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General
System: Super Audio CD and CD
Power supply
Europe model: AC 230 V, 50 Hz
U.S.A./Canada model: AC 120 V, 60 Hz
Korea model: AC 220 V, 60 Hz
Power consumption: 39 W
Weight: 25 kg (55 lb)
External dimensions (W x H x D): 442 x 153 x 353 mm (17-3/8” x 6” x 13-7/8”)
Audio output (Analog Audio)
Jacks: XLR jacks (2 channels) x 1
RCA jacks (5.1 channels) x 1
Maximum output level (1 kHz, full scale): 2.2 Vrms (RCA, XLR)
Frequency response: 5 Hz to 50 kHz (–3 dB)
Signal-to-Noise Ratio (S/N): 116 dB
Total harmonic distortion: 0.0015% (1 kHz)
Audio output (Digital Audio)
OPTICAL: Optical digital jack x 1
COAXIAL: RCA jack x 1
i.LINK: i.LINK (AUDIO) terminal x 1
Word Synchronization input format
Jack: BNC
Input level: 4.5 Vp-p / 75 Ω
The X-01 D2 can accept and synchronize to the following frequencies received from
external devices: 44.1 kHz, 88.2 kHz, and 176.4 kHz
• Design and specifications are subject to change without notice.
• Weight and dimensions are approximate.
• The X-01 D2 is compliant with copyright protection system DTCP (Digital Transmission
Content Protection). Both the player and signal receiver unit should correspond to DTCP
to play back Super Audio CD by using i.LINK.
TEAC ESOTERIC COMPANY
www.teac.co.jp/av/
“Super Audio CD“ and “DSD” are registered trademarks. “i.LINK“ and “i.LINK“ Logo are trademarks.
All other brand or product names are trademarks or registered trademarks of their respective holders.
PRINTED IN JAPAN 0907L05•TECD-0051
Please note that Esoteric products are available at limited distributors in respective countries. “Esoteric“
“VRDS“ and “VRDS-NEO“ are trademarks of TEAC Corporation. All other brand or product names are trademarks or
registered trademarks of their respective holders. ©2007 TEAC Corporation. All Rights Reserved. All text, images, graphics
and other materials on this catalogue are subject to the copyright and other intellectual property rights of TEAC
Corporation.
These materials shall not directly or indirectly be published, reproduced, modified
or distributed in any medium. Design and specifications are subject to change without notice.
English version
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Without compromise, the X-01D2 is an evolution
in technology from the X-01 and X-01 Limited
The X-01 D2: the flagship of ESOTERIC’s “X” series integrated
Super Audio CD/CD players opens a new realm of audio reproduction.
The X-01D2 incorporates ESOTERIC’s P-03 series VRDS-NEO mechanism
and the world's first user selectable dual D/A converter system.(*) This new audio system includes
a proprietary DSD/PCM and PCM/DSD interactive signal conversion function.
(*) Available 2007 Aug.
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ESOTERIC’s uncompromising technologies include the proprietary VRDS-NEO
(Vibration Free Rigid Disc-Clamping System), used as
a core mechanical design helping to re-define sound quality.
20 mm thick steel bridge holds turntable and spindle providing
ultra-low vibration and extremely accurate data retrieval
The P-03 VRDS-NEO mechanism, enhanced from the original X-01 mechanism, is an integration of ESOTERIC’s
highest grade “mechatronics,” technologies, providing the ultimate experience in sound reproduction.
TEAC proprietary hall element sensing-type three-phase brushless motor.
Shaft-sliding pickup structure keeps the laser optical axis in a precise vertical
orientation, eliminating the need for off axis error correction.
Ultra-high-precision turntable system
When a Super Audio CD is played, the higher-speed rotational requirement causes
increased and unwanted vibration. The VRDE-NEO turntable precisely supports
disc rotation so adverse effects generated during high-speed rotation can be
minimized. High-speed rotation also necessitates that the spindle shaft be more
rigid than in the past. The turntable, which may be considered the heart of the
VRDS-NEO mechanism, is supported by high-precision, highly rigid mechanical
components.
[Coreless motor with no rotational irregularities]
ESOTERIC has developed a long-life three-phase brushless spindle motor for high-
speed rotation. Development of the magnetic circuit, consisting of a neodymium
magnet, was completed through numerous tests and scientific validations
including magnetic field analysis. The optimized magnetic circuit minimizes
rotational irregularities in the motor and makes it possible to reduce fluctuations in
the motor drive current, thereby lessening any adverse effects on audio circuits
and other areas.
Coil of three-phase brushless spindle motor
on the bridge (left), and newly developed ceramic ball
bearing components. (right)
[Duralumin turntable]
During Super Audio CD playback, the maximum rotational speed is 4.5 times
greater than the rotational speed during conventional CD playback. In order to
ensure that the turntable can handle this high-speed rotation, ESOTERIC selected
duralumin as the turntable material. This material is best known as a body material
used in high speed aircraft. ESOTERIC developed new technology for processing
this material into lower mass with higher dimensional precision. As a result, the
P-03 enables ultra smooth turntable response and stable data acquisition by
preventing disc vibration. The turntable is dyed black to absorb any diffused
reflection of the laser from the pickup device.
