what is the best super speaker and why?

It's possible that I was mistaken. I thought Brian Kurt indicated that they were the U-1 design, as he seemed to be describing all other models as being a step down from what I was listening to; if that is the case, I will need to make a point of hearing the U-1. But this just further confirms my point, as I was actually comparing a model U-3 with an Uno; which for my tastes and the circumstances under which I heard them were clearly better...no brightness or hardness at all; and both, I am assuming, around the same price point.
I am curious, as you seem to be well versed on Soundlab's line. The Sound lab website makes no mention of any model U-3; rather U-1, A-1, A-3, M-1, M-2 and M-3. Is the U-3 a discontinued model, like the A-2??? or is it an upgraded
A-2 or M-2?

The Soundlab U-3 is discontinued. If you want this size speaker, the new M-3 is better.

Sound Mind's web site lists these as new U-3, gold finish, and on sale for $12,888.00. The U-1 retails for $32,000.00, making the lowest dealer cost near 20K. I cannot imagine a dealer selling new stock at a $7,000.00 loss. That is why I doubted they were U-1's, but I guess anything is possible.

If you are ever in the DFW area, your welcome to listen to my U-1 Soundlabs.

I would like that, I am frequently in the DFW area on business and often just for pleasure. What would be the best way to contact you to arrange this when I am ready?

I have only had the extreme pleasure of hearing the Avantgarde Duo's once.(AudioEmporium-Milwaukee)
Absolutely near the top of my Best sounding system list. Driven by all BAT gear and Kimber cables, I remember an unbelievably smooooth sound with plenty of detail. And the very definition of effortless. That's what my ears told me anyway, so its hard to figure out how others would say strident, but thats ok, opinions cant be 'wrong'.
listen-on

It was interesting to hear a couple of people comment on the Avantgarde's as strident. I heard them in a home set-up with Wavac SET and while I heard many of the attributes people have extolled - certain 'being there, vibrancy, aliveness', my wife and I both left with that exact feeling of having heard an annoying stridency. Just my 2cents