For me SE846 lacks rumble bass with the 1A.DMP-Z1 1.02 sounds awesome, right? It has a huge soundstage with MDR-Z7M2, and Shure SE846 sounds better in terms of bass and highs, plus the soundstage.
I still get amazed sometimes when listening.
Tried custom firmwares but sucks anyway.
With my old Zx1 the SE846 works fine.
SE is not a sparkle iem, mids are extremely nice, bass is for a BA very good but not for 1A.
I ordered a Sony xba-Z5 and they blew the SE846 completely away, all the reviews with the Z5 are spot on.
Very deep and hard hitting bass with a lot of detail and power.
Mids very neutral studio sound.
Highs not harsh but very nice sparkle.
Very big soundstage.
Separation amazing.
On balanced 3D.
J 3.02 stock.