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Accuphase P-500

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Technic details

Specifications

Type:
Stereo power amplifier
[Continuation average output (20Hz to 20kHz, 0.02% of distortion)]
At the time of stereo specification (Both channels operation):
500W + 500W (2Ω)
420W + 420W (4Ω)
250W + 250W (8Ω)
125W + 125W (16Ω)

At the time of monophonic specification (Bridge connection):
1000W (4Ω)
840W (8Ω)
500W (16Ω)
[Total harmonic distortion]
At the time of stereo specification (Both channels operation):
0.02% (2Ω)
0.01% (4Ω - 16Ω)
At the time of monophonic specification (Bridge connection):
0.02% (4Ω)
0.01% (8Ω - 16Ω)
IM distortion (SMPTE-IF):
0.003%
[Frequency response]
At the time of a continuation average output:
20Hz to 20kHz, +0 -0.2dB (Level-control maximum)
At the time of 1W output:
0.5Hz to 300kHz, +0 -3dB (Level control maximum)
0.5Hz to 100kHz, +0 -3dB (Level control 6dB)
Gain:
28dB (Both stereo and monaural)
Load impedance:
At the time of stereo specification - 2Ω - 16Ω
At the time of monophonic specification (Bridge connection) - 4Ω - 16Ω
Dumping factor (50Hz):
At the time of stereo specification - 500
At the time of monophonic specification (Bridge connection) - 250
S/N ratio (A correction, both stereo and monaural):
120dB (At the time of input short-circuit and a continuation average output)
100dB (At the time of input 1kΩ and 1W output)
The semiconductor used:
Transistors - 82 pieces
FET’s - 10 pieces
IC's - 8 pieces
Diodes - 79 pieces

Power source:
AC 100 / 117 / 220 / 240V, 50 / 60Hz
Power consumption:
115W (At the time of no inputting)
840W (Electrical Appliance and Material Control Law)
850W (At the time of an 8-ohm load Output power)
Dimensions (W x H x D):
481 x 218 (Including legs) x 445mm
Weight:
33.5kg
Year:
1985

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