Audio Database Pioneer PD-T09 360,000yen(1992 release) Description 　 The compact disk player which carries legato linking conversion in addition to compact-disk turntable scheme. It asks for natural compact-disk play near a more nearly original music signal, and legato linking conversion is carried. A music signal is caught on a time base, it is what considered connecting a music signal data smoothly in time, and the signal currently recorded on compact disk is connected with legato linking conversion to origin using the function curve set up approach an original music signal. This has obtained the wave near an original music signal with few ringings. By realizing the waveform transmission excellent in this impulse response, the frequency component of 20kHz or more according to a 1/f damping characteristics will also be reproduced, and the soft natural music play is enabled. compact-disk turntable mechanism which moved the pickup and the spindle motor upwards is adopted as a mechanism part. This is enabled to hold a disk the whole surface from the bottom, and the unnecessary oscillation is suppressed low. The moment of inertia of the turntable became 3 times compared with the conventional scheme, is strong also to a load variation and has realized the stable rotation performance. The high speed pulse flow digital analog converter of original development is adopted as a digital analog converter. In this digital analog converter, the re-quatization noise is low-ized by operating a noise shaper on a high oversampling frequency called 384fs. Moreover, since a noise shaper degree can also be used by the sub- and a low degree by having raised the oversampling frequency, the influence on the tone quality resulting from an out-of-band noise, an analog low pass filter, etc. is suppressed. Furthermore, the influence of a Jitter is low suppressed in operating a master clock with a clock frequency as low as 16.93MHz. Moreover, since this digital analog converter has raised the duty which is a timing ratio of on/off of a 1-bit output from 50% to 100% and an Output voltage becomes twice by this, the audio output of the high SN ratio and the low distortion is obtained. The proprietary clean laser pickup is adopted as a pickup. In this pickup, by reduction of optical components, reduction of the aberration in an optical path, etc., the laser efficiency ratio was raised and signal reading of a low distortion is realized. Furthermore by adoption of a photodetector with built-in I/V head amplifier, or adoption of an Accu Focus system, a reading error and the influence of a Jitter are reduced. Moreover, the pickup body has adopted the highly precise engineering pickup body. Class-A operation FET buffer amplifier is adopted as an audio circuitry, and the influence of the load intensity of the equipment connected by low-power-output impedance-ization etc. is suppressed low. Furthermore, the variation of the power consumption at the time of an operation could be reduced by Class-A operation, and the low distortion is realized. In order to carry out thorough exclusion of the oscillation and vibration which have an ill effect on a tone quality, the newly developed acoustic shell construction is adopted and rigidity has become what was highly excellent in the vibration proof by using form roundish like a shell. The protein coating is given in the shell form where R with the loose under base at the bottom was attached. This shell form has an effect which diffuses the sound pressure of the interior and the exterior, is also forming the sub- chassis of a mechanism upper portion, and both side panels into shell form, and has eliminated the parallel side which is easy to generate a stationary wave as much as possible. Furthermore, the under base has a two-sheet structure and has a firm structure which allots the 2mm thickness griddle which gave the copper plating through the beam by 20mm thickness aluminum extrusion material on the under base at the bottom. A space is secured between the under bases of two more sheets, and the direct construction which is making it connect with the audio substrate of a upper curtate from the latest through the product-line material from the power transformer for audios downward, and shortest-izes a signal path is also pursued. Moreover, the insulator has also adopted the shell type insulator of metals shaving appearance, and is absorbing the extraneous vibration. A digital & servo, an analog, and three transformers of a digital-analog-converter independency are carried. Furthermore, 6 part 15 regulator was employed, it separated into six parts of + of a digital & servo, a servo drive, a digital analog converter, and an audio, -, and function logic diagram, and the power circuit has eliminated the cross interferencee. The newly developed discrete stream-composition power source is adopted as an audio circuitry. Moreover, the influence from other power sources is eliminated from the exclusive transformer using a rectifier circuit and the stabilized power source of a right-and-left independency to digital analog converters. A servo driving power supply is also using the digital output as the exclusive power source while it makes it become independent the object for turntables, and for [ other ] a drive and attains a stabilization. The brushless hall motor of starting torque 65 g-cm is adopted as the spindle motor supporting a turntable scheme. phi4.5mm very-thick shaft and the rotation performance conjointly stabilized in a load variation strongly are realized. Moreover, the pickup is driven by the silence linear motor servo mechanism, and has realized the rapid access. In order to tell an oscillation to neither a substrate nor a power-source part, no vibrating and absent-resonance-ization of a disk-drive mechanism are put into practice. The whole mechanism is covered and the adoption of a silence chassis which improves a vibration proof is begun,The unnecessary oscillation from an inside-and-outside part, such as piling up two heterogeneous metalses, and the lamisert Mechanism-base which carried out molding by the special resin, and also the turntable base carrying out mechanism-chassis mounting through a coaxial suspension, and making them into a double float structure, is reduced. The balance output which cannot be easily influenced by an exogenous noise is carried. The polar attached-indicator OFC4 core power cord which divided the cable into the digital & servo and only the analog is adopted. The aluminum panel stabilizer which improved rigidity and a vibration proof is adopted. The display-deviceoff switchpoint which prevents a scanning noise is carried. Moreover, the clean microcomputer is carried (backup correspondence). Digital one / analog circuit changing switch is carried (backup correspondence). The non-magnetic-material gilding RCA output jack is adopted. Moreover, OFC (oxygen free high conductivity copper) is adopted as an analog substrate. Rating of a mode Form Compact disk player Pickup 3 beam semiconductor laser scheme Frequency characteristic 2Hz - 20kHz SN ratio (EIAJ) 115dB or more Dynamic range (EIAJ) 99dB or more Channel separation (EIAJ) 110dB or more Wow and flutter (EIAJ) Below a limit of measurement (±0.001%W.PEAK) THD (EIAJ) 0.0015% or less Output voltage 2.0Vrms The number of channels Two channels (stereo) Digital output Coaxial output: 0.5 Vp-p/75ohm Optical power: -15dBm--20dBm (wavelength of 660nm) Power source AC100V, 50Hz/60Hz Power consumption 18W Dimensions Width 440x height 151x depth of 433mm Weight 20kg Adjunct Wireless remote control