If the drivers match in diameter, then it would be somewhat possible to transplant the driver, but you can be sure that sound will change. Sometimes modding the same headphone will make drastic changes, taking a driver to another enclosure might change completely the sound. You would need to...

Compensated as in they take the average ear response and use it as reference, so a flat line on the graph would be more or less the same as it would be for a speaker response.

The Sonorous X is 630g, the VIII is 490g, just 10g more than the Hope VI.

  I agree with having a nicer experience with more expensive gadgets but I think that it's fine if it makes a compromise to make another area way better than the competition. I just don't need fancy unboxing and lots of accessories, just a nice headphone, one that I can wear without problems...

I wouldn't care about being metal, wood or even plastic, it just needs to be done right. 

  Seems perfect. Was looking at the Focal Spirit Pro but the headband cracking scares me enough to avoid it plus I wanted something more on the top tier side.

Had been reading the thread (still didn't went through all pages reading it all slowly), I'm still confused, is it v-shaped or balanced/flat-ish? Seems like a hit for the price and I'm looking for a top tier closed hp (or near top tier, but it seems there aren't many flat sounding options :/ )

So it seems I'm still stuck with the ck100pro as an option (or top-tiers, but they are too expensive :( ).

  The IM03 has the same level of detail? I always thought about the ck100pro being my most obvious option to upgrade, just the weird shape (that should result on a finicky fit) keeps me from upgrading.

  Accessory Jack has them for 659: http://www.accessoryjack.com/sennheiser-ie800-canal-earphones-for-iphone-ipad-ipod-black.html

  I would find the UE Mini Boom interesting only when getting two, for proper stereo (dual streaming). The UE Boom is pretty good and the Pulse isn't that great, very harsh highs. For now I own the Sony BTX300, great for the price IMO.

Probably 500USD MSRP and coming soon.

All those tests were done only with the reference/neutral filter?

  If I'm not wrong, iPhones never had Wolfson DACs, at least neither the 4 nor the 4s have Wolfson (they are using Cirrus Logic).

Maybe this can help on testing different tones: http://www.phys.unsw.edu.au/jw/hearing.html   Try at least on the -45dB range, then go up if it's too low.