Nothing new here ... OCC copper cables have been around now for a long time and there are many cable manufacturers offering them.
As far, in general, OCC cables “sounding better”, there is no silver bullet upgrade and improvements solution here because,
(1) OCC brand1 can (and frequently will... ) sound “different” ( = not necessarily “better”....) than OCC brand2, and/or compared to silver cables and/or hybrid options.
(2)audio improvements ( ... or not ) are entirely listening room and system dependent .
(3) there are many other cable material options that work well or better (depending on the bespoke system in question) including, inter alia, silver and hybrid copper / silver offerings.
(4) Conversely, all the upgraded cables in the world may not invoke audio improvements in certain systems ... full stop.
Until you actually roll up your sleeves and hands-on experiment yourself in your bespoke listening arena and on your system, you wont know .
As far, in general, OCC cables “sounding better”, there is no silver bullet upgrade and improvements solution here because,
(1) OCC brand1 can (and frequently will... ) sound “different” ( = not necessarily “better”....) than OCC brand2, and/or compared to silver cables and/or hybrid options.
(2)audio improvements ( ... or not ) are entirely listening room and system dependent .
(3) there are many other cable material options that work well or better (depending on the bespoke system in question) including, inter alia, silver and hybrid copper / silver offerings.
(4) Conversely, all the upgraded cables in the world may not invoke audio improvements in certain systems ... full stop.
Until you actually roll up your sleeves and hands-on experiment yourself in your bespoke listening arena and on your system, you wont know .