I still can't figure if my tweeters are blown on my new speakers or not. Sometimes in some songs they will put out a bad buzz/crackle type noise then I will put on a different CD and they sound good. So I was wondering if someone had a high bitrate MP3 they could send me that maybe would have frequencies that would make my tweeter sound bad if it was blown? Or should I dig and find my old bass mekankik CD that has a 20khz-20hz sine sweep?