The W3 seems to have loads of bass from what i have read, i would not say this does, just very capable bass that can really extend and also is boosted but not too far. As esmboss said he still really has to boost it (he must be a major bass head). But i will say that this is a very nice sounding CIEM!
Yes it does, the XB really did not work for me. I mean this beautiful twin driver was covered in too much bass. Too met my preference perfectly this would need just a bit more mid but this is me really nitpicking and i thoroughly enjoy it. For what it is i may well take it on holiday with me on Tuesday!
This reminds me of a monitor sound like Westone UM2 and a but like my ACS T2 but this has a smooth top end and the ACS is very in your face and sibilant in the highs. I would say this also a slightly warmer GR07 with less sub-bass but similar mid bass and the treble toned down. Similar mid presentation though. If you though the GR07 had to much treble quantity this is smoother there but also detailed. I will compare with some more twin BAs and similar priced IEMs when i know these more.