Am only guessing, but the orientation of the strands of wiring within the sheath on each successive generation likely has more to do with the difference in sound than a change in the wire. Have never seen nor heard WW advertise any difference in the the quality (i.e. more silver content) of the wire. I've got both Silver 7 & 8 and the major difference for me is the 8 being more pliable. Can't compare head-to-head as the 8's are XLR and the 7's are RCA.
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Glenn...
Canton Reference 9 Clearaudio SM Pro Focal Bathys JLA 10" Dominion Kuzma Stabi S w/MC & MM Magnepan 1,7i McIntosh MA8950 & MR88 Oppo 203 Roon Nucleus Rose Hifi RS150B Shunyata Gemini-4 Sony ST-A6B, TA-F6B, ST-J75 & PS-X75 Sorane SA1.2 & TA-1L Stillpoints LP1v2 WW Pt, Au & Ag
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