Rear-Panel Description - Orban 424A Operating Manual

Wide-range
attack
time
,
release
time
,
and
ratio
controls permit device
to
sound extremely
natural or
to
create special effects
Extremely
easy to
use because attack and
release
time
controls interact
and
also
change the compression
threshold, assuring consistent
peak
output levels
and
minimizing need
for
manual readjustment
of
the output attenuator
Operation
is
intuitive
and natural
--
you
don't
need a chart
or
an advanced
degree
to
figure out what's happening
Low-distortion operation
teams
clean class-A
VCA
with all-important
dynamic
distortion
reduction
in
the control
circuitry
—
25dB
gain reduction range with constant 90dB
(typical) clip-to-noise ratio
regardless
of
amount
of gain reduction
Better than
25dB
de-ess gain
reduction
available
in
addition to the
25db
compressor/limiter
gain reduction
—
True
peak-reading output
level
meter allows operator
to positively
prevent
VCA
clipping
—
or to use a controlled
amount
of clipping to
limit
peak
levels
—
True peak-reading
gain reduction meter
—
Choice
of
general-purpose
linear or special-purpose
exponential
release
characteristics
—
Strong
all-metal 19" rack mount package
for
ruggedness, roadworthiness,
RFI
shielding,
and
ease
of
mounting
—
Lighted meters with
long-life
lamps
Input, output, and
AC
power RFI
suppression
make
the unit ideal for difficult
environments
like
broadcast
stations, areas near
mobile communications
transmitters,
etc.
—
Balanced
inputs and outputs
—
I
I5/230V 50/60Hz power
supply standard
—
Industrial-grade parts and
construction
—
Highly cost-effective
FRONT
PANEL
The
Front-Panel Photograph
at
the beginning of
this
Manual shows
the various
DESCRIPTION
operating
controls.
These
controls and
their
operation
are
fully
described
in
Description and Function
of
Front Panel Features
in
Part
C
(Operating
Instructions)
below.
REAR PANEL
The
FUSE
used
in
both the
422A
and
the
424A
is
a I/4A
(115 volt operation) or
DESCRIPTION
I/8A
(230 volt operation)
3AG
250V
SLO-BLO
type.
Replace
with the
same
type
only.
The
OUTPUT ATTENUATOR
is
fully
described
in
Description
and Function of
Front Panel Features
in
Part
C
(Operating Instructions)
below.
The INPUT
and
OUTPUT
connectors provided allow connection via barrier
strip
(#5
screw). Holes
are provided for installation of
"XLR"-type
connectors,
and
a retrofit
kit
is
available
from
your
dealer.
Please
refer to the
Electrical Installation section
for
connection
instructions.
6