Agreed. I was just thinking of the same and would obviously love to hear the ECs. That said the Taboo is very transparent and I can easily have the Taboo sound SS-like or tubey. The fine tuning posibilities are only limited by one's tube selection. The driver tube being 6DJ8/6922 that alone offers an world of posibilities. So when you hear one, it may simply be someone else's preference and choice. The stock selection of tubes is fine middle ground and it's clear that Steve (Decware) has put thought into it. While they are very decent and I could be very happy with them, that's not what I am using for the LCD-3s, just because there's good and there's better.
The LCD-3s and HD800s for example sound so different from each other you basically have two choices:
- find middle ground and sit pretty
- use tubes aimed towards improved synergy with either of the headphones
+1 for LCD's on Taboo Mk III. I've got mine setup in a way that is amazingly natural sounding with my LCD-3's.