“These speakers were purchased from my local dealer new in May 2020. They are in perfect condition and are an amazing pair of speakers. I decided to upgrade them to the store's demo pair of 802's. The store personnel delivered and set them up originally, and they returned to box them back up for resale”.
This sounds to me like a guilty seller providing an "excuse" prior to the sale. Maybe I am just suspicious, but it paints a picture that is meant to preclude the complaint he knew would follow the sale.
I would file a complaint immediately and demand a refund with interest.