Michael: I did a little bit of a retraction a few posts up. I have pretty much come to the conclusion that it is just badly mastered metal CDs. I filled up the changer with Floyd last weekend and sat back and relaxed. Put in some Zeppelin, Skynyrd, and The Doors and they all sounded sweet. Even playing a few of the music channels on DirecTv sound pretty good as well. Like I said in the previous post I'll just save the heavy stuff for the car.