I am sad to say, well in a way, that my Reference outpaces and performs better than my modified Little Dot Micro Tube. It is more open and so on and so forth. The MT has a nice power supply and plenty of power out with two 634 buffers per channel and I have taken out the caps that in my opinion should not be there, and although the sound is really very good, open and very enjoyable to listen to, the Reference just keeps getting better and Xin says there is another board. Oh lord of the musical realm, where does it end. :^)
Oh, I just got some Equation RP-21's and these headphones cook! They aren't even broken in yet but the Reference drives them with aplomb. I love the French in the English language.