Here at long last is my take on the Beyerdynamic T90 Jubilee edition - presumably the same as the standard edition, but I don't know exactly what the differences are. I do know that this headphone sounds about like what I've seen in the frequency response graphs at the various testing sites.
http://www.hifiheadphones.co.uk/for...90th-anniversary-stereo-headphone-review.html
http://www.hifiheadphones.co.uk/for...90th-anniversary-stereo-headphone-review.html