©American
Audio®
‐
www.americanaudio.us
VMS4™
Instruction
Manual
Page
27
(4)
MIDILOG™
Mixer
Section
•
CHANNEL
GAIN
CONTROL
‐
This
adjustment
is
used
to
adjust
the
audio
source
signal
input
gain
for
a
channel.
Never
use
the
gain
control
to
adjust
a
channels
output
volume.
Setting
the
gain
level
properly
will
ensure
a
clean
output
signal.
An
improper
gain
level
adjustment
will
send
a
distorted
signal
throughout
the
entire
audio
line
which
may
damage
speakers
and
amplifiers.
To
properly
set
a
channels
gain
level
control:
o
Be
sure
the
Master
Volume
Control
is
set
to
level
4.
o
Set
the
Channel
Fader
to
level
8.
o
Begin
playback
on
an
audio
source
connected
to
the
channel
you
are
adjusting.
o
Use
the
Gain
Control
to
adjust
an
average
output
volume
of
+4
dB.
o
Repeat
this
step
for
all
channels.
•
CHANNEL
TREBLE
CONTROL
‐
This
knob
is
used
to
adjust
the
treble
levels
of
a
channel
allowing
for
a
maximum
treble
gain
of
+6dB
or
maximum
decrease
of
‐
100dB.
Turning
the
knob
in
a
counter
‐
clockwise
direction
will
decrease
the
amount
of
treble
applied
to
a
channel
signal,
turning
the
knob
in
a
clockwise
direction
will
increase
the
amount
of
treble
applied
to
a
channel
signal.
•
CHANNEL
MID
CONTROL
‐
This
knob
is
used
to
adjust
the
midrange
levels
of
a
channel
allowing
for
a
maximum
midrange
gain
of
+6dB
or
maximum
decrease
of
‐
100dB.
Turning
the
knob
in
a
counter
‐
clockwise
direction
will
decrease
the
amount
of
midrange
applied
to
a
channel
signal,
turning
the
knob
in
a
clockwise
direction
will
increase
the
amount
of
midrange
applied
to
a
channel
signal.
•
CHANNEL
BASS
CONTROL
‐
This
knob
is
used
to
adjust
the
low
frequency
levels
of
a
channel
allowing
for
a
maximum
bass
gain
of
+6dB
or
maximum
signal
decrease
of
‐
100dB.
Turning
the
knob
in
a
counter
‐
clockwise
direction
will
decrease
the
amount
of
bass
applied
to
a
channel
signal,
turning
the
knob
in
a
clockwise
direction
will
increase
the
amount
of
bass
applied
to
a
channel
signal.
