Janeb:
I couldn't tell you why the driver failed. My knowledge base is not at that level. But I can say that that I run the speakers at what could be considered, at minimum, normal use -- -20db to -30db -- on a Denon AVR 3808CI, based upon the Denon display information. (I know folks with similar setups -- Vienna Acoustics/Denon -- who say that they run their Denons toward the 0db or -10db levels). Right now I'm listening to Miles Davis' "Nefertiti" at -30db. I can also say that when I called the dealer to report the issue he was not as confounded. He just apologized and said that it happens and ordered the new driver.
However, I did think of something that might give you perspective. Sometimes when I hear something in a different context, it helps me get perspective. The following may provide you additional perspective. Based upon your comments, it appears that you believe speaker drivers should have a 0% failure rate. As good as you seem to think drivers are, do you believe a 0% failure rate can be expected? Additionally, I would also wonder why Sumiko would have replacement drivers in inventory if they are never expected to fail.
Hope this helps. Thanks for your comments.
I couldn't tell you why the driver failed. My knowledge base is not at that level. But I can say that that I run the speakers at what could be considered, at minimum, normal use -- -20db to -30db -- on a Denon AVR 3808CI, based upon the Denon display information. (I know folks with similar setups -- Vienna Acoustics/Denon -- who say that they run their Denons toward the 0db or -10db levels). Right now I'm listening to Miles Davis' "Nefertiti" at -30db. I can also say that when I called the dealer to report the issue he was not as confounded. He just apologized and said that it happens and ordered the new driver.
However, I did think of something that might give you perspective. Sometimes when I hear something in a different context, it helps me get perspective. The following may provide you additional perspective. Based upon your comments, it appears that you believe speaker drivers should have a 0% failure rate. As good as you seem to think drivers are, do you believe a 0% failure rate can be expected? Additionally, I would also wonder why Sumiko would have replacement drivers in inventory if they are never expected to fail.
Hope this helps. Thanks for your comments.