Originally Posted by jonnyp11
Doyou want high or low Ohms? And i'm guessing you want the most frequency range possible and lowest distortion. Going by that i removed the 439s as an option because the specs difference in their description wasn't near as much as the cheaper 518s.
The frequency range stated on most of the commercial shill is outlandish and has no bearing on almost anything whatsoever.
Here are the stated specs for say, something like the Westone 4s: (off of earphonesolutions)
Here is a compensated frequency response graph measured from the W4s (from rinchoi's site)
Now I don't about you but doesn't seem to look like they have mighty significant presence near 16kHz.
Then there's stuff like this, extremely typical: the frequency range of the HD800s.
We can't hear up to 44100Hz. No human being could. These are just numbers, and taking them as granted would be a disservice.
And regarding impedance - it's not as simple as that.
Anyways, back to the headphones. Not sure if it is still the same situation on the HD5*8s where the HD555 and HD595 shared the exact same drivers but different housings. But the HD515/8 in both reincarnations were simply not as nice sounding. From memory, the HD558 had a bit more bass and less upper-mids than the HD598. That was about it. Take with a grain of salt though. You'd probably be fine with the HD558, or if you didn't restrict yourself to the three (although it might make things seem easier on your end) you could look at some other offerings from other brands. Again, only doing a disservice to yourself by limiting the choices. Rock/dubstep work on the HD5*8s but it isn't their strong suit.
Have the E5, and they give a nice boost of warm and punch to the HD428s (which was why I got them). So that would would well. Would work with the HD5*8s as well at the bare minimum. E11s would be much more advantageous in this case.
Edit: Having just seen the fact that you will be using them portably, you realize these are open right? Complete leakage outwards and inwards, absolutely no isolation. Why not just upgrade your closed cans?
And regarding the IEMs, it'd be helpful to state preference in terms of sound (not just genres), isolation, comfort, build, etc. In fact it would be helpful on both fronts, with the IEMs and the full-sized.