ขายเครื่องเล่นเทป SONY TC-KA3ES รุ่นใหญ่ 3 หัวเทป เสียงดี พร้อมใช้ หายาก Made in Japan
ขายเครื่องเล่นเทป SONY TC-KA3ES รุ่นใหญ่ 3 หัวเทป เสียงดี พร้อมใช้ หายาก Made in Japan
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SONY TC-KA3ES
¥65,000 (released in 1995)
explanation
A cassette deck that is a basic model of the new ES series developed by incorporating the technology of high-end machines.
It is equipped with Dolby S NR as a noise reduction system. Introducing Dolby SR technology,
which is used in professional equipment, and performing precise signal processing, tape noise
is reduced to about 1/16.
In addition, the breathing phenomenon peculiar to NR is suppressed by finely controlling the
loudness and height of the sound.
The layout of the audio circuit is as follows the signal flow as much as possible.
It uses a mid-ship mechanical system with a heavy mechanical deck in the center of the
front panel, which reduces the negative impact of chassis distortion on sound.
In order to prevent vibration and sound pressure directly subjected to the cassette half, a rigid
half-hold mechanism is adopted.
In addition to cassette holders made of fine ceramic composite materials with high vibration
resistance and cassette stabilizers using sorbocein with excellent vibration damping,
the cassette holder, which was previously locked on one side, has been changed to a dual
lock that locks on both sides, and in order to ensure the effectiveness of the cassette stabilizer,
The tape is more securely fixed by a delayed action stabilizer mechanism in which the stabilizer
crimps to the half after the cassette lid is closed.
By moving the frequency of the bias signal away from the audio signal band, it employs
a super-bias that reduces the interference that the bias causes to the audio signal.
The TC-KA3ES reduces beat noise and intermodulation distortion by shifting the bias frequency
to 160kHz.
It is equipped with a 3-point REC calibration function to realize recording that takes advantage
of the capabilities of the tape.
By expanding the adjustment by the internal oscillator, which was previously 2 points, to 3 points
of 400 Hz, 3 kHz, and 15 kHz, it is possible to match the characteristics of the tape more finely.
The capstan motor uses a direct drive system using a 3-phase BSL motor with little uneven rotation.
In addition, two sets of capstans and pinch rollers sandwich the tape to create a closed-loop
dual-capstan system that suppresses modulation noise to reduce wah and flutter.
The Lapis (sapphire capstan base) system, which uses sapphire with high hardness and
low friction coefficient for the bearing of the capstan motor, maintains stable running accuracy
over a long period of time.
Single-crystalline oxygen-free copper ESC-OCC wires with a purity of 99.997% or more are
used throughout the circuit to achieve high quality and pure transmission.
By installing a buffer amplifier that lowers the output impedance just before the output terminal,
it is less susceptible to the superiority or inferiority of the pin code used to connect to the amplifier.
An eccentric insulator with the mounting holes in the chassis offset from the center is used,
and the signals transmitted from the outside cancel each other out, making it difficult for them
to be transmitted to the chassis. The position and diameter of the holes have also been
examined through repeated prototyping and audition, and they have been tuned to be effective
in attenuating vibration components in the mid and high frequencies that affect hearing.
The PC-OCC winding laser amorphous head is adopted, which adopts high-purity
oxygen-free copper PC-OCC for the winding of the laser amorphous head.
The cassette halves are equipped with pads to press the tape against the head, but in the
closed-loop dual-capstan system, this pressure is excessive, which in turn increases
modulation noise.
To remedy this, a pad pressure reduction mechanism is used to provide slight convex
protrusions above and below the head gap to release the pressure of the pads.
It is equipped with Dolby HX-PRO.
By controlling the bias current in units of 1/1000th of a second according to the frequency and
evel of the signal, the linearity of the high frequency range is maintained.
It is equipped with an FL linear counter with a subtraction function.
It is equipped with an auto-monitor function that automatically switches the monitor sound from
the source to the tape when the play button is pressed.
It is equipped with a multi-AMS function that allows you to start 30 songs before and after
based on the song being played.
There were two color variations: gold and black.
It comes with a wireless remote control.
Black Models Included remote control Cassette Half-Hold Mechanism
Model Ratings
Model Cassette Deck
format 4-track, 2-channel
head Erase: 1
Recording: 1
Playback: 1
motor Linear Torque BSL D.D. Motors: 1
DC Motors: 2
signal-to-noise ratio 57dB (EIAJ, Dolby NR off, Metal Tape)
80dB (Dolby NR S, Peak Level, Metal Tape, Hearing Correction)
Frequency response 15Hz ~ 22kHz ±3dB (EIAJ, -20dB recording, metal tape)
15Hz ~ 16kHz ±3dB (-4dB recording, metal tape)
Wow Flutter
(EIAJ) ±0.04%Wpeak
0.022%WRMS
Distortion Rate (EIAJ) 1.3% (3rd harmonic distortion, reference recording level 250 nWb/m,
315 Hz sine wave, metal tape)
Power supply voltage AC100V、50Hz/60Hz
Power Consumption 23W
External dimensions Width 430 x Height 135 x Depth 360 mm
weight Approx. 7.6kg
belonging wireless remote control RM-J701
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