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The SOS Guide to Live Sound by Paul White

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Chapter Six DI Boxes

 

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‘DI’ (Direct Injection) boxes are an essential and all too often underestimated component of any live sound rig, so it is worthwhile devoting a chapter to them.

Direct Injection simply means plugging an instrument’s output directly into a mixing or recording system, via a suitable matching device. Any electronic instrument, such as a keyboard, drum machine, electronic drums and electric guitar/bass is a candidate for Direct Injection. The reason we need DI boxes rather than simply connecting the output of the instrument directly to the stage-box and multicore is that the output level, connection format and source impedance ...

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