Hook-up Wire: Duelund DCA16GA vs Neotech STDCT-16 vs Cardas 15.5 AWG

The Duelund is colored with the oiled cotton 

and micro  arching between strands ,the Cardas sounded noticeably cleaner 

especially low level detail , even vs Neotech ,but getting the enamel off the strands a pain in the ass at first , you need a hot iron ,or stainless brush first on dremmel 

then clean, flux then good Cardas solder to tin nicely and this wire in the 15.5 gauge took 2-250 hours to fully settle in ,remember a speaker is only pulling 30-40 volts tops if that , I felt that was a good average size gauge l

audioman58,

thank you for your Input

Would you recommend Cardas chassis 11,5 AWG wire for loudspeaker wire Instead of Duelund dual DCA12GA - aim Is neutral sound fast detailed controlled bass 

loudspeaker Is 6 ohm 88 db effective

one more question

why does almost no one mention Neotech stdct occ copper