Krell Industries PAM-5 Manual de usuario
Krell
Industries,
Inc.
45
Connair
Drive
Orange,
CT
06477-0533,
USA
KRELL
PAM-5
PREAMPLIFIER
OWNER'S
MANUAL
Telephone:
(203)
799-9954
/
FAX:
(203)
799-9796
PAM-5
The
Krell
PAM-5
Preamplifier
is
a
result
of
four
years
of
research.
Research
not
only
in
electronics,
but
also
in
marketing.
Krell
has
developed
sophisticated
audio
circuitry
that
meets
our
own
rigid
electrical
standards
and
above
all
sounds
musical.
The
PAM-5
is
so
advanced
that
it
will
make
a
statement
for
years
to
come.
This
instruction
manual
is
intended
to
enhance
the
usage
and
en¬
joyment
of
your
PAM-5.
UNPACKING
While
unpacking
your
PAM-5,
please
inspect
the
unit
carefully
for
shipping
damage.
If
all
is
well,
proceed.
Position
PAM-5
in
your
system.
Plug
in
the
power
supply
connectors
on
the
back
of
your
preamp,
lining
up
the
red
dots
of
the
connectors
with
recepticals
on
the
rear
panel
and
push
gently
until
it
snaps
into
place.
Next
plug
power
supplies
into
the
A.C.
wall
outlet.
The
green
led
on
the
preamp
and
the
red
leds
on
the
power
supplies
should
light
up.
If
they
do
not,
stop
and
contact
your
dealer
or
the
factory.
HOOK
UP
Your
PAM-5
comes
to
you
factory
set
for
moving
coil
operation
with
an
impedance
of
100
ohms.
This
impedance
can
be
changed
by
adjust¬
ing
switches
marked
S
1
and
S3.
To
do
so,
remove
the
cover
of
the
preamp
with
the
supplied
alien
key
and
refer
to
figure
1
and
the
following
table.
TABLE
OF
MOVING
COIL
ADJUSTMENTS
all
switches
in
the
open
position
47,000
ohms
all
switches
open
except
switch
8
on
=
1,000
ohms
all
switches
open
except
switch
7
on
=
800
ohms
all
switches
open
except
switch
6
on
=
470
ohms
all
switches
open
except
swit
ch
5
on
=
250
ohms
all
switches
open
except
switch
4
on
=
100
ohms
all
switches
open
except
switch
3
on
=
47
ohms
all
switches
open
except
switch
2
on
=
25
ohms
all
switches
open
except
switch
1
on
=
10
ohms
all
switches
on
5
ohms
1
To
change
moving
coil
to
fixed
coil
(moving
magnet),
adjust
S
2;
refer
to
switch
direction
in
figure
1.
S
2
switch
handles
should
point
to
the
right
side
for.moving
coil
and
to
the
left
side
for
moving
magnet.
TUNER
The
tuner
input
on
PAM-5
is
the
second
input
on
the
back
panel.
It
is
set
up
to
drive
the
high
level
section
of
the
preamp
direct¬
ly.
SELECTOR
SWITCH
PAM-5's
selector
switch
is
used
to
choose
the
desired
source.
Phono,
Tuner,
C.D.
and
Aux.
It
may
also
be
used
to
turn
the
sig¬
nal
off
(completely
muted).
This
can
be
accomplished
by
turning
the
selector
past
the
Phono
position
one
step
above,
in
a
clock¬
wise
direction.
COMPACT
DISC
INPUT
The
C.D.
input
of
PAM-5
is
a
true
phase
correcting
input.
It
has
14
different
adjustments
for
the
various
types
of
C.D.
players.
If
you
refer
to
figure
1
and
move
switches
S
4
and
S
5
to
adjust
for
your
specific
C.D.
player,
the
adjustments
positions
are
as
follows;
Sony:
2-3-1
open,
8-4-5-6-7
on
Technics:
1-2
open,
3-4-5-6-7-8
on
Revox:
2-1
open,
3-4-5-6-7-8
on
Nad:
1-3-4-5-6-7
open,
2-8
on
Kyocera:
1-3-4-5-6-7
open,
2-8
on
Yamaha:
1-3-5-6-7
open,
2-4-8
on
Magnavox
FD
30-30:
1-2
open,
3-4-5-6-7-8
on
Kyocera
910:
1-2
open,
3-4-5-6-7-8
on
If
you
do
not
find
your
brand
of
player
above,
you
may
call
your
dealer
of
Krell
for
specific
settings.
