The conductor and all its surrounding and wrappings are placed in a clear tube which is then filled with micro bearing steel and sealed at each end except for the required length for proper termination to a terminal lug. The size of the bearing matters because you can over damp the cable if it is run externally ..I know I can hear that..but taking the speaker apart several times to listen and compare bearing size over again that is a real drag but I bet their is a difference there also. I learned much from the video and now I wish I could go back in time because he raised a whole lot of ??s in my brain.
Tom
Tom

