Late to the party but definitely glad I'm here!
I posted here about a year ago and ended up going with the SE846 which I still have. Love those IEM's but I'm having constant issues with comfort for extended periods. I'm still listening to metal and music that can easily get too thick very quickly.
That said I'm enjoying these. I've been reading back in this thread and it appears I have an older revision with the W60's stamped on the side. Hopefully that's the only difference. The sound is great. Definitely laid back to the SE846 but the W60's have a grander sound. More filling/feeling.
I'd have to say that out of the box the W60 sounds better than the SE846 did to me. Without EQ I prefer the W60. The SE846 still need to add some crispness up top because I always felt they were rolled off even with the Blue mod tip.
I'll keep rambling on and on if I don't stop but I'm enjoying them.
Oh and the
tips are wide mouthed tips like what used to come with older style IEM's. I use old Westone foam inserts and a straw (yeah..) to help give it a better grip and I use O-Rings as spacers because they need to go just a mm deeper for the best seal. Of any tip I've ever used these are the most open and widest soundstage. It does tame down the sibilance that I'm sensitive to so they aren't as bright but they are more airy... Bass improves big time as well. Sub bass mostly.
I've got these on every IEM I own and can't use anything else. I get the best isolation and sound out of these vs anything else. I'm tempted to try some custom tips for universals but idk..
EDIT: One thing I've come to realize listening to these W60's is that even if I would have grabbed these early on I wouldn't have appreciated these as much. Now that my appreciation of audio sound and not just strict appeal, I find that the subtle nuances stand out more and I listen for them moreso than before. The SE846 is more of a fun IEM and appeals to more compared to the W60 which is less popping but has more layers to the sound which with a certain level of understanding and appreciation for it could mean a better sound... I just got them today so I'm probably just still gushing over them but I still love the SE846 don't get me wrong.