Probably the best portable handset

I have my T 5 p (SN 5100) since 2 1/2 years (then without panniers). Bin at the time very long and sneaked around it have repeatedly tested him for comparing the own iPhone alternating with other listeners in the business (yes, there are shops, the T 1 and T 5 p keep in stock). Particularly impressed me but then have the centers that adequate (powerful but unobtrusive) Bass representation and among others the oblique installation of the transducers to verdankende spatial impression.
The T 5 p is probably the best currently available portable handset, which I do not have all of course tried. Firstly, I make that assessment on my try with different devices in a retail firm and the other on my habits: I am trying automatically whenever possible, 5 p lug around the T and not my other more portable receiver (HD-25, iGrado and various " earplugs "which anyway can not match).
In addition, the T 5 p is more comfortable to wear than my HD-25, which weighs less than half. The T 5 p shields very well, both myself (I like active noise canceling circuitry less) of ambient noise as well as the other passengers of my music noise. It is truly portable, except jogging, as the well 300 g make it noticeable. And you have to be clear that you hardly hear outside noise, so you should flowing traffic and trams have well in mind.
I hear only ALACs. This was the DAC of the iPhone, which is not bad, so far the weakest link between ALACs and headphones. Since 1/4 year I have a Beyerdynamic A 200 p. The brings a further significant improvement. That I can tell, especially with the music that I listen to for years. And as with the T 5 p I try intuitive, the A 200 with p possible to pack, and take the additional box on iPhone gladly accept (has in the cap easily accommodate).
What's even again I noticed quite subjective to the A 200 p: For noise used on some Oliver Koletzky tracks it happened to me that I looked after their origin when listening on the go (so real it appeared), although it was long to me familiar tracks acted.
For differences between T 5 ps with lower or higher SN I can not say anything. The heights I feel subjectively clear, not as flashy or biting. Without external DAC / amplifier is the T 5 p on iPhone loud enough (on the plane). Only when due to an extremely large dynamic low outsorted and the iPhone passages as silent symphony of Schubert I'm grateful that p can turn off the volume limit at A 200.