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Aphex Studio Dominator 700 - 6 0 Panel; Front Panel Controls; Drive; Output Ceiling

Aphex Studio Dominator 700
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6.0
FRONT
PANEL
CONTROLS
On
the
front
panel,
from
left
to
right
you
will
notice
five
control
knobs
and
six
pushbutton
switches.
Of
these,
the
"drive"
and
"output
ceiling"
controls
are
the
most
important.
6.1
Drive
The
drive
control
adjusts
the
amount
of
limiting
which
will
take
place
for
a
given
input
level.
It
is
similar
to
a
threshold
control
except
that
no
change
in
peak
output
level
occurs
as
the
drive
is
adjusted
for
more
limiting.
An
ordinary
threshold
control
would
reduce
the
output
level
as
more
limiting
is
obtained,
and
thus
require
an
output
gain
make-up
control
to
restore
the
desired
peak
output
level.
In
this
case,
it
would
be
impossible
to
calibrate
an
output
gain
make-up
control
to
any
specific
output
level,
since
that
would
depend
on
the
threshold
setting.
The
Studio
Dominator
therefore
1s
much
simpler
to
use
than
the
usual
limiters
with
threshold
controls.
6.2
Output
Ceiling
The
output
ceiling
control
sets
the
absolute
maximum
peak
output
voltage
from
the
limiter.
Expression
of
the
ceiling
level
is
in
units
of
peak
dBu.
For
those
not
familiar
with
peak
dBu,
this
is
merely
the
peak
amplitude
of
an
audio
wave
relative
to
1.1
volts.
The
1.1
value
is
derived
from
the
peak
value
of
a
sine
wave
producing
1
milliwatt
into
a
600
ohm
load.
Thus,
dBu
is
the
voltage
equivalent
to
dBm
without
regard
for
load
impedance,
and
peak
dEu
is
the
voltage
equivalent
to
peak
dBm
without
regard
to
load
impedance.
Since
the
Studio
Dominator
output
impedance
is
very
low,
it
acts
as
a
voltage
source
and
will
thus
produce
the
same
calibrated
output
voltage
into
any
normal
load
impedance.
Thus,
dBu
is
a
convenient
unit
of
output
level
calibration
since
it
directly
correlates
to
dBm
into
a
600
ohm
line
and
is
more-or-less
a
standard
of
measurement
in
audio
systems
which
mix
600
ohm
lines
with
high
impedance
lines.
The
output
range
of
the
Studio
Dominator
is
-2
to
+21
dBu
in
1 dB
steps.
The
range
switch
sets
the
range
of
the
output
ceiling
control
to
either
-2
to
+9
or
+10
to
+21
dEu.
To
determine
the
output
level
from
the
Studio
Dominator
in
peak
volts
(Ep)
when
dBu
is
specified,
use
the
following
equation:
dBu
Ep =
Antilog
x
1.1
volts
20
1 9

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