The full-scale 3 head cassette deck which challenged
the threshold and likelihood of the cassette from the model which hits the
sister machine of try marker Nakamichi 1000.
The completeness 3 head scheme is adopted. It combines with the constant
tension effect which a double gap capstan scheme induces by the recording
head of a ferrite core, and the erase head and the reproducing head of
the hard super permalloy core of the narrow gap of 0.7micro,Adhesion with
a tapes also becomes good and is played by flat frequency response to
a high region.
In order to correspond
to perpendicular gap of the tapes and head which the distortion on molding of a
cassette case brings about, the recording head perpendicular regulating function
with an alignment beacon is carried.
A coordination is possible only by
turning a thumb, carrying out the sound-recording play of the 400Hz built-in
signal, offering the adjustment mechanism which a phase progresses and detects
the output by delay, and seeing the blinking status of 2 issuance diodes.
The control by IC logic circuitry is carried and all the tapes controls
are operationals in one-touch.
Moreover, the timing of the amplifier of a
recording play, a bias oscillation, and an operation of a mechanism is also
controlled completely, and is suppressing the occurrence of the it1 noise.
The organization of the muting of tone, a memory counter, etc. is carried
decibel peek level meter is carried in a level meter, and it
does not have the care about the excess recording which occurs since a pointer
cannot follow a sharp peek input like common VU meter.
The threshold of
the mechanism precision of a magnetic tape cassette is conquered from the
closed-loop and double capstan drive side.
With the using of a DC servo
motor, up until last minute, it is large and properties, such as a wow and
flutter, are improved by two flywheel effects which raised the effective mass.
The switching unit of a low-noise tapes and a chromium tapes is carried.
The property which suited each tapes by the corrective network in which a
low-noise tapes has 120us and 1590us, and a chromium tapes has a time constant
of 70us and 3180us has been acquired.
The pitch control which can change
tape speed ±6% by play is carried.
The limiter circuit is built in, about 1/of excessive inputs of +3dB or more are automatically pressed down to 7, and the distorted occurrence is suppressed.
The pickup is carried 3
point, the blend mike input besides a right-and-left channel input is prepared, and mixing of a sound effect, vocal, and a solo can be performed freely.
The head base organization in which put in the damper organization and
the degree of coherence with a tapes was received is adopted.
level calibration unit is carried and it can adjust according to a low-noise
tapes and a chromium tapes.
The Dolbey noise reduction is built in.
The main motor of DC servo, and two motors of Mr. winding
cassette eject with a damper
19kHz MPX filter built-in
control is possible.
A foolproof feather touch, a control push-button
||Stereo cassette deck
|Wow and flutter
||0.06%or less Wrms (Japanese Industrial
||Low-noise tapes: 35Hz - 18000Hz, ±4dB
Chromium tapes: 35Hz - 20000Hz, ±4dB
|A comprehensive S/N ratio
||55dB or more (all band Dolbey Inn)
or more (Japanese-Industrial-Standard auditory sensation weighting)
|A comprehensive distortion
||2% or less (1kHz, 0dB)
||60dB or more (1kHz saturation level)
||35dB or more (1kHz, 0dB)
||60dB or more (1kHz, 0dB)
||A mic, a blend mic: 0.5mV/600 ohm
100mV / 100kohm
DIN: 25mV / 50kohm
||Line: 1V (0dB, output volume maxima)
Headphone: 1mW, 8ohms (0dB)
|The semiconductor used
||A maximum of 60W
||Width 520x height 267x depth of 130mm