CK Moustache
100+ Head-Fier
Sure, but their mid-range overshadows the bass. It's there, but you need to tease it out with EQ to knock off the mid-range.
To my ears, the Etys' mids don't overshadow their lows - the tuning compensation for the lack of the natural open ear gain in IEMs on the ER-4S/SR/XR, ER3SE/XR and ER2SE/XR seems to match my personal HRTF very well, as I do not experience any of this when comparing my ER-4S or the ER4SR with real environmental noise/sound, speech etc, which is also the case when carefully using a sine generator or listening to white noise. In fact, to my ears, and also backed by various research studies (Killion, others, and as far as I know the most recent one by Hammershøi & Møller), this type of HRTF compensation sounds the most accurate to me, and in my earlier years when the IEM market was less crowded than it has become in the past decade or so, before finally "discovering" my ER-4SR, pretty much all other IEMs I had (including my UERM) lacked the last bit of realism in the mids (especially upper mids), with a somewhat too relaxed presence range compared to real life, which was also what I heard when listening to pure white noise.
Anyway, ymmv.