Hard to say.  I was actually most curious about the T5p thinking it had potential.

http://www.innerfidelity.com/images/BeyerdynamicT5p.pdf

http://www.innerfidelity.com/images/BeyerdynamicT5pSN2866.pdf

The sharp 5k and 7k dips on Tyll's graphs are severe ringing. Sharp dips like that on his measurements are almost always ringing. Measurements here show this in a more obvious way.

Also, what up with that seriously high level of distortion, even at 90db, in the midrange?

You'll get a lot of karma points for that one. 

I think they may have chased all the good engineers out of Europe.  We got the bomb and they got the treble peaks

I want to borrow a pair of these to write a review.  That would be fun :-)

Also remember that these are kiteki's favorite full size headphones...

He liked the T70 too, though not as much as the T5p.  I thought it was very nice (though pretty bright...) right up until something hit the narrow ringing in the treble.  Then there was an explosion at the consonant factory.

I wonder if he likes his CSDs full of sharp ridges or something?