Totem Acoustic Speakers are made to last a lifetime. In addition they are designed to sound identical in any part of the world they are domiciled. They are absent of any wool or Acoustic filling that breaks down over time.
How long does it take a decent quality speaker to "wear out"?
After all, they do have moving parts and capacitors. . . .
(I suppose that "decent quality" s a relative term. FTR, I am running a pair of the older B&W 805s, and for all I know, they may not actually meet the criteria of "decent quality.")