Short end of it - Improvement in dynamics was there since there was added juice to the sound chain but going "balanced", but I experienced no change in soundstage. An awesome match with the LCD-X. To say there is transparency/clarity/neutrality is a given and if that is your aim, you will hit the mark. But, My ears weren't convinced it was such a great improvement that I needed to keep it...or maybe the ADI-2 serves all my headphone needs (at the moment). Having said that, the THX is awesome and I recommend it highly. I just wanted a 2 channel setup more than I wanted to keep the THX so that went to go help fund it. The RME stays and it can plays a part in my 2 channel setup as well.