Just an update on my purchase. I ended up getting the DT 1770 a few days ago. I will admit, it is a good headphone, but to me, it is not good enough to keep. The Amiron is just flat out better. The DT 1770 has a resonance within the bass response that just can't be removed with EQ. The treble is also somewhat harsh and fatiguing, but this can be correct with EQ. The issue with the treble though is that if you do EQ it down far enough, it removes the brightness, but then you also lose detail in the upper frequencies. The mids are slightly recessed from 1.25-2kHz, followed by an even bigger dip at 2-4kHz. I ended up putting this EQ on the headphone.
Pre-Amplifying: - 2
31.5Hz: - 1
40Hz: - 1
50Hz: - 1
63Hz: - 1
80Hz: - 1
100Hz: - 1.5
125Hz: - 1.5
160Hz: - 1.5
200Hz: + 0.5
250Hz: + 1
315Hz: + 0.5
1.25kHz: + 0.5
1.6kHz: + 0.5
2kHz: + 0.5
2.5kHz: + 0.5
3.15kHz: + 1
4kHz: + 1
6.3kHz: - 2
8kHz: - 2
10kHz: - 1
I have to say, that with this EQ, it sounds far more balanced. The difference in sound quality is drastic. However, it still does not sound completely correct to me, and the resonance is still there. As expected, even though the DT 1770 is using the same driver as the Amiron Home, it sounds quite different. I have decided to return the DT 1770, and am now searching for something else. I am one of those guys who just likes to have two headphones. One open back, and one closed back. I could just get a DT 1990 instead, but then I am getting another headphone from this family, and it will also be another open back. The problem is that excellent closed back options are limited at this price level.