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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





Visualizzazione post con etichetta SHARP. Mostra tutti i post
Visualizzazione post con etichetta SHARP. Mostra tutti i post

Sharp RT-2266 cassette deck

Solenoid touch. APLD search. Metal tape compatible, soft, easy and dynamic.

Front-loading stereo cassette deck with Dolby Noise Reduction and featuring the Auto Program Locate Device (APLD), soft-touch solenoid transport and metal tape capability.

 

Exclusive Auto Program Locate Device (APLD) for pushbutton location of any selections forward or backward.

Two-motor drive system reduces Wow and Flutter and assures outstanding speed stability.

Microprocessor solenoid cassette controls for selection of tape transport mode, recording and auto spacing functions.

Metal tape selector switch for optimum performance from metal tapes,

Individual bias and equalization switches assure optimum response from CrO₂/Fe-Cr/Normal tapes

Easy-to-read Sharpscan peak level display with peak hold function for more accurate and reliable recording level adjustments.

Output level control to match the signal from cassettes to other sound sources in your stereo system

PP (Permalloy Plus) record/playback head developed to ensure greater wear resistance and optimum audio performance with metal as well as other tapes

Double-gap ferrite erase head creates a stronger magnetic field for more thorough erasing

Automatic end-of-tape shut-off in any mode to protect tapes

Illuminated indicators show operating mode at a glance

Electronically-controlled DC capstan motor for absolute speed stability and low Wow and Flutter

Auto spacing mechanism for creating non-signal segments between musical selections.

Pause control for instant, non-blurring tape start-up after editing.

Front-panel inputs for stereo headphones and microphones

Individual level controls for Line and Mic mixing.

Digital tape counter for instant tape location reference

Illuminated tape compartment for visual tape checking.

 


Specifications

Number of Tracks: 4-track 2-channell stereo

Recording System:  AC bias (105 kHz)

Erase System:  AC erase (105 kHz)

Tape Speed:  1-7/8 ips (4,8 cm/s)

Wow and Flutter:  0,045% WRMS

Frequency Response:

Normal Tape :  25 - 15,000 Hz (30 - 14,000 Hz ±3 dB)

CrO₂ Tape : 25 - 17,000 Hz (30 - 16,000 Hz ±3 dB)

Fe-CR Tape : 25 - 18,000 Hz (30 - 17,000 Hz ±3 dB)

Metal Tape :  25 - 19,000 Hz (30 - 18,000 Hz ±3 dB)

Signal-to-Noise Ratio (CrO₂ Tape )

Dolby NR Off :  57 dB

Dolby NR On :  67 dB (at over 5 kHz)

Tape: Standard cassette tape

Motor:  Electronically-controlled DC Motor

Heads: 

Record/Playback :  Permalloy Plus

Erase :  Double Gap Ferrite

Input Sensitivity

Microphone :  0,2 mV (-74 dB) / 6,8 k Ω

Line-In :  50 mV (-26 dB) / 70 k Ω

Output Level/Impedance

Line -Out :  500 mV/47 k Ω  (at 0 dB)

Headphone :  63 mV/8 Ω  (at 0 dB)

Power Requirements:  AC 120 V 60 Hz

Power Consumption:  40 W

Dimensions (W x H x D):  430 x 144 x 260 mm (16-15/16" x 5-11/16" x 10-1/4")

Weight:  7,3 kg (16,1 lbs)


 

Sharp RT-1199 cassette deck

Front-loading stereo cassette deck.

The convenience of APLD. The quiet of Dolby NR. The range of metal tape.

Features:

Exclusive Auto Program Locate Device (APLD) with illuminated indicator

Easy-to read Sharpscan peak level display that promises greater accuracy and reliability for more confident recording level adjustments

Metal tape selector switch for optimum performance from metal tapes

Individual bias and equalization switches to optimize performance with CrO₂/Fe-Cr/Normal tapes

PP (Permalloy Plus) record/playback head developed to ensure greater wear resistance and optimum audio performance with metal as well as other tapes

Double-gap ferrite erase head creates a stronger magnetic field for more thorough erasing

Automatic end-of-tape shut-off in any mode to protect tapes

Improved electronically controlled DC motor for absolute speed stability and low Wow and Flutter

Mechanical pause control for instant, non-blurring tape start-up after editing

Individual level controls for Line and Mic mixing

Outputs level control to match the signal from cassettes to other sound sources in your stereo system

Front-panel jacks for stereo headphones and microphones

Illuminated tape compartment for visual tape checking

LED recording and Dolby NR indicators

Digital tape counter for instant tape location reference

 


Specifications

Number of Tracks: 4-track 2-channell stereo

Recording System:  AC bias (105 kHz)

