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SCH <e001^
Fig. B-3:
Control
Loop
Bass
Rolloff Strapping
Audio Connections
Connecting
the
414A
Connpressor/Limiter
to
other
equipment
is
quite
straightforward. Relatively
uncomplicated systems
(such
as
home
playback systems,
"semi-pro"
recording
studios,
electronic
music
studios,
dance
bars,
etc.)
tend
to
come
together without
serious
grounding problems even
if
the wiring practices are
somewhat
casual,
provided
that
high
RF
fields
are not present.
Unusual
situations
can
be
analyzed
if
you
are familiar
with
the
standard
rules
governing grounding and
interfacing
between
balanced and unbalanced systems.
The
instructions
below
will
apply
to
the
majority
of
cases.
A
comprehensive
discussion
of
interconnections
and
grounding
can
be
found
in
Appendix A.
Input:
The
cable
should
be
connected
to
the
414A
input
according
to
Table
1
below.
The
electronically-balanced
input
of
each
channel
of
the
414A Compressor
is
compatible with most
professional
and
semi-professional sound
equipment, balanced
or
unbalanced,
whose
source
impedance
is
6D0
ohms
or
less.
If
it
is
greater
(as
in
some
vacuum-tube
audiophile preamps),
a
minor
modification
may
be
made
to
the
input
to
accomodate
the
situation.
Please
refer
to
Appendix
A
for further
details.
Nominal
input
level
is
between
-10 and
+4dBm. The
absolute
overload
point
is
+20dBm.
Output: The two
outputs
of
each channel
of
the
414A
are electronically-balanced
and
floating.
The
source
impedance
of
each
leg
is
less
than
100
ohms
in
parallel
with
lOOOpF
to
the
chassis
(for
RFl
suppression).
The
output
is
capable
of driving
loads
of
600
ohms
or higher.
Both
balanced and unbalanced outputs can
be
taken
between
the
(+)
and
(-)
output
terminals.
In
the
unbalanced
case,
the
output
amplifier
is
designed
to
operate
correctly
if
its
(-)
output
is
grounded, and no
special
precautions
need
be taken.
7
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