I think vinagunner has started a great thing here and I hope it continues as long as is humanly possible, so I've made it a sticky.
I also want to add a picture of a system that surprised the daylights out of me. The system is comprised of: Firestone Big Joe V1.3 8w/ch gain clone, Pure i20 digital iPod/iPhone dock, 6Gen iPod Nano, and just acquired Omega Super 3U's in real Walnut (love the Walnut, never had it before).
My first Omega speaker was the predecessor of the Super 3U, the Super 5 Monitor (with 4.5" HempCone driver) about 6 years ago. They are what converted me to single driver speakers right out of the box, and they were my reference for close to 2 years. When the RS5 driver came along I brought in the Super 3T, Super 3i, Super 3 Desktop, and the Super 3XRS, but not the Super 3U. Did I ever miss the boat on that one.
The RS5 Super 3i captivated me so much with it's sound and versatility that I felt a bigger version of it (the Super 3U) would be almost redundant and not as versatile.
The Super 3U is not a bigger Super 3i - it's a totally different animal. It has the same cabinet volume and tuning as the giant killing Super 3XRS, and sounds every bit as good quantitatively albeit with a slightly different sound signature. The main differences (from memory) are: tone is virtually identical, soundstage is not quite as wide as the 3XRS, but deeper and higher up. Masters of gorgeous midrange.
Currently they're hooked up to a humble front end (haven't tried tubes yet) and I'm quite shocked at the sound. The midrange and sense of space reminds me of the Alnico Monitors in some ways. It makes me think of the 500, 1000, and 1500 dollar systems that were shown at RMAF recently. This system would fit into the $1500 dollar category price wise, but into the $10,000 category performance wise.Addendum:
Strange; I forgot a very interesting aspect of this system - it's low level dynamics are off the charts. I was listening to some choral music at low volume and noticed no loss of detail, dynamics, imaging, texture, fullness, focus, and sense of space than at higher volumes, and how well controlled the dynamic swings were.