Description Product Description The Gibson Acoustic Luthier's Choice Advanced Jumbo is a very special guitar. Full production on the original round-shoulder dreadnoughts didn't begin until 1936, and only about 300 were ever made. This gorgeous, hand-crafted Custom Shop interpretation sports a solid red spruce top, and solid rosewood back and sides. This AJ sounds massive, but remarkably balanced. And its rosewood-topped mahogany neck plays like butter. It's fitted with a premium Lyric Pickup System from LR Baggs.