Used in audio technology to convert unbalanced signals into balanced signals.
A typical example would be where a signal source such as an electric guitar or electric bass, with an unbalanced signal, needs to go into a balanced input (e.g. mixing desk).
The DI box balances the signals, allowing interference to be eliminated. A ground lift switch galvanically isolates the ground connection to avoid ground loops.
DI boxes are available in passive and active versions. Passive DI boxes use a transformer; input and output signals are galvanically isolated. However, this design causes loss of output level.
Active DI boxes avoid this problem, but require an external power source for their electronics.
KLOTZ AIS GmbH
85591 Vaterstetten / Munich
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