Just got my HA-FX101 in the mail (2am over here, they came earlier but I wasnt home haha)
Having lots of fun testing it out with the many different tips I have from other IEMs.
First impression: These things are wayyy brighter than I thought they'd be. The highs actually hurt at times.
This is probably due to my source, I'm using a RoCoo BA right now and I've noticed they have a brighter signature than standard consumer players.
The stock tips are horrible for my ears. The mediums are too big and the smalls are too small.
I ended up using some medium sized tips from my Panasonic RP-HJE120s. Those fit my ears much better, but I noticed the the hole of the tips are smaller than the ones included, so it might have a detrimental effect on SQ, but I couldnt tell.
I also tried some Comply S-400 foam tips I have left over from my old Brainwavz M2s. The exit hole on these tips are even smaller than the ones from my panasonic.
The foams definitely helped calm down the highs, but I also suspect that theyre hurting the bass a bit. I'm constantly switching between these and the panasonics.
Might go and buy a set of T-400s from Comply, designed for the XX series (the Comply site doesnt specify which XX IEM its for though :\)
For now, I'll let these burn in and see what happens.