D-3T

User Guide

D/A CONVERTERTable of Contents
Safety Precautions................................................................................................3
Front Panel Names and Functions.......................................................................6
Rear Panel Names and Functions........................................................................8
Remote Control Button Names and Functions...................................................10
Remote Control................................................................................................... 11
Features of This Product....................................................................................12
About ZERO LINK..............................................................................................14
USB Connection with a Computer......................................................................16DISPLAY button..................................................................................................17
Power Cable Connection....................................................................................17
Balanced Input/Output........................................................................................17
Attaching the Spike Pins.....................................................................................17
Protection Pads for Transport.............................................................................18
Troubleshooting..................................................................................................18
Maintenance.......................................................................................................18
Specifications......................................................................................................19

Supplied Accessories• User Guide (this manual)........................... 1• Hex key for spike pins................................ 1• Power cable............................................... 1• Wrench for the SMA cable......................... 1• Spike-receiving board ............................... 1• Remote control........................................... 1• Spike pin.................................................... 32

Safety Precautions

CAUTIONRISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICEPERSONNEL.

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert
the user to the presence of uninsulated “dangerous voltage” within the product’s enclosurethat may be of sufﬁcient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to thepresence of important operating and maintenance (servicing) instructions in the literatureaccompanying the product.

WARNINGTO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO
RAIN OR MOISTURE.

A warning that an apparatus with CLASS I construction shall be connected to a MAINS socket outlet with aprotective earthing connection.

3

IMPORTANT SAFETY INSTRUCTIONSREAD BEFORE OPERATING EQUIPMENT

This product was designed and manufactured to meet strict quality and safety standards.
There are, however, some installation and operation precautions which you should be particularly aware of.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings.
Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.
9. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and thepoint where they exit from the apparatus.
10. Only use attachments/accessories specified by the manufacturer.
11. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, orsold with the apparatus. When a cart is used, use caution when moving the cart/apparatus
combination to avoid injury from tip-over.
12. Unplug this apparatus during lightning storms or when unused for long periods of time.
13. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged
in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into
the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been
dropped.
14. Batteries shall not be exposed to excessive heat such as sunshine, fire or the like.

CAUTION:•

To completely disconnect this product from the mains, disconnect the plug from the wall socket outlet.
The mains plug is used to completely interrupt the power supply to the unit and must be within easy
access by the user.

•

Never use the unit with any other cord except the supplied power cord.

NOTE ON USE
WARNINGS• Avoid high temperatures.
Allow for sufficient heat dispersion when installed in a rack.
• Handle the power cord carefully.
Hold the plug when unplugging the cord.
• Keep the unit free from moisture, water, and dust.
• Unplug the power cord when not using the unit for long periods of time.
• Do not obstruct the ventilation holes.
• Do not let foreign objects into the unit.
• Do not let insecticides, benzene, and thinner come in contact with the unit.
• Never disassemble or modify the unit in any way.
• Ventilation should not be impeded by covering the ventilation openings with items, such as newspapers, tablecloths or curtains.
• Naked flame sources such as lighted candles should not be placed on the unit.
• Observe and follow local regulations regarding battery disposal.
• Do not expose the unit to dripping or splashing fluids.
• Do not place objects filled with liquids, such as vases, on the unit.
• Do not handle the mains cord with wet hands.
• When the switch is in the OFF position, the equipment is not completely switched off from MAINS.
• The equipment shall be installed near the power supply so that the power supply is easily accessible.

4

DECLARATION OF CONFORMITY
We declare under our sole responsibility that this product, to which this declaration relates, is in conformity with the following
standards:
EN60065, EN55032, EN55020.
Following the provisions of Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU.

A NOTE ABOUT RECYCLING:
This product’s packaging materials are recyclable and can be reused. Please dispose of any materials
in accordance with the local recycling regulations. When discarding the unit, comply with local rules orregulations.
Batteries should never be thrown away or incinerated but disposed of in accordance with the local
regulations concerning battery disposal. This product and the supplied accessories, excluding the batteries,
constitute the applicable product according to the WEEE directive.

