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II.
PANEL
DESCRIPTION
,.1ti
,\
-,/
switch
in any
key to
1. POWER
from
power transformer,
powER
2.
unit
the
3.
StG
than
4.
OVERLOAD
stage,
5.MASTERLEVELCONTROL:Fullcounterclockwiserotationof
attenuation,
found
6. OVERATL
,,hard-wire"
the
7.
OVERALL
switch
SWITCH:
source
the
tNDtCATOR:
readY
is
pRE
NAL
-20dBm
output
at
unit
is applied
stage,
full clockwise
approximately
BypAss
bypass
pass
will
BypASs
the
is in
The
which
to
to
NT
SE
INDICATOR:
through
in
the
thereby
When
oPerate.
lN DICATO
to
or any
3:00,
swlTCH:
the sP
of
tNDtcAToR:
Position.
life
line cord
powering all
yellow LED
this
Th
R:
inputs
the
red
This
5 equalizer
the
of
rotation
(Central
Pressing
15, including
the
of
all
electronic
is connected
the
of
green LE D
is
unit,
the
of
illuminates
LED
Daylight
this
the
active
red
12dB
button
electronics'
LED
yields
This
device,
into
functions
vital
is lit, alloutput
minates
illu
even
stages
signal
comes
gain through
of
Time)'
to
ground. In
illuminate
will
this
primary
the
and
muting
whenever
in the
whenever
the
bypass
within
thiscontrolprovidesfullinput
"in"
position
the
whenever
windin_gs
lights
circuits
signal
the
4dB of
unit.
the
out
allows
the
of
are
input
an
mode'
level
clipping'
Unity
provides
position,
the
A
r'f'
,,(-s.
power to
the SP
of
unit'
on
fully
greater
signal
the
at
gain will
complete
a
input
the
overall
bypass
.r?'r
\o,t
f low
15's
and
input
be
to
B. BANDWIDTH
1/30 octave
bandwidth
clockwise
filters
g.
FItTER
i"rponi"
counterclockwise
10. FREQUENCy
f requeni
four
11. FTLTE
bands
12. FItTER
of
rotation.
the
to
TEVEL
through
when
octaves.
BypAss
R
providing
BYPASS
shelf
the
CONTROL
in the
(eulling
mode.)
coNTROL:
ih"
rotation
SWEEP
end
swtTCH:
instant
LED:
this
r"rp".tive
nets a
CONTROL:
bands
comparison
llluminates
(Q):
Full
respective
controlto
center
The
filter,
-1
5dB cut'
in the
are
Each of
counterclockwise
1.5 octave
A
filter.
position
out
the
detent
full clockwise
the
Sets
shelf
f ilter
f ive
the
between
the
when
position
center
mode).
bypass
response
flat
filter bypass
rotation
bands
on
of
rotation
f requency
Available
sweep
switches
and
"on"'
is
this
of
bandwidth
1
and
control
this
yields
of
d
equalized
a*12dB
filter
the
range
the
isable
control
is realized
5 will
guarantees
band
is
respective
response'
yields a
at
switch
boost,
(Turnover
approximately
f ilter
full
the
flat
full

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IV.
FUNCTIONAT
DESCRIPTION
The
both a
octaves on each of the
equalization situation
The
due to the nature of audio system
A typical system
while
notedthatBands2and4willalsoreachwellintotherangeof
mode
achieved by setting the
cut.
The
counterclockwise
sets the filter at
clockwise cut type controls.
is
During
comparison of
nature
become
LEDs associated
holiday,
1 5
SP
Studio
parametric
switchable
feedback
of 1 and
sense of the SP
up and down
the
of
5 may
EQ set-up
parametric
lost in the
available
Parametric Equalizer/Notch Filter incorporates all of the
equalizer
five
requiring
shelving/peaking feature
rolloff
control and
1.5
is down.
the equalization effects.
with these bypass
correction will
used,
be
center f requency of bands 2 or 4 and dialing
1
5's controls is very straightforward.
delivers the
octaves.
process,
equalization.
grey
area between
for recall
notch f ilter
and a
bands, this device will serve the
this incredible
of
rolloffs
hum reduction requires the use of the
well
as
minimum filter bandwidth,(1/30 octave), while
The filter level controls are standard clockwise
The frequency sweep
the
at any time.
and the
require
some
as
individual band bypasses
This feature
Without this
center frequency, bandwidth and boost/cut.
switches serve as a
With
set.
