Originally Posted by ads1107
Thanks so much twister6.
The Im30 looks shorter but fatter, w40 looks longer but narrower. The w40 housing length was one reason I got rid of them, to me they were longer than my old um3x and there for gave me a poorer fit. Not massively uncomfortable but noticeable.
Are you able to compare comfort levels between IM30 and W40? Do you find one fits noticeably better than the other?
And, able to do a brief sound comparison? Particularly in the bass department.
Hands down, W40 is the MOST comfortable IEM I have in my collection. Their ergonomics is very similar to Shure SE-series, sort of like a rounded bean design. But fitment is purely subjective to anatomy of your ears :) IM03 shell size is on a borderline of comfort for me, where IM04 and IM70 will cross that threshold. On the other hand, my ear canal opening is large enough where I need to use only the largest eartips to get a perfect seal/fitment, and sometimes that adds to comfort level where others complains about nozzle/shell. Regarding W40, they are very smooth and detailed, but bass is not as aggressive/punchy and mids pushed back a bit. IM03 and IM50 have a very similar sound signature with a great enhanced bass quantity and quality of punchy mid-bass and nice warm sub-bass layer. What sets IM03 and IM50 apart is a stronger boomier bass on IM50 due to dynamic nature of drivers, while IM03 has a wider soundstage, more detailed sound, and a better layering/separation due to crossover partitioning of 3 BA drivers. But the gap is not that significant, in my opinion, and it's really hard to justify a price difference of $65 IM50 vs $350 IM03. That's why I refer to IM50 as one of the Gian Killers :) $500 W40 is fantastic, but it's geared more toward smooth laid back warn sound signature.