Laingn2,
What Alan suggested is a very effective way to determine if what your hearing is in the speakers or in the audio track.
I have not swapped my tweeters yet (it was my son's bday and we had company all weekend), however I did manage a quick listen on my W's and with my in-ear head phones.
I learned there is definitely distortion in the 'Some Devil' track using the DolbyHD audio track on the Blu-Ray disc. My guess is that it's purposeful distortion that Dave is using on his guitar and that it's not added in the studio mastering. However it still sounds different (more distorted) on my W's vs. the headphones. I am still trying to track this down.
Back to your question - listen to the same source through your speakers and with good headphones as Alan said. Just watch that your receiver doesn't try to automatically switch modes when head phones get plugged in to try and keep it as fair an A/B comparison as possible. Mine (a Pioneer SC-05) automatically downmixed the DolbyHD to stereo for me when the headphones were plugged in. To make sure what I was hearing was real I also checked the stereo mix on the BR disc with my AVR in stereo mode so it would not switch modes when the headphones were plugged in. Good luck!
