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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





Denon DCD-820

 The DCD-820 Compact Disc Player incorporates Denon's Super Linear Concerter which prevents deterioration of sound quality in PCM playback systems. This assures accurate reproduction of the digital signals recorded on compact discs no matter whether they are pure studio recordings or "live" performance recordings. All parts making up this CD player have selected with the greatest care in order to produce high quality realistic playback of the full musical content on compact discs.
 Double Super Linear Converter
The use of Denon's unique system and D/A converters with excellent resolution to prevent zero cross distortion, the main cause of reduced sound quality in the PCM playback system, make for sound field reproduction with rich musical expression.
 High Performance Digital Filter
The DCD-820 uses independent D/A converters for the left and right channels and an 8x oversampliong high precision digital filter to bring out the best of the analog filter and offer, crisp sound.

Digital Output
The data on the compact disc is output in digital format, so the music can be reproduced on an external digital processor or D/A unit.
 Simple Playback of 8 cm CD Singles
8 cm CD singles can be played without using an adaptor.

Function and Displays
Direct selection; automatic search; programmed playback, repeat playback; manual search; auto space; time mode; auto edit; emphasis feature and headphone jack input.
Displays: Track number; time; music calendar, and engaged modes.
Remote Control System:  RC-220 Unit, infrared pulse system.
Specifications
Audio Sections
DAC D/A Converter:  2 x PCM56P-L  -  SM5818AP
CD Mechanism:  KSS 150A
No. Of Channels:  2-channels
Frequency Response:  2 - 20,000 Hz
Dynamic Range:  97 dB
Signal-to-Noise Ratio:  102 dB
Harmonic Distortion:  0,004% (1 kHz)
Separation:  98 dB (1 kHz)
Wow & Flutter:  below measurable limit ±0,001% W.peak)
Output Voltage:  0 - 2,0 V variable
Discs:  Compact Disc format
General Characteristics
Power Supply:  220 V 50/60 Hz
Power Consumption:  12 W
Dimensions (W  x H x D):  434 x 103 x 315 mm (17,1" x 4,0" x 12,4")

Weight:  4 kg
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