Originally Posted by Inks
I've owned then twice. I would question the test you took. I do a simple sine wave test and its apparent, even with a sax solo, the midrange sounds simply odd (with critical listening). Even ADDIEMs that graph with less distortion have audible distortion.
PFEs have a nasty 8k and slightly subdued 10k, much peakier iem than the ER4s IME. Phonak made a huge mistake making the nozzle so short, prevents the deep insertion required
Depth is the problem. You need to use the foam tips and insert them deeply. Just like the ety they can be easily inserted much deeper than you would think. This cuts the treble peak down more than half and I don't hear any subdued treble at all nor peakiness. I find the treble boost they have to be slight. With the silicon they are too peaky, but I don't use those. I'd say silicon = peaky, foam = less peaky, foam inserted deeply = no peakiness, but just a slightly more forward treble.
Take a look at these graphs.
The silicon tips indeed have a peak around 8-9khz and 16-17khz
The foam eliminates the high peak completely and cuts the 8-9khz peak in half making it less of a peak and more of a slight hump. This is what attributes to the slightly more forward treble and distinctness.
Now the er4p is more smooth in its response, but to me the cut at 7-8khz or so is much more noticeable as being muffled. I even find it more muffled than the graph seems to make it look. I would rather have a bit more treble then less personally. Plus the pfe is a much more level low end in the sub area. In reality I don't hear much difference in the bass with a deep ety fit. but the pfe112 does has a tad more sub. I find the etys tighter sounding in the bass a bit though. Just a tad.
Now compare that to something more expensive like the westone 4r and look how similar the pfe and etys really are. The 4r is boosted so much in both treble and mid bass. I still didn't find them as "v" shaped as the look on the graph, but reducing those areas to a flat line using eq did in fact result in an almost perfect ety like sound.
Needless to say. er4p smooth and accurate but sightly muffled. pfe112 better bass and smooth all the way up to the treble where it is only slightly more erratic than the er4p but brighter rather than muffled. However, pfe trumps the ety in comfort a million times over for me. I abuse my ears every time i use the etys. It's worth it. haha. But I'd prefer a more comfortable fit like the pfe 112. They dissaper in my ears, even really deeply fit and I forget I'm wearing them. The etys get more uncomfortable the longer I wear them.
So, long story short, the differences are not that great, but I prefer the pfe over the er4p personally. I would ask what test you use to compare the distortion of the pfe to the ety? A sine wave is fine, but that doesn't tell you much about music passages, as very few songs are solid sine waves. Second, unless it is a properly setup test, I can't take anyone's word for them "hearing" something unless it seems very likely. Can you send me the file for me to hear with mine? I'm not saying you don't hear it, but I'd like it proven before I believe it 100%. I've done a lot of testing, and I can say the ety are more "smooth", but listening to what distortion is, I can never hear any at any level with the pfe. Also, I'll post a link to the test I did when I find it in a minute...
Edited by luisdent - 5/13/13 at 6:08pm