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

Sharp DX-500

 Sharp DX-500H
Advanced Compact Disc Digital Audio Player:
3-way Search System,
Programmable Operation,
LED Display for Disc Information.

A Breathtaking Advance In Digital Audio Entertainment
A masterpiece of advanced digital audio design, the Sharp DX-500H Cd Audio player. Remarkable music precision and stunning operational sophistication are combined in one streamlined unit. A DC servo amplifier is used for the analogue part of the audio system and an aluminium die cast chassis is used for the mechanism to ensure high quality sound and stable playback. In addition to the improvements in audio quality and operational ease. Sharp has succeeded in bringing you the ultimate music playback freedom – a comprehensive array of programming and search capabilities. The DX-500H, the second digital marvel from Sharp, leads the new age of audio.
 Boasting a range of innovative audio features, the DX-500H delivers pure noise-free music never achieved with ordinary analogue players.
Error-correction system: The system compensates for dropout signals caused by disc defect or scratches, replacing digital signals to ensure optimum playback performance.
DC servo amplifier: Digital sound quality depends on analogue system of the player. The DC servo amplifier in the analogue system ensures flat frequency response, improved S/N ratio and remarkable low distortion.
Aluminium die cast chassis: Strong die-cast horizontal chassis eliminates mechanical vibration to maintain high sound quality.
Focusing servo system: The system balances disc-lens distance, to keep laser beam focused precisely on the disc surface.
Tracking servo system: Sharp's laser system is designed along innovative lines to give extra-precise tracking performance. Minutely-designed servo circuits ensure constant, accurate positioning of the laser while aluminium die-cast frame reduces mechanical vibration for optimum disc reading.
3-way serach system and programmable operations
Create your own music format: AMPS (Automatic Programmable Music Selector) lets you randomly select 15 of your choices from the disc’s 20 selections and program them in any order you like. Locate the music you want quickly and easily with APLD (Auto Program Locate Device) while APSS (Auto Program Search System) skips forward to locate the beginning of the current selection. You can enjoy immediate repeat play of an individual song or the entire disc with convenient repeat function.
Combined with APMS, this function allows you to listen to an entire programmed selection of music over again.
 The combination of Sharp's DX-500H CD player and PCM Technology enables live performance digital-age music never before achieved with ordinary analogue equipment. Dynamic range of 97 dB, wow and flutter too low to be measured, channel separation of 97 dB. It's all yours with the Sharp DX-500H.

The pick-up of the player requires pinpoint precision to read each tiny signal accurately. The DX-500H equipped with advanced, high-performance semiconductor laser diode technology features a state-fo-the-art laser pick-up system.

Time counter with 4-digit LED display: Times disc playback and gives you constantly changing disc playback time information with an easy-to-read 4-digit LED display. Synchronized with fast forward and rewind operations, the counter enables you to lackate any part of the disc swiftly and accurately.

20 LED indicators: Accurate disc information including the number of selections, programmed pieces and selection currently playing is available from these indicators.

Drawer-type front-loading disc table: With a touch of a button on the front panel, the disc table slides out. Just place the disc on the disc table and press the same button again and it slides in for playback. Operation is simple and accurate.

Headphone socket: For sophisticated private listening. With headphones connected the DX-500H provides the excitement of digital audio without disturbing anyone else.
Audio Section
Number of Channels:  2-channels Stereo
Frequency Response:  5 - 20,000 Hz ±0,5 dB
Dynamic Range:  97 dB
Total Harmonic Distortion:  0,003% (at 1 kHz)
Wow and Flutter:  below measurable levels
Level Fluctuation:  below measurable levels 
Crosstalk:  97 dB (at 1 kHz)
Error Correction:  CIRC (Cross Interleave Reed-Solomon Code)
Line Out :  2,2V/10 k Ω
Headphones :  48 mW/8 Ω
Disc Section:
System Format:  Compact disc system
Outer Diameter:  120 mm
Inner Diameter:  15 mm
Track Pitch:  1,6 µm
Playing Time:  approx. 60 minutes
Sampling Frequency:  44,1 kHz
Quantization:  16-bit linear
Modulation:  EFM
Power Source:  Ac 110/220/240 V, 50/60 Hz
Power Consumption:  40 W
Dimensions (W x H x D):  330 x 104 x 345 mm
Weight:  8,5 kg

Nessun commento:

Posta un commento