Yes for me it does. Erlky‘s mid-bass on setting 2 is a bit bloated, while on 3 & 4 there’s not enough presence. With my music genres, I prefer to have great sub-bass compared to mid-bass and this is where IE 900‘s DD shines. Soundstage is also bigger on IE 900, while both midrange and treble are also great. Erlky probably has the edge on midrange, but not by much. Overall a very balanced, warm, full bodied and non-fatiguing presentation to my ears. I‘m probably lucky to have found the right tips from the get go as some people do struggle with the fit and this of course affect the sound. It does enough for me to let go of Erlky and replace it with 1266 TC (well it’s apples & oranges but I’m more of a headphone guy now
)