Marantz 4270 - AM Section Specifications; Audio Section Specifications

TECHNICAL SPECIFICATIONS
FM SECTION:
Tuning
Frequency
Range.............0.-
cc
cece
cece
vee
cceceencecetace
88
—
108
MHz
HFM
Usable
Sensitivity
....
0.00.0...
ccc
cece
eee ene
cee
eeneceuceuas
2.3uV
LE
SQlOCEIVIRY
S305.
bcos
cad
pdawics
ska
wal
wag
Wed
k
we
A
alee
Ss
Wa
a
pes
abate
es
60 dB
Cap
tire
FAtO
ogee
cept
iste
gles feck
ats
eee
Gd
a
cae
Mean
ae
Bonk
ew
aw
arcuate
aek
1.6
dB
Image
Rejection
Ratio
at
106
MHz
..........
0...
ccc
cece
cece
cece
cnt
eeeeaenees
70
dB
Signal
to
Noise
Ratio
(Mono)
........
0...
cece
eee
cee
ee
teen
tee
ene
sntaeeneaes
70
dB
Signal to
Noise
Ratio
(Stereo) ...............
Sis
wie
Sevier
an
eae
he
wrecks
a
oil
da
gba
duchess
60 dB
Total
Harmonic
Distortion
(Mono)
.........
0.0.0
cece
cece
cece
ec
ccecuceteveseaws
0.2%
Total
Harmonic
Distortion
(Stereo)..........
00...
cee
eee
cece
cece
cee
nseceuueuee
0.3%
Frequency
Response
(ref.
75u
sec.
deemphasis)
...............000.
30
Hz
to
15
KHz,
+1
dB
Stereo
Separationrat
1
KHZ...
0...
ccc
ccc
ce
cece
cence
eneveuveeeunenue
40
dB
Quadradial
Output
(400
Hz
75
KHz
dev.)
............000000e
aa
taiS
Maa
au
seteeev
a
300mV
AM
SECTION:
Tuning
Frequency
Range.............2
02
cece
cece
cree
eee
eeeeeeees
540
—
1605
KHz
Usable
Sensitivity
2.0.0...
00.
ccc
cc
cc
eee
cee
cece
ence
nee
neeenenveeceuuave
30uV
PIGIGCTIVIDY
212
eyse
cers
Gegrnce
esters
naira
a
on
ahaa
ah
alg
akan
aan
scas
Oia
&
the
Nocatee
Gees
tek
26
dB
Image
Rejection
Ratio
at
1400
KHz
........
0.0...
ccc
cc
eee
cece
cnc
eeneaeaes
70
dB
Signal
to
Noise
Ratio ...... 0.0...
cece
cee eee
eee
eee
seen
eeeetacnennaes
45 dB
Frequency
Response
(-6
dB)
.............cc
cee
ee
cece cere
ececeuenes
50
Hz
to
3.5
KHz
Total
Harmonic
Distortion
2.0.0...
0...
ccc
ccc
cece
cent
eee
eneesennnseaettues
1%
AUDIO SECTION:
Input
Impedance
—
Low
level
input
...........0...
0.0.
ccc
eee
cece
e
eae
Phono
47K
ohms
Sc
Pight
IEVelIMPUE
2.
o.09
v5
aGueden
dears
ow
awe
Hoo
eens
Kala
100K
ohms
Input
Sensitivity
—
Phono
.........
0.0
eee
cee
cece
ee
eee
neces
2.2mV
for
25W
output
= High level 2.5) cic a eea ede Sane eine wees oereaele 150mV for 25W output
Frequency
Response
.........
0...
cc
cece
cee
cece
cee
ceeenes
+1.0
dB,
20
Hz
to
20
KHz
at
1W output
Intermodulation
Distortion
...........
0.0...
c
cece
eee
cece
ee
ees
Less
than
0.3%
at
rated
power output
Total
Harmonic
Distortion
........
0.0...
ccc
cece
cece
cece
ee
ceaes
Less
than
0.3%
at
rated
power output
’
Damping
Factor
.........
0...
eee
cece
cece
cect
ee
ee
cues
More
than
45
at
8
ohms
Total
Noise
—
From
magnetic
phono
input
..................20
Less
than
2uV
equivalent
to power amp output input noise at 8 ohms rated
power output
WOlishne
Tracking
xo
cee
a
eee
esa
it
aye
mice
aE
Pabaied
Ace
licas
Less
than
4
dB
Rated
Continuous
(RMS)
Output
........0
0...
ccc
eee
cece
cee
ecees
25W
at
8
ohms
all
channels
operating
simultaneously
at
40
Hz
to
25W
at
4
ohms
20
KHz
for
nominal
harmonic
distortion
13W
at
16
ohms
Comparable
Total
Music
Power
..........
0.00
c
cc
eee
e
eee
cece
eeaenenees
150W
at
8
ohms
GENERAL:
Power
Requirements:
2/5222.
«gs
useaune
en
ho
neew
ered
cow
lw
be
Pi
cian
ee
120V
44