CAUTIONS ON INSTALLATION

*
*

*

*

Wall
Wand
Paroi
Parete* For proper heat dispersal, do not install this unit in a confined space, such as a bookcase orsimilar enclosure.
• Leave sufficient clearance (at least 10 cm) from the wall, (at least 5 cm) from top surface of the unit.
• Do not place any other equipment on this unit.

5Front Panel Names and Functions
e r

q

y

w

t

q Power Switch (POWER)
Press to turn on the power, and press again to turn off.
Note:
• When an external clock is not connected, the power
cannot be turned on. (All indicators except the power
indicator do not turn on.)w Power Indicator

u

i

o

u Playback Mode Selection Switch (CAS)(CAS: Calculation Algorithm Select)Pressing the switch toggles between NOS (NonOversampling) and FIR (8x Oversampling Digital Filter).
Each time the switch is pressed, the playback mode
toggles NOS g FIR g NOS.
Notes:e Output Selection Switch (OUTPUT)• In NOS mode, the NOS indicator is lit green.
• To obtain better audio quality, using NOS is recommended.
• NOS is not available for DSD.
• PCM is fixed to NOS for USB input.

Pressing the switch toggles between balanced output
and unbalanced output.

i Invert Switch (INV)

Note:Pressing the switch inverts the balanced output phase.
Pressing again reverts to the original phase.

When the power is on, the indicator is lit blue.

• Balanced output and unbalanced output cannot be
performed simultaneously.

r Output Indicators
The selected output is lit.
Note:
• BAL (balanced) is lit blue and UNBAL (unbalanced)
is lit red.

⑤ Input Selection Switch (INPUT)
An input source can be selected. Each time the switch
is pressed, the input source changes: ZERO g USB1
g USB2 g COAX g AES g ZERO ….

y Input Source Indicators
The input source currently selected is lit.
Note:
• Only ZERO LINK is lit blue whereas others are lit red.

6Notes:• This product uses Pin 2 hot for balanced output. If
you use a preamplifier or pre-main amplifier with Pin
3 hot, invert the phase. Also, when the audio source
phase is inverted, use this switch.
• Unbalanced output is not inverted.

o Display Off Switch (DISPLAY)
Pressing the switch turns off all indicators except forthe power indicator. Pressing again reverts to theoriginal state.
Notes:• To obtain better audio quality, keeping the display off
is recommended.
• While the display is off, pressing any switch causes
indicators to turn on only for 4 seconds and then turn off.

Q4 Q5

Q0 Q1

Q2

Q3

Q0 NOS Indicator (NOS)

Q4 Remote Control Receiver

When in NOS mode, this indicator is lit green.

Receives infrared signals from the remote control.

Notes:

Note:• For PCM playback, NOS is recommended to obtainbetter audio quality.
• When using the FIR filter (8x Oversampling Digital
Filter) for PCM playback, this indicator turns off.
• NOS is also SYNC (DPLL-OFF, full sync) but the
SYNC indicator does not turn on (blue).
• NOS is not available for DSD.

• Point the remote control at the remote control receiver.

Q1 SYNC Indicator (SYNC)

Q5 Sampling Frequency Display
Displays the sampling frequency for the audio source
currently being played back.
Note:• During COAX or AES/EBU input, the sampling frequency
is not displayed in order to maintain the audio quality.

When in SYNC (DPLL-OFF, full sync) mode, this indicatorturns on (blue).
Note:• SYNC is automatically enabled during DSD playback.

Q2 Invert Indictor
When the phase is inverted, this indicator turns on(yellow).

