Sagging Voice Coils?

Heard the same tall tale but have never seen it nor have it ever been an issue, so I would not worry about it.

Happy Listening

Peter

My Klipsch Cornwalls, with heavy 15" woofers, were made in 1977. That would be 34 years ago.

Shockingly, the voice coils are not rubbing, nor do they need a woofer bra, though some enterprising audio company may take this as a que to begin marketing one.

Many of my friends own even older speakers, some from the 1940s and some with heavier cones than the 15" Klipsch, and interestingly, none seem to be sagging.

File under "urban legends" or "audiophiles have too much time on their hands in the summer."

There were and maybe still are speakers that have a coated surround that is usually made out of cloth. This was done a lot in the '60s to '70s and maybe before or after that time period. If you see some old woofers from around then, that has a liquid looking coating on the surround, it usually sags to the bottom. Those are probably what they are referring to. The owners of those usually do rotate them them a half a turn to put the heavy part at the top, and eventually the liquid will sag down again. It's sort of a super thick honey looking compound. This is done on some accordion surround edges of all paper/wood pulp cones to help keep them flexible and to help prevent cracking or tearing from all the movement they do.