DAPAudio PA240 Owner's Manual page 12

Example 4 Terminal
Fig. 3
Connection Input
The balanced phone jack inputs have a nominal impedance of 20 K (10K with unbalanced wiring) and
will accept the line level output of most devices. The correct input depends on 2 factors: (1) whether the
input signals are balanced or unbalanced, and (2) whether the signal source floats or has ground reference.
Figures provide examples of recommended connection techniques for each type of signal source. The
optional connector is shown.
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