Erase System:  AC erase (105 kHz)

Tape Speed:  1-7/8 ips (4,8 cm/s)

Wow and Flutter:  0,058% WRMS

Frequency Response:

Normal Tape :  30 - 15,000 Hz (40 - 12,500 Hz ±3 dB)

CrO₂ Tape : 30 - 16,000 Hz (40 - 13,000 Hz ±3 dB)

Fe-CR Tape : 30 - 16,000 Hz (40 - 13,000 Hz ±3 dB)

Metal Tape :  30 - 18,000 Hz (40 - 16,000 Hz ±3 dB)

Signal-to-Noise Ratio (CrO₂ Tape )

Dolby NR Off :  57 dB

Dolby NR On :  67 dB (at over 5 kHz)

Tape: Standard cassette tape

Motor:  Electronically-controlled DC Motor

Heads: 

Record/Playback :  Permalloy Plus

Erase :  Double Gap Ferrite

Input Sensitivity

Microphone :  0,2 mV (-74 dB) / 6,8 k Ω

Line-In :  63 mV (-24 dB) / 50 k Ω

Output Level/Impedance

Line -Out :  710 mV/50 k Ω  (at 0 dB)

Headphone :  89 mV/8 Ω  (at 0 dB)

Power Requirements:  Ac 120 V 60 Hz

Power Consumption:  18 W

Dimensions (W x H x D):  430 x 144 x 245 mm (16-15/16" x 5-11/16" x 10-3/8")

Weight:  6 kg (13,2 lbs)


 

Sharp RT-10 cassette deck

Front-loading stereo cassette deck

Metal tape dynamism plus LED peak level display precision

Outstanding features:

Metal tape selector switch for optimum performance from metal tapes

Easy-to-read 10-LED peak level display that assures more accurate and reliable recording level adjustments

Bias and equalization switch to optimize performance with CrO₂/Normal tapes

New hard permalloy head for extended high frequency response

Dolby Noise Reduction cuts tape hiss and improves Signal-to-Noise Ratio by up to 10 dB at over 5 kHz

Automatic end-of-tape shut-off in any mode to protect tapes

Electronically-controlled DC motor for absolute speed stability and low wow and flutter

Line/Mic input selector switch in rear for live recordings or dubbing from records or radio

Mechanical pause control for instant, non-blurring tape star-up after editing

Digital tape counter for instant tape reference

Dolby is a trademark of Dolby Laboratories

 


Specifications

Number of Tracks: 4-track 2-channell stereo

Recording System:  AC bias (105 kHz)

Erase System:  AC erase (105 kHz)

Tape Speed:  1-7/8 ips (4,8 cm/s)

Wow and Flutter:  0,09% WRMS

Frequency Response:

Normal Tape :  30 - 14,000 Hz (40 - 12,000 Hz ±3 dB)

CrO₂ Tape : 30 - 16,000 Hz (40 - 13,000 Hz ±3 dB)

Metal Tape :  30 - 16,000 Hz (40 - 14,000 Hz ±3 dB)

Signal-to-Noise Ratio (CrO₂ Tape )

Dolby NR Off :  52 dB

Dolby NR On :  62 dB (at over 5 kHz)

Tape: Standard cassette tape

Motor:  Electronically-controlled DC Motor

Heads: 

Record/Playback :  New hard permalloy

Erase :  Ferrite

Input Sensitivity

Microphone :  0,2 mV (-74 dB) / 6,8 k Ω

Line-In :  50 mV (-26 dB) / 50 k Ω

Output Level/Impedance

Line -Out :  580 mV/50 k Ω  (at 0 dB)

Headphone :  40 mV/8 Ω  (at 0 dB)

Power Requirements:  Ac 120 V 60 Hz

Power Consumption:  7 W

Dimensions (W x H x D):  390 x 125 x 226 mm (15-3/8" x 5" x 8-7/8")

Weight:  3,2 kg (7 lbs)

Sharp RT-3500C cassette deck


Stereo Cassette Deck with Dolby Noise Reduction and APFS system

Sharp's  newly developed unique Auto Program Find System.

Sharp's developed unique APFS finds the cue of every musical selection (non0signal part) on a music recorded tape. When the fast forward button is pushed while operating with the APFS switch ON, the tape stops at the beginning of the next musical selection automatically. When the rewind button is pushed while operating with the APFS switch ON, the tape returns to the beginning of the music and stops automatically. The APFS is ideal for the following purposes: When you want to select only a desired selection of music  on a recorded music tape; When you want to select the next musical selection during playback; When you want to repeat the same music..

