On the HE 150PROs...
Just thought I would throw this out there for anyone who likes a slight dark signature with good extension up top and nice deep extension down low. I switch around between my buds every so often. Between all of the budget offerings I have DIY Pk1 150ohm, Seahf 64, DIY Graphenes, DIY 300ohms, MX365, PT15, Faael 64 (Snow lotus?), etc... the HE150PROs are just.... awesome! They have had 100s of hours of use now and I find them to be spacious, holographic, and full-can-like. While not like my HD6XX there is such a difference between these and my other buds... I thought maybe it was just my imagination but after specifically A/Bing them with my other buds (again) they are definitely... amazing! I think the big difference right now is that they do match my preferred sound sig almost perfectly (though this may be affected by the recording as I do find very often they are exactly what I want) when compared to my buds and work pretty much with everything I listen to, and they are indeed holographic (3D). Though maybe not as wide as some other buds, the depth is quite palpable to my ears in that the sound is in front of me, unlike many other buds I've tried where the sound is around/behind me. Any kind of live recording with crowd noise is fantastic....
Full-range ability (hi to low) and presentation (width and depth)... can-like and very comfortable.
Love them... hope my incoming K's Samsara will take this to a new level....!!