So...I am the importer for Art Audio. I would encourage you to look at Zu. They work extremely well with Art Audio Amps.
Tom, the owner of Art Audio runs Tannoys and they are an outstanding match.
I have multiple customers running Klipsch. Cube Audio is a fine choice to pair.
That being said, the best option is probably Avantgarde Zeros based on your budget. They are incredible and my first choice. I would need to see if the distributor still has stock but they should be around $15K. The mids and treble would be driven the Jota and the bass has 500w power amps integrated.
I became an Avantgarde Dealer because of Art Audio