Sunday, 16 December 2012

Marantz SM-50 52,800yen(around the 1980 time)


Slim type component of a Marantz Stereo power amplifier of component stereo 50 series.

The amplifier circuitry has realized the Low-TIM design by DC amplifier stream composition of DC servo IC loading.

Newly developed EI transformer that is excellent in a high region property and has a margin in a collector loss is adopted as a power-source part.

The power meter of the logarithmic compression mold which can read peek power (4ohm and 8ohm) without a changeover of a range is carried.

Two speaker terminations are carried and it can sound simultaneous or separately. 

Form Stereo power amplifier
Output power (20Hz - 20kHz, both channel drive) 50W+50W (8ohm)
THD (20Hz - 20kHz, 8ohm) 0.02%
Cross modulation distortion (SMPTE, 8ohm) 0.02% (at the time of an Output power)
Frequency characteristic 5Hz-50kHz+0 -0.3 dB
Input sensitivity/impedance 1.5V/32kohm
Dumping factor 80
SN ratio (IHF-A) 120dB
Supply voltage AC100V, 50Hz/60Hz
Power consumption 125W
Dimensions Width 416x height 73x depth of 302mm
Weight 7.9kg

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