GB30CE Acoustic-Electric Bass Guitar Natural. The GB30CE features a solid spruce top and mahogany back and sides produces a rich, resonant sound. Its slim mahogany neck and 16-radius rosewood fingerboard provide great feel and playability, while the onboard Takamine TK-40B preamp system gives you a built-in tuner, three-band EQ and gain controls, mid-shift control, bass-boost switch and EQ bypass switch for the ultimate in versatility and sound quality. Other great features include a dovetail neck joint, synthetic bone nut and bridge saddle, rosewood headcap, pearl dot fingerboard inlays, abalone rosette, chrome die-cast tuners and a beautiful gloss finish.