DAT deck that enables digital recording from CDs by supporting serial copy management systems.
Sony's DAT deck is compatible with serial copy management systems for the first time,
enabling digital → digital recording from CDs to DAT decks, which was not possible in the
past.
Serial copy management systems can record digitally → digitally using CDs as masters, but
digital → digital recordings cannot be performed with tapes obtained from recordings as masters.
In addition, in the case of tapes recorded with analog inputs, the tape can be used as a master
to record digitally → the first generation, but digital recording → the second generation cannot
be recorded.
The A/D conversion unit uses a newly developed high-density linear analog-to-digital converter.
In A/D conversion, the level of each moment of the analog signal is sampled and each one is
quantized, but if the original analog signal contains components such as harmonics, noise
called folding noise is generated, so it is sampled through a low-pass filter. This filter uses a
relatively steep characteristic due to its relationship with the spectrum that appears mainly
at the sampling frequency, which worsens the group delay and phase characteristics.
The extremely fast operation of high-density linear analog-to-digital converters allows for
a much greater shift in the unwanted spectrum that appears after sampling, and the low-pass
filter is also an extremely light type of first-order CR type.
The D/A converter uses an 18-bit linear D/A converter with an 8fs digital filter in a dual
L/R configuration.
Sony has developed and adopted a DAT head that can maintain a uniform gap width even
after long-term use by applying the head technology cultivated by Sony in VTR.
It can record and playback for 120 minutes continuously in standard and option 1 mode, and
240 minutes in option 2 mode.
As an error correction and correction method, the double-encoded reed Solomon method is
adopted. This allows correction and correction even if the tape longitudinal burst error or if one
of the two heads becomes unplayable.
In addition to Super Strategy, the DTC-55ES adopts a feedforward superstrategy method that
anticipates error information and optimizes corrections, resulting in high reliability and strong
vibration resistance that can withstand repeated high-speed searches.
It uses a newly developed second-generation LSI that integrates only one LSI for signal
processing, such as error correction, RAM control, and digital I/O. This LSI boasts a high degree
of integration of approximately 20,000 gates in terms of the number of gates.
In addition, the microcontrollers that control software servos, mechanism controls, etc.
are consolidated into a single LSI, significantly reducing the number of components and
simplifying board configuration.
This increases reliability and further increases error correction capabilities.
It adopts a newly developed upright fluoroscopic cassette compartment. This allows you to
directly check the tape run just like cassette tape, and also reads label letters. In addition, the
time it takes to insert the tape and produce sound is halved to achieve quick recording/playback.
In addition, it also uses direct operation using a power loading mechanism, which simply inserts
the tape and presses the desired button directly, and the tape is pulled in and moved to operation.
The mechanism is a 2D.D.+1BSL motor mechanism with a high-precision aluminum alloy
base unit, a dedicated direct drive motor for capstan and head drum rotation, and a dedicated
In addition, the motor servo also adopts a software servo that can set the servo characteristics according to the mechanism and motor.
It has a digital fade-in/fade-out function.
The fade-in/fade-out times can be set individually in a fine-grained range of 0.2 seconds to
15 seconds. In addition, it works with the pose function, so you can use it when editing
and recording.
It is equipped with a subcode function and can register a start, skip, and end ID.
All manual start ID, skip ID, and end ID writing are equipped with a rehearsal function.
During rehearsals, you can move the point back and forth in 0.3 second increments while
listening to and checking the sound, and the travel time is displayed on the display. You can
also modify the start ID that has already been written while rehearsing.
In addition, it is equipped with functions such as an erase function that allows you to erase the
ID once it has been written, a program number function, a renumbering function that re-sweeps
the number from the beginning of the tape with one touch, a shift number that renumbers the
start ID while reattaching it in advance by 0.3 seconds, and an absolute and time display from
the top of the tape.
It is equipped with functions such as time search, AMS play, AMS search, program
number search, music scan, repeat, end search, RMS play, etc.
It is equipped with optical and coaxial digital input/output terminals.
The switching between the optical input and the coaxial input is done by a switch on the
front panel. The optical input also uses a servo-type digital signal normalizer circuit that
absorbs jitter from the cable.
It is equipped with a linear counter that can be switched between four modes: a counter
display that shows the tape running time, a rethinking display that shows the remaining time,
a program time that shows the elapsed time of the song being played, and an absolute time
that shows the absolute time from the tape top.
While recording with digital inputs from a BS tuner or other DAT deck, wait in recording pose for
up to about 10 minutes even if the signal is interrupted.
-60~0dB, with a wide-range digital peak meter for each ch22 segment.
The FS map function utilizes a digital peak meter to visually know at which sampling frequency
is being recorded at an approximate position on the tape.
When recording, it is equipped with a digital peak margin display that digitally displays how
much memory level is left in dB units. The data on which this display is based is based on
data from the digital processing circuit as well as for the level meter display.
It is equipped with a display OFF function, and you can choose from three modes: turning off
only the meter part, turning it on when operating, automatically turning off during recording/playback, and turning on all lights. This function can also be operated from the
remote control.
It is equipped with a dimmer function that allows you to change the brightness of the display
by three levels.
It is equipped with a cue function with sound that starts at about 2.5x speed while checking
the
sound and automatically changes to about 8x speed when the button is pressed.
By combining the
timer sold separately, you can record home and play an alarm.
It is equipped with a headphone jack with variable
output.
In addition to most of the
operation of the main unit, a wireless remote control is included that allows you to select
songs and pose Sony's remote-controlled CD player.
In addition, by operating it towards both the main unit and the CD player, wireless CD
synchronization recording is also possible, which starts playing the CD after unpausing t
the recording of the main unit.
Model rating
Model DAT Deck
Number of channels 2-channel stereo
Sampling Frequency/Number of Quantized Bits 48kHz/16-bit Straight (Record/Playback)
44.1kHz/16-bit Straight (Digital in Record/Playback Only)
32kHz/16-bit Straight (Digital in Recording/Playback Only)
32kHz/12-Bit Non-Linear (Recording/Playback)
Error correction Double Encoded Led Solomon Code
Emfasis Pre-emphasis (during recording, for analog input) fixed
to OFF De-emphasis (during playback) on/off automatic switching
Modulation method 8-10 Conversion
Frequency response 2Hz～22kHz ±0.5dB
Dynamic range 92dB or more (when recording, emphasis off)
Signal-to-Noise Ratio 92dB or more (when recording, emphasis off)
Full harmonic distortion Less than 0.005%
Wow Flutter Measurement limit (±0.001% W.Peak) or less
Interface Analog Line in/out: Pin jack
Digital in/out: EIAJ compliant coaxial and optical
Power supply AC100V、50Hz/60Hz
Power consumption 28W
Dimensions W430 x H115 x D330mm
Weight Approx. 7.5kg
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