Oh, but I do know how old equipment sounds and measures. And the new version will sound better because of modern crossover design software, improvements in materials, and better capacitors, inductors, and resistors that are available today that were not available 50 to 70 years ago. I grew up with speakers that ALL SOUNDED DIFFERENT because they didn't have crossover design software... they "tuned" crossovers by ear... and nobody was as good at that as software for optimizing crossovers. I've lived through the decades of speakers that are now 50-70 years old. I know exactly what they sounded like when they were new. So stop defending old equipment inappropriately and get real. 50+ year old paper cones are not as good as new paper cones... PERIOD. And pressed paper is not even close to being a great material for speaker cones. Especially when the crossovers have 50+ year old devices still installed. I am using loudspeakers manufactured in 1992. They have received new crossovers when the design was updated. They have received new tweeters 2 times, a new midrange driver 1 time, and new woofers 1 time... all in the name of keeping these speakers performing as well as possible. Each change made the speaker sound better because the manufacturer sweated the details, using better materials, better driver design, and improved crossover design. The elevation in performance of these speakers has been stunning and they were already among the top performers in their price range when they were new. To be fair, the manufacturer prompted me about when to do updates that were significant and they would specifically tell me to wait if there was nothing that made significant improvements available. And to save money, I installed the updated parts myself to avoid shipping 100 pound speakers repeatedly. People who over-romanticize the merits of older speakers need to get a grip. In the "old days" they knew NOTHING SPECIAL about making speakers. And making all speakers relatively neutral sounding (as you get today) was impossible due to the vagaries of speaker design that have been improved significantly with computer design software. Speakers used to sound like you were cupping your hands over your mouth, or pinching your nose, or had super-zingy sibilants... all things that computer design software has banished from speaker design. 50-70 years ago, the entire field of available speakers might get a "5" or "6" for accurate sound quality. Since computer design software has assisted with design of drivers, crossovers, and enclosures, the speaker industry is performing at about an "8.5" level because so many sound quality defects have been eliminated by using computer design solutions. Yes, the best speaker companies still perform endless hours of listening studies to confirm everything is working properly together.