[Rigidity and precision are significantly improved by the use of highly
precise ball bearings in the spindle shaft bearing assembly]
A pair of precise ball bearings is used in the
spindle shaft bearing unit and a pre-load is
applied to the bearing inner rings. This design
significantly reduces any potential for rattling
and shaft shaking during use. The use of these
specialized ball bearings dramatically increases
the precision of the bearing unit, and greatly
improves rotation and positioning accuracy. The ceramic ball bearings support
smooth and precisely controlled turntable rotation from low speed to high speed.
Structure of
ceramic ball bearing components
Stainless steels
Ceramics
Speed feedback-controlled sled transport with superior response and
minimal extraneous pickup lens movement.
[Massive bridge unit to support the turntable and the spindle unit]
The X-01D2 features a 20 mm-thick ultra high mass bridge (1.7 kg or 3.75 lbs),
precisely processed from SS400 steel. This bridge rigidly supports the turntable
and spindle unit. Any vibrations originating from the spindle during rotation are
subsequently attenuated by the mass of the bridge.
Advanced pick up technology --- thread servo section
ESOTERIC developed an ingenious component structure for driving the pickup
lens using a horizontal sled structure. This design moves the pickup unit with an
extremely high level of accuracy. This system ensures that the laser optical axis is
always positioned at the very center of the pit track for optimal reading, making it
possible to minimize the adverse effects of disc surface shaking and offset tracking
often present with higher speed rotation.
[Pickup structure designed to
prevent laser optical axis tilting
during lens movement]
The pickup used in the X-01D2 has a
shaft-sliding structure that prevents the
laser optical axis from tilting away from a
vertical orientation even when the lens
is moved. This stability in the optical axis
pickup and vibration-free VRDS turntable
combination, are the primary factors
defining the outstanding mechanical performance of the X-01 D2.
[Speed feedback-controlled sled transport with superior response and
minimal extraneous pickup lens movement]
To provide a very high-performance pickup capable of smooth, continuous
movement, a proprietary hall element sensing-type, three-phase brushless motor
is used in the sled transport. Powerful electronic speed feedback circuits control
this sled mechanism. This is another design implementation that improves the
precision and accuracy of the data acquisition process.
[Vibration isolation for spindle motor and moving sled systems]
The spindle system, which may generate fine vibrations during rotation, is isolated
from the moving sled system. Since the sled mechanism requires very delicate
electronic control, this isolation from high-frequency vibrations ensures superior
data reading performance.
[High-precision mechanism and new software controlled servo control for
superior playability]
The precision-machined proprietary mechanism combines with new system
software to provide optimal servo control for each type of optical disc. This
equates to superior playback capability regardless of the type of disc used.
[Disc tray shutter mechanism – Vibration seal]
When the disc tray is closed, the shutter seals the front tray opening. As a
result, the shutter shields the internal mechanism, reducing any mechani-
cal or sound pressure vibration induced by external noises (such as those
created by loudspeakers). The vibration seal also stops airborn particles
from entering the system.
1.Tray starts to slide back. 2.Tray stops. 3.Shutter starts to close. 4.Shutter closed and
Pickup : sliding-shaft structure
Horizontal movement
Pickup Lens
Floating magnet x 2
for pick-up
securely locked.
Vertical movement
Guide pin to
maintain
center position
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The X-01D2 has high quality, dual D/A converter devices on board:
the Analog Devices “AD1955” DSD and PCM compatible device
and the Burr Brown “PCM 1704” multi-bit device.
ESOTERIC’s exclusive “D2,” technology applies interactive format conversion
functions between PCM and DSD, delivering maximum
capability and flexibility for digital audio formats
A perpetual quest for source quality - The X-01D2 applies the essence of the D-03 D/A converter
technology: dual mono front 2 channel audio circuit boards.
Surround sound audio circuit board equipped with AD1955
Dual mono front 2 channel audio circuit boards
(DSD/PCM compatible), devices for each channel
“PCM1704” multi-bit DAC device x4 “AD1955”
DSD/PCM compatible DAC device x1
Dedicated high quality 2 channel audio output
The X-01D2 incorporates two different DAC devices; Analog devices AD1955
(PCM/DSD compatible DAC), and Burr Brown PCM1704 (multi-bit DAC). These two
DAC devices offer three different DAC mode selections (multi-bit, 1-bit, and DSD
mode), to meet wide variations of audio disc sources and to allow for a wide
range of consumer choice. The AD1955 is used for DSD signal processing (Super
Audio CD), and PCM/DSD interactive conversion function. The AD1955 contrib-
utes to reproduce the musical source, with full ambience throughout the entire
audio range, while also providing a very smooth sound quality. The PCM1704 is
used for PCM signal processing (CD). Following the established design of the X-01
series, four pieces of PCM1704 are used per channel to work in a differential
mode. This design improves S/N ratio and provides high linearity of the source.
