|69,800 yen(around the 1982 time)
Active Servo Bias (Dolby HX Pro) and the carried stereo cassette deck.
The active servo bias system which succeeded in highly precise
utilization of the Dolby HX Pro system developed at B&O in order to
correspond to digital age is carried.
This system is what the high region ingredient in a music signal worked
as a part of bias current, became exaggerated bias, imitated degradation
of the high region MOL, and paid its attention to the problem of the くSelf bias effect,The servo bias circuit by IC is always carrying out stable
control of the effective bias value which is a total of a music signal
and bias current added to a recording head at the proper value.
Structure of operation has deterred the saturation of the tape which
is adjusting the amount of bias actively in an actual dynamic characteristic, and happens easily by a high-level high region signal by this according to the
level of the high region ingredient of a music signal.
combination 3 head system is adopted as a head.
This head has adopted the
special structure using a hard complex material as a guard part at Sendust and a
core spacer, and is improving antiwear quality sharply. Moreover, a head part
lessens the loss in a high frequency region by carrying out multilayer laminate
of the thin core, and is improving the high region frequency response.
The super stabilized tension dual capstan mechanism is adopted as a mechanism.
Thereby, not only the problem of improvement in the numerical value of
a wow and flutter but sound quality improvement components, such as change
of a level and an abnormal-conditions noise, are improving.
By this mechanism, the capstan which rolled round (TakeUP) and performed
special surface preparation by micro grain processing original with an
Aiwa to the side is adopted. The slip which takes place between a capstan
and a tape by this is reduced and rolled round (TakeUP), and the torque
fluctuations of a reel axis, vibration, and also the influence from other
drive systems are also intercepted. As a result, the run which rolled the
tape which runs between 2 sets of capstans and pinch rollers from cut water,
and was stabilized by the always fixed tension to the end, and the fixed
head touch were realized, and prevention components, such as a dropout
and level fluctuation, are improved.
AD-FF60, the rotation accuracy of a motor is improved by the system servo.
Automatic degaussing system ADMS (Automatic Demagnetizing System)
original with an Aiwa is carried.
At ADMS, whenever it turns on a power switch, the degauss oscillator in
a deck sends high frequency current through a head, and a degauss is completed
in a little less than 1.5 seconds. The head state clean thereby always
The bias fine-tuning mechanism in which
best tuning is taken on a Normal chromium tape is carried.
By utilizing the
recording simultaneous monitor mechanism by 3 head systems, the most proper bias
can be set as each tape.
The intro play function fast forwarded from the
next to the next is carried reproducing about eight seconds of heads of music at
a time automatically.
Moreover, in a music sensor function, one-touch
performs search of one music approximately.
The auto tape selector,
dabbled ruby B/C and a MPX filter, and the auto REC-Mute function are carried.
TwelveLED meter with a peak hold, the peak value display classified by
tape, the multifunctional [ with a tape time display ] electronic counter,
the microphone input plug, the remote control terminal, etc. are carried.
||3 head cassette deck
||For capstans: System servomotor
reels: direct-current motor
||録再: Combination DX head
Double gap Sendust head
|Wow and flutter
(aiwa test tape use)
|- 20VU recording :
||Normal tape: 20Hz - 19kHz
tape: 20Hz - 20kHz
Metal tape: 20Hz - 21kHz
|ZeroVU recording :
Metal tape: 20Hz-17kHz±3dB
|Signal to noise ratio
(Metal tape peak
|Dolby NR off:60dB
Dolby B on:68dB
Dolby C on:75dB
||0.9% (metal tape)
than 50mV / 50kohm
|An Output voltage/impedance
||Line: More than 0.41V/50kohm
|Fast forward, rewinding time
||70 seconds (C-60)
|Auto stop system
||Pure electronic formula full auto stop
|Power supply voltage
||Width 420x height 110x depth of 280mm