[froxmor]

I really like the ES18 but I'm not happy with its highs, probably due to this: http://www.head-fi.org/t/598627/review-soundmagic-es18-measured
 
I'm looking for a list of IEMs that have as flat a db-freq curve as possible, both cheap and expensive.

 

[Listen2]

I like the Etymotic ER4P for that.

 

[froxmor]

  I like the Etymotic ER4P for that.

Are they regarded as the best "analytical" IEMs?

 

[csmx123]

hifiman RE400.

 

[Xanius]

Etymotic er4s has the flattest eq for sound I know and listened to, Hifiman re400 is a close second but has a slight mid bass hump to make it sound natural and less analytical. But the etymotic is 3x more expensive so pick your sound preference.

 

[lisq199]

+1 for ER4P. ER4P and ER4S are probably as analytical as it can possibly get. If you don't have an amp, then go with ER4P, because ER4S sounds very bright and harsh without an amp.
If you want to go custom, then the UE Reference Monitor is probably your best bet.

 

[froxmor]

  +1 for ER4P. ER4P and ER4S are probably as analytical as it can possibly get. If you don't have an amp, then go with ER4P, because ER4S sounds very bright and harsh without an amp.
If you want to go custom, then the UE Reference Monitor is probably your best bet.

The ER4P are very old but apparently still highly valued. Is there a way to get them below their MSRP?