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





Harman Kardon HD 7300

 Features:
18-bit linear D/A conventer
Fully discrete analog output section with 12 separate transistors and 6,400 µF of power supply storage.
4 separate power supplies for digital, analog, transport, and display.
3-beam optical laser pickup.
Program memory.
Audible 2-speed cue and review.
Display: track number/ elapsed time/ program number, or total number of tracks/ total time/ time remaining.

Specifications
System:  Compact Disc Digital Audio
D/A Conventer:  Linear, 18-bit; 4x Oversampling (176,4 kHz)
Signal Detection:  3-beam semiconductor optical laser pickup
Error Correction:  CIRC system
Low level Linearity:  -80 dB (±1 dB)
Frequency Response:  4 Hz - 20 kHz (+0 dB, -1,5 dB)
Total Harmonic Distortion:  0,009%
Dynamic Range:  96 dB
Signal-to-Noise Ratio:  100 dB
Channel Separation:  88 dB
Line Output Level/Impedance:  2,0 V at 10 k Ω
Digital Output Level/Impedance:  none
Power Consumption:  15 watts
Dimensions (W x H x D):  443 x 103 x 328 mm (17-3/8" x 4" x 13")

Weight:  5,0 kg (11 lb)

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