For an unplugged sound that’s rich, loud and electrifying, step on the Behringer ADI21 Acoustic Amp Modeler/Direct Recording Preamp/DI Box. This amazing little box is essential for piezo-equipped guitars and will make your acoustic guitar sound come to life! The ADI21 combines the features of an active DI (direct injection) box with our proprietary tube/mic emulation circuitry. Enjoy a full 3-band EQ with sweepable mids and a Blend control that allows you to mix the amount of amp and mic emulation you want with your direct signal. And if you prefer the “old-school” approach, just step on the switch and the ADI21 functions as a rather superb active DI box.