Connections; Channel Input - Peavey Mixer User Manual

Connections

The inputs to the Automix 4 are balanced. This means that there are three wires for each connection, a positive, negative and
shield. These should be connected to each pin accordingly. Also, each input has mic level connections AND line level connec-
tions. However, only one set can be used at a time. Both connections feed the same gain stage.
Figure 1. Balanced Audio Input Connections
For unbalanced connections, the GND and negative terminals must be bridged with a jumper. This jumper should be installed
on the connector side, not the receptacle side of the connector. When un-balancing a mic connection, the phantom power must
be OFF. The example below is typical of mic or line level connections. Only the LINE connection is shown for clarity.
NOTE: Unbalanced signal
sources should be located
within approximately six
inches of the Automix 4.
Figure 2. Unbalanced Audio Input Connections
Page 10
NOTE: On Channels 3 & 4, 48VDC phan-
tom power is constantly supplied to the
microphone inputs. Take care when con-
necting microphone signals. These connec-
tions should be made only when power to
the Automix 4 is OFF.
Positive
Negative
Negative
Positive
Insert jumper wire between the negative
and shield pins for un-balanced circuits.
NOTE: On Channels 3 & 4, 48VDC phan-
tom power is constantly supplied to the
microphone inputs. Therefore, an un-bal-
anced microphone connection is not pos-
sible on these Channels. This does not
apply to the Line inputs, however.
Un-Balanced Line Level Input
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Automix 4 User Manual
Balanced Mic Input
OR....
Shield
Balance Line Input
NOT BOTH!
Shield
Hot