Interesting thread. The rough looking parts of the woofer cone also seem to be the area with the tightest radius. In my experience the tighter the radius the more likely you'll see imperfections when producing something. Likely this is cosmetic and only just the surface of the cone. As these drivers are hidden 100% of the time they probably allow for woofers with cosmetic (no change to function/measurements) imperfections to be used without issue.
I didn't read every reply but I did see at least one explanation from the manufacturer. I would agree that speaker cone shouldn't be flexing there and likely isn't.
I didn't read every reply but I did see at least one explanation from the manufacturer. I would agree that speaker cone shouldn't be flexing there and likely isn't.
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