Bands
the shelving
peaking
a bandwidth
power.
1
and
unforgiving
or
control
capability, it is
reminder
5
of the SP
problems
modes of the switchable bands,
Bandsl and5sothattheshelving
notching in
Rotating the bandwidth control
provides
may
is indispensable
all
that the
required features
range
needs
peaking
the
the same type of action,
be
too easy for the operator to
1/30
of
of any conceivable
15
are extremely
feedback
of
same frequency area
in the required boost or
used for
due to the complex
respective band
octave
and
mode. lt should be
full clockwise
boost, counter-
instant A/B
an
of
to 1 .5
useful
hum.
f ully
up
The red
is
on
of the
One
parametric,
equalization
built a
not aff ected by
thatthe"Q"
by the
The equalization
their
and
This is the
most difficult
to center
adjustment
accuracy.
still
and
When
have no effect on the
mathematical equivalent being dividing by
still operate
independently.
most basic design
is
products
respected
well
olthefilterswillnotbeaffectedinanywaybytheamountof
Level controls.
outputs are
most straightforward
frequency and
of
The SP
provide
Bands
1
normally,
immunity from control
the
through the
reputation
position.
s lid er
filters in Rane
simply
understand
to
bandwidth
frequency and
1
5 incorporates circuitry
complete
5
and/or
are operating
filters.
allowing the
requirements of any equalizer,
use
of
on the
based
The S P
summed
is
the
Q,
independence, a
1 5
utilizes
products
via their
easiest to
and
freedom
controls.
the controls
but
in
the shelving
Bandwidth becomes an
user to set the tu rnover f requency of the shelf
interaction.
the
perform
level
understand
f rom interaction
which allows
feature which
zero. The Level
Variable
State
fact
that the
the exact sam e circuit
filtration tasks totally
their
controls
parametric
Most
must be
these controls
mode, rotating
whether
This is
portion
set in a certain order
undefined
accomplished
Filter. The Rane
bandwidth of the
to either a
of the theoretical
provided
equalizers
is
control and the
unique.
very
the bandwidth controlwill
it
conf igu
boostorcutselected
boost bus or a
by the
term
filter with
provide
to be set
in
f requency
graphic
be a
in
all
graphics have
filter sections
ration
to ensu
independently,
stuff.
separate
maintain
to
in
any
mode,
this
and
or
Rane
is
re
cut bus.
The
regard
fashion
the
control
the level

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9

VI. OPERATI
NG
I NSTRUCTIONS
4
your
15
the SP
Once
connection
Power up the
practice
good
equalization
minimizes
outtothe
idea to start
level
surprisesthatcanbeencounteredbyhavingl2dBof
with the bandwidth
system,
Once
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adjustments.
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leveiof
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controls
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into the
parametric may do
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instructions
system
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on the SP
control
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reach the
available
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Rane
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the
with
you
that
so
RTA and
likely see
case,
control
is the case,
microphone as
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on
f requency
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apply
beyond
rolloff area.
and are
properly
found in the
in the
atthe
next, and
master
master level control
point
premise
some
normal
head
of turn-on
(Of
coursethis
level control
15
set to their
set to
where everything
through the
similar)
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can appreciate
gradual
a
good
the acoustics
of
1
Band
boost
the corner
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the
often
installed
previous
fashion, always
the system,
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finally
transients
realtime analyzer
for the
sweep
procedure will
used
power
minimum!
use of
you
have one available.
instructed
steady
the cause
that
of
low end
control(s)
via the
of the
or
As mentioned
together.
in
amplifiers.
high
in
nevera
is
all the
center
rolloff at the
detents.