The listener can enjoy etched sound imaging and low level signal linearity that
only the multi-bit DAC can deliver. In addition to these 2 modes, the AD1955’s
built-in 1-bit DAC is selectable. In this 1-bit mode, the DSD signal is converted to a
PCM signal, and then converted through the 1-bit DAC.
Mode Selection
•REFERENCE mode
Signal source DAC mode
PCM(CD) REFERENCE PCM > [Multi-bit DAC]
DSD(SACD) REFERENCE DSD > [DSD DAC]
•Multi-bit mode / 1bit mode / DSD mode
Source DAC mode Front 2 channel Surround Channel
Multi-bit [Multi-bit DAC]
PCM (CD) 1bit [1bit DAC] （None）
DSD [DSD convert] > [DSD DAC]
Multi-bit [PCM convert] > [Multi-bit DAC]
DSD (SACD) 1bit [PCM convert] > [1bit DAC]
DSD [DSD DAC] [DSD DAC]
High quality analog audio output for multi-channel support equipped
with AD1955 DAC devices
The X-01D2 features the same Analog Devices AD1955 implementation for multi-
channel audio output (The X-01D2 includes 6 pieces of AD1955 for 2 channel and
multi-channel circuits). The 2 channel analog audio circuit and multi-channel
analog audio circuits are identical in their components and layout. This implemen-
tation helps to reduce quality differences between 2 channel and multi-channel,
achieving more natural and seamless multi-channel surround sound playback.
i.LINK (IEEE1394), interface with flow-rate-control
Audio grade i.LINK (IEEE1394), circuit designed by ESOTERIC with flow-rate-control
technology provides jitter free signal transmission. High grade digital signals read from
Super Audio CD sources can be transmitted to other i.LINK devices equipped with
flow-rate-control. These devices may include a multi-channel D/A converter, A/V
surround sound processor or A/V receiver equipped with the i.LINK connection.
Burr Brown operational amplifiers/German
made WIMA film capacitors
[PCM convert] > [1bit DAC]
WBT “nextgen” RCA terminals/
High quality Rhodium plated AC power inlet
Word synchronization
The X-01D2 features a WORD SYNC input terminal to accept an incoming external
WORD clock signal. The input can operate with 44.1 / 88.2 / 100 / 176.4 kHz clock
signals. The unit can operate using an ESOTERIC original 100 kHz Universal Clock
signal. The incoming ultra-stable clock signal produced by external components, such
as a master clock generator, effectively upgrade the unit, delivering higher
performance with better defined and more natural sound. Because master clocks
generate a signal to re-time the DAC and transport ; transparency, staging, imaging
and detail often improve.
Selected high-grade parts and internal wiring
•The X-01D2 uses two separate power supplies for digital and analog components.
Each power supply uses an R-core transformer. This proprietary design implementation
is highly efficient, reducing adverse effects on playback such as magnetic flux leakage,
vibration or system noise. Furthermore, the power supply circuit is completely
separated from the audio circuit board to minimize other adverse effects.
•High purity 6N (99.9999%), copper wire strands are used for main internal wiring.
This wiring contributes to very high acoustic detail and finely textured sound
expression from the X-01D2.
•The X-01D2 includes WBT “nextgen,” RCA terminals with a conductive core made of
pure material (gold plated pure copper), for analog audio output (L/R: front 2 channel)
and digital audio outputs.
•High quality AC power inlet features Rhodium plated pure copper terminal with ultra
low temperature treatment. This reduces noise associated with power line input.
•High grade audio components such as German made WIMA film capacitors, and Burr
Brown operational amplifiers, contribute to a more dynamic three-dimensional sound
stage reproduction from the X-01D2.
Highly rigid, center mounted chassis construction for VRDS stability
The X-01D2 chassis design is a perfect integration of ESOTERIC’s state-of-the-art “mecha-
tronics,” technologies, allowing precise mechanism mounting and highly-rigid,
resonance-free system construction. The internal sub chassis is divided into 3 sections
to achieve high rigidity and optimal circuit layout, reducing interference between each
circuit component.
The high mass VRDS-NEO mechanism is securely mounted on the center division of the
sub chassis to achieve optimal rigidity. The chassis is supported by three pinpoint
isolation feet made of quenched steel, allowing the unit to be mechanically isolated
from its environment. The front panel is made of thick extruded aluminum, the top
panel (with exquisitely engraved “ESOTERIC” logo), and side panels are also made of
thick aluminum. This heavy construction, combined with the Disc Tray Shutter
mechanism, isolate the unit from external adverse effects such as sound pressure from
loudspeakers or other external vibrations. Internal vibrations are also damped by the
use of this hardened “chassis in chassis” system design.
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