Used M.Logans-What to look for?


Can someone advise me in what to look for when purchasing
a used pair of Martin Logan speakers? Thanks in advance for your most appreciated responses.
128x12867chevellesslover
I already know I'm a STAT guy. I have auditioned the ML's
for the first time a couple of weeks ago and fell in love
with their most life like sound. But I have read a few ads
where the seller admits that in some areas on the panel of their used ML's, the sound is much lower than other areas on the panel of the same speaker just to be honest in their
full disclosure and also another admiting that their speakes had new panels put on.
This obviously made me wonder if there is something I could
look for or listen for in order I don't come home with something I end up having to repair or replace. By the way, why would anyone need to change the panels of their ML's? Is this something that needs to be done when they get old and start fading in the sound in some areas on the panels?
From what I heard panels lifespan is only 8 to 9
years,after that you will change the panel.Mine
are quest,it will cost me $700 including shipping.
SO LOOK FOR AGE.Thanks
Just picked up a used but mint 99 model SL3's a couple of days ago. Thanks to you I've learned a few things about these speakers.