Ultra-hard, High-quality MCF head

Long-life with excellent durability against abrasion is assured through employment of a strictly selected high density ferrite head; keeps efficiency semipermanently without deteriorating characteristics during long periods of use. Ideal shape and mirror finishing produced by a unique polishing technique assure extra smooth head surface. Produces steady high range characteristics, non-fluctuating low range characteristics and wide dynamic sound range. Also assures recording and playback with high grade sounf quality. Moreover shuts out external induction thanks to front shield structure.

Automatic changeover system for detecting CrO₂ tape

When a CrO₂ tape with additional sensing holes situated next to the breakout lug holes is inserted into the cassette chamber. Bias and Equalizer can be set automatically to the correct characteristics in recording and playback mode. Therefore, no manual operation of the CrO₂ tape selector switch is required. When using CrO₂ tapes of the old standard type, the CrO₂ tape selector must be used.

Dolby Noise Reduction System

The Dolby NR system is employed in the RT-3500C for reducing hiss noise. The noise reduction effect of the Dolby system, for example, is 10 dB at around 10 kHz. So annoying hiss noise doea not affect listening enjoyment. Thus, the Dolby system not only improves Signal-to-Noise Ratio , but correct cross modulating distortion remarkably, and assures unsurpassed quality stereo sound reproduction.

DC Servo Motor for Stable Rotation

The DC Servo Motor is employed for stable rotation in the unit. Assures recording and playback enjoyment without worrying about noise caused by vibration. Wow and Flutter and Power consumption are also reduced.

 

Specifications

Type: AC operated Solid-State, 4-track, 2-channel Stereo Cassette Tape Deck with built-in Dolby Noise Reduction System and APFS (Auto Program Find System)

Tape Speed:  1-7/8 ips

Track:  4-track2-channel stereo

Motor:  DC servo motor

Heads:

Record/Playback : MCF - Microcrystaline Ferrite head

Erase :  Ferrite head

APFS :  Sensing head

Input jack:

Microphone :  0,1 mV/500 Ω

Line (Two) :  50 mV/85 k Ω

Output jacK

Line (Two) :  410 mV (0 VU)/50 k Ω

Headphones :  1 mV (0 VU)/8 Ω

Bias System:  AC bias

Erase System:  AC erase

Bias Frequency:  84 kHz

Level Indication:  VU meter , LED 2-colored LED peak level indicator

Wow and Flutter:   0,13% WRMS

F.F. and Rewind Time:  75 sec for C-60 cassette

Frequency Response:

CrO₂ Tape :  45 - 15,000 Hz ±3 dB

Normal tape :  45 - 13,000 Hz ±3 dB

Signal-to-Noise Ratio

58 dB (Dolby noise reduction "ON")

52 dB (Dolby noise reduction "OFF")

Distortion:  1,5% at 0 VU

Semiconductors:  4 ICs; 6 Transistors plus 21 Aux transistors; 41 Diodes, 1 LED, 1 SCR

Power Source:  AC 120 V, 60 Hz

Power Consumption:  18 W

Dimensions (W x H x D):  16-7/8" x 4-1/2" x 10-9/16"

Weight :  12 lbs

Sharp RT 2500 cassette deck

Stereo Cassette Deck with Dolby Noise Reduction System

Every sound in the RT-2500 is shaped just the way you like it. The unique CrO₂/Normal tape selector switch utilizes all CrO₂/Normal tape charateristics. It brings out the best in high densitiy recording and assures unsurpassedS/N ratio.the newly developed 2-colored LED peak level indicator shows you exactly when the peak recording level is reached, and also indicates the proper recording level. So easy and so convenient. But that's not all. The built-in Dolby Noise Reduction system eliminates the last trace of undesirable hiss noise caused by magnetic substancies. And the Full Automatic Stop mechanism disengages the drive mechanism automatically when the tape reaches an end. A truly feature packed stereo cassette tape deck.
Specifications
Type: AC operated Solid-State, 4-track, 2-channel Stereo Cassette Tape Deck with built-in Dolby Noise Reduction System
Tape Speed:  1-7/8 ips
Track:  4-track2-channel stereo
Motor:  DC servo motor
Heads:  Long life ultra-hard permalloy haead for Rec/Play
Ferrite head for Erase
Input jack:
Microphone :  0,1 mV/600 Ω
Line :  50 mV/85 k Ω
Output jacK
Line :  410 mV/50 k Ω
Headphones :  90 mV/8 Ω
Bias System:  AC bias
Erase System:  AC erase
Bias Frequency:  84 kHz
Level Indication:  VU meter , LED 2-colored peak level indicator
Wow and Flutter:   0,13% WRMS
F.F. and Rewind Time:  75 sec for C-60 cassette
Frequency Response:
CrO₂ Tape :  45 - 14,000 Hz ±3 dB
Normal tape :  45 - 12,000 Hz ±3 dB
Signal-to-Noise Ratio
58 dB (Dolby noise reduction "ON")
52 dB (Dolby noise reduction "OFF")
Distortion:  1,5% at 0 VU
Semiconductors:  4 ICS; 6 Transistors plus 16 Aux transistors; 35 Diodes, 1 LED, 1 SCR
Power Source:  AC 120 V, 60 Hz
Power Consumption:  18 W
Dimensions (W x H x D):  16-7/8" x 4-1/2" x 10-1/2"
Weight :  13 lbs

