(Just my 4 a.m. thoughts/semi rant on these, feel free to ignore this post )
Well I got my S4i a little over a week ago, and since then I've been burning them in with white+pink noise and my regular playlist. I probably have at least 100+ hours of burn in, and these are my thoughts:
With the regular oval tips, I can get a pretty solid seal, not the best, but a level that I'm certainly satisfied with... And with these tips, I get really nice bass, but also some very slight sibilance, but that isn't an issue really... The issue is the lacking vocal clarity I'm experiencing. However, with the small double flange tips, I get great clarity, but much less bass. These small double flange tips don't give me a very good seal though, so that could explain some of the lacking bass. I really wish they didn't leave out the larger double flange tips. I'm really interested in them, and I think they will be the best option for me, but not too interested in shelling out an additional $14, mainly because I just feel they should have been included initially...
Then there's the cord issues... It's honestly not bad, but I just hate how I have multiple sub $40 IEMs with MUCH nicer cords, but on the plus I don't have any microphonic problems...
And then, there's the poor quality microphone in this S4i... Worse than Apple stock buds and the $30 Jbuds J3M mic.... Pretty disappointing, but at least the Apple controls work nicely on my iPhone 3GS...
Also not a fan of the cheap pouch, I think I would prefer the tin from the non-mic version...
Overall, I'm a bit on the fence about keeping these. I probably will keep them, but I need to try the large double flange tips first... I tried some foams and triple flange from some Ety 6i, but didn't like them. I paid the full $100 for these S4i, so that's somewhat affecting my feelings for them. If I paid maybe $70, I would be much happier...