Ive only tried SR-009 lol, and it was with a LL and mytek 192 setup. Now i know the LL is not the best amp for them, so some issues i found must of been cause of that.
Anyways i was really surprised by how good the SR-009 are, not the extra transparency or detail that caught my attention, but the speed and the transients, just absolutely zero congestion, everything remains separated and fully resolved, it was something that no dynamic or planar can do. Only the Hd 800 out of zana deux or gsx mk2 come close, but its still not the same. The transients where the most impressive thing, the speed, the drivers can fully resolve every single sound in a recording.
Well now I need one.
Joking, I can't swing a SR-009. But I was considering trying out the 007.