Sharp RT-1157C tape deck


Front-Loading Stereo Cassette Tape Deck withSharp's Exclusive APSS
A great addition to any stereo component system, this front-loading stereo cassette deck offers a marvelous combination of superior performance, wide versatility and extra convenience with its Dolby Noise Reduction system, narrow-gap Permalloy head, independent bias and equalization switches and APSS device.

Performance and Features
Sharp's exclusive Auto Program Search System (APSS) for instant location of musical selections
Dolby Noise reduction system improves S/NRatio by 10 dB
Rapid-action, professional style VU meters for precise monitoring during recording
LED peak level indicator helps prevent overload distortion during recording
Individual bias and equalization switches to optimize performance with CrO₂, Fe-Cr and normal tapes
Narrow-gap Permalloy head (1,5 microns) for extended high frequency response
Full auto-stop mechanism to protect tapes and transport mechanism
Electronically controlled DC motor for extra speed stability and minimal wow and flutter
Mechanical pause control for instant, non-blurring tape start-up after aditing
Line/Mic input selector switch for improved recording S/NR
Front panel inputs for stereo headphones and microphones
Illuminated tape compartment for visual tape check
Digital tape counter for instant tape reference
CSA certified

Specifications
Type:  4-track, 2-channel stereo cassette tape recorder/player deck with built-in Dolby noise reduction system
Semiconductors:  23 Transitors; 15 Diode; 4 Ics; 3 LED
Input Circuitry: 
Microphone Jacks :  6,8 k Ω
Line Input Jacks :  50 k Ω
Rec/Pb Socket :  6,8 k Ω
Output Cicuitry:
Headphones jack :  8 Ω
Line Output Jacks :  50 k Ω
Rec/Pb Socket :  50 k Ω
Tape:  Philips standard compact cassette tape
Tape Speed:  4,8 cm.sec (1-7/8 ips)
Recoding System:  AC bias system (85 kHz)
Erasing System:  AC erasing
Fast Forward and Rewind:  100 sec. (C-60 tape)
Woa and Flutter:  0,2% [DIN] 0,09% WRMS
Frequency Response:
Normal Tape
Sharp C-60 UD :  40 - 12,500 Hz (DIN 45 511), 40 - 12,500 Hz ±3 dB
Maxelle C-60UDXL II :  40 -14,000 Hz (DIN 45 511) 40 - 14,000 Hz ±3 dB
Signal-to-Noise Ratio:  52 dB (for Normal tape, at Line IN, without Dolby NR system)
Dolby NR Effect:  10 dB (at over 5 kHz)
Distortion:  1,5%
Channel Separation:  35 dB
Erase Ratio:  65 dB
Input Sensitivity and Input Impedance:
Microphone :  0,2 mV/6,8 k Ω
Rec/Pb Socket :  0,2 mV/6,8 k Ω
Line In :  63 mV/50 k Ω
Output Level Load Impedance:
Headphones :  63 mV/8 Ω
Rec/Pb :  500 mV?50 k Ω
Line Out :  500 mV/50 k Ω
Power Source:  Ac 110, 220, 240 V; 50/60 Hz
Power Consumption:  13 W
Dimensions (W x H x D):  408 x 158 x 252 mm (16-1/16" x 6-1/4" x 9-15/16")
Weight:  6 kg (13,2 lbs)


I like

Sharp Optonica ST-3636


Optonica ST-3636 features:
FM IF AMP. Section
FM Front-End Circuit
FM IF  Band with Selector Circuit
FM Tuning Auto-Lock Circuit
FM Detection Sections (Quadrature Detector Circuit)
Hi-Blend Circuit
Low-Frequency Amplifier Circuit
Power Supply Circuit
Audio Muting Circuit

FM Detector Circuit. This unit employs "Quadrature Detector" based on newly developed IC, which is substituted for ratio detector and Foster-Seeley's detector that have been sp far used. The basic structure of quadrature detector circuit is as shon.


