dbx 166 Manuel de démarrage rapide - Page 8
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Figures 6a
and
b
show
the use of
2-conductor
shielded
cable
and
either 3- or 2-cir-
cuit plugs
with unbalanced
loads;
like
3a and
b,
this
often
is
useful for
combatting
RFI
with unbalanced
loads.
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Figure
6a:
Unbalanced
loads,
dual-conductor
shielded cable, stereo plug
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Figure
6b:
Same,
mono
plug
Sidechain hookups
The
sidechain inputs are unbalanced.
They'll
work
with balanced
and unbalanced
sources, but
will
unbalance a balanced
output.
Figure 7a
shows
the connection of
an unbalanced
signal
source
to either sidechain
input
jack;
a
2-circuit
plug
is
used
since
there are only
two
connections
to
make.
If
a
3-circuit
plug
is
used, either
leave the
ring
unconnected
or
connect
it
to the
shield.
Figure 7b
shows
the c<mnection of
a balanced source
to either sidechain
input.
Most
balanced sources
will
work
without
the
dotted connection
between
the
(-)
output
and
grourKi
(this
is
true for
"active-balanced" outputs and "ground-referenced"
outputs).
How-
ever,
some
sources require the dotted connections
shown
—
"transformer-isolated" bal-
anced
outputs.
We
recommend
making
this
connection only
if
necessary
for
your
instal-
lation,
because
some
active
balanced
and ground-referenced
outputs
may
be
damaged
by
doing
so.
Note
that a
2-circuit
plug
is
used here; follow the
instructions
above
if
a
3-cir-
cuit
plug
must
be employed.
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TO
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SlOeOlAIN
Figure
7a:
Unbalanced
source
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164
SIOCCmiN
Figure
7b:
Balanced source