Well, I don't know what that means. But, if human hearing is most acute between 1khz and 4khz, wouldn't that make “flat” essentially mid-centric?
Regardless, I disagree with EarphoneSolution's advertising claim that the 535 is best paired with the iPhone 5. I've never heard the PFE 232, but I have no doubt its native V-shape probably produces a more dimensional sound on an Apple DAP. I'll continue to tell everyone (who asks) that Apple DAPs and the SE535 do not pair well.
When I first stumbled across my original T'Mo Galaxy S2 and SE535 combo (using Poweramp), I thought that those two products should have come in the same box.
I'd have to disagree. :-) I think other than the treble rolloff the 535 sounded excellent on my ipod touch 5th gen. And I'm pretty sure the consensus is that there is a treble rolloff on any device. That's just the earphone. Otherwise, I'd say they were more impressive than the pfe minus the treble rolloff. I think the pfe will impress people that aren't looking for neutrality, because they give a moderate boosted bass and treble in a very high quality manner. The shure's may not be ruler flat, but if the treble extended further the sound would be much flatter than the pfe232. And I found that better personally. However, with the rolloff, unfortunately all of the is moot, because I don't want "part" of an earphone to sound great, I want the whole thing! haha. ;) Or as close to it as possible...
Edited by luisdent - 2/11/13 at 1:28pm