Oh i agree with you for the L700. I can't speak english very well but, for me, the L700 sound like real life, and i was disappointed when I heard the 009 with good amp for the first time. Yes the 009 has more details, but this sense of detail is not realistic (like the Focal, Utopia), visually it just add contrast to the source, it's impressive and i understand why people can love it, but it's not realistic.
The l700 do nothing to the source, it's honest, sounds so ethereal and vivids. It's not the soundstage, i can hear this celestial sound when i use the L700 like a speakers not on my head. As speaker, the 009 still don't have this sound. It's not the frequency response, and i think the L700 lack of bass quantity is real. No, it's about the texture of sound, the L700 is unique to my ear, on my head this headphone disappear and let me alone with the music.
I'm happy, the best sound headphone to my ear is not so expensive. I think electrostatic elitist has to reconsider this high-end Lambda. They don't know, because is not officially the Stax flagship, but it is.