Ed Smith plays a custom-built 14-string dreadnaught built by
Ray Whitaker, who has a couple of 14-string acoustics with vine inlays on his page - how eerie.
Of course, small luthiers can experiment with designs that would make no sense for large companies to entertain. I doubt that the 14-string guitar will become a mainstream instrument, considering that:
a) Ibanez never made that many 12-strings, to be honest, and
b) Even the seven-string boom is fading
Still, at least you now know that it's possible.
