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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





Philips CD 204


Specifications CD 204
System:  Compact Disc Digital Audio System
Number of Channels:  2
Frequency Range:  20 - 20,000 Hz ±0,3 dB
Audio Output Level:  2 V rms
Output Impedance:  100 Ω
Channel Difference:  0,3 dB
De-emphasis:  0 of 15/50 µs
Total Harmonic Distortion:  0,005%
Intermodulation Distortion:  0,005%
Signal-to-Noise Ratio:  90 dB
Laser:  Semi-conductor AlGaAs
Wave Length:  800 nm
Sampling Frequency:  44,1 kHz
Quantization:  16 bit linear/channel
Disc Diameter/ Thickness:  120mm / 1m2 mm
Power Supply:  110 V, 127 V, 220 V, 240 V,  50/60 Hz
Power Consumption:  30 W approx.
Dimensions (W x H x D):  420 x 92 x 300 mm

Weight:  7 kg
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