Hitachi HA-7700 User manual

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(8
ohms, 1 kHz, 0.01 %
THD):
70
watts+
70
watts
(4ohms.
1
kHz,0.01%
THD):
53watts+53watts
Power Band Width: 5
Hz-100
kHz
(0.03% THD)
Frequency Response
Direct Coupling:
Condenser Coupling:
Total Harmonic
Distortion
(20
Hz-20
kHz.
8 ohms
from
MAIN
IN)
at rated
output:
at 1
/2
rated
output:
Intermodulation
Distortion
(60 Hz : 7
kHz,
4 :
1)
at rated
output:
at 1
/2
rated
output:
Input
Sensinvity/lmpedance:
Input
Terminals:
Output
Terminals:
Signal-to-Noise Ratio
IHF. Short-Circuited,
DC-lOOkHz+0,-1
dB
4
Hz
(6
dB/Oct)
0.02%
0.005%
0.008%
0.003%
1 V (47 kohmsl
Direct Coupling/
Condenser Coupling
(Selected by
Rear
Panel
Switch)
A
or
B Speakers
A network, Rated Power: 115 dB
Damprng Factor
1 kHz. 8 ohms, 1
/2
rated
output:
60
Channel Separation
1 kHz. 8 ohms:
Speaker Impedance:
Phones
Impedance:
75 dB (4.7 kohms short)
4 ohms -
16
ohms
More than 4 ohms
English
Deutsch
Francrais
PREAMPLIFIER SECTION
Input
Sensitivity/Impedance
Phono 1, 2:
Tuner,
AUX:
Tape Play 1, 2:
Phono overload
(1
kHz.0.01%
THD)
Phono 1, 2:
Output
Level/Impedance
Pre-0ut:
Tape REC
out
1, 2:
Maximum
Output
Levels
(0.01% THD)
Pre-0ut:
Frequency
Response
Phono:
Tuner.
AUX:
Signal-to·Noise Ratio
(I
HF,
Short-Circuited
A
Network.
Rated Power)
Phono
1.
2:
Tuner,
AUX.
Tape Play
1.
2:
No. 160
For Service Manuals Contact
MAURITRON
TECHNICAL
SERVICES
8 Cherry Tree
Rd,
Chinnor
Oxon
OX94QY
Tel:-
01844-351694
Fax:-01844-352554
Email:-
MM 2.5
mV
(100 ohms, 22 kohms.
47 kohms, 100 kohms)
MC
250
µ.V
(100 ohms)
150
mV
(47 kohms)
150
mV
(47 kohms)
[Tape play 2
(DIN):
150
mV
(47 kohmsl
(Except
for
U.S.A. &
Canada)]
MM 300
mV
MC
30
mV
1 V (600 ohms)
150
mV
(600 ohms)
[Tape
REC
out
2
(DIN):
50
mV
(80 kohms)
(Except
for
U.S.A. &
Canada)]
More than 7 V-
(
MUTE:
OFF)
20
Hz-20
kHz.
±0.2 dB
10
Hz-100
kHz,
+O
-2.5
dB
MM 86 dB. MC 68 dB
lOOdB
100 dB
STEREO
AMPLIFIER
March
1979
/