... ,Copper ,Aluminum ectType of Speaker Cables: Low Voltage (<80V)Material of insulator for Speaker Cables: PVC,Chemical Resistant,Moisture Resistant. ... Color of insulator for Speaker Cables:Transparent,White, Black, Red,Blue,Yellow,Purple,Clear,Red ... &Black ectNote:1.) Customized cables are acceptable, 2.) Bare copper or CCA or Tinned ...