Record
rnanufacturers,
during
the
past
two
or three
years,
have
rnade a deterrnined effort
to
rnake
all
records reproduce properly
by
using the
RIAA cornpensator setting.
Generally,
all
new records will
perforrn well
using
RIAA or
L.P.
settings.
However,
if
a
record
sounds
better
using
the compensator at
other positions
do not hesitate
to use it
that
way.
10.
A Stereo
Tuner
rnay be
used
with
the
C-20
by plugging
the left and right
channels
into
Tuner
Inputs
No.
I
or
No.
2.
When the
I'INPUT
SELECTOR"
switch
is rotated
to the
"TUNERTT
positions,
the record
cornpensator
preamplifier is disconnected
and the
compensator
controls
will not need to be adjusted.
The
"MODErr
selector switch,
"BALANCE
CONTROL,
"
I'PHASE'I
switch,
I'LOUDNESS
CONTROL,
r'
and
the
'|BASS"
and
"TREBLEil
controls,
the
"RUMBLE
FILTER,'r
"TAPE
JACKil
switch,
and
the
"VOLUME
and OFF-ON"
control
all operate
in this
application and
should be
used
just
the sarne as
when
listening to records
or any other
program.
Refer to
paragraphs l, Z, 3, 4, 5, 6
and 8 of this section.
A
stereo tape rnachine with its own playback preamplifiers
should be
plugged
into
the
tTTAFETI
inputs.
(Not
the
"TAPE
HEAD, inputs.)
fhe
inforrnation on
adjusting the
C-20
for
listening
to a stereo tuner
will
also apply when listening to
a tape
rnachine.
11.
The
C?0
stereo prearnplifier rnay
be used
with
tape decks which
do not have
playback
prearnplifiers.
Tape
heads require
a type of
playback
cornpensation sornewhat the sarne way
that
rnagnetic
cartri.dges do.
Setting
the
cornpensator
controls to the positions
rnarked
'rTAF,E'
provides
correct
playback
for
tape heads
and elirninates
the
need of using playback
preamplifiers with
tape decks.
(Note,
however,
that
tlae
C-20 can
not
conveniently be
used
to
record
on tape.
If
you need recording facilities
in
a tape rnachine,
a recording prearnplifier
will be required.
In
rnany
tape machines
this
preamplifier
serves both playback
and record
functions.
)
IZ.
Stereo
rnicrophones rnay
also
be
used
with
the
C-20.
If
the
rnicrophones are low level
(1ow
output
producing
only
2
to 10
may
be plugged into
either
an unused
pair
of
phono
low
(2
to
I0
MV)
jacks
tape head 1ow
(2
to
l0MV)
jacks.
If
the
rnicrophones are rnediurn level l0 to 70 rnillivolts, then
they
either an
unused
pair
of
phono high
(10
to 70
MV)
jacks
or
an unused
pair
to
70 MV)
jacks.
rnillivolts,
then
they
or
an
unused
pair
of
rnay be plugged
into
of tape
head
high
(I0
When
reproducing
microphones
in
phono or tape head
channels
set the
'rBASSil
record
cornpensator
control
to
rtorr
and
the
TtTREBLE"
record
cornpensator
control
to
'rTrAPErr.
This
adjustrnent
gives
a
flat
response for the
rnicrophones. AI1
of the information
given
in
para-
graphs
1, Z, 3,
4, 5, 6, and
8
of
this section
can
apply
to the
use
of
rnicrophones
as
prograrn
sources.
In
the event
that
you
should
happen to use very
high output rnicrophones, 100 millivolts
and
up,
plug thern
into the auxiliary channel.
In
this
channel
the
record
cornpensator controls
do not
operate
and
it will not
be necessary to
adjust them.
All
other inforrnation on rnicro-
phones given
above
does apply.
13.
Two
tape
rnachines can
be used
with
the
C-20
stereo
prearnplifier.
After
you have
connected
your
tape
rnachine
to
the
rear
panel of the prearnplifier
you rnay have someone
bring
in a
portable rnachine to
rnake a
copy
of
one of
your
tapes
or
to
listen
to one of his tapes
on
your
systern. With
the
C-20
you
no
longer
have to unplug
your permanent rnachine.
The
C-20
cornes
supplied
with two
cables
havi.ng
phone plugs
on
one
en{ to
plug
into the front
pan-
et of
the
C-20,
and
pin
jacks
on the
other end to
plug
into any tape
rnachine.
(Adapters
are
available
at anry Hi-Fi
retailer
to
perrnit pin plugs
to connect
with
phone
jacks.
)
-17-
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