Very nice review, like Bluezdude I've just got hold of these.
I literally only just 'woodie' my MS1i's but something attracted towards the T50rp.
I'm not sure what it was but perhaps the allure for something other than dynamic headphones.
I purchased these at a Big Buys down here in Australia for $128 Aus. They are literally only a few days old and I will admit they needed some burning in for the first few hours. But after that they had a very laid back and seductive sound to them! I now understand what a black background in sound would look like now!
The music just fades in with such cosmic wonder and then goes off in to the dark murky distant where you can't hear or see the edge. Honestly I feel that this feature is something you will have to experience, it's probably not on everyone's list to try in the headphone world but it should be!
I've already played around with different pads but ultimately opted for the originals. But I did open them up and notice the cavity behind the speakers was very empty! I placed precisely 6 cotton balls in each side and closed them back up.
I couldn't believe how much 12 cotton balls have effected the sound of these headphones. All the muffled/veiled/distant sound was no longer there and the headphones for the lack of a better term had became 'Alive'! The highs are now easily heard still with it's beautiful laid back feel but with more detail and sparkle. Bass is just the same if not more detail as well. I am loving these T50rp's they are so likable, the sound is fluid and smooth and without an hint of any listening fatigue!
I'm running these out of a bahringer HA400 amp at the moment and for enjoyable listening level I have it at 12 o'clock! Yes, they do love to be fed but here's the kicker - they don't distort or get any harsher the further you wind up the volume! It makes me wonder what amp would have great synergy with these headphones!
Lastly what makes them amazing to me is the overall experience I get every time I put these on and chill out to my music library. (Man these headphones love ambient/electronic/trance/dubstep!)
Overall, Great work Fostex! (Maybe I've reached the end of my Headphone Journey!)