Neruda,
the music I listen mostly to is classical, orchestral. But jazz, hip-hop, rock, blues are part of my diet as well. I have to admit: there is hardly ever too much bass from the 770s in acoustical music. This is different at times with music that is primarily meant to sound good on MTV. If an engineer wants to make it sound good on average equipment, he might be tempted to mix and master his stuff with too much upper bass, I guess. But I'd say the very fact, that the 770s convey too much bass on certain recordings says something about their accuracy. If a headphone presents each and every recording with subjectively either enough or too little bass energy, it's not likely to be neutral in itself.
kwkarth,
I have an Earmax Pro amp. Glas. I know, you're more the sand type. But I don't feel this is the reason for our diferences in perception. I like the DT 250-80 a lot. It's a great headphone, I prefer it to each AKG and Senn I have ever listened to (don't know the K 1000 or the Orpheus, though). I feel the 250's midrange coloration is very slight and it doesn't bother me too much. I think it's relatively warm tonal balance (which is similar to that of the 770s) is very much convincing, and it has great sensitivity. But I perceive greater transparency with the 770s, not only in terms of soundstage (not a big surprise given the fact how close the 250's drivers are to one's ears), but in terms of harmonic structure as well. To me, there is greater musical transparency with the 770s. Orchestral sections are playing together, there is greater homogenousness and coherence. I think this might be more an effect of timing than of frequency response. If a transducer has problems in this regard, pipe organ concerts, for example, can get insufferable. I feel with the 770s, I am always free to follow different voices. It's musically transparent. But it is this very transparency, that makes it emotionally involving, to me.
kwkarth,
do you know the newer 250 Ohm version of the 770s or the 990s? I don't know the old 600 Ohm 770 Pros, but the old 990 Pros I have listened too were indeed "thick", just as Neruda or Headroom say. The new 250 Ohm drivers have been a big improvement for the 990s in terms of transparency and dynamics, and I think the same goes for the 770s. And there is a 250 Ohm version of the DT 250s as well, probably with similar improved drivers.
To sum it up: I think the DT 250-80s are very good, but the 250 Ohm 770 Pros are even better.