Multipath Detection Circuit
Multipath Distortion. In any of electric-wave signals broadcasting including FM waves, it would be ideal if the signals emitted by abroadcasting station were caught by a receiver's antenne as they midway. Actually saying, however, there are practically some obtacles (like mountains and  skyscrapers, etc.) between the transniter side and the receiver side, which have the emitted signals undergo a phenomenon of waves reflection, leading to that the signals become distored variously when caughtby the receiver's antenna
A simple exampleconcering this distortion is that in the mountainous area or large cities full of higher buildings, the TV stes get produced images be doubled (this called a ghost). This phenomenon is a sort of multipath distortion and it is caused by the there is a time delay betweenthe direct waves and reflected waves. In the case of radio sets, this is reffed to as that the reproduced sounds contain distortions; particularlyas for stereo broadcasting signals, since their band width is rather wider and so they are apt to be interferred by various objects, not only the distorted sounds are produced but also the stereo separation characteristics will suffer. These phenomena are named a multipath distortion.

Multipath Distortion Detection. Multipath distortion are classified into the two, that is, phase distortion which is found out by the frequency discriminator and AM distortion which is removed by the limiter circuit; the latter AM distortion is actually subject to detection by the multipath detector circuit.


FM Stereo Demodulator Section
Features of PLL Stereo demodulator Circuit.
This set incorporates a stereo demodulator circuit that comprises ICs with the PLL (Phase Locked Loop) system applied. The PLL FM demodulator circuit is provided with such characteristics as mentioned  below.
In order to demodulate stereo composite signals, it is necessary to take a 19 kHz pilot signal out of the stereo composite signals and to make it a 38 kHz signal.  Most of the conventional methods to obtain such a 38 kHz signal are frequency doubling ones which utilize a nonlinearity of the elements. Compared with the conventional type, the recently developed IC-ed demodulator provides more sufficient separation effects.  However, since it also requires 2 or 3 coils like the conventional one, if even one of them is dislocated from the initially adjusted point due to a secular change the separation effects will be deteriorated. Moreover there is such a contradiction that the more the efficiencies of the coils are increased enough to withstand the outer pulse signals like automobil ignition noises, the more the coils suffer secular changes.
To eliminate such disadvantages as above, PLL system is employed in the method to make a 38 kHz signal using a 19 kHz pilot signal.

Variable Air Check Calibrator Circuit
Theis circuit is to make appropriate the recording level in advance when recording FM broadcast into the tape deck or equivalent.
The circuit  is reffered to as this variable air check calibratoe circuit and it is composed of an air check oscillator circuit, air check meter indication circuit and further a circuit by which, when the air check/muting switch is set to 'air check on' position during FM reception, the indication mode of the signal/air check meter will be changed from 'signal level' to 'air check level' indication.

Specifications
FM Section
Tuning Range:  87,6 -108 MHz
IF:  10,7 MHz
Sensitivity (at SN 26 dB, 40 kHz deviation):  1,4 µV
Frequency Response:  30 - 15,000 Hz +1,5 -3 dB
Image Rejection:  110 dB (at 98 MHz)
IF rejection:  100 dB (at 98 MHz)
Selectivity [normal/wide]:  72 dB / 30 dB
Capture Ratio [normal/wide]:  2,5 dB / 1,5 dB
AM Suppression:  45 dB
Signal-to-Noise Ratio:  65 dB (40 Hz deviation)
Distortion [normal/wide]
Mono :  0,6% / 0,25%
Stereo:  0,8% / 0,4%
Stereo Separation:  42 dB (1 kHz)
AM Section
Tuning Range:  520 - 1620 kHz
IF:  455 kHz
Quieting Sensitivity:  400 µV/m
Image Rejection:  55 dB (at 1400 kHz)
IF Rejection:  50 dB (at 600 kHz)
Distortion:  1,5%
Audio Section
FM Output Voltage
Variable : 0 - 0,55 V
Fixed :  0,35V
AM Output Voltage:
Variable :  0 - 0,35 V
Fixeed :  0,2 V
Circuit:  Superheterodyne system, 2-band with PLL stereo demodulator
Featured:  FM muting, FM multipath detection, variable air check calibrator, FM auto lock, FM IF band selector circuit
Semiconductors:  28 Transistor, 36 Diode (1-zener diode); 4 ICs, 3 FET (dual gate, MOS type); 3 LED
Power Source:  AC 110/220/240V, 50/60 Hz
Power Consumption:  24 W
Dimensions (W x H x D):  442 x 144 x 373 mm
Weight:  7,5 kg

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.
Specifications
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)
Impedance:
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
General:
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