Buying portable or in-ear headphones? Seeking guidance? DON'T START A NEW THREAD. Ask for advice... - Page 103  

(Apologies for the cross-post from the UE 900 appreciation thread. I posted there first before discovering this thread even existed. This appears to be a better place for the post)

Hey everyone - first post. Thanks ahead of time for providing your expertise - it's appreciated!

About 11 years ago, I bought my first and only IEMs, the venerable Etymotic ER-4Ps. They've served me extremely well over the years and I really love how they sound. That said, I must admit that I haven't heard any other "good" IEMs. But don't mistake me for an audio newbie - I'm a 2 channel audiophile and am well-versed in describing what I like and don't like about what I'm listening to. I've just not had a ton of cause to invest in IEMs.

I have the luxury of working from home. I used to listen to my KRK Rokit 5's (with a Triad Speakerworks Inline silver sub) while working. It's no candle to my 2 channel system, but good enough for non-critical listening. But lately, I've not been able to really use those. I have a 5 month-old who is at home with my wife and his room shares a wall with my office. So I can't really listen to my monitors and have been heavily relying on my Ety's, which are driven directly by a Revolution 5.1 sound card on my computer (and my iPhone 5 when I'm out and about).

I'm in a good financial situation and can afford to spend some money on some great IEMs now, so I'm looking to add another pair:

• I love the ER-4P's noise isolation. Just unbelievable. But I don't need isolation quite this good -- enough to not hear my crying baby next door would be sufficient.
• I generally wear my Ety's down and not up, but I think I could adjust to wearing up, if necessary. I use the clip to avoid microphonics, which is a good-enough solution for me since I'm sitting at my desk. I learned early-only, however, that I can't run in these things - the microphonics annoyed the snot out of me.
• I must have a microphone. I use them often enough with the iPhone 5 that pulling them out isn't an option, especially since there are several great IEM's with microphones.
• The triple flanged tips on the Ety's create a fantastic seal for me. I can get them in easily, but have to remove them carefully so as not to hurt myself. I probably have a pretty easy ear to fit.
• I love the neutrality and detail of the ER-4P's. _love_ it. That said, my listening tastes have expanded over the years from standard rock/pop/classical to a ton of EDM. I've always thought that the bass in the ER-4Ps was "good enough" and accurate, but I'm pretty sure no one would mistake them for having visceral impact or extended, full bass. I suspect my brain fools me into hearing a harmonic of the fundamental that makes it sound fuller than it is, regardless. It's been adequate for everything but EDM, when I really wish I could unplug and listen to my KRK/sub combo.
• If I could get the neutrality of the Ety's and add some punch and extension to the bottom end, that's what I would do. I realize one option would be for me to get an external amp, but I really would also like a microphone. Plus I have money burning a hole in my pocket.
• I don't mind a slight v-shape to the sound for EDM. When iTunes was my preferred player, I used to EQ it that way for EDM, so if the headphones added that shape (subtly!) for me, I'd be ok with it.
• For IEMs, I couldn't care less about soundstage. I have a 2 channel system for that sort of listening.

...all of which leads me to the UE 900's. Based on what I've described, are they the best thing for me to try first? If not, what would you recommend? ~$400 price range would be good. For example, I don't think I could stretch to the PFE232's.

Thanks!