I carefully wade into this discussion by disclaiming, up front, that I am not very technical when it comes to field of high end audio. However, I'm hooked. I feel like I know "good" sound when I hear it but more importantly I know what sounds "good" to me. I've been into audio my whole life and only in recent years have I had the opportunity to settle for fewer compromises in my system.
About a a year ago I had the opportunity to purchase a pair of Zellaton Concert speakers. I had heard these speakers set up at a friend's house and fell in love with their open, layered presentation of music. I'm not saying they're the best speakers on the planet, but for my ears and my budget they are pretty close.
But, I say that to say this: the patent for the Zellaton driver was filed in 1930! I assume that the design is fundamentally the same and I know that each driver is still painstakingly made by hand. While I'm sure that the technology involved with the cabinet design, crossovers, etc. has changed, fundamentally this may support the case for a slower advancement over the years.
http://www.audioarts.co/zellaton/pdf/patent.pdf
About a a year ago I had the opportunity to purchase a pair of Zellaton Concert speakers. I had heard these speakers set up at a friend's house and fell in love with their open, layered presentation of music. I'm not saying they're the best speakers on the planet, but for my ears and my budget they are pretty close.
But, I say that to say this: the patent for the Zellaton driver was filed in 1930! I assume that the design is fundamentally the same and I know that each driver is still painstakingly made by hand. While I'm sure that the technology involved with the cabinet design, crossovers, etc. has changed, fundamentally this may support the case for a slower advancement over the years.
http://www.audioarts.co/zellaton/pdf/patent.pdf