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Direct boxes buying guide

A direct box (DI) connects an instrument or other audio source to a suitable mixer or recording input, helping match the connection for your setup.

Explore what to consider

Active or passive?

Active DIs use powered circuitry; passive models do not require an external power source. Consider the source, the destination input and the model's specifications when choosing.

Match source and input

Check the source type and output level, then confirm the DI is suitable for the mixer or recording input. Follow the manufacturer's connection guidance for the specific model.

Plan your connections

Choose mono or stereo routing to suit the source and destination. Where offered, input pads can help accommodate higher-level signals, and a thru output can pass a signal onward to an amp or other equipment.

Power and ground lift

Active models require power; the source may vary by model, such as phantom power or a battery, so check its specifications. A ground-lift switch, when provided, may help address an audio hum loop; it is never a substitute for protective electrical safety grounding.

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