FYI - Polk SDA 2B's in Charlotte North Carolina in Great Shape!
I like his description:
Yes, these are the legendary Polk Audio SDA 2B speakers. I am the original owner of these audiophile quality speakers. Have listened to many speakers over the years and never heard any that would match the sound of these, at least at a cost of less than $5000. The soundstage of the speaker is amazing thanks in part to the patented SDA technology that cancels “interaural crosstalk distortion”. The technical accuracy and dynamics of the speaker is amazing. These are not the Polks that you would see at Best Buy, these came from a high end audiophile store. They are in acoustically excellent condition and cosmetically very good. Also include manuals and original boxes. Local pick-up only - Charlotte North Carolina. Thanks for looking!