Breedlove's Atlas Series contains a number of different basses, including the ABJ250/SM4, which is made with Breedlove's jumbo body (seventeen inch lower bout, along with five inch body depth at the tail block and a four inch body depth at the heel) with a soft cutaway. The top is solid sitka spruce, whereas the sides/back are made out of mahogany. The combination of sitka spruce and mahogany results in a deep, mellow, sound.
