Finally getting round to trying these.
Going to do a proper basshead assessment later after doing my own EQ, but first thing I notice is, yeah these are going to need more power than normal IEMs.
First impressions without EQ:
Midbass is nice and strong, treble is present, but it never gets too much, even on treble heavy tracks, it's perfectly controlled (as in, just before it's painful, it stops).
Sub bass is pleasantly present too.
Mids are close enough (intimacy wise - better than my Legacy 9s and probably around the same place as my Mangird Teas) which is where I wanted them.
Resolution is good, but it's only really on display when you give it power - I already know these are capable of more >=)
I'm currently using it single ended on my Qudelix 5K and I'm on 1 bar from max, whereas usually, even with EQ, I don't need to go much past half. Ordering a balanced cable for it ASAP, as it stands there's probably not enough headroom to do silly basshead things yet, so just going to enjoy it without anything crazy.
Somewhat tempted to plug it into the iFi iDSD Micro BL using IEM match and get experimenting with Equaliser APO, we'll see.
Using it with Spinfit CP100 M tips and my usual Kinboofi 16 core silver plated cable.
Signature is getting more pleasing as I go - good recommendation so far.