By the way, I ABSOLUTELY agree about Rush Moving Pictures comment. I have not heard Tom Sawyer sound so good. The drums in Tom Sawyer through my K550s sound as good as anything I've heard from any headphones. In fact, I think earlier on this thread I mentioned Tom Sawyer through the K550s. Based on your comments, it sounds like you are having almost the exact same experience as I. Seems like you and I have very similar hearing.
That brings back some good memories - I think this was the song that inspired me to pick up the bass guitar. Geddy's voice is amazing (back then).