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SPECIFICATIONS
M
AIN
AMPLI FIER:
MAXIMUM
OUTPUT:
25W-25W (SOW to
tal)
HARMONIC DISTORTION
:
Max
.
0
.
15
%
at 20W
fo
r
1,
000
Hz
Max
.
0 .95
%
at
20W
for
30
Hz
INTER
MODU
LAT
IO
N
DISTORT ION
:
Max
.
0 .85
%
at 20W
,
(50
Hz
+
5,500
Hz)
FREQUE
NCY
RESPONSE:
10-80,000 Hz at ±1 d
B
OU
TP UT IM
PEDA
NCE:
8 and 16 ohms
G
AIN AND
SENSITIVITY:
R
S
T
PHONO
:
MAG 84 d
B (Ou
t
put 20W
at
1.1 mV
in
put)
x-
T AL 54
dB (O
utput
20W at 36mV
input)
TAPE
:
86
d
B (Ou
tput
20W a
t
0 .9 mV
in
pu
t)
MIC:
86
d
B (Ou
tp ut 20W
a
t 0.9mV in
pu
t)
AUX
:
(TA PE
MON)
51 d
B (O
utput
20W a
t
50mV inpu
t)
TUNER
:
51 d
B (O
utput 20W at
50
mV in
pu
t)
ESIDUAL
NOISE:
below
0
.25
p.W
IN
RATIO
52
dB
(at
TAPE
termin
al)
ONE CONTRO
L:
Type
CR
50
Hz
+
11 to
-
15 d
B
10 ,000
Hz
+
12 to
-
13 dB
E
QUALIZER:
Ty pe
NF
TAPE
:
NART
B
(50p.s)
PHONO:
RIAA
A CCESSORY CIRCU ITS
:
PRESENCE CO NTROL:
Turn
o
ver
a
t 150
Hz
LOW
FILTER:
50Hz
-
12
.5
d
B
HIGH
FILTER:
10,
000
Hz
-
13 .5 dB
LOUDNESS CONTROL
TONE DEFEAT
TAPE MONITOR
HEADPHONE JACK
TAPE RECORDER PLAYBACK CONNECTION
(DIN)
TERMINAL FOR
CENT
ER·CHANNEL AMPLIFIER
LEVEL METER (FOR
OUTPUT)
Thre
e ra nges
of
5,
10 and 25W
BLEND CONTRO
L
VACUUM
TUBES,
TRANSISTORS AND DIODES:
7 189
A
X
4
, 6A N8
X
2,
12AX
7
X
3,
OA-91
ge
rmanium
d
iode
X
2, 25B-381 tra
nsis
tor
X
4, 50-1
B
silicon
d
iod
e
X
2 5 W-
0503 silico
n diode
x
l
TOTAL
:
9 t ubes
a nd
9 di odes
POWER
SUPPLY:
117V
AC, 50 and
60
Hz:
POWER
CONSUMPTION:
150VA
DI
MENSIONS:
W
idt
h
15"
/
6 / ' .
Depth 12
19 /
32
/1
.
Heig
ht 5
19
/ 3 /
'
.
WEIGHT:
30
lbs
-
5
-
~
"I..
CHARACTERISTICS
TONE CONTROL CHARACTERITICS
FREQUENCYRESPONSECHARACTE~ST~S
1111
I 1
1111111
NF:
26
dB LO AD RESISTANC
E
:
16
0
HMS
20
r-M~X
M~X
6
-
4
II)
~
~
10
2
w
:---....
a;-
0
'"
....
TONE DEFEAT
~
z
0
w
-
2
0
......
en
,
"-
Z
.......
A
'"
..."...
~
- 6
~
-
10
~
- 8
- -
OU TPUT
:
I
W
-~
'"
0::
-10
- - - -
OU
TPUT
: 20
W
-
20
MIN
I
II 1111
-12
1
I
I
I
1111
100
I
K
10
K
10
1 00
I
K
10K
lOO
K
HIGH AND LOW FILTER CHARACTERISTICS
HARMONIC DISTORTION
I I
I
I I
I
I
I
I
10
I
J
~Nt~t t~fE~T
10
-
HARMONIC
I
Ke
;;;-
e
___
DISTORTION
100%
'
LOAD RESISTANCE
: 16
0HMS
-
0
-
1-
-
z
_
.
-
10
Ke
~
r-
0
w
;::
~
-1
0
HIGH FILTER
Q:
0
5
0
LOW FILTER
...
"-
,
"\.
!!?
~
-20
\
c
II)
Q:
I
:'J
-
30
1
.
,
--
-,....
-
100
I
K
10
K
o I
5
10
15
2
0
2
5
I
NPUT AND OUTPUT CHARACTERISTICS
INTER MODULATION DISTORTION
I
I
I
I
I
I
I
I
10
5
.5
Ke
+50
%
LOAD RES
IS
TANCE
I6
0HMS
25
/ '
e
I
NPUT
:
MAIN
/
z
NF
: 26
db
LOAD
Q
RESISTAN CE
: 16
0HMS
...
10
:5
5
...
-
!!?
II
~
c
...
::::>
1
"-
...
::::>
II
1
5
10
15
20
0
I
/
V
0.
3
I
2
-
6
-
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