The Siegfried Linkwitz "Orion" speakers are natural sounding and superb examples of open baffle design. Check "Linkwitz Lab.com" for more info.
Tekton Open Baffle Speakers
I see they have new open baffle speakers with 15 inch woofers that can be pre-ordered for 3000 bucks. After the pre-order period they will be 7K.
Has anyone heard a prototype of this speaker? At this price point it's tempting to order and sell if I don't like it. I have 4 two channel systems and a vibrant stereo kit graveyard.