What is the average life span of a decent speaker? I know many of you have either restored or at least repaired the surrounds of a speaker. I'm just wondering when in point do speakers require that sort of attention.
Thanks.
Edit: Just to add a few points to the discussion, I've had a pair of Bose 501 IV that still work to this day. I believe I bought these in the 90's, but don't quote me on that. They sounded just fine last time I used them. They're in my closet residing right now.
By the way, I hope I can stop the Bose bashing before it starts. I know their current stuff is controversial, but these pair of speakers sound pretty decent.