Behringer DI22P DI box

Behringer DI22P — Stereo Passive DI Box for Clean Signal Transfer

The Behringer DI22P is a two-channel passive direct injection box for transparent signal transfer between unbalanced sources and balanced consoles. It handles keyboards, backing tracks and multimedia sources, keeping the signal intact over long cable runs. Transformer isolation eliminates ground loops and hum, while the passive design means no power supply, no battery, no phantom power needed. This unit is the right choice for live performers who need a reliable interface between consumer gear and professional balanced inputs.

What Sets the DI22P Apart

Unlike active DI boxes that depend on phantom power or a 9 V battery, this model runs purely on its internal transformer design — connect a source and it works. Each channel has its own ground lift and PAD switch, taming hum and hot signal peaks on the fly. The custom-built Midas transformer delivers high signal integrity and high headroom.

Inputs and Signal Routing

Three input formats per channel cover the gear most players carry on stage.

• Inputs: 6.3 mm TS jack, 3.5 mm jack, RCA — instruments, mobile devices and consumer playback
• Instrument Inputs: 2 — true stereo handling for keyboards
• Line Inputs: Yes — accepts line-level playback from mixers, interfaces and media players

Balanced Outputs and Ground Isolation

The DI22P converts each unbalanced input into a balanced XLR feed for long cable runs. Transformer isolation breaks ground loops between source and console.

• Outputs: Balanced XLR — feeds FOH or studio consoles over long cable runs
• Ground Lift: per-channel switch — breaks ground loops that cause hum
• Phantom Power: Not required

Controls, Power and Build

Fully passive operation means no mains adapter, no battery compartment and no phantom-power dependency. A PAD switch on each channel attenuates hot incoming signals.

• PAD Switch: per-channel attenuation — tames hot line or instrument levels before the transformer
• Battery Powered: No
• Rackmountable: No — compact standalone chassis for stage box or pedalboard placement