The cassette deck which carried a wide-range system
and Dolbies S and FLAT PERSONAL SYSTEM, and was developed as a new reference
The wide-range system which improved sharply the high region threshold
of the Recording-play frequency characteristic is carried.
technology is what paid its attention to the powerful magnetic property which a
metal tape has, and the fine tuned azimuth head which tuned up the azimuth
parallelism of the recording head and the reproducing head in three dimensions
to submicron order has realized it. While reducing the azimuth loss in a high
region sharply by this head, the phase response of right and left of a high
region has been improved, and the improvement in a feeling of a lateralization
has also been obtained.
Furthermore, Recording-play amplifier also carries
out wide band-ization and is raising the peek of the vibration point of an
equalizer to 30kHz. While improving a transient response property by this and
obtaining a sharp riser, the unnecessary ringing at the time of falling is also
The newly developed high speed play amplifier constituted from
two steps is adopted as a play equalizer amplifier.
Low-noise-izing and wide
band-ization are realized by adopting the FET differential amplifier of a
low-noise as the 1st step, and constituting the 2nd step from a highly efficient
high speed OP amp.
Moreover, first class operation FET buffer amplifier is
adopted as the output unit of sound-recording amplifier, and the stable current
supply source which is not influenced by the load intensity of the recording
head is realized.
In order to prevent the tone-quality failure by the
electric current of the control system which flows into an audio circuitry, MOS
FET in which a low electric-current operation is possible is adopted as the
interface part from system control to an audio system. This eliminated the
influence of a control electric current, and the music transmit with a higher
purity is realized.
eye Signal d from which a power-source part
separates a positive power source and a negative power source from the coil of a
power transformer to a grounding pattern, and the signal of a positive and a
negative changes at random -- the independent operation is realized.
Moreover, the Output load impedance in an audio frequency band is suppressed
to 0.001ohm or less, and while obtaining low-noise-ization, the transient
response property is raised.
Dolby S which has a maximum of 24dB in a
high region, and has a noise reduction effect of a maximum of 10dB on low-pass
Furthermore, the sound and the bleeding noise (breathing event)
of minute level are also reduced sharply.
In order to rectify the
frequency characteristic of a tapes for a flat and to pull out the performance
of a tapes, FLAT PERSONAL SYSTEM is carried.
FLAT PERSONAL SYSTEM is
low-pass (400Hz) about a bias and an equalizer sensitivity,It has a structure
rectified on three points of a mid-high range (3kHz) and a super-high region
(15kHz), and the microcomputer which has mid-high-range 16 step with 64 steps
and an equalizer, and has the resolution of 32 steps by a recording level on the
bias adjusts automatically for a short time.
Furthermore, the fine tune according to liking by manual operation is also possible.
The direct construction is adopted in order to eliminate a transmit loss
and a noise. This is shortening sharply the path of the signal to the input
terminal-recording head and a reproducing-head output.
transmit loss, such as equipping having controlled with the long shaft, in order
to make an input volume approach an input terminal, and the line straight
functionality which bypasses a balance volume, and the reduction of a noise are
put into practice.
The slant mechanism which made 10 degrees of the
whole tape-transport part incline is adopted, and exclusion of the fine
oscillation to the smooth rotation and the orientation of an axis of a heavy
weight class fly wheel is realized.
Moreover, a cassette stabilizer is begun
for exclusion of an oscillation and a vibration,The storage compartment in the
door which uses high-density material, a motor and the motor vibration insulator
which absorbs vibrational energy using a special strengthening resin motor
bracket and unopposed rubber between mechanism chassises,High-quality
sound-ization, such as adoption of the isorated door which intercepts an
extraneous vibration, is attained.
If the peak level calibration
functionality is carried and the peak level of an input signal is made to once
hold, a microcomputer can assist and distortion by the input of an excessive
signal can be canceled by adjusting a sound-recording volume to proper level.
Moreover, a meter range is -35dB-+8dB and -7dB-+8dB with the revertive.
The last memory functionality is carried and each data of FLAT PERSONAL
SYSTEM, Dolby HX PRO, Dolby NR, a meter range, the on/off location of a
switchpoint, the numerical character of an electronic counter, etc. can be
In order to eliminate inflow of the noise to a signal system,
the mid ship mounting structure which has arranged the mechanism in the center
The digital tension control which adjusts the rolling-up
torque of a tapes automatically is carried.
The laser-amorphous head
which adopted the PC-OCC (single-crystal quantity purity oxygen free high
conductivity copper) coil is adopted as a head.
Moreover, the erase head of
the 210kHz high bias scheme which suppresses an occurrence of the beat by
interference with the RF of a music signal and a bias current or cross
modulation distortion is adopted as the erase head.
The part selected
carefully is adopted in order to correspond to wide band-ization. Furthermore,
high-quality sound-ization, such as gilding-izing to a head connector, is
Moreover, as for the input/output pin jack or the attached pin
code, the gilding treatment is carried out in order to eliminate an
The sound recording which carried the compact
disk-DECK synchro functionality and was interlocked with the Pioneer compact
disk player with a functionality corresponding to a compact disk-DECK synchro is
SR termination which makes an interlock possible with the
system of Pioneer is carried.
The chassis and the inner chassis are
formed into a copper plating.
Wireless remote control is attached.
||3 head deck
||4 track two-channel stereo
||Magnetic recording reproducing head:
(A PC-OCC coil laser amorphous / PC-OCC coil laser
Erase head: Double gap ferrite with a sendust guarding
||For capstans: DC servo motor
For a mechanism drive: DC motor
|Wow and flutter
|already -- volume time (C-60)
||About 75 seconds
|SN ratio (TypeIV)
||58dB (EIAJ / peek recording level, auditory
Dolby NR off: 64dB or more (3% of the 3rd THD, auditory
Dolby B NR: 73dB or more (3% of the 3rd THD, auditory
Dolby C NR: 80dB or more (3% of the 3rd THD, auditory
Dolby S NR: 86dB or more (3% of the 3rd THD, an
auditory sensation weighting, 20Hz - 20kHz, B.P.F)
||Line: 95mV / 47kohm
|An Output voltage/impedance
Headphone: 5.5mW/eight ohm (at the time of a volume maxima)
||Width 440x height 144x depth of 375mm
||Remote control CU-T018