Aux Send; Pan; Sg/Peak; Mute - Alto L-12 User Manual

4.6.4 MID-LOW
This control gives you up to 15dB boost or cut at 500Hz.
11
4.6.5 LOW
This is the Bass control. Boost male voice or kickdrum and
bass guitar. Your system will sound much bigger than what
it is. The gain range goes from -15dB to +15dB and the center
frequency is 80 Hz.
4.7 AUX SENDS Level Control
These four controls are used to adjust the level of the signal sent
to AUX buses, and their adjustable range goes from -
AUX1 and AUX2 can be switched to PRE/POST-FADER via the
PRE/POST button, so, generally, they can be used for monitor
application and effects & sound processors input.
AUX3 and AUX4 are configured as POST-Faders.
In this typical compact unit, excluding sending out directly to the
external effect or processor equipment, AUX SEND 4 can also be
assigned to the internal onboard effect module.

4.8 PAN

13
This is the PANORAMA control, or balance control. Rotate this
control to determine the amount of channel signal sent to left/
right of MAIN MIX when Main L-R push-button is pressed. Keep
this control in center position and your signal will be positioned in
the middle of stage. Turn this control fully counterclockwise, the
signal will be present only on the left of MAIN MIX and vice-versa.
Besides, the PAN or BAL control has the same affection to SUB
1-2 and SUB 3-4 if the SUB 1-2 or SUB 3-4 push-button is pressed,
Of course a wide number of intermediate positions is available.

4.9 SG/PEAK

14
Inside your L-12 the audio signal is monitored in several different
stages and then sent to the SG/PEAK LED. When the LED shows
green, it indicates that there present signal on corresponding
channel; When the LED turns into red, it warns you that you are
reaching signal saturation and possible distortion, then you should
reduce the input level for avoiding distortion.

4.9 MUTE

15
Each channel is equipped with the MUTE switch. Pressing this
switch is equal to turning the fader down, which can mute the
corresponding channel output except for the PRE AUX sends,
channel INSERT send and SOLO (in PFL mode). And the MUTE
LED will illuminate.
10
12
to +15dB.
10
0 0
EQ EQ
HI HI
12kHz 12kHz
-15 -15 +15 +15 -15 -15 +15 +15
0
0
MID HI-MID
3kHz
-15 +15 -15 +15
800 0
FREQ MID-LOW
500Hz
100Hz 8kHz -15 +15
0 0
LOW LOW
80Hz 80Hz
-15 -15 +15 +15 -15 -15 +15 +15
- +15 - +15
0 0
2 2
POST POST POST
PRE PRE
- +15 - +15
0 0
3 3
DFX1 DFX1
(EXT) (EXT)
- +15 - +15
0 0
4 4
DFX2 DFX2
(INT) (INT)
- +15 - +15
PAN BAL
LEFT RIGHT LEFT RIGHT
SG/PEAK SG/PEAK
MUTE MUTE
10 10
dB dB
5 5
SUB 1-2 SUB 1-2
0 0
-5 -5
SUB 3-4 SUB 3-4
-10 -10
-20 -20
MAIN L-R MAIN L-R
-25 -25
-30 -30
-40 -40
-60 -60
SOLO SOLO
4 5/6
10
11
12
13
14
15