Has anyone tried the Geek Out IEM 100 with these? It seems to be intended for use with highly sensitive IEMs, but I'm having a hard time finding many opinions about that particular model (and especially the noise floor).
Coincidentally, I've got the Geek Out 100 IEM here for review (picked it up today) and am having a listening session now with the SE846 after I've just installed the drivers.
If your operating system is Windows, I highly advise against using the regular Windows volume mixer located in the bottom right. Instead, you should use the Light Harmonic Control Panel (which is installed automatically along the driver installation) for volume adjustment as it is
much more precise than the stock Windows one.
One thing that may be interesting: if you are very sensitive to hiss, the Geek Out IEM 100 probably isn't the best match for the SE846 (which is extremely hiss-revealing) if you are listening in a very quiet environment at very low volume levels most of the time. It is not even bothering at all (IEM 100's hiss level is
much lower than with the DX50 I used to own), though present in quiet passages and very low listening levels. Hiss level is about a bit less than double the amount of the first generation FiiO X3's hiss level and therefore still on the low side, but I'll need more time to evaluate it better.
But so far, my first impression of the Geek Out IEM 100 (in combination with the SE846, haven't tested with others yet) is very good, not to say awesome.