6
Operating
Manual
-
DLM-821
Stereo
Ducking
Line/Microphone
Mixer
Ashly Audio Inc.
F
ig
.
5
.
2
-
DLM-821
I
nternal
J
u
m
per
Location
s
6.
CONNECTIONS
AND
CABLES
6.1
I
nputs
T
he
DL
M-821
stereo
inputs
use
t
w
o
20
k
ohm
b
alanced
(
10
k
ohm
un
b
alanced
)
E
uro
b
loc
k
connectors
per
channel.
W
ire
the
(+)
signal
to
the
(+)
terminal,
the
(
-
)
signal
to
the
(
-
)
terminal,
and
the
shield
to
G
.
I
f
an
un
b
alanced
(
t
w
o
conductor
)
input
signal
is
used,
connect
the
shield
to
b
oth
(
-
)
and
G
.
T
o
dri
v
e
a
mono
source
into
the
stereo
mi
x
,
simply
plug
the
signal
into
the
right
channel
input
and
press
the
Mono
s
w
itch
in.
A
dditionally,
channels
1
through
4
are
s
w
itcha
b
le
to
mic
le
v
el
(
see
sec.
5.4
)
to
add
30dB
gain
for
microphone
inputs.
6.2
M
ain and
M
ono
O
utputs
Outputs
are
200
ohm
"
pseudo-
b
alanced
" E
uro
b
loc
k
connectors,
w
hich
ha
v
e
b
al-
anced
impedance
w
ith
a
single-ended
signal
source
and
can
b
e
w
ired
b
alanced
or
un-
b
alanced.
N
ominal
operating
le
v
el
is
+
4
dBu
and
ma
x
imum
le
v
el
is
+
23dBu.
T
he
Mono
output
is
s
w
itcha
b
le
to
a
nominal
-40dBu
microphone
le
v
el.
I
f
w
iring
an
output
as
un
b
alanced,
use
the
(+)
and
G
connections.
I
f
lo
w
le
v
el
and
high
le
v
el
lines
(
e.g.,
microphones
and
mi
x
er
line
outputs
)
,
or
if
either
of
these
lines
and
spea
k
er
ca
b
les
are
run
parallel
for
long
distances,
crosstal
k
may
b
e
significant.
I
n
fact,
the
crosstal
k (
signal
lea
k
age
b
et
w
een
ca
b
les
)
can
cause
an
electronic
feed
b
ac
k
loop,
oscillation,
and
possi
b
ly
damage
to
the
e
q
uipment.
T
o
mini-
mi
z
e
crosstal
k
,
physically
separate
lo
w
le
v
el
(
microphone
)
ca
b
les
from
spea
k
er
ca
b
les
b
y
the
greatest
feasi
b
le
distance.
A
t
any
point
w
here
ca
b
les
meet,
run
lo
w
le
v
el
ca
b
les
perpendicular
to
high
le
v
el
or
spea
k
er
ca
b
les.
I
f
lo
w
and
high
le
v
el
or
spea
k
er
ca
b
les
must
b
e
run
parallel
and
in
close
pro
x
imity
to
one
another,
they
should
b
e
b
undled
separately.
Shielded
ca
b
le
should
al
w
ays
b
e
used
for
mic
and
line
ca
b
les.
Euroblock
Input
Connections
+
-
G
+
-
G
+
-
G
+
-
G
Unbalanced
Input
Balanced
Input
+
-
G
+
-
G
+
-
G
+
G
Unbalanced
Output
Balanced
Output
Euroblock
Output
Connections