As a newbie here, I haven't figured out how to quote others' messages yet.
I ordered online on January 7th from Amazon.com and got it shipped to my Springfield IL home by JR on the 12th.
For the Butterfly concerto, my impression was that Xuewei and Muhai Tang ranked among the top followed by Sheng Zhongguo and Li Delun with China Phil.
The sound signatures are VERY different between GS1000 and AHD7000. The GS 1000 is the first can around $1000 I bought and I was very impressed at the time, as it sounded more spacious and deep than anything I experienced before, say Shure SE530, which I considered the best in-ear piece a year ago.
The more I compared the GS1000 to ATH 5000W, HD 650, and Ultrasone 9E, the more I find it to be lacking focus and refinement. It sounded expansive, but like an impressionist painting with more coased grains in sound details, similar to a listening expericen at Tanglewood or at an outdoor concert venue under a white tent beachside.
The AHD7000 sound signature is more fine grained, full-bodied, yet broad, deep, and sophisticated, accurate and balanced in both structure and details. Great for Mahler and Bruckner (my staples), as well as for operas and vocalists.