Vienna speakers use Seas drivers, so you might consider speakers manufacturers using the drivers.
I have built 3 sets of speakers over the years. I fist use Vifa/Pearless and they were OK. My next set used modest priced Seas drivers and I was stunned at their musicality. So my last set I used Seas top end Excel magnesium drivers and they are simply stunning.
The synergy between Seas drivers and my YBA Design integrated is made in heaven. The Excel line has all the musicality and added resolution, etc.
What is the point of all my chatter you may ask? Well if you like Vienna speakers which use Seas drivers, and I have experience Seas drivers in my home grown speakers having great musicality and synergy with YBA, you may consider speaker manufactures using Seas high end Excel drivers in their speakers.
Here are a few speakers manufactures I know of:
1.) Tyler Acoustics
2.) Snell LCR7 XL loudspeaker (discontinued) (http://www.stereophile.com/standloudspeakers/606snell/)
3.) Cary Audio used to make speakers with Seas Excel drivers
4.) Joseph Audio RM33si and Pearl
(I believe the lesser line uses Seas aluminum drivers as Seas makes aluminum drivers as well as magnesium.)
5.) Madisound makes kits using these drivers if your handy.
I'm sure there are others so happy hunting.