Shahinian Obelisk vs VandersteenTreo

Bob,
Like I said I will follow Stingreen's advice and carefully inspect everything. I have no intention of sending the driver overseas and learning that it is in perfect working condition :-) JohnnyR suggested a very simple, but very effective way of checking driver's performance: taking it out and connecting it directly to speaker cable at very very low volume so as not to damage it.  This method will demonstrate the defect (IF it is defective) instantly. All effective things are oh so simple :-)
And kudos to JohnnyR for taking his time to help.  It was a pleasure. 

Well, it's the driver. Took it out completely, checked it, it's off center. 
The seller suggested to take the speakers back, contemplated his offer, decided I want to keep them. 
So next week the driver is going to California.
CJ pre is burning in with a new Tesla tube. 
Will probably look for a Golden Lion Genalex, as they suggested on a CJ owners forum.  The Vandies have a somewhat dark sound in my setup Ann's room, so the Golden Lion will probably make it brighter, closer to neutral.

Ann's room=and room.

As I suspected. If I understand your description of off center, you have a voice coil skewed in its magnetic gap. Good luck with your repair.
Cheers,
Tim

Yes, I suppose you are correct in your description.
 Thanks.  I will try to fix the problem locally, and if this fails, will send the driver in to RV.