TGE,
But you say it sounded good with realistic dynamics and loudness in the studio, right?
So the recording would not seem to be the issue. Sounds like your amp clipped and blew the tweeter. Clipping is usually the case when a tweeter blows. Loud, dynamic passages are usually the culprit.
When I used to sell audio years ago, with vinyl as th emain source, many more tweeters were blown by 15 or 20 watt amps tha 80 or 120w/ch ones. Warped records in particular were problematic in that the low frequency noise created used up the power and left the actual music to clipp fairly easily. This is not an issue with digital and I believe fewer tweeters get fried these days in practice due to clipping with digital sources, even though clipping is still a common occurence and affects the sound quality otherwise..
Overdriving a speaker with too many clean watts without clipping can occur also and limit or distort the sound perhaps somewhat, but damage to the speaker is less common than when clipping occurs.
I'll try to check out the Metallica. The Metallica I do have (S&M, Metallica Black album) finally sounds about as good as it can sound these days since moving to the 500w/ch Icepower "monster" amp.