External Input; Level Control; Output Switching - SoundCraft SM12 User Manual

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External Input

1
An external input, from a jack socket on the rear panel, may be added to the group
2
bus. The input is balanced with a sensitivity of +4dBu.
3
1
The EXT IN control adjusts the level of the external signal to the group, it
provides a maximum 10dB gain when it is fully clockwise.
5
6
2
The latching ON switch activates the external input when pressed.
7
8
3
The momentary LSTN (Listen) switch provides a pre-level control, pre-ON solo
to the 'phones or wedge output. LISTEN is not affected by the AUTO CANCEL
or SOLO CLEAR functions, and overrides any output AFLs if INPUT PRIORITY
9
is active. Pressing LSTN will not cancel other solos.
4
Six output modules are fitted in each console. The output module contains two
group output sections, stacked one above the other. The lower sections control
groups 1 - 6, while the upper sections control groups 7 - 12. The two sections have
identical facilities.

Level Control

The group summing amp is assigned to one of the twelve group buses using internal
push-on jumpers.
4
The 100mm FADER controls the level of the signal from the summing
amplifier, which is fed to the insert send and ultimately the Group Output, with
10dB of gain at maximum.
Insert Point
5
The insert point is post-fade, and uses an electronically balanced send and return
at a nominal level of +4dBu. The insert SEND and RETURN are on separate 1/4"
jacks on the rear connector panel. The insert point may be bypassed using the
INSERT OUT switch.

Output Switching

6
The PHASE switch reverses the phase of the group output. The group output
itself is electronically balanced at +4dBu, on a male XLR on the rear connector.
7, 8
The L and R switches route the group signal to the left and right stereo mix
buses respectively. This feature allows subgroups to be created, if the console is
used in a FOH application.
9
The CUT switch mutes the signal to the group output and stereo mix bus (if
selected). The switch has an integral red LED which indicates when the signal is
cut.
Group Output Module

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