The Boss AD-2 Acoustic Preamp Guitar Pedal is an advanced sound processor for performing live with electro-acoustic guitars. Equipped with powerful Boss technology the AD-2 Preamp features an acoustic resonance effect that recreates the tone of an unplugged acoustic guitar. In addition this powerful pedal also includes features such as a notch filter to eliminate feedback and a balanced DI. With two independent outputs the AD-2 offers flexibility and allows the user to connect to an amp and a PA mixer. As well as providing the perfect tone the AD-2 also comes in a familiar housing that will sit well on any pedalboard.