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Control panel
10
Stereo input channels
The M3000A provides four stereo input channels. Ste-
reo sound sources such as sub-mixers, effect proces-
sor, or CD players can be input to the INPUT A jacks
(XLR connectors) or INPUT B jacks (RCA phono
connectors) located on the rear panel.
A GAIN A control
This control adjusts the input sensitivity of the signal
that is input from the XLR connector INPUT A jack
(rear panel 4). The level range is +10~ –30 dB. When
the A/B select switch (3) is in the B position ( ),
this control will have no effect.
B GAIN B control
This control adjusts the input sensitivity of the signal
that is input from the RCA phono connector INPUT
B jack (rear panel 5). The level range is +10~ –20 dB.
When the A/B select switch (3) is in the A position
( ), this control will have no effect.
C A/B select switch
This switch selects the input jacks that the stereo input
channel will use. When the switch is in the upward
position ( ) the INPUT A jack can be used. When
the switch is in the downward position ( ) the
INPUT B jacks can be used.
D EQ controls
This is a four-band equalizer which allows ±15 dB of
boost/cut for each band. The HI-MID and LOW-MID
bands allow you to switch between two settings of Q
(steepness). The center frequency, Q values, and gain
range for each band is as follows.
E EQ switch
This switches the equalizer on/off. The equalizer is on
when the switch is pressed down ( ).
F M1–M8 switches
These switch on/off the signal which is sent from the
stereo input channel to MIX buses 1–8.
–30+10
+15–15
A
–20+10
B
GAIN
HI
A
B
+15–15
HI-
MID
+15–15
LO-
MID
+15–15
100
100
100
100
100
LO
EQ
PRE
PRE
M1
M2
M3
M4
M5
100
M6
100
M7
100
M8
100
PRE
PRE
M9
100
M10
100
M11
100
M14
BAL
M13
M12
M13/
M14
100
M16
BAL
M15
M15/
M16
100
A
B
C
E
M
M
M
I
L
M
G
F
D
G
H
J
K
Band
Center
frequency
Q Gain
HI 20 kHz 0.667
±15 dB
HI-MID 3 kHz 1.41/2.88
LO-MID 800 Hz 1.41/2.88
LO 50 Hz 0.667
Note: If these switches are off, no signal will be sent
to the corresponding MIX bus from this input
channel, regardless of the switch setting of the vari-
able/fixed select section (page 13).