Q3 Sampling Frequency Unit Indicators
Indicates the sampling frequency unit.
(MHz/KHz)

7

Rear Panel Names and Functionss

IN-terminal to IN-terminal
is strictly prohibited.

fa AC Inlet (AC115V)
Connect to a 115 V AC wall outlet (mains) with the
supplied power cable.
Notes:• Do not use any electrical contact cleaner or the
like in the AC inlet area.
• To maintain the audio quality, use the supplied power
cable.
• Connect the power cable to the AC wall outlet (mains)by inserting the power plug prong with the engraved
OO symbols into the ground side (the longer hole).
If you reverse the orientation of the power plug, you
cannot fully enjoy the performance of the unit.
• Firmly insert the power cable into the end of the AC
inlet.
• The ground terminal and the housing are not connected.

s Audio Output Terminals (OUTPUT)
These terminals output analog sound.
Notes:• Only balanced output or unbalanced output that isselected with the output selection switch (OUTPUT)
is performed. Balanced output and unbalanced output
cannot be performed simultaneously.
• Before connecting cables, turn off the power.
• This product uses Pin 2 hot for balanced output. Whenconnecting to a device with Pin 3 hot, invert the phasewith the invert switch (INV).

8

d

a

d 10 MHz External Clock Input Terminal(10MHz 50Ω INPUT)
Connect to a 10 MHz clock such as our product, X-3H.
Since this is an SMA jack, use a BNC female - SMA
male conversion adapter (sold separately) when ageneral BNC cable is used.
Notes:• When connecting an external clock to this product,
turn off the power of this product.
• When connecting an SMA cable, plug the cablestraight into the terminal. (Otherwise, the screw
cannot be turned easily.)• First, turn the screw with your fingers as far as it willgo.
• Then, use the supplied wrench to lightly tighten thescrew to the point where it cannot be turned easily.
• Do not overtighten the screw.

f External Clock GND Switch (GND)
Select whether to separate the GND of the connected
external clock from the D-3T chassis (SEPARATION)
or to connect (CONNECTION) the GND.
Note:
• Selecting CONNECTION is recommended to obtainbetter audio quality.

IN-terminal to IN-terminal
is strictly prohibited.

k

j h

g

g ZERO LINK Input Terminal(ZERO LINK)
Connect to a network transport equipped with a ZEROLINK output terminal such as Z-3H using a ZERO LINK
designated cable. This input terminal provides thehighest audio quality but a special attention is required
for when connecting.
Notes:• When connecting a ZERO LINK designated cable
to devices, turn off the power of the devices to beconnected together. Connecting/Disconnecting thecable while the power of the devices is on can cause
the devices to become faulty. Also, do not touch
the connector (where signals are transmitted)of the ZERO LINK designated cable. Even when
the power of the devices is off, the devices might
become faulty due to static static. Be sure to tighten
the screws to secure the cable.
• Do not connect input terminals (blue stickers) on bothsides, or do not connect output terminals (yellow
stickers) on both sides of the cable. It will cause a
malfunction.
• Do not connect a computer monitor or the like to theterminal. It will cause a malfunction.

h USB Input Terminals (USB1/USB2)
Connect to devices such as a music server, networktransport, and computer with a USB cable. For details,
see “USB Connection with a Computer” (page 16) orCSR, Inc. website.
Note:• To connect to a Windows computer, a designateddriver is required. The driver can be downloaded
from CSR, Inc. website.

j COAX Input Terminal (COAX)
Connect to an external device equipped with an S/
PDIF format applicable digital output terminal with a
75-ohm coaxial digital cable.

k AES/EBU Input Terminal (AES/EBU)
Connect to a device with an AES/EBU digital output
terminal with an XLR digital cable.

9Remote Control Button Names and Functions

The grayedout portions are not
網掛けの部分は本製品ではavailableonthis device.
対応していません。

qew

q SET Button

e DISPLAY button

It functions in the same manner as the input selection
switch (INPUT) on the unit.
Each time the button is pressed, the input sourcechanges: ZERO g USB1 g USB2 g COAX g AES g
ZERO ….

