Dunlavy SC IV Speaker- Any Good???

I owned a pair of SC-IVs for almost five years before replacing them with Revel Ultima Studios.  At the time, the swap was driven mainly by a complete speaker “solution” offered by Revel, as I was converting a listening room into a home theater. Sonically, the performances of the two speakers were very close and both quite satisfying. 
 

I would take to heart the warning others have made about the likely age of the SC-IVs. Over time, certain mechanical and electrical aspects of a speaker can degrade, making their perfect repair a real nightmare.

I went to hear these locally over 20 years ago when I was out on a speaker search. 
They were properly set up in a nice size room and driven by either plinius, Levinson or Krell…one of those I can’t remember exactly. I do remember though that I was not impressed especially with the bass they produced for that size speaker.
I walked away and delisted them.  
At this point in 2022 they’re way too old. 
just my $0.02

Unless you are willing to drop multi thousands more on something new, that would be a heck of a get.  And if doesn't work, it wont be because the speakers.  You'd be able to sell then quickly.

I have owned the SC-3 signature collection since new.  They are as musically lucious and the drivers are in perfect condition. John Dunlavy and Geoff Poor did a near perfect job of making speakers

I would take to heart the warning others have made about the likely age of the SC-IVs. Over time, certain mechanical and electrical aspects of a speaker can degrade, making their perfect repair a real nightmare.

Is there any evidence that that this is a likely problem?

We could use the same logic with a car, and get a new one each week to avoid some issue.

I suspect that this is more factually probable:

I have owned the SC-3 signature collection since new.  They are as musically lucious and the drivers are in perfect condition. John Dunlavy and Geoff Poor did a near perfect job of making speakers