C-BR, 19Txxx (consecutive serial numbers) The one that I used as the center channel in my former theather system has the Crites CT125 tweeter, new capacitors and gasket. I still have the original tweeter, which is included. The other speaker in this pair has no changes, but hasn't been used for anything other than rear surround duty. They are not perfect cosmetically, but they are are in very nice shape, as you can tell from the pics. I am asking $900, barely over what I paid for them a few years ago. Both speakers are currently resting in their original boxes!. If buyer wants to arrange shipping, I will make them available, but I can not move them anywhere.