7
Operating Manual - DLM-821 Stereo Ducking Line/Microphone Mixer
7.
TYPICAL
APPLICATIONS
7.1
S
mall
S
ound
R
einforcement
S
ystem
I
n
the
setup
sho
w
n
here,
the
DL
M-821
is
used
to
mi
x
typical
sound
sources
that
might
b
e
found
in
a
small
clu
b
,
school
theater
or
similar
en
v
ironment.
INPUT
channels
1
&
2
are
used
for
microphones
for
li
v
e
v
ocal
or
instru-
mental
pic
k
up.
INPUT
channels
3-8
are
used
for
the
output
of
electronic
music
de
v
ices
such
as
k
ey
b
oards,
M
IDI
sound
modules,
drum
machines,
etc.
T
he
po
w
er
amplifier
(
or
any
additional
graphic
e
q
uali
z
ers
or
electronic
cross-
o
v
ers
w
hich
may
b
e
used
)
is
fed
from
the
M
AIN
O
UTPUT
connectors.
7.2
C
hurch,
S
chool
O
r
M
eeting
R
oom
S
ound
S
ystem:
H
ere
the
DL
M-821
is
used
to
mi
x
sources
typically
found
in
a
church,
classroom,
or
meeting
room.
T
he
channel
2-4
inputs
are
used
for
microphones
for
li
v
e
v
ocal
or
instrumental
pic
k
up.
Channel
1
is
fed
b
y
an
alarm
signal
w
hich
w
ill
ha
v
e
priority
and
fully
attenuate
all
other
inputs
if
it
is
recei
v
ing
an
input
signal.
Channels
1
through
4
w
ill
ha
v
e
their
Stereo/Mono
s
w
itch
pushed
in.
T
he
remaining
INPUT
channels
are
used
for
audio
outputs
from
v
ideo/
DVD
players,
cassette
dec
k
,
C
D
player,
computer
sound
card,
etc.
One
input
channel
is
reser
v
ed
as
a
spare.
T
he
po
w
er
amplifier
(
or
any
additional
e
q
uali
z
er
or
electronic
crosso
v
er
w
hich
may
b
e
used
)
is
fed
from
the
M
AIN
O
UTPUT
connectors.
T
he
Mono
output
is
connected
into
the
w
all
mic
j
ac
k
to
feed
the
mi
x
into
the
b
uilding
'
s
main
PA
system.
H
ere
the
Mono
Output
selector
s
w
itch
should
b
e
pushed
in
for
a
mic-le
v
el
signal.
Microphone
Inputs
On Ch. 2 - 4
(Mono Switch In)
Left and Right
Speakers
DVD/CD Player
Videotape Audio
Stereo
Power Amplifier
Laptop Audio
Alarm or
Priority Override
Audio Source
(Mono Switched In)
Mono Output to
Wall Mic Input
for Secondary PA
(Set Mono Output
to Mic level)
Microphone
Inputs
On
Ch.
1
and
2
(Mono
Switch
In)
Stereo
K
ey
b
oard
Input
On
Ch.
3
Left
and
Right
Speakers
Stereo
Drum
Machine
Inputs
On
Ch.
4
DVD/CD
Player
Midi
Sound
Module
Stereo
Power
Amplifier
Cassette
T
ape