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Accuphase A-50

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Technic details

Specifications

Type:
Stereo power amplifier
[Continuation average output (20Hz to 20kHz)]
At the time of stereo specification:
200W + 200W (2Ω)
100W + 100W (4Ω)
50W + 50W (8Ω)
Monophonic specification (Bridge connection):
400W (4Ω)
200W (8Ω)

[Total Harmonic Distortion]
At the time of stereo specification:
0.05% (2Ω)
0.02% (4Ω to 16Ω)
At the time of monophonic specification: 0.02% (4Ω to 16Ω)
IM distortion:
0.003%
Frequency response:
20Hz to 20kHz, +0 -0.2dB (At the time of a continuation average output level control max.)
0.5Hz to 160kHz, +0 -3dB (At the time of 1W output level control max.)
0.5Hz to 110kHz, +0 -3dB (At the time of 1W output level-control 6dB)
Gain:
28dB (At the time of a stereo / monophonic specification)
[Load impedance]
At the time of stereo specification: 2Ω to 16Ω
At the time of monophonic specification (Bridge connection): 4Ω to 16Ω
[Dumping factor]
At the time of stereo specification: 160
At the time of monophonic specification (Bridge connection): 140
[Input sensitivity (At the time of 8Ω load)]
At the time of stereo specification:
0.8V (At the time of a continuation average output)
0.11V (At the time of 1W output)
At the time of monophonic specification (Bridge connection):
1.59V (At the time of a continuation average output)
0.11V (At the time of 1W output)
[Input impedance]
Imbalanced Input: 20kΩ
Balance input: 40kΩ
S / N (A compensation):
110dB (At the time of input short-circuit and a continuation average output)
[Power output meter]
Form: The true value display type of electric power
Display range:
0.1W to 400W (At the time of stereo specification)
1W to 2000W (At the time of monophonic specification)
Hold time:
1 sec., infinity, a change type
With a display putting-out-lights function

Power source:
AC 100 / 117 / 220 / 240V, 50 / 60Hz
Power consumption:
310W (At the time of no inputting)
550W (Electrical Appliance and Material Control Law)
375W (At the time of an 8-ohm load Output power)
The maximum dimensions (W x H x D):
475 x 239 x 550mm
Weight:
48.5kg
Year:
1993

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