Audio Input And Output Connections - DAD FZ10004 User Manual

3.4 AUDIO INPUT AND OUTPUT CONNECTIONS

Balanced Input connections
The XLR input connectors are electronically balanced, and wired according to the IEC 268 standard (pin 2
= hot). XLR input connectors should be wired as follows:
Pin 1 Ground/Shield
Pin 2 Hot (+)
Pin 3 Cold (-).
CH 4
When linking the same source signal to several input channels, be aware that there is a limit to the number
of channels an output source Can drive . A typical output source (e.g. a DSP crossover unit) can drive up to
four amplifier channels before external line-drivers might be required to buffer the signal.
Unbalanced Input connections
To connect an input to an unbalanced source, it is possible to connect pins 1 and 3 in the XLR plug at the
amplifier end of the cable. However, a better method is to connect pin 3 to the shield at the source end of
the cable, as this usually results in better hum and noise rejection. Balanced input connections are recom-
mended whenever possible.
FZ10004
Audio inputs - four-channel models
CH 3 CH 2
Unbalanced Input connections
XLR input connectors
CH 1
15
Fig.11
Fig.12