Here are some photos of a friend's new system. It is way over the top. The horns are all machined out of billet aluminum and are of the Tractrix type. The large mid bass horn is welded up rolled aluminum plate. The super tweeter is an ALE.
The drivers are from ALE and TAD. The subwoofers are from Aurasound.
Here is his website. It has been posted here before. http://www.magico.net/
They are available for purchase as they are being made by him in a limited run... you may need to mortgage your home though... they are extremely expensive.