In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. With a solid Sitka Spruce top and Mahogany laminate back, the ABJ250/SM 4 Bass takes advantage of the bold Breedlove bass bracing system featuring the JLD Bridge Truss system. The versatile jumbo extra-deep body sounds great acoustically and is ready to plug in and play out. Highly resonant and full sounding, its built with the highest quality manufacturing practices in the world!