I was at a Audio store and the guy there said that although Vintage speakers are nostalgic. They don't even come close to the sound that is produced with today's speakers. He basically said that with all of the 3D modeling and technology they can create speakers that produce the absolute best sound. I had another person say he didn't understand that because all you are doing is pushing air out of box. I am sure components and materials have improved over the years along along with technology. Anyone have any input on Today's speakers vs the Advents and Kloss and other vintage speakers of yesteryear?.