Sounds like a poorly set up system (was it even warmed up before you got there?) and a mismatch of components to me. Not an unusal set of circumstances in an audio store. Once you get your gear to a certain point, and properly set up, it is hard to hear an improvement in a store demo unless someone has gone to a lot of trouble to "do things right".
Your home system seems pretty competent, so in store rigs are going to have trouble measuring up. And, some of the gear in the setup may not be to your taste - example, if you like your Pass equipment, Levinson may not suit your ears.
And, as someone has already mentioned, your ears have already told you that something wasn't right. Try and see if you can arrange a home demo for the Revels, that will give you a better feel for the speakers. Or they simply might not be right for you. In that case, you can just continue to enjoy your Dunlavys (good speakers in their own right), or maybe check out the Wilson Sophia, and/or the Verity Parsifal Encore - also very good speakers in the same approximate price bracket.
Your home system seems pretty competent, so in store rigs are going to have trouble measuring up. And, some of the gear in the setup may not be to your taste - example, if you like your Pass equipment, Levinson may not suit your ears.
And, as someone has already mentioned, your ears have already told you that something wasn't right. Try and see if you can arrange a home demo for the Revels, that will give you a better feel for the speakers. Or they simply might not be right for you. In that case, you can just continue to enjoy your Dunlavys (good speakers in their own right), or maybe check out the Wilson Sophia, and/or the Verity Parsifal Encore - also very good speakers in the same approximate price bracket.