I dig the Sabre's aesthetic

How do they sound?
Actually, they sound very good, when you're in the sweet spot.
Dr. David Hyre (formerly of Adire Audio) commented that they sounded like the world's biggest headphones.
They were voted "best Midrange" at one of the RAW Fests in B.C., Canada a few years back and were awarded the coveted "KowTow" award at the last VSAC in Silverdale.
I demo'd them at the Pacific Northwest Audio Society a couple of years ago and Mike Lavigne stated: "Wow! Terry, I don't know if these are better than my speakers, but they cost 1/2000ths as much. Very nice."
FWIW, here's some info on Mike's stuff:
http://www.positive-feedback.com/Issue16/lavigneroom.htm
The drivers are nominal 1.5 inch Radio Shack close-outs that are very nice sounding, but won't play loud individually, so I decided on a focused array. Dan Wiggins measured a couple of the drivers and they had one of the best Frequency Response measurements he had ever seen. I think it was plus/minus .75dB or about 1.5 dB from any peak to any dip from 275 Hz to nearly 18 kHz where it starts a gentle roll-off. The focused array presents none of the comb filtering problems that tend to plague conventional arrays and not having a cross-over anywhere in the midrange allows a very smooth and phase coherant rendering of the music.
Disclaimer: One of the World's Foremost Line Array Guru's has declared that the Focused Array is a "Plenty Dumb Idea" and asked that I read his white paper on the subject. Perhaps he's right, but I'd rather listen to Music than read theory.
Best Regards,
TerryO