Hi Scott,
Thanks for the info on the colour combo - I can imagine that it comes off even better in the flesh.
Re: tubes and Zus, whoever warned you were right. The local Zu dealer carries Almarro, Rogue, and Melody and all sound very nice with the Defs. The Almarro A318B and the Rogue M150 mono blocks sounded especially fantastic with the Defs; not to mention all the other Zus. I've been told the two different Audio Mirror Amps (running Russian tubes) at 20 and 45W/channel in Class A sound wonderful as well and are not too expensive. Dare I say that my new very own parallel single ended 20 watt monos from Triode Corp would likely fare very too.
If I had the big Zus, the Rogue M150s would certainly on the short list and be given serious consideration - they put out some serious power that exhibits great detail, rock solid bass, and superb 3D sound staging for very reasonable $$.
The beauty of the Def 2s is load of choices you have tube amp-wise ranging from 2W/channel amp Yamamatos to something like monster Rogue Zus @ 225W/channel. It all depends on what youre looking for and you're fortunate that the Def2 sensitivity makes this possible. I suspect you'll be one busy man for the next few months.
Enjoy your new beauties.
Cheers,
Garry