|SANSUI compact disk-alpha 717D
|89,800yen(around the 1989 time)
The compact disk player which adopted New L.D.C.S of
the MASH scheme.
New L.D.C.S of the 1-bit D-A-conversion scheme on the
basis of a quartz-crystal oscillation is carried in the D-A-conversion part.
The digital signal was changed into the PWM signal in the MASH section, and
since an analog signal is direct outputted through a low pass filter, it has
canceled theoretically the occurrence of zero cross distortion or non-linear
Furthermore, the PWM output of a digital analog converter is
constituted to 4DAC twin balance system, and while gaining the SN ratio which
was excellent with a removal of a common mode noise, and an enhancement of the
output signal, the reduction of sub- higher-harmonic distortion is aimed at.
Furthermore, in order to employ the special feature of MASH efficiently, an
original technology is supplied to an off-site circuitry, and it has more the
reproductivity of the signal of minute level, and a structure which raised SN of
4 motor mechanism which consists of a linear motor which
was compatible in tray loading, a mechanism-chassis up and a rapid access, and
silence of independent 2 motor which realizes a smooth operation, and a spindle
motor is used for a mechanism part. Moreover, the vibration proof effect is
heightened by considering it as a triple chassis structure.
In order to
secure the performance stabilized as body of revolution to a disk tray, the
liquid crystal polymer is adopted.
This has realized the tray of the accuracy of dimension which was the material which offered the outstanding vibrational absorption property, and also was excellent with high rigidity and elasticity since the expansion coefficient was low.
power-source part, in order to carry out the full separation of a digital system
and the analog system from the stage of a transformer in consideration of a
cross interferencee, the transformer is carried two sets.
cross interferencee is eliminated as an independent 9 power-source stream
composition, a high speed power source is carried in an analog part and L.D.C.S, and the power-source part with powerful independent source and interval is
In order to prevent the ill effect from inflow and the
servo circuitry of the servo electric current to an audio part, the original
dynamic balance servo system is adopted as a servo circuitry.
NEW dynamic servo system which negates the crossover distortion of servo drive amplifier is carried, and noise exclusion is put into practice.
digital output carries light with an On/Off switchpoint, and two coaxials.
Moreover, the amplifier which equipped the balance output which prevents
inflow of the noise through a grounding, and was equipped with the balance input
terminal, and an interconnection are possible.
COMPUEDIT in which
efficient tapes dubbing is possible is carried.
Functionalities, such as
convenient for special-NetWare-program setups variable scan & following
memory functionality, random play, and 2 position repeat, are carried.
Remote control is attached.
||Alpha-X balanced and a compact disk player
||Non-contact optical scheme
||A high precision and 3 beam semiconductor
||200rpm - 500rpm
|The number of channels
|Digital analog converter
||1-bit linear & direct combartion system
||0.0025% or less
||98dB or more (EIAJ)
|Wow and flutter
||Below a limit-of-measurement value
||105dB or more (EIAJ)
||Width 466x height 127.5x depth of 397.5mm
||Wireless remote control RS-1110