground wire to the black and connect those to your speaker black terminal. Connect the white wire to the speaker red  terminal.  Romex cable is designed so that the fields of the white and black wire don't interact. It's a cheap experiment. 

I'm happily using SSB AIRCOM PLUS coaxial cables as speaker wires (2 each, just the core connected), but "someone" told me that OCCs are - mutch ? - better than OFCs...
Since I LOVE coax geometry in audio field, does anyone knows thick OCC coax cables ?
Thanks in advice !

I recently decided to replace my Rocket 33 bi-wire cables with single wire just to see the difference between single and bi-wire with my Klipsch Heresy IIIs...already owned an excellent pair of Type 8 single wire, and the 8s sound better so they're staying. Note for Kaitty, AQ power cables are solid core.

This is a great thread, and a very good time for me to stumble on it. I have been into this hobby for 50 years, and of all the aspects of it, my favorite is cables. Interconnects,  speaker cables and to a much lesser extent power cords. I have gone from zip cords, to monsters, AC, Tara labs, Purist Audio, and many more i can't remember,  not to mention the home brews.

I never paid any attention to the solid core or stranded aspect until about ten years ago when I bought a set of Gallo  Acoustics Micros for a small system.
I noticed they came with their own 18g solid core speaker wires that was the recommended wires to use.
I found this very interesting, as I had never seen a simple solid core wire used for speaker wire before, much less recommended by a manufacturer.
So I decided to try it in my other systems, and like others have said, a fog was lifted. 
Since that I have stuck with mostly solid core speaker cables, I have used AQ Rocket 88, then to Tara Labs RSC Prime cables for the past couple years witch I find really nice, very open, detailed and well balanced. The AQ was ok, but much darker and heavier in the bass.

I tried some 12g magnet wire in biwire config, it was good but just too hard to manage. 
I also have solid core and stranded interconnects witch I swap out from time to time, but I fine that speaker cables make a bigger difference. 
Sometimes I just feel like giving my old Monster Reference 2s a try with a different amp or preamp.
For the past few months I been on this Kimber trial again, but this time with the cheaper stuff. I have had Monocles and Heroes, but I have never tried PBJ or 8TC, so I started with the PBJ, from source to amp. Really nice for such a simple basic clean design. Now , last week I saw Kimber place a demo pair of 8ft,  8TC on Ebay at a great price and I just had to try them.
I am still burning them in some more, they are not solid core, but they do sound nice so far. This is what makes this hobby fun.