Guild WESTERLY B-240E Jumbo Acoustic Bass Guitar - Natural SatinWe pioneered acoustic bass guitar design in the mid 1970s with the B 50, which featured a jumbo body shape, arched mahogany back, and an easy to play, 30 3 4 scale length. Decades later, these vintage features are back with our B 240E, offering bassists a workhorse acoustic instrument with big tone that plays with ease. Built with a solid Sitka spruce top over an arched mahogany back and mahogany sides, the B 240E will hold its own in acoustic jams.