These are made by Transparent Cable, they make some very expensive cables.
This is just a stripped down version with no fancy EQ boxes or pretty jacket that increases a cable's price dramatically...and these sound good.
Think BMW...their low end line will still have the 'family traits'...but without all the bells, whistles, bluetooth, GPS & V10
The cable's sound provides slightly fuller bass, smooth highs, very nice definition in the midrange with vocals just slightly forward.
If you have a thin sounding system, these will help fill it out.
I have a few different speakers that I swap and the 'sound' using these cables is consistent. It's a nice cable for not too much money.