This is one of the “three tenors” made as a bit of a sound experiment. There is a more detailed write-up in the blog. This instrument has a double back. There is an inner back (spruce) separated from the real back by 1/2 and inch of airspace. The theory is that the inner back prevents damping of vibration of the real back when held against the body. It also is supposed to provide an extra resonate chamber. This instrument is the loudest of the three, while maintaining a warm sound (the redwood top uses my standard bracing) and very good sustain.
Top is water-tank redwood, back and sides are Pennsylvania curly maple. Black-red-black purfling, rosewood binding, asymmetric rosette in pink abalone pearl. The neck is Pennsylvania poplar, fingerboard is casuarina (a very hard but invasive tree I cut in south Florida). Fingerboard has a 10″ radius. The headplaate is what I call a ‘Picasso’ headplate, made of all those little bits of wood I could not bear to throw out. Side sound port, black Corian nut, bone saddle. Currently is is strung low-G but can easily be changed to high-G because I use a zero-fret, so no need to cut nut slot depths. $975