Used Klipschorns, what to look for

Something is very wrong with your link. The suggested Volti crossover certainly shouldn't be costing anywhere close to 4500!? No freaking way...

A simple sublime acoustics analog active crossover  for around $600 will beat any passive crossover upgrade for the old klipsch, breathe magic into it. These things are tailor made for active crossovers, which is why the main klipsch engineer is introducing active crossovers for most of the new heritage klipsch models.

My nephew is running active crossovers with his old klipsch, it is quite jawdropping, the difference from active vs passive.

You can search some other forums on how to brace the cabinet further, prep it better.

Good luck

Thank you guys for the insight. deep_333, can you not see the pics from the link?

Thank again guys.  Sorry the link is not great.

This is all great advice as far as restoration and refurbishment, should I end up buying them.   I could really use some insight on what to look for before I decide to purchase though.   For example, checking out anything that is known to be physically worn out, etc.  Basically, anything I might discover that will add to the cost of me getting things right on my own in the future.

The asking price is in the 3k range which I believe is high for the speakers in this condition.  Even if they sound great, aesthetically I would rank these about a 6 out of 10.  

I've attached a link with a couple more pics.   Sorry if the link doesn't;t work well for you guys.  It works very well on my end so I'm not sure how to go about making it a better link for the public.   I'm admittedly fairly new to picture hosting.

https://postimg.cc/gallery/xfCv6Kw

Hope you bought the khorns!! and if you did u are a smart man, the rubber on the back is put on by the past owner, maybe because of vibration against the wall, but to really check them over put a tube amp on them and see how they sing. I have a pair and I love then when I play Boney James on mine, then every month I spray some DEOX on the connectors, 3.5k is not bad. out here in California you will pay 4.5k and more if they are rosewood, Check the woofer and see what model you have. Klipsch has used different woofers during production, from stephens to jensen to electro-voice to Eminence. now this is important you will need corners and the tighter they are against the wall the better your bass will be, dust will always be an issue with these beautiful speakers where your crossovers are. also find a rubber and damper that mid horn, because they will give you that metal ring, i found rubber pipe tape that kills that ringing sound, also protect them with a 1 amp fuse inline to protect your investment. enjoy them baby's