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Preliminary Information
D/A Converter
D-07
32-bit dual mono DAC that supports the playback of SACD and high-resolution music files
ESOTERIC is set to launch a new 32-bit D/A converter
D-07 that supports the playback of Super Audio CD and
high-resolution music files.
D-07 is a dual mono D/A converter capable of 32-bit
resolution.
D-07 features a variety of digital inputs, including a USB
terminal, that support the playback of Super Audio CDs
together with ESOTERIC’s Super Audio CD Transport
products, as well as the playback of high-resolution
music files (up to 96kHz/24 bit) via the USB connection
with your PC.
The digital processing in the D/A conversion input is
realized by utilizing a variety of D/D conversion functions,
and thus represents the pinnacle of ESOTERIC's digital
processing technology. The new D-07 features
high-definition functions that employ state-of-the-art
technology, such as format conversion for converting
PCM digital signals to DSD, PCM up-conversion (2x/4x),
and two digital filters. These functions can be freely
selected and used to fit your needs.
WORD SYNC allows you to synchronize playback with
other digital devices, and 2nd PLL effectively reduces the
jitter for digital devices without WORD SYNC - these are
the kind of high-definition functions that can only be
found on high-end device.
D-07 also has an attenuator for controlling the level of
analog output. It can be combined with selector functions
that are used for a variety of digital inputs, and serves as
a digital preamplifier.
D-07, which can be used with both audio-visual devices
and the PC, maximizes the potential of ESOTERIC’s
state-of-the-art technology. It is the ultimate high-end D/A
converter for all people that demand the utmost in quality
for high-resolution music files.
32-bit D/A converter that strives for the highest quality
sound
To achieve that perfect sound, D-07 uses the Asahi Kasei
Microdevices Corporation’s AK4392 (*1) DAC device. It also
comes equipped with an in-house developed high-speed and
high-performance digital signal processing section, and an
improved analog section for receiving processed data.
The 32-bit processing capacity is maintained throughout the unit,
from the input I/F and the digital filter, to the Delta-Sigma
modulator. The digital computing section provides high-precision
computing, even if data below 24-bit is input, helping to produce
that high sound quality.
In the analog section, the lay out of the channels is completely
symmetrical, and a dedicated power supply is used for each
circuit. This helps to prevent mutual interference. The clock is
also equipped with a dedicated power supply, thus minimizing
the effects caused by jittering.
Dual mono configuration from the DAC to the audio output
This configuration follows ESOTERIC's proven dual mono
configuration. It contains separate DAC devices and analog
audio circuits on each L/R, and the same parts positioned on the
same path. To reduce crosstalk between channels, the same
parts are positioned in the same pattern for each L/R in the
board. This minimizes differences in sound quality between L/R
to ensure superior channel separation. This allows you to
experience high-definition playback with a rich sense of
localization and depth.
XLR audio output is set up in full balanced configuration, allowing
you to select between HOT (pin=2) and HOT (pin=3). You can
also select from the analog outputs (RCA/XLR/OFF).
*For simultaneous output mode (RCA & XLR), output is fixed to
HOT (pin=2).
An abundance of digital inputs lets you connect to a variety
of devices
The D-07 comes with four types (USB, XLR, COAX and
OPTICAL)/ five systems of digital input, enabling you to connect
to a wide range of devices. The XLR (AES/EBU) input connects
with ESOTERIC P-05 to support Super Audio CD transports.
Except for USB, all of these systems support 192 kHz/24-bit
PCM input.
USB input enables high-quality playback from your PC
enabled
The USB input makes it possible to playback all the music
stored on your PC with high-end quality. All 96 kHz/24-bit
high-resolution music files can be transmitted to D-07 and
played as they are.
*Playable formats differ, depending on your PC’s music player.
USB isolator
The USB input is carefully designed with our high-end expertise.
The built-in USB isolator isolates the power/signal line from the
unit and prevents external noise interference from other devices,
such as the PC. This enables the clear playback without losing
the benefits of high-resolution music files.
Extensive up-conversion functions perfect for a variety
sources
PCM digital audio signals can be converted in a number of ways,
such as PCM up-conversion to 2x (64/88.2/96 kHz), 4x
(128/176.4/192 kHz), and conversion to DSD format.
