Exclusive M4a

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Technic details

Specifications

Type:	Stereo power amplifier
Circuit system:	Two steps of differentials, PP drive, two-step Darlington, quadruple PP Pure complimentary OCL (Class-A operation)
Effective output:	50W+50W (8ohm)(20Hz - 20kHz, both channel drive)
THD (20Hz - 20kHz):	0.01% or less (at the time of an effective output) 0.01% or less (at the time of 25W output) 0.01% or less (at the time of 1W output)

Cross modulation distortion:	0.01% or less (at the time of an effective output) 0.01% or less (at the time of 25W output) 0.01% or less (at the time of 1W output)
Output bandwidth:	5Hz - 100kHz (IHF, both channel drive, THD 0.05%)
Frequency characteristic:	3Hz-60kHz, +0 -1dB (at the time of 1W output)
Input sensitivity/impedance:	Input 1, 2 - 1V, 2V/50kohm
Output-terminal Speaker:	8ohm
Dumping factor:	30 or more (20Hz - 20kHz, 8ohm)
Subsonic Filter:	8Hz, 6dB / oct
S / N:	110dB or more (IHF, A network, a short circuit)
[The semiconductor used]
Transistor:	59 pieces
IC:	6 pieces
Diode, others:	67 pieces
Supply voltage:	AC 100V, 50Hz/60Hz
Power dissipation (maximum electric power consumption):	320W (Electrical Appliance and Material Control Law)
[Power receptacle]
Power-switch un-interlocking:	One line

Adjunct:	A relay code with a pin plug
Dimensions (W x H x D):	468 x 206 x 385mm
Weight:	27.3kg
Year:	1981

Exclusive M4a

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