All Drivers work perfectly. These have the Original Drivers, Original 12 inch Alnico Magnet woofer with Cloth surrounds. Cloth surrounds never rot. I know it has the Alnico Magnet, because I went inside to clean the Potentiometers, and They have worked fine since I cleaned them 1 year ago. I leave the potentiometers at max and run my receiver flat. See pictures, these are in great shape for their age. The one grill frame needs repair and new fabric. The item “Acoustic Research AR3a speakers vintage speakers” is in sale since Tuesday, November 22, 2016. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Speakers”. The seller is “harry398″ and is located in Marlton, New Jersey. This item can be shipped to United States.