I am the original owner and purchased new from my local Thiel authorized dealer. The cabinet is in pristine shape except for one missing sliver of veneer at the very bottom back right edge that must have been taken at the time of the original install. I never even noticed until years later when I was down on the ground running some new cable.
The sub is in great working order and no issues to report. It was previously used as part of a complete Thiel system, with the passive Thiel crossovers, but this sub is now the last remaining part of that system and only being used as an LFE. I do not have the Thiel Integrator or any Thiel crossovers available for sale. Also, the sub box it is pictured with is not part of the sale. Reason for selling: I'm forced to downsize, due to moving to a significantly smaller space.
I have no interest to ship this beast myself, so local pickup is encouraged, but will allow a buyer to arrange, pay and assume liability for shipping, if so desired. I would even consider meeting someone halfway, if within a 500 miles radius.
You can still find plenty of info on the Internet for this unit and the SmartSubs in general, but some basic specs: (2) 12" drivers, 167 lbs., 34"x16"x22.5".