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Posts by Aero Dynamik

Can you please elaborate on "more details"? The reason I'm asking is that I can much more easily pick up details in the treble on my DN2000J (which isn't neutral) than I can on my ER4XR. I guess this must be because some of the DN2000J treble key points are indeed boosted, and it may well be on the expense of some details in the mid-range, but not to an obvious extent (not to me anyway). To be able to hear the same treble details with the ER4XR I need to raise the volume...
The ER4XR bass quantity is definitely and a lot less compared to the DN-2000J. With the right recording the DN-2000J bass is pretty awesome (although not eardrum neutral). As you may remember, the DN2000J bass (unlike the ER4 bass) didn't cause any kind of controversy in the DN2000J thread. To the contrary, everyone seemed to agree it was some of the best bass they had ever gotten from an IEM. On the right day with the right track I just love it However, today isn't one of...
Indeed, with the "right" SPL the bass that I get from my ER4XR is amazing. As a matter of fact, after directly comparing it with the bass of my other favorite IEM, the DUNU-DN2000J, I definitely prefer it (at least today and at least with the tracks that I've been listening to today). The "bass problem" has little to do with the ER4s themselves. It's a general problem with IEMs. They just can't deliver the kind of energy good speakers can (except for to the eardrums)....
Oh it's good, trust me! Unfortunately it won't last for very long, lol!
Congrats! I believe you're going to be one very happy ER4XR owner! 
Very interesting post and I believe I can tell exactly where you're coming from, thanks! As we all know, the answer is unfortunately no. My conviction is that IEMs will never be able to reproduce bass frequencies accurately no matter how flat the FR is. I'm not a sound scientist but my theory is that in real life bass (especially the lowest frequencies) is very much perceived by the inner ear from sound waves entering the body from other parts than the eardrums. I've been...
@mdiogofs I agree with EtyDave. First of all (as EtyDave points out) you need the low frequencies to be able to tell the difference. Secondly, you may or may not prefer a slightly elevated bass response depending on your personal preferences and your preferred SPL. Thirdly, low frequencies are more present than we usually tend to believe. Not all symphonic music utilizes tympanis, but most symphonic music utilizes double bass which can go as low as B0 (≈31 Hz), when five...
Very interesting! I was of course aware of the phenomenon but not aware that it had been scientifically mapped. So in short, SPL has a fundamental effect on how we perceive FR. That would explain why I intuitively prefer different volumes with different IEMs. It could definitely also help to explain why different people experience the same IEM with the same recording differently. For example, when the DN-2000J came out quite a few knowledgeable Head-Fi:ers - to my surprise...
[[SPOILER]] Thanks mark88888! I'm afraid not. As I mention in my post I sold it as I felt that it was underperforming in the lowest frequencies. Many others have expressed such concerns/objections over the years about the previous ER4 versions, and if I'm not misinformed that's why Etymotic finally decided to something about it; hence the ER4XR. Do note that in no way do I experience the XR as bass heavy but in fact still very, very accurate. I find the implementation of...
For those of you having a hard time to choose between the ER4SR and the ER4XR, here is why I ultimately decided to go with the ER4XR.   I have a history with the ER4PT and the reason to why I (at the end of the day) sold it was that I felt it wasn’t accurate; that it was depressed in the very lowest frequencies (< 40 Hz or so). Of course, from a clinical point of view the bass frequencies of the ER4PT weren’t depressed but that’s how I heard it.   I should mention that...
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