The Sigma DME+ is a full body dreadnought acoustic guitar. It features a solid Spruce top paired with Mahogany back and sides. What's more, the DME+ is fitted with a bone nut and saddle. This gives this guitar a superb acoustic tone that will quite easily shame bigger brands costing several times as much. It's bright and airy with plenty of body and detail. The Sigma DME doesn't just stop there. Fitted to the side of the body is an active Sigma CE 304 preamp with volume, bass, middle and treble controls along with a chromatic guitar tuner. The Mahogany neck has a narrow 42.9mm nut and a substantial rounded profile.