Two types of digital filters
For processing the PCM format signal, D-07 offers two types of
digital filters that you can freely select: the FIR digital filter,
which has an established reputation for superb sound quality;
and a short delay digital filter, which removes the pre-echo in the
impulse waveform to reproduce the leading edge of the sound
more naturally.
WORD SYNC enables synchronized playback with external
devices
WORD SYNC effectively reduces the jitter that occurs while
transferring audio signals, delivering high-speed and
high-quality sound that is delicate yet full of presence. This
function also offers the word output mode, which enables
WORD SYNC-capable source devices to connect with the word
output for D-07. Likewise, there is also the word input mode,
which inputs a high-density word clock from a master clock
generator (such as ESOTERIC G-03X). This mode enables you
to upgrade to a more sophisticated system.
Main Specifications
2nd PLL mode helps to reduce jitter
D-07’s 2nd PLL mode uses the built-in VCXO (Voltage Controlled
Crystal Oscillator) to act as a high clarity master clock for the
DAC device. The two types of PLL circuits, each with different
characteristics, effectively remove transmission jitter. If a signal
is input from a device without WORD SYNC, the jitter component
that affects the sound quality is diminished, thus achieving stable
playback with rich musical expression.
32-bit high density digital attenuator
High-precision volume adjustment is made possible by 32-bit
digital processing and the 32-bit D/A device. Compared to 24-bit
of the past, this attenuator has an additional 8-bit allowance,
delivering volume control without a loss of sound quality caused
by dropouts. It also enables you to directly connect the D-07 to
power amplifiers and use it as a digital preamplifier.
Solid enclosure that perfectly guards the sound quality; an
exquisite construction
D-07's slim enclosure that stands only 103.5 mm tall incorporates
a short scratch-finished, thick aluminum front panel and
sandblast-finished 5 mm aluminum top and side panels. The
sculptured art generated by the screwless top panel and the
rounded corners creates a sense of sophisticated integration that
is consistent with ESOTERIC’s high-end products, placing the
elegance and joy of ownership within your hands.
*1 “AK4392” is Asahi Kasei Microdevices Corporation’s
Audio4proTM and brand product, and it is designed for
professional digital audio devices.
“Super Audio CD” and “DSD” are registered trademarks.
Analog output Output terminals XLR (2ch) Ξ1
RCA (2ch) Ξ1
Output impedance XLR: 100Ϋ
RCA: 100Ϋ
Maximum output level 2.2Vrms (1 kHz, full scale, 10kΫ)
Frequency response 5 Hz - 40 kHz
S/N ratio 130 dB
Total harmonic distortion 0.001 % (1 kHz)
Digital input Balanced digital input XLR Ξ1
Coaxial digital input RCA Ξ2
Optical digital input Optical Ξ1
USB input USB Type B Ξ1
Word Sync output Output terminal BNC Ξ1
Output frequency 44.1, 88.2, 176.4, 48, 96, 192 kHz (rectangular wave)
Output level TTL level (75 Ϋ)
Word Sync input Input terminal BNC Ξ1
Input frequency 44.1, 88.2, 176.4, 48, 96, 192, 100 kHz (rectangular wave)
Input impedance 75 Ϋ
Input level TTL level
General Power supply AC 230V 50Hz
AC 120V 60Hz
AC 220V 60Hz
Power consumption 7 Watt
External dimensionsΞWΞHΞDΞ 442 mm Ξ 103.5 mm Ξ 346 mm (17-3/8" Ξ 4-1/16" Ξ 13-5/8")
Weight 9.5 kg (21 lbs)
- This product is available in three different power supply variations shown in the chart above. Make sure that the voltage shown on the rear panel matches the AC line voltage in your area.
- The shape of the AC inlet and plug of the supplied power cord depends on the voltage rating and destination country.
Please note that ESOTERIC products are available at limited retailers in respective countries. “ESOTERIC“ is a trademark of the TEAC Corporation. All ESOTERIC COMPANY
other brand or product names are trademarks or registered trademarks of their respective holders. ©2009 TEAC Corporation. All Rights Reserved.
