I have just past the 200 hours marks on my Edition 10(E10). I am glad that at this point of time, the sound of the E10 can be described as :
Extremely detailed mid range
The representation of instruments and vocals of the E10 are quite close to the actual instruments I hear at live classical and rock concerts. Vocals are excellent. You can easily hear the husky voice of Karen Carpenter, the high male tenor voice of Michael Jackson or the gravelly voice of Rod Steward. On better recordings, you can pick up the throat inflections of some singers. As mentioned in my earlier impressions, instruments such as guitars and violins sounded especially life-like. The E10 also performs well in instrumental and unplugged music.
Fast Speed and Dynamic
The E10 doesn't get congested when playing high speed music. All instruments are undistorted and clear. It seems to able handle speed better than the Edition 9s(E9). The dynamics of the E10 are very good too.
Seductive Bass
The bass can be comparable to the E9 but never overbearing or boomy. It is tight and have a very low extension. The bass never intrudes into the mids, therefore it remains clear, musical and transparent. I attend at least one live performance a month. The drums on rock albums as represented by the E10s are quite similar to the one I heard at a rock concert I attended last week except that you cannot feel the low rumble caused by the rock concert sound system. The E10 is definitely not a bass light headphone.
Clear and forward treble
The treble is sparkling and clear, thus resulting in good instrument separation. I think the harp music sounds excellent, better than any other headphone I heard before.
Wide and Deep Soundstage
The soundstage is expanding since the 60th hour of burn in. At present, it is wide and deep. Better than the E9 but maybe not as wide as a fully burnt-in AKG K701 yet. Since I am using the Meier stageDac, turning on the cross feed will result in a smaller but more unified soundstage. If I turn the cross feed off, the soundstage appears wider but it is not so unified and towards my left and right side.
Multi-layered Sound
The sound appears more 3D. Not 3D in the sense of the sound coming from all directions but 3D in the sense that the sound is more multi-layered and textured. For example, during the strumming of guitar, you can hear the guitar sound followed by the vibration of strings. You can also clearly detect the decay of a number of brass and woodwind instruments.
Sibilance
I have reported in my previous impressions that the sibilance is gone, but after further testing, I found that when played at high volume, certain recordings are still showing sibilance. Although at lower volumes, these are largely absent. I think the higher mids to lower treble needed more refinement. I will continue the burn-in for another 100 hours and hopefully this area can improve.
Conclusion
Looking at this thread, there are a lot of debate whether the E10 is worth its price. I have to admit that I bought the E10 on impulse without even trying the headphones out even though there is a demo set at the store. The transaction took less than 1/2 hour. I brought E10 home not knowing what it will turn out to be. I am glad that is turned out to be better than my E9. How much better you may ask? Not much better. The E10 at this point has about 5% to 10% more refinement than the E9. Is it reasonable to pay about double the price of the E9 for the 10% improvement in performance?
I suppose the benchmark is yourself. If you set the benchmark to be $1000 so be it. Get the best headphone you can get for $1000 and let no one else influence you otherwise. Each of us have different benchmarks and comparing benchmarks make nobody happy.
I suppose each one of us have their own reasons to take up this hobby. As long as your goals are met, I supposed you have achieved your aim. E10 has met most of my goals other than the small issue I mentioned above. I think those who have fine headphones such as the E8, HD 800, T1, or LCD2 may consider this point before upgrading. I am a firm believer that there is no perfect headphone.
Another point to reflect is that I believe the headphone will grow together with you. Spending time burning in your headphone and hearing it change in characteristics every hour is to me very interesting. For better or worse, the headphone will mature into something you can understand better. If it turns out good, it is keeper. If not, then move on to another. I think we concentrate too much on the final result but fail to enjoy the process. Enjoy your music, you will be happier.
Welcome Rob on board on the Edition 10 Club! I am glad that the Thais have got their Edition 10 and I sincerely hope that those in US will receive their E10 soon. Looking forward to Warp08 to come up with a shootout between the Sony R10 and Ultrasone Edition 10. Enjoy reading and a pleasant day ahead!