DI unit
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A DI unit is an electronic device typically used in recording studios and in sound reinforcement systems to connect a high output impedance unbalanced output signal to a low-impedance, microphone leve
A professional passive DI box. It is passive because it does not need external power to operate. DI boxes which require a power source (batteries or phantom power) are called active DI boxes.
A vintage Wolfbox custom-made by audio engineer Ed Wolfrum in the 1960s.
A passive DI with "throughput" in addition to XLR output
An active stereo DI with pass-through in mono mode only
Balanced audio
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Balanced audio is a method of interconnecting audio equipment using balanced interfaces. This type of connection is very important in sound recording and production because it allows the use of long c
DI unit
…recording studios and in sound reinforcement systems to connect a high output impedance unbalanced output signal to a low-impedance, microphone level, balanced input, usually via an XLR connector and XLR cable. DI units are also referred to as a DI box, direct box, or simply DI, with each letter pronounced…
Three-pin XLR connectors, female on left and male on right
Three-pin XLR plus 6.35 mm TRS phone hybrid jack.