I can help with my experience with Series 8 - the Series 10 has the same exact gauge as Series 8, the difference is that every 'group' of conductors in Series 8 is made by two small wires next to each other, in Series 10 every small wire is alone and this is the new so called 'group'. For the sound - I use Wireworld Eclipse 8 rca in a Audio Analogue Maestro system with B&W 805S. Dull high frequencies, lean midrange and super-lean bass, no slam, good speed and 'silence'. I prefer other cables (as JPS SC 2, Audioquest Cheetah, Straight Wire Crescendo, Airtech OCC). My diy silver-gold alloy cable with Mundorf wires and teflon dielectric sound better IMHO. Wireworld Eclipse 8 rca was a big delusion for me - sure it's not a high performance cable - not a neutral cable.
