Digital Monitoring Amplifier PM-64 AVSS

A 2 x 100 watt stereo integrated amplifier with AVSS (Automatic Voltage Shift Supply), a circuit which enables the amplifier to respond instantaneously to the power demands of the wide dynamic range typical of digital recordings. Inputs for Phono (MM or MC), CD, Tuner, Aux, input/outputs for 2 Tape recorders and terminals for two pairs of loudspeakers. On the front, push buttons for Power, Speakers (1, 2), Direct,  Subsonic filter, Tape Monitor, Tape Copy, Loudness and Mono, rotary controls for Bass, Treble, Volume and Balance, and a rotary switch for Selector (Phono MC, Phono MM, CD, Tuner, Aux). Jack for headphones.

Power Output per channel .............:  100 watts rms into 8Ω (20Hz-20kHz)
                                                        :  100 watts rms into 4Ω (20Hz-20kHz)
Total Harmonic Distortion at 8Ω .....:  0.03% (20Hz - 20kHz)
Total Harmonic Distortion at 4Ω .....:  0.06% (20Hz - 20kHz)
Intermodulation Distortion ..............:  0.03%
Damping factor 8Ω (1 kHz) ............:  100
Input Sensitivity/Impedance :
                                   MM ..............:  2.5mV/47kΩ
                                   MC ..............:  250µV/100Ω
                                   Line .............:  150mV/27kΩ
Signal to Noise ratio   MM...............:  80dB (IHF A)
                                   Line .............:  90dB (IHF A)
Frequency Response Line..............:  10Hz - 30kHz
Output Voltage Tape Out ................:  435mV (Phono 1kHz 7.75mV Input)
Output Impedance Tape Out ..........:  560Ω/800Ω (Other/Phono)
Power Consumption .......................:  460 watts

Versions/Power Requirements 
110/120/220/240 V AC 50/60Hz with Voltage Selector

See also the later Marantz PM-64II (Mk 2) Digital Monitoring Amplifier Quarter A AVSS model.

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