
You
have
made
the
right
choice.
The
YAMAHA
Q2031A
Graphic
Equalizer
offers
truly
—
superior
price/performance
and
is
fully
backed
by
YAMAHA’s
wealth
of
accumulated
sound
expertise,
Congratulations
and
thank
you.
The
versatile
Q2031A
enables
you
to
add
up
to
12dB
of
boost
or
cut
at
any
of
31
bands
centered
around
International
Standards
Organization
(ISO)
1
/3
octave
frequencies
from
20
Hz
to
20
kHz.
This
versatility
opens
a
wide
range
of
applications
in
sound
reinforce-
ment
and
recording.
You
can,
for
example,
optimize
gain
to
provide
adequate
feedback
margins
at
all
frequencies.
You
can
also
creatively
shape
frequency
characteristics
to
match
the
particular
room,
studio,
or
hall
and
thus
provide
the
realism
and
fi
delity
that
critical
audiences
demand.
This
manual
has
been
written
to
help
you
obtain
optimum
performance
and
trouble-free
operation
from
new
02031A.
Please
read
it
throughly.
|
FEATURES
@
This
two-channel
system
offers
completely
independent
channel
control—from
the
input
all
the
way
to
the
output.
@
The
narrow,
1/3-octave
bandwidth
and
31-band
control
over
the
entire
20Hz
to
20kHz
range
provides
very
precise
equalization.
|
e
The
Q2031A
has
been
very
carefully
designed
from
both
functional
and
operational
perspectives.
Each
of
the
equalization
sections,
for
example,
has
an
independent
EQ
switch
that
bypasses
the
equalizer
section,
a
High-Pass
Filter
with
a
slider-adjustable
roll-off
frequency,
and
a
-
CONTENTS
RANGE
switch
to
select
boost/cut
+6dB
or
+12dB.
o
.
,
.
.
.
The
highly
versatile
Q2031A
can
be
used
in
a
wide
Variety
FEATURES
nn
of
applications
and
can
be
mounted
in
a
standard
19
rack.
SPECIFICATIONS
........,..................
è
US.&
Canadian
models
|
PRECAUTIONS.............,..........,,..:
Transformerless
balanced
(XLR
Type
connectors)
or
FRONT
PANEL..........,....
sous
unbalanced
(1/4”
phone
jacks)
inputs
and
outputs
REARPANEL.........
0.000
cc
eu
eevee
eeees
are
standard,
with
provisions
for
both
input
and
TYPICAL
CONFIGURATIONS
................
output
transformer,
balancing.
Two
octal
socket
(CHANNEL
A
and
B
)
are
provided
on
the
rear
panel.
They
will
accept
optional
bridging
input
BLOCK
DIAGRAM
transformer
BRT15K
if
desired.
The
output
trans-
DIMENSIONS
see
former
should
be
installed
by
a
qualified
service
technicians,
-
ACOUSTIC
CONTROL
.................,..,..,
CCC
spop
nunta
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