Coincident Speaker Technology,Audio Note, Lowther and Soliliqy all come to mind. I'm sure there are many others but these are all names that come up for sale quite often so if you don't like them they should be fairly easy to move. Hope this helps.
Tube Friendly Speakers
I need a pair of speakers that my 25w per channel monos can handle, one of my audio pet peeves is an underpowered speaker, so I need something that 25 watts can really move, I am trying to keep it under $2000 new, I've thought about trying the Triangle Antal xs but I have no where to audition them, any other recommendations