Digital Monitoring Amplifier Quarter A AVSS PM-64II (Mk2)

A 2 x 100 watt integrated stereo amplifier which operates in Class A mode at normal listening levels and switches automatically to Class AB mode to handle high peaks and at high listening levels. It also has 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, TV/Aux1, Video/Aux2, input/outputs for 2 Tape recorders and terminals for two pairs of loudspeakers. On the front, push buttons for Power, Speakers (1, 2), Tone Defeat, Tape Copy, Tape Monitor, MM/MC Phono, Loudness, Mono, CD/Phono Direct, rotary controls for Left and Right Treble, Left and Right Bass, Volume, Balance, rotary switches for Selector (CD, Phono, Tuner, TV/Aux1, Video/Aux2), and Rec Out (CD, Phono, Tuner, Source, TV/Aux1, Video/Aux2). Jack for headphones.

Specification
Power Output per channel .............:  100 watts rms into 8Ω
 (20Hz-20kHz)                                 :  105 watts rms into 4Ω
Total Harmonic Distortion at 8Ω .....:  0.02%
Intermodulation Distortion ..............:  0.02%
Damping Factor 8Ω (1 kHz) ...........:  100
Input Sensitivity/Impedance :
                                   MM ..............:  2.5mV/47kΩ
                                   MC ..............:  250µV/100Ω
                                   Line .............:  150mV/20kΩ
Frequency Response .....................:  10Hz - 70kHz +0dB, -1dB
Signal to Noise ratio   MM...............:  86dB (IEC A weighted)
                                   Line .............:  96dB (IEC A weighted)
Power Consumption .......................:  380 watts max

Version Suffix/Power Requirements

•     A       240 V AC 50/60Hz (220/240 V AC 50/60Hz Voltage Selector)
•     C       120 V AC 60 Hz
•     U       120 V AC 60 Hz
•     N       220 V AC 50/60Hz (220/240 V AC 50/60Hz Voltage Selector)
•     T       240 V AC 50/60Hz (220/240 V AC 50/60Hz Voltage Selector)
•     E       220-240 V AC 50/60Hz (110/120/220/240 V AC 50/60Hz Voltage Selector)

Other badged variants of the Marantz PM-64II include the Marantz Digital Monitoring Amplifier Quarter A 35th Anniversary Series model and the Marantz Integrated Amplifier Quarter A LDPS Linear Drive Power Supply model. See also the earlier Marantz PM-64 Digital Monitoring Amplifier PM-64 AVSS model.

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