I've tried the other SOL REPUBLIC HP's and had someone recommend I try a set of the SR Ultra's. I was not disappointed. These work on the same platform as the others with the modularity and indestructible headbands but the key differences are not just looks, but they have a Titanium Driver that delivers amazing High's, Mid's and Lows. they are a true Audiofile listeners dream w/ the clarity of a $600 HP for a fraction of the cost. Most bang for buck w/ these ULTRA's!!