Somewhere I read that the pinnacle of Hifi audio reproduction exists not in speakers and standard high end audio, but in high end headphone systems. Comming from high end audio and selling it for a living, this sparked my interest. If what I was hearing wasn't the best, than what would better...

Hi, I just want to hear from some owners of either of the above Sennheisers on their thoughts or listening impressions. I have the AKG 702's for my super detailed set of phones, but I'm looking for a good upgrade to my HD555's to have that nice laidback Sennheiser flavor for variety, but...