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

Rotel RCD 820BX

 Compact Disc Player RCD 820 BX
These high performance CD players offer the latest in CD technology - 16 bit 4 times oversampling system. Featuring twin digital/analogue converters, which simultaneously covert both right and left digital signals, single beam high precision laser tracking and fully programmable music track selection system. All the basic needed to extract very high quality music reproduction from the exciting compact discs now available. The RCD 820BX has all the features of the RCD 820B, plus an additional regulated high quality power supply with an independent transformer to give clean power rails to the D/A converters and an exclusive Rotel's twin two stage analogue filter circuitry. Effectively removing the digital hash from the audio circuits, resulting in a much cleaner audio signal with significant benefits of greater definition, resolution and musical enjoyment.
Frequency Response:  20 -20,000 Hz ±0,08 dB
Dynamic Range:  96 dB
Signal-to-Noise Ratio:  100 dB
Channel Separation:  100 dB
Total Harmonic Distortion:  0,0025% (20-20,000 Hz)
Wow and Flutter:  Quartz crystal precision
D/A Conversion:  Four times oversampling (176,4 kHz) with digital filter and two 16 bit D/A converters
Error Correction System:  Cross interleaved reed solomon code (CIRC)
Audio Output Level:  2 volts RMS
Power Requirements:  120 V, 60 Hz; 220V, 50 Hz, or 240 V , 50 hzz
Dimensions (W x H x D):  440 x 87 x 300 mm
Weight:  5,0 kg

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