Bifwynne 6-4-2016 5:47pm EDTHi Bruce,
Al, ... how much stock do you place on some of the high-tech materials used in better speakers such as neodymium magnets, lightweight and stiff cone materials (e.g., beryllium domes, graphene, and so forth).
Frankly, I never pay much if any attention to such things. As I and others have said here many times in the past, what usually matters most is how well a chosen design approach is implemented, and not which approach is chosen.
And when it comes to speakers that applies doubly in my case, as I'm more knowledgeable about electronics than about speakers.
Best regards,
-- Al