Yamaha NCX1200R is a preamp system for acoustic guitars that offers a wide range of features to enhance your playing experience. With its onboard tuner, you can quickly and easily tune your guitar, ensuring you're always in tune. The 3-band EQ allows you to adjust the sound to your preference, boosting or cutting the bass, mids, and treble. The pickup mix control lets you blend the sound of the built-in pickup with the sound of your guitar's natural resonance, giving you a more natural and balanced sound.