Grover Huffman Speaker Cables

Contact the manufacturer and ask them. I'm sure they know better than anyone else.

Grover either answers the phone or calls back within a day or so. Good guy. Straight shooter. 

Sorry, but the Grover Huffman SX+ speaker cables is a poor #14.
http://www.groverhuffman.com/speakercables
What thickness do you need?
(tell me the length and your amplifier’s DF (Damping Factor) and I’ll calculate it for you).
All other sayings of Grover Huffman are none relevant: Skin effect, magnetics etc’.
They all come to market his stuff, as he has no idea what he is doing.

Oh really how about a competition 

here's an email I recently received regarding my speaker cables

" Floored by these speaker cables. I had no idea that speaker cables would have such a strong influence on the sound. I assumed the SUT to pre would be the biggest change, but I’m not sure.
Maybe old speaker cables (audioquest Aspen) just sucked?!
Anyway, you are a talent. And I’m grateful.
Brian

Come on b4icu let's compete what are your cables? Let's listen to them.