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on the SP
appears
this equalizer),
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how
by the
the surroundings.
or
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not
2/3
octave
system
section,
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stages
problem in
way counterclockwise
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boostcenteredatafeedbackfrequency
either a
15
until
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is
the
5 for the
Band
for roughly.5
level control.
point,
yield
a
graphic,
in
Section
in accordance
it is
then
on the
sound
any
Following
f rom findingtheirway
Rane
all
canned or
normal system
(minus,
you
job
of
you
lf
don't
your
life would
manual
To correctthis
high end
1
to
lf the applied
simply
perfectly
move the
possibly
or
graphics
V,
to twist
time
power
are
equalization
octave
f lat
amplifiers
sources
power-up
this
systems!)
and
the
live source
of course,
ready
have access
for
low
end
the
rolloff,
to select
into
response
the adjacent
and
with the
and
lt
the
possibility
applied
gain
to
easier,
if
be
the
of the
loudspeaker
the
boost
frequency
parametrics
system
knobs.
some
last'
mixers
sequence
allthe
is
averywise
5
boost/cut
of any
to the
achieved.
is
dramatic
the
make some
and
to one,
you
did.
device
in
in use.
analyzer.
along
pulloutthe
the shelving
rolloff area
raises the
control
most cases.
bands
lt is
first,
way
we
read
4
of
are
When
curve.
relatively
measured
given indication
iound,
product
what
Equalizing
technical
piano
ihe
using a
These
experimentation
you
by ear.
operator
means
layout and
is available.
realtime analyzer,
can be
BWs and
wide
deviation.
sort. Study
this
of
see on
system
a
writer
is not
lt
somehow
solid
removed effectively
proper
lt is difficult
on the
the display.
to convey
engineering.
realtime, since
is usually the
readout of
the
without
something
The SP
a
of the
all
knows
15 makes
lt
realtime analyzer
what
Rane
you
will usually
amounts
to specify
no two
best
the analyzer
only
takes
nuances
that can
he wants
it
as
provides
notice broad
usingthe
boost
of
precisely
way to
a
of
be taught,
easy as
SP
or cut
situations
become
time to
short
requires a
such a talent.
hear and
to
piano,
the
peaks
15
the types
and CENTLY
just
it
possible
its bandwidth
with
depending
the same.
are
familiar
get
the
more talent, and
bit
lt becomes
happens..
makes
through
provide
you
in
dips
and
the
on
correction
of
As
with the
make corrections
feel of
a bit
When
it happen
straightforward
the
the
controls
direction
required
inexact as
capabilities
it.
is hard for a
it
like
equalizing.
using
music.
response
set
of the
for
it may
of a
based on
playing
by ear,
whatevet
control
for
a
the
4

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CAIN:
OFF
TO
+1
1)
2dB
MAXIMUM
INPUT
MAXIMUM
OUTPUT
FREQUENCY
BAND
BAND
BAND
BAND
SUBSONIC
ULTRASONIC
D|MENSIoNS:
WEICHT:
0dBu
INPUT
IMPEDANCE:
OUTPUT
IMPEDANCE:
RANCES:
1:2OHz TO
2:6OHz
3: 150H2
1,000H2
5:
FILTER:
FILTER:
5lbs.
:
0.775Vrms
LEVEL:
2,000 Ohms
LEVEL:
300H2
1,OOOHz
TO
2,5OOHz
TO
TO
FIXED
FIXED
1.75,,H
NET
x
*23dBu
*28dBu
15Hz;
TOkHz;
AT
Balanced
-18dB/octave
600 Ohms
20,000H2
AT
19,,W x5.25,,
600 Ohms
into
-12dB/octave
RACK
DEPTH,
ALL
STEEL
CHAssls
!
VII.
SCHEMATICS
at
9