If
you
are
unable
to
con¬
tact
either,
use
the
following
settings.
If
you
have
a
Sony
type
system,
adjust
to
1-2-3-8
open,
4-5-6-7
on.
If
you
have
the
Phillips
2
type
system,
adjust
to
3-5-6-7
open
1-2-8
on.
These
are
the
av¬
erage
settings
for
the
two
systems.
AUXILIARY
The
auxiliary
input
is
the
same
as
the
tuner
input
and
may
be
used
for
a
host
of
different
applications.
TAPE
MONITOR/SELECTOR
SWITCH
This
switch
selects
between
the
tape
input
and
the
input
of
choice
on
the
selector
switch.
TAPE
OUT
To
tape
with
PAM-5,
turn
the
selector
switch
on
the
front
panel
to
the
position
of
the
source
you
wish
to
record.
The
tape
out¬
put
is
not
affected
by
the
position
of
the
Tape
Monitor/Selector
Switch.
OUTPUT
There
are
two
outputs
on
PAM-5
which
are
capable
of
driving
more
than
one
amplifier
at
the
same
time.
D.C.
or
A.C.
COUPLING
Your
PAM-5
comes
to
you
set
for
D.C.
coupled
operation.
If
your
system
is
very
sensitive
to
small
D.C.
voltage
fluctuations,and
you
are
not
using
a
Krell
power
amplifier,
you
may
change
to
A.C.
coupling
by
moving
the
rocker
switch
S
6
to
the
open
position.
BALANCE
The
balance
control
on
the
PAM-5
is
really
a
balance
attenuator.
When
you
turn
the
control
to
the
right,
the
speaker
on
the
right
will
reduce
ini
level.
If
you
turn
it
to
the
left,
the
left
speaker
will
reduce
in
level.
Note,
rotation
in
the
extreme
of
either
direction
turns
the
channel
off.
3
TIPS
ON
INSTALLATION
Do
not
put
the
power
supply
close
to
the
preamplifier.
Close
proximity
could
cause
hum.
This
also
holds
true
for
the
large
power
supply
transformers
located
in
power
amplifiers
and
some
turntables.
Before
making
any
connections
to
PAM-5
please
make
sure
the
volume
is
turned
all
the
way
down.
Our
RCA
connectors
are
made
of
the
highest
quality
materials
available
and
made
to
exacting
standards.
In
fact,
they
are
made
to
the
original
RCA
Standard.
Lesser
quality
connectors
can
damage
them.
Please
check
with
your
dealer
if
you
have
any
doubts
about
your
inter¬
connect's
plugs,
as
the
jacks
are
not
subject
to
warranty
if
abused.
SPECIFICATIONS
Signal/noise
ratio:
'A'
weighted
-110
db
phono
Frequency
responce:
D.C.
-
2
MHz
RIAA
tracking:
greater
than
.1
db
from
20
-
20KHz
Overload:
lKHz
300mv
phono
stage
High
level
voltage
swing:
8
volts
rms
High
level
output
impedence:
10
ohms
High
level
input
impedance:
minimum
10,000
ohms
Warranty:
PAM-5
has
a
limited
warranty
for
a
period
of
five
(5)
years
from
date
of
purchase.
4
a)vjo'cn.bc<iw—
ai'sJO'UUiOJNj
Figure
1
PAM-5
nnnnnnnnnnn
n_n_rL_n_n
nn
n
n
S
1
Moving
coil
switch
direction
52
-CHZ2
S
5
S
A
S
6
5
O
CL©
C
Additional
CD
Settings
P.S.
Audio
CDl
Nakamishi
OMS-7
Magnavox
650
Stax
Q
Mission
707
Yamaha
Adcom
GCD-300
Kinergetics
CDC
20A
Mclntoch
3-
6
-
7
-
8
open
1-2-4-5
on
1-
3
-
4
-
6
-
7
open
2-5-8
on
4-
5
-
8
open
1-2-3-6-7
on
3-4-8
open
1-2-5-6-7
on
2-
8
open
1-3-4-5-6-7
on
2-8
open
1-3-4-5-6-7
on
1-3-4-7
open
2-5-6-8
on
3-4-5-8
open
1-2-6-7
on
3-4-5-6-7-8
open
1-2
on
6
Tabla de contenidos
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