[Marcus Jang]

Quote:

 
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.

 
This is somewhat correct, as seen on the measurements done by GoldenEars, but I'm not too sure about treble being more forward. Maybe it's because of them being closer to the eardrum, raising the sound pressure level.
 
However I'm not too sure if one can insert them deeper at their reference plane, as it's form factor is made that way. I wonder if changing tips into longer-stemed ones, such as Westone Star Tips, would help.

 

[luisdent]

Quote:

 
This is somewhat correct, as seen on the measurements done by GoldenEars, but I'm not too sure about treble being more forward. Maybe it's because of them being closer to the eardrum, raising the sound pressure level.
 
However I'm not too sure if one can insert them deeper at their reference plane, as it's form factor is made that way. I wonder if changing tips into longer-stemed ones, such as Westone Star Tips, would help.

 
They can definitely be inserted deeper than one would think.  The casing starts to turn inward in your ear, but it isn't uncomfortable at all.  As for the forwardness, I don't really mean it sounds "treble forward".  But rather that small hump in the treble definitely makes a lot of instruments sound more separated and distinct.  More "in your face" if you will.  It's a different sounding earphone, but not far from the frequency response of the ety that's all.

 

[Marcus Jang]

Quote:

 
They can definitely be inserted deeper than one would think.  The casing starts to turn inward in your ear, but it isn't uncomfortable at all.  As for the forwardness, I don't really mean it sounds "treble forward".  But rather that small hump in the treble definitely makes a lot of instruments sound more separated and distinct.  More "in your face" if you will.  It's a different sounding earphone, but not far from the frequency response of the ety that's all.

 
I do know that, as I often insert them like that. However I still think that's not deep enough to reach "the reference plane" where measurements are done. I can say this because I have a pair of ER-4S and two other CIEMs as well as a PFE.
 
Still, I would definitely say PFE is a great IEM with their ergonomics and small form-factor, along with the sound of course.

 

[luisdent]

This is the typical fit one would expect:
 

 
This is how I wear them.  They are not any less comfortable and I still forget I'm even wearing them:
 

 
I'd say they are twice as deep as normal.  I believe from what I hear this lowers that treble hump even a slight bit more, making them even flatter in the treble.  So for me they sound extremely similar to the ety in frequency response.

 

[Marcus Jang]

Quote:

This is the typical fit one would expect:
 
*a big picture*
 
This is how I wear them.  They are not any less comfortable and I still forget I'm even wearing them:
 
*another big picture*
 
I'd say they are twice as deep as normal.  I believe from what I hear this lowers that treble hump even a slight bit more, making them even flatter in the treble.  So for me they sound extremely similar to the ety in frequency response.

 
That's what I mean. I don't know about your ear anatomy so I can't tell about your case, but in my case even wearing them like that doesn't make them reach the reference plane. Maybe my ear canal is extra longer, heh.
 
However, even without reaching the reference plane, deeper insertion usually helps with smoothing peaks coming from resonance. So you're right, that would make them more flatter.

 

[Inks]

I managed an insertion like the second pic from what I recall, heck mine was even deeper I think, it's still not at the reference plane [3mm off], the nozzle is just too short....

 

[luisdent]

In that case I can see why they would still be peaky, and thus you find the er4p flatter. For me the depth I reach flattens the peaks so the differences are very small and I find them very enjoyable. However, there is something simply phenomenal about the er4s when they are fit right. Haven't head anything better yet...

And keep in mind I'm comparing these to each other. I'd take the er4p over pretty much every other iem.

 

[luisdent]

This was the test I used:
http://www.klippel-listeningtest.de/lt/

 

[hotfever]

What im about to do with my er-4s is adding the cable adaptor(the one that give us option to switch to aftermarket cable by using westone socket)
My only worry is: will it reduce sound quality of the ety,because im pretty sure that the adaptor were not made out of very good material such as occ copper ...v...v
Beside ,adding those adaptor is like giving ur cable extra point-connecting...which is on theory isnt as good as the cables themself without any reconnect-points

 

[luisdent]

What im about to do with my er-4s is adding the cable adaptor(the one that give us option to switch to aftermarket cable by using westone socket)
My only worry is: will it reduce sound quality of the ety,because im pretty sure that the adaptor were not made out of very good material such as occ copper ...v...v
Beside ,adding those adaptor is like giving ur cable extra point-connecting...which is on theory isnt as good as the cables themself without any reconnect-points

I'd be most concerned about the cable changing the resistance at all.

 

[Inks]

That adapter is fine, it has resistors inside. No need for copper as the goal isn't to decrease impedance

 

[hotfever]

That adapter is fine, it has resistors inside. No need for copper as the goal isn't to decrease impedance

thankx for your explaination but i think u misunderstand my concern..
i was worrying about adding adaptor may decrease SQ because the material used in the adaptor may not be a good material for sound-traveling

 

[palmfish]

Your adapter wont affect sound quality. There are dozens and dozens of point connectors in your audio chain - one more wont change anything.

 

[markanini]

I found the ER4S thin until I moved the filters out in to the molds. Now I find it warm on some material.

 

[Inks]

Quote:

thankx for your explaination but i think u misunderstand my concern..
i was worrying about adding adaptor may decrease SQ because the material used in the adaptor may not be a good material for sound-traveling

No, you see you don't need a fancy material like copper as that is only used when the goal is to decrease impedance. The only thing that will make that adapter bad is if perhaps the soldering is done poorly, but the materials are fine. Sound traveling does not require silver or copper to sound good.