4
Front and rear panel
EMX640—Owner’s Manual
■
MONITOR section
This section allows you to adjust the tone and
volume of the MONITOR bus, and specify the
mix level of the built-in effect.
9
Graphic equalizer
This is a 7-band graphic equalizer that allows you
to adjust the frequency response of the MONI-
TOR bus signal, providing a maximum of
±
12 dB
of cut/boost for each frequency band. You can use
these sliders to reduce the level of frequency
bands at which feedback easily occurs. Frequency
response is flat when a slider is in the center posi-
tion. Moving a slider in the positive direction will
boost, and in the negative direction will cut.
This graphic equalizer affects both the MONI-
TOR bus signal that is output to the speakers and
the line level signal which is output from the
MONITOR jack (input/output panel
6
).
0
EFFECT RTN control
This controls the level of the effect sound which
is returned from the built-in digital effect to the
MONITOR bus.
A
MASTER control
This adjusts the final level of the MONITOR bus.
It affects both the MONITOR bus signal which is
output to the speakers and the line level signal
which is output to the MONITOR jack (input/
output panel
6
).
B
Peak level indicator
This indicator allows you to monitor the level of
the signal which is output from the MONITOR
jack (input/output panel
6
).
■
MAIN section
This section allows you to adjust the tone and
volume of the MAIN bus, the mix level of the
built-in effect, and the mix level of the external
input.
C
Graphic equalizer
This is a 7-band graphic equalizer that allows you
to adjust the frequency response of the MAIN
bus signal, providing a maximum of
±
12 dB of
cut/boost for each frequency band.
This graphic equalizer affects both the MAIN bus
signal that is output to the speakers and the line
level signal which is output from the MAIN jack
(input/output panel
6
).
D
EFFECT RTN control
This adjusts the level of the effect signal which is
returned from the built-in digital effect to the
MAIN bus.
E
AUX IN control
This adjusts the amount of signal that is sent
from the AUX IN jack to the MAIN bus.
F
TAPE IN
This adjusts the amount of signal that is sent
from the TAPE IN jacks to the MAIN bus.
G
MASTER control
This adjusts the final level of the MAIN bus. It
affects both the MAIN bus signal which is output
from the speakers, and the line level signal which
is output from the MAIN jack (input/output
panel
6
).
H
Peak level indicator
This indicator allows you to monitor the level of
the signal which is output from the MAIN jack
(input/output panel
6
).
Note:
To avoid distortion, adjust the MASTER
control (
A
) so that the 0 indicator lights occa-
sionally.
MONITOR
MASTER
EFFECT RTN
+6
+3
0
–5
–10
+12
•
6
•
0
•
6
•
–12
+12
•
6
•
0
•
6
•
–12
125
250
500
1k
2k
4k
8k
9
B
0
A
Note:
To avoid distortion, adjust the MASTER
control (
G
) so that the 0 indicator lights occa-
sionally.
MAIN
MASTER
TAPE IN
AUX IN
EFFECT RTN
+6
+3
0
–5
–10
+12
•
6
•
0
•
6
•
–12
+12
•
6
•
0
•
6
•
–12
125
250
500
1k
2k
4k
8k
C
H
G
D
E
F
