About digital coax: get your hands on a piece of Vivanco KX-710 (tv-coax)and a pair of decent rca-plugs. Terminate and have fun
About burn-in: static charges in the conductor(s) as well as the insulation might be involved, and some pure vodoo on top of this
About burn-in: static charges in the conductor(s) as well as the insulation might be involved, and some pure vodoo on top of this