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SPEAKERS
2 (5)
the
second
pair
of
speakers
may be connec
ted.
You
may disconnect
the
speakers
by
releasing pushbut-
tons (4) or
(5).
Headphone
operation
The
PHONES
(3) jack
arranged
at the
front
of
the
unit
serves
to
connect
headphones
or
earphones
with
6.35 mm
(1/4
inch)
coaxial
jack
plugs.
Any
modern medium-
or
high-impedance
headphone
or
earphone
units
may be
used.
By
releasing
pushbuttons SPEAKERS
1
(4)
and
2 (5) the
play
back
signal
will
be
supplied
only
to
the
set
of
headphones
connected
to
these jacks.
Operation
Once
the
speakers
and program
sources are
connected,
the
am-
plifier
must
be switched
on
by
pressing
the button
POWER
(2). The
pilot
LED
(1) will
indicate
immediate
operational
standby
of
the
amplifier,
however
the
speakers are energized.
You
should
now
rotate the
input
selector
switch
SE
LECTION
(6) to
the
desired
program
source
(turntable, tuner,
tape
devi
ce)
and
then switch
on
the
device
in
questton.
VOLUME control
LOUDNESS
button
The
desired
volume may
be
set
at
the rotary switch
VOLUN/E
(13)
which
acts
upon
both
channels.
The
volume
control
is
provided
with a circuit
which aurally
compensates
the
signal
when
the
LOUDNESS
button
(12)
is
pressed.
This
boosts the
base
at
low
volumes
and
(to
a
lesser
extent)
the
trebles
This
achieves
continuous
matching
of
the
playback
signal
to
aural
sensitivity.
When
the
LOUDNESS
button is
in
OFF
position and
the
TONE control
at
center position,
the
frequency
response
is
linear,
irrespective
of
the position of the VOLUME control.
BI\SS
CONTROL
_
TREBLE CONTROL
The unit is
provided
with
variable
bass
(7)
and
treble
(8)
controls, common
to
both
channels,
which act
over
a
large
range.
With the tone
control in
center
position (fixed in
posi
tion) the
frequencv
response
is linear.
Please
note
that
when
either
bass
andlor
treble
is
boosted
to
maximum at extremely
high
volumes
the
speakers
may be
damaged even
if
you
have
selected
speakers
with a
high power
handling capaclty.
This
may
occur
since
boosting
bass
or treble nearly
means
boosting
the
level
at this
range.
For this
reason
the tone
controls should
only
be
used
for
cor-
recting
def
iciencies
caused
by
speaker
location
or
to
compen-
sate
for
acoustic
def
iciencies
of the
room
in
question,
of
a
program
or
acoustic
def
iciencies
caused
by
speakers themselves
(insufficient
bass
or treble
response).
ln
the
great
maiority
of
cases,
optimum
playback may
be
achieved
with
the
tone
control
at center position or
by
merely
correctlng tone by
two
or three
scale
divisions.
BALANCE
Using
the
rotary switch BALANCE (9)
trre volume
ratio
bet-
ween
both
channels
may
be
controlled.
Using
this
control
Vou
may
compensate
for
varying
channel
modulation
or
un-
balanced speaker
locations.
When
the
balance
control
is
rota-
ted
away
from the
center position (may be
fixed in
center
position) the
volume
will
drop on
one channel).
SUBSONIC
FILTER
Very
low
interference
frequencies
may occur
particularly
when
a
stylus
runs
over
a groove
on
a record.
These
very low
frequencies
are, admittedly,
no
longer audible
but
may,
nevertheless,
affect
transmission
quality.
lnterference
of
this
type
may be
recognized
by the fact that the woofer in
the
speaker
moves
slowly
even
though
no
music
is
being
played
back
at
that
particular
moment.
The
subsonic
f
ilter
cuts
off
very low frequency
components
of this type.
Technical data
Rated
output
output
data
complying
with
DIN
at
4
Ohm
music power
RIVS cen+rneus
power
output
Power
data
complving
with
lH
F
20
-
20
000
Hz,
harmonic
distortion
<O.25
o/o,
4
Ohm
20
-
20 000
Hz,
harmonic
distortion
<O.25
%,
B
Ohm
Harmonic
distortion
up
to
2 x
35 W,
1000
Hz
Power band
width
complying
with
DIN 45
500
Attenuation factor
(4
Ohm)
Phono
complying
with
RIAA
I
nputs
Tu
ner
Tape
i
Tape
2
Monitor
Phono
Frequency
response
(bass
and
treble
control
at
center
position)
20
Nz"-
20 kNz
f
1 dB
10Hz-45klHzt3dB
20
I'z*20kHz11dB
150
mV
at
47
kOhm
150
mV
at
47
kOhm
150
mV
at
47
kOhm
150 mV
at
40
kOhm
1.5
mV,
5.0
mV
at
47
kOhm
Maximum
input
level
(measured
at
1000
Hz,
harmonic
distortion
0.7
%)
2x60W
2
x 40\lt
2x38W
2
x
ZB\N
<
0.08
%
10Hz-60kHz
>30
6V
>
i0v
60
mV,200
mV
115d8
+15,-17d8
>
50dB
>
50dB
>
68dB
approx.
19
VA
approx.
195
VA
260
VA
3.15Aslow-blow
1.6
A slow-
blow
Subsonic
filter
threshold
f
requencY
-3
dB
at
18
Hz
Steepness
12
dB/octave
Monitor
switch
for off'tape
monitoring or
tape recording
Outputs
2
Speaker
jacks
DIN
41
529,
4
-
16 Ohm
and
press-type
ter-
minal
strip
for
4
-
16 Ohm,
for two
pairs
of
speakers,
output
and
output
2
maY
be connected
coaxial jack,
114
inch
for
headphone
connection
tape
output to
taPe
jack (DlN)
line
output
to
monitor jack
(Ri=
470
Ohm)
line
output
via
cynch
jack
tape
1
(Bi=
470
Ohm)
Unweighted
signal
to
noise
ratio
(typical
values)
measured
in
compliance
with
DIN
Peak value
via externed voltage
filter
(DlN
45
405)
in relation
to
in relation
to
rated
Power
Tuner, tape
1,
tape2,
monitor
82 dB
Phono
62
dB
Tuner,
Tape
1
,
Tape
2
Monitor
Phono
Tone control
Bass
at
40
Hz
Treble
aI
15 kHz
Balance
control
control
range
Volume
control
with
aural compensation
facility
Cross-talk
atenuation at 1000
Hz
between
individual
channels
between inputs
Power
consumption
no-l
oad
rated
power
maximum
Line
voltages
1
1
5
and
23O
V
,
may be
resoldered
Fusing
115 V
230
V
2x50mW
54
dB
54
dB
Noise voltage
measured
in
accordance
with
IHF
weighted
with
A
Filter
(RMS)
in
relation
to
rated power
Tuner, Tape
1
,
f
ape
2,
Monitor
92 dB
Phono
14
dB
13
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