The Guild Traditional Series F47RC Acoustic-Electric cutaway dreadnought is comprised of solid Mahogany back and sides, a solid Red Spruce top, a 3-piece Mahogany neck with a Rosewood fingerboard and bridge. The F47RC guitar is outfitted with a D-TARâ„¢ Wave-Lengthâ„¢ Pickup and Preamp System that offers both mic and matrix signal sources.D-TARâ„¢ Wave-Lengthâ„¢ Pickup and Preamp System with Load 'N Lockâ„¢ Battery Access. The Wave-Length combines a think, piezo under-saddle transducer with an 18v, low-noise, high input impedance preamp, to create a system with twice the dynamic range of typical 9v systems. The 18v preamp is powered by two AA batteries and a voltage converter. With 18 volts, the signal has more headroom, so hard strumming won't distort as easily. The guitar's preamp also has an input for a second source, like a magnetic pickup or a soundboard transducer. Two adjustable trim pots, one for low frequency shelving and one for high frequency shelving, allow you to f