@magnumn - My speaker cables use 2 x 14 gauge solid OCC copper for the Signal wires and 1 x 10 gauge silver plated stranded Milspec for the neural wire
When I tried the 2 x 14 gauge solid OCC wire for the neutral, the warmth and musicality that had been there with the 1 x 10 gague Mil-spec had gone, so I went back to the milspec
Maybe its the insulation? - OCC with a different insulaton would sound very different from my own cables. The cables as they are have a very low noise floor and are very dynamic and detailed.sound with the warmth often associated to Tube gear
BTW I’m using a Bryston B125 Integrated amp with Gershman Sonogram Speakers, which for me, is a very nice combination
My IC’s use OCC Silver for the signal wires and OCC solid copper for the Neutral. But there are some menbers that have tried building my IC’s and preferred using the Duelund tinned copper wire with cotten insulation because they preferred its musicality.
Regards - Steve