The tweeters on one of my Mirage FRx-Nine fronts blew last week. I got it fixed and all but am a little puzzled as to why it blew. The amp I use is a Marantz SR5000 which is only 70 watts per channel, and I believe the speakers should be able to take up to 200 each. Also, I don't go near the max volume on my amp in any circumstances. Any thoughts or ideas as to what could have caused this would be helpful. I just hope that the other one won't blow in the future (or the same one again). Before these we owned a really old pair of SoundDynamics (for about 15 years) and never blew a tweeter or anything.