Is it that hard to understand?
NT6 is analytical, while SE5 is organic (they are both close to neutral though, with NT6 being on the more accurate side). The instruments on NT6 are presented in a clear/forward way.
As Joe stated: It is much easier to hear the (instrument) detail from the NT-6 as its slices and dices presentation.
And organic sound will still allow you to hear the instrument, but it's either laid back, or very smooth (not as bright) so that you can focus on the overall sound presentation (every element in the song).
You can hear analytical signature in vocals too, but the instruments often take over very easily.
I think I should mention that the new JH13 FP is not analytical to my ears, it sits somewhere in between with a good combination of instrument detail and musicality. But the old JH16 IS analytical like the old JH13 with more clarity/brightness and speed.
Actually there is another category: neither analytical nor organic, but not neutral either.
E.g. JH roxanne. I am pretty sure you have hear everybody saying how warm, organic it is (people even compare it with LCD 3. smh lol). It's warm because of the its extremely rolled off upper treble, but the instruments are still presented in typical "JH" way, that's analytical, forward and direct (look at the HUGE peak at 9k). So this type of sound signature is definitely "special" IMO. Another example is H8P, but it does it better than roxanne to my ears. Hate it or love it
Hey Joe, you have no interest in any of the VE6 model? x1,x2 xc?