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





Technics SL-P10


 Pure music reproduction. With no audible noise or distortion. We call it the essence of nothingness. After a decade-long commitment to digital audio technology, Technics offers you one different Compact Disc player that capture this essence.

Like a live performance
Each CD player uses our unique semiconductor laser to read the billions of bits of information encoded on the Compact Disc as it is spun with incredible accuracy by our quartz-locked, direct drive motor. Powerful new Ics, LSIs and a microprocessor-controlled D/A (digtal-to-analog) conventer, all original designs by technics, process the information into music - so realistic and dynamic as to be virtually indidtinguishable from a live performance.
 A choice of CD players
Our original and still state-of-the-art. CD player, the SL-P10, offers the unequaled versatility of 63-step random acces programming for precise play of any part of the disc, in any sequence, and features the convenience of remote control, headphone jack, and Auto-Music-Scan.

We make the discs  too
A superior CD player can only be built upon a complete understanding of the Cd itself. So, we make the discs too. Only Technics produces both Cd players and CDs under one roof.
Technics - We put pure music within the reach of everyone.
Features and Functions
Intro-skip plays first few seconds of each song, so you can easily check disc contents
Repeat function for entire disc or program contents
Pickup position indicator in disc holder section (as well as in FL display)
Control key indicators
Handsome design to match other Technics high quality audio components
Automatic disc loading
Variable output level audio signal
Search functions:  Manual;  Auto music search;  Intro-skip;  Program
Program capability: 
Maximum 63-step programmability;  Band cueing,
Random begin play setting (band, minute/second); 
Random end play setting (band, minute/second); 
Display (140 x 55 mm) large FL display;
Pickup position, Band beginning position, Program, Band number, Playing time
Control keys:  7 basic keys; 14 programming keys

Disc loading:  Automatic front loading
 Advanced Original LSI Circuitry
The SL-P10 features true state-of-the-art. Semiconductor circuitry with 12 new original LSIs and ICS designed specifically for compact disc reproduction. The digital signal processing circuitry uses 3 LSIs for demodulation, error correction and CIRC control. Error detection and correction are based on the exclusive "technics Super Decoding Algorithm" system. The D/A conventer is perhaps the single most important device in digital audio. It must convert the 65536-step digital signal into an accurate replica of the original analog signal. Here the SL-P10 uses a newly developed that delivers extremely high performance with no more than ±0,002% nonlinear distortion. Other Ics are used for spindle motor servo control, head amp, actuator drive, auto focus, signal processing, programmed play, laser power control, and traverse motor drive.
 Precision Mechanisms with Sophisticated Microcomputer Control
In addition to the above mentioned high density LSIs and ICs, the SL-P10 employs four microcomputers for centralized random access system control, FL display drive, digital slicer, and optical pickup position control. This sophisticated circuitry supports the precision mechanisms of disc rotation and laser pickup operation.
The pickup system includes a semiconductor laser, actuator, lens, prism and photodetector in a precision integrated aluminum body of rugged construction for the highest reliability.
The actuator (lens drive mechanism for focus and tracking) features a twin parallel damper, derived from our advanced phono cartridge technology, which enables extremly smooth and accurate focusing and tracking servo performance. A 3-beam tracking servo is employed to assure the highest operational stability.

The 12 cm wide CD rotates at a tare of 500 to 200 times per minute. Therefore the turntable drive motor must be of a different type from that used for conventional phono turntables.
One important point is that the motor must be designed to prevent shaft rolling. This is achieved by employing an ultra-compact brushless DD motor newly developed based on the long experience of Technics id direct drive technology.
In the SL-P10 CD player system, this DD motor and the turntable are mounted extremely close together to assure the required rotational stability.
The pickup, its drive mechanism, and the turntable drive mechanism must all be assembled together with the highest precision. In the SL-P10 , all of these mechanisms are manufactired by us, making possible precision integrated construction of an "optical deck" in an aluminum diecst chassis. This keeps all these precision electromechanical devices in optimum alignment to bring out their full potential and that of the system as a whole.
Specifications
Type: 2-channel Compact Disc Plaeyer
Samplig Frequency:  44,1 kHz
DA Conversion:  16-bit linear line
Frequency Characteristic:  4 Hz - 20 kHz
Dynamic Range:  better than 90 dB
Signal-to-Noise Ratio:  better than 90 dB
Total Harmonic Distortion:  less than 0,004%
Channel Separation:  better than 90 dB
Error Correcting System:  Super decoding algorithm by Technics
Wow and Flutter:  same as Quartz-crystal oscillator precision
Pickup System:  Astigmatic  3-beam
Objective Lens Suspension:  Twin parallel damper suspension
Light Source:  Semiconductor laser
Wavelength:  8000 A
Output Voltage:  A 150 mV (variable)
Power Requirement:  100, 120, 220, 240 V,  AC , 50/60 Hz
Power Consumption:  48 W
Dimensions (W x H x D):  430 x 145 x 333mm
Weight:  10 kg

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