So, expecting to enter transcendental ascendance into the heavens of classical music, where instruments are not longer played by little puppets on the side of my head and somewhere in between, but in a holographic image in front of me, where all symphony orchestra instruments can be clearly identified each and individually instead of being blurred into blobs of "sound", but also the actual smell of a concerthall would pop into memory after pressing play, I connected the freshly arrived E12DIY today to my X5, with the standard installed AD8620 and BUF634. Did some ABing, and found a slightly better imaging, but violins a bit on the harsh side. A bit more dynamic.
Difficult to choose between high and low gain, finally continued on low gain with my TDK BA200, soon, (well, 6 weeks or so) to be replaced with UM Miracles.
Then, after reading all pages in the relevant threads, the LME49600 and AD8620 seemed the right combination, (knowing I will need to get muses eventually and do a careful logo study.)
This combination sounds better to me, violins less harsh with more detail, a nicer total image, but needs the high gain.
Now, is it worth it to add the E12DIY to the X5? The X5 on its own does a good job, but the E12DIY does add something.
Still have to try my Grado 325, but until now the TDK BA200 has been my favorite over the Grado and Sony XBA 40. But I have high hopes for a Miracle.
So, the E12DIY stays, and the HS6 will be used.
Now get me some Muses, I guess.