Behringer ADI21 Acoustic Amp Modeler Direct Recording Preamp DI Box

The Behringer ADI21 is an analog acoustic guitar preamp and direct injection box designed for stage performance, recording, and live sound applications. It enables acoustic guitar players to connect their instrument directly to mixers, audio interfaces, or PA systems while maintaining tone and signal integrity. This makes it suitable for live performers, recording musicians, and studio engineers.

The unit uses analog modeling circuitry to emulate the tonal characteristics of a tube microphone preamp. A high impedance input preserves the dynamics of piezo pickups, while a three band equalizer with sweepable mid control allows tonal shaping and feedback management.

In practical setups, the ADI21 can function as a direct recording preamp or as an active DI box. Dual output options and ground lift functionality make it adaptable for both studio recording and live stage systems.

Key Features

• Acoustic Amp Modeler: Analog modeling preamp designed for acoustic guitar tone shaping
• Direct Recording Capability: Integrated DI output for recording and live sound applications
• Tube Microphone Modeling: Circuitry designed to emulate the warmth of tube microphone preamps
• Three Band Equalizer: Bass, mid, and treble EQ with sweepable mid frequency control
• High Impedance Input: Preserves signal integrity and dynamics from piezo pickups
• Dual DI Modes: Direct recording output with modeling or standard DI output in bypass mode
• Flexible Output Options: 1/4 inch TS and balanced gold plated XLR outputs
• Ground Lift Switch: Eliminates ground loop noise in live and studio environments
• Flexible Power Options: Operates on 9 V battery or optional external power supply

Technical Specifications