Thanks for the 16 Gauge Neotech strand copper wire. I just finished a ‘State Of The Art’ subwoofer Speakon cable shown in the image. You originally recommended 18 AWG Neotech copper strand for this project, but I plumped for 16 AWG instead just to be on the safe side. I chose PVC over teflon for the extra ‘flexibility memory’ that PVC provides. I have previously noticed that teflon sleeve tends to be slightly stiff on the Neotech wires. So the end result is a cost no object Subwoofer cable using the purest copper in the world combined with the world beating Neutrik Speakon connector.