KOAN. From 1:00 to 1:10 - sounds a lot like the Grado SR60 (which you already know is a headphone and not a fair comparison) in general. Bass slightly heavier on the Sony, a tiny bit of mud at the lowest end maybe, cant quite tell. Soundstage is a bit less wide as compared to the grado.
Compared to my PL50 - definetely better bass, much better bass actually. The PL50 sounds much more open, but thats because the bass is near non existent. The mids seem to be equal, only that the bass shadows them on the sony - which i believe is a nature of the track.