Quote:
Originally Posted by
adktitan 
you can fix this yourself with a little portable amp. it is one of the best features of portable amps IMO....
Certainly, but I rarely feel like lugging along two devices during my daily routine, no matter how small the second is. The entire point of the iPhone, to me anyway, is convergence. I can use the iPhone and the hf2s while walking from place to place, sitting on the bus, or while riding my motorcycle. I can just wrap my hf2s around my iPhone and drop them into my pocket when I'm not using them. And honestly, the iPhone headphone out sounds good enough without an amp to be serviceable while at work.
FWIW, I have a little D3. It's about as portable as anything out there, and it sounds good ... but it rarely sees use outside of long flights. I just can't be bothered to mess with an extra cable and an amp, however portable, more than twice the size of the iphone (volumetrically). Luckily, the iP4 output is decent enough that it isn't a huge sacrifice. I can deal with the volume stepping. It's not a big sacrifice in the name of convenience and traveling light. :)