Thanks for posting your review. I wasn't quite as enthusiastic about the T90 as you ( unlike you, I did find it too bright for many recordings ), but I did enjoy it. At the time I had the T90, I was directly comparing to the T1...and the extra cash for the T1 was worth it IMO.
One thing though (that I believe may be a copy and paste error): You stated that "The retail price of $679 makes it suitable for use with either a portable or desktop amplifier."
I wasn't aware that retail price was a determining factor
i will check that sometime my editor write something different