Quite some time back, I recall coming across a luthier's website (possibly German?) who had an acoustic bass guitar of a singular design. Instead of a front facing sound hole, he had openings at both horns, on either sides of the neck. I thought he called it a "scoop" design, and that he had some kind of internal baffling like a folded horn speaker. Does anyone know what I'm talking about, and can they send me a link to that website?