Thank you Phil... Pardon my ignorance but what are NOS speakers? Also, will the KM6500.2's work well with my current ZX200.4 amp? You mentioned the dome tweeters dangling... Do you mean the current ones mounted to the cans? They look like they are just plastic screwed onto the can... Unless I am misunderstanding (which I probably am) One more thing... Is it possible to get replacement grilles anywhere? the 4 on my tower dont match. 2 are silver 2 are more gold and one of the grilles in the bow is broken... Thanks so much for your help!