What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





Marantz PM-7000 amplifier

PM7000 Integrated Stereo Amplifier

The Marantz PM7000 Stereo Integrated Amplifier offers music enthusiasts uncompromising audiophile sound quality and superior flexibility of operation. It delivers 2 x 95 watts (into 8 ohms), rising to 155 watts with 4 ohm speakers. A single push-pull amplifier, symmetrical circuitry with independent heat sink, anti-resonant, metal front panel and hand selected customized components including HDAM, assure an accurate tonal and image balance. With full system remote control operation, the PM7000 is the ideal center piece for a true high-end music system

 

Features

95 Watts Per Channel Power Output (into 8 ohms)

HDAM (High Definition Amplifier Module)

Symmetrical Push-pull Amplifier

Premium-quality Parts and Construction

Seven Source Inputs Including Moving Magnet (MM) Phono Input

Remote Control Operation Including Volume Adjustment

D-BUS Connector for Integration With a Complete Marantz System

Record Output Selector Function Allows Listening to One Source While Recording Another

Source Direct Switch Bypasses Tone Control Circuitry for Maximum Signal Purity

Processor Loop Allows Connection of a Graphic Equalizer or Other Audio Processor

Two Sets of Switchable Speaker Outputs

Headphone Jack is Included for Private Listening

Three AC Convenience Outlets

 


Specifications

Continuous Power Output (RMS) 8  (<.03% THD, 20Hz - 20kHz):  95 + 95 W

Dynamic Power (4 ) :  120 + 120 W

Total Harmonic Distortion (8 ):  0,3%

Damping Factor:  150

Input Sensitivity/Impedance

Magnetic Phono Input :  2,5 mV/47 k  

Tuner/CD/Aux/Tape Inputs :  150 mV/40 k  

Signal to Noise Ratio

Magnetic Phono Input :  85 dB

Tuner/CD/Aux/Tape Inputs :  88 dB

Tuner/CD/Aux/Tape Inputs

Frequency Response :  10Hz - 50kHz  (-1 dB limits, Source direct)

Tone Characteristic (100Hz & 10kHz) :  ±8 db

Channel Separation :   >80/>70 dB (1kHz/10kHz, Source Direct)

Magnetic Phono Input Accuracy of Frequency Response to RIAA Curve :  0,5 dB

General

Color:  Black

Front Panel:  Metal

Remote Control RC7000PM

Power Requirements:  120 V, 60 Hz

Power Consumption:  250 W

Dimensions Inches (W x H x D):  17-3/8" x 6-1/4" x 14-5/18"

Weight:   27,2 lbs

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