I do own and like stax. So, obviously, I may have a biased opinion. But I think when you use an expression like being on the analytical side means something negative like cold, uninspiring but detailed sound. If I would have to choose a headphone for such a soundprint is the AKG 240, but it maybe unfair as it is like this compared to HD650, but if you own and use exclusively AKG you may not characterise like this. For me stax is the natural, real life like sound. Period. Not cold, not warm, not slow not fast, but the less coloured possible sound. But HD 650 is coloured sound. I had and did like it for years. I did like better than the AKG 501 and 240, which I found cold etc. I knew that HD is erring on the warm side, but I only realised not only colored, but atrificial sounding after acquiring stax. It relates partly to different technology which allows different sound print. I have "only" sr-x 3. Lambda family gives similar style sound, but more expansive soundstage and a bit more musical sound. But even in this personal preference count, as I do think that for me the somewhat more dynamic and detailed sound of sr-x 3 compensates for the relative lack of soundstage and for certain perception of musicality due to somehow less transparent sound (but here difference in transparency is really small).
