Featuring Mahogany back and sides, the Sigma JM-SGE produces a deep and resonant sound with a beautifully warm and musical low-end. The large dreadnought body shape ensures brilliant projection — loud even when unplugged.The  Solid Sitka Spruce top brings out some airy top-end character; giving lush chords progressions or finger-picked arpeggios all of the beautiful clarity they'd need to cut through in a mix