Sorry, I thought you had these issues with your GR8. Well, your pair is probably faulty then, because I don't hear these problems with my mine. It's true that e-Q7 has more treble than the GR8 - I think it's just better extended though, not really more emphasized. As for bass, I thought they were pretty similar. Are you amping your GR8s?
No, I don't think it's far behind, if at all. And from what I read GR8 needs to be amped to sound good. But even unamped, it sounded nice to my ears.
But what I prefer about the GR8 is the slightly more laid back feel that is much better for my trance tracks, as well as less graininess. Again, could be because mine have a channel imbalance.
GR8 frequency response:
e-Q7 frequency response:
The response of the e-Q7 does look more accurate overall with more extension. The GR8 does look like it has a little more bass, and the e-Q7 has a little peak where the GR8 has a dip in the upper mids. They both are down about 10 dB at 5K. The GR8 chart goes to 20K, where as the e-Q7 chart stops at 16K, so it is hard to tell, but the GR8 looks to be down 20 dB at about 14K while the e-Q7 is at around 16K when it is down 20 dB. So yes, the treble looks more extended in the e-Q7, and the GR8 looks warmer with more bass. That is what my ears seem to be telling me.
And what is not on the chart is my preference for the GR8 with trance music, how the GR8 sounds smoother to me, and how I think the GR8 has a little wider sound stage.