The BOSS AD­2 Acoustic Preamp is a sound processor for performing live with acoustic-­electric guitars.

Housed in the familiar compact pedal chassis, the AD­2 features an Acoustic Resonance effect that is designed to recreate the complex tonal characteristics of an unplugged acoustic, plus a high-quality reverb optimized for acoustic guitar performance. The pedal also includes stage essentials like a notch filter for feedback reduction, a balanced DI output, and more. The AD­2 features two independent outputs. Players can use the Output jack to connect to an acoustic guitar amp or stage monitor, and use the Line Out to send a balanced signal direct to a PA mixer. The AD­2 also provides low-­frequency feedback reduction with an easy-­to­-use notch filter, and offers the ability to use the foots witch to mute the sound for switching guitars and tuning on stage.