I think the LA7000 are very musical, involving and enjoyable like my custom IEM; but all of the custom IEM are faster/more detailed, more transparent/open sounding, and isolate better. The LA7000 and custom IEM are all better than a stock or modded D2000/D5000.
I don't want to ruin my 3-way customs review, but I'll say a little something here. The UE11Pro sound signature is similar to an unmodded D7000 but with better speed, detail, openness and extended treble. The JH13Pro sound signature is more similar to the LA7000 in tonal balance, but also faster and more detailed and open, with better bass and mids than the LA7000. And the ES3X are more like an HD800 in tonal balance, detail and speed but seem a little smoother in the highs. These three IEM have a fantastic soundstage but they place the listener at different distances from the performance and have varying degrees of headstage vs soundstage - it's hard to compare those to a full size headphone where the HD800 has the best soundstage, followed by the R10 and then the LA7000.
Although I never had experience with any high-end headhphones, I am hoping to hear some of those mentioned headphones, including JH13Pro demo at upcoming local meet. Your reviews and my experience at the meet will definitely help me choosing my next headphone/IEM (although I almost made up my mind at this point). Anyway, thanks for your response!