It functions in the same manner as the display off
switch (DISPLAY) on the unit.
Pressing the button turns off all indicators except forthe power indicator. Pressing again reverts to theoriginal state.

w CAS Button

Notes:

It functions in the same manner as the CAS switch on
the unit.
Each time the button is pressed, the playback mode
toggles NOS g FIR g NOS.
Notes:• In NOS mode, the NOS indicator is lit green.
• To obtain better audio quality, using NOS is recommended.
• NOS is not available for DSD.
• PCM is fixed to NOS for USB input.

10• To obtain better audio quality, keeping the display off
is recommended.
• While the display is off, pressing any switch causes
indicators to turn on only for 4 seconds and then turnoff.

Remote Control
n Notes on Operationn How to Change the Batteries
Remove the lid on the rear side of the remote control
and insert 2 AAA (LR03/R03) batteries as indicatedinside the battery compartment. After inserting thebatteries, attach the cover again.

Approx. 5m

60˚
Remote control
Operate the remote control within approx. 5 m distancefrom the front panel of the main unit within an angle of
60°to the remote sensor.
• Prevent the remote sensor from being exposed tostrong light.
• Do not place any obstacles between the remotecontrol and the remote sensor.
• Do not use other remote controls while using the
remote control for the main unit.

Cautions on Batteries• Use AAA (LR03/R03) batteries for the remote control.
• Replace the remote control batteries with new ones
after approx. 1 year has passed.
• If you cannot operate the main unit by using the
remote control at a short distance from the main unit,change the batteries with new ones even if 1 year
has not yet passed.
• Insert batteries with the correct polarity as indicatedby the “+” and “–” symbols inside the battery
compartment.
• Do not use old and new batteries at the same time.
Doing so may cause battery leakage or rupture.
Furthermore, do not use different types of batteries
together.
• Do not short-circuit, disassemble, or heat batteries.
Do not throw batteries into a fire.
• When not using the remote control for a long periodof time, remove the batteries.
• If battery leakage occurs, wipe the battery liquidfrom the battery compartment and then insert newbatteries.
• When disposing of batteries, follow appropriate local
guidelines and regulations such as ordinances.

11

Features of This ProductFeature 1: ZERO LINKZERO LINK is a standard formulated by SFORZATO and SOULNOTE. It is an ultimate link for achieving higher
audio quality by eliminating asynchronous circuits from the D/A converter. Connecting to a network transport
equipped with ZERO LINK enables you to build a network system that is fully synchronized by the clock on
the DAC side, and eliminating asynchronous circuits dramatically improves the audio quality. The layout isdesigned specifically for ZERO LINK. Input signals from the ZERO LINK terminal are transmitted to the DAC
chip connected in a straight line through the selector constituted by mechanical relays without jitter load.

Feature 2: Twin Monaural Construction for the Analog Parts

This product employs twin monaural construction where exactly the same output terminals, Type-R circuits,
power circuits, power transformers, relay drive circuits, and relay powers are used for right and left channels.
Also, the digital power supply including the transformer is completely isolated. Furthermore, control signals ofrelays which are contact points with analog signals are completely isolated by use of an analog photo-coupler.
In addition, the entire board mounting aluminum base is unsecured producing open and emotional sound. The
analog circuit board is mounted on multiple board chassis. The right and left board chassis are separated.
It is also separated from the rear panel. In the same manner as our product P-3H, the right and left GND
are grounded on the right-and-left independent side aluminum ground anchors, which are isolated from thechassis by use of foam teflon cables.

Feature 3: Type-R Circuit Employed for the Non-feedback Balanced Amplifier

The output line amplifier is equipped with a “Type-R circuit” which is a discrete non-feedback balanced circuitof the same grade as our product P-3H. Furthermore, the newly developed ultra-high precision naked foil
resistance is incorporated into the design. With the emitter resistance of 1 ohm and output resistance of 3.9
ohms, this product dramatically improves the amount of information and S/N, and boosts the drive performanceto the power-amplifier level.

Feature 4: Used 4 Units of ES9038PRO

For the DAC chip, 2 units of ES9038PRO are used for each channel (4 in total). The unparalleled strong
current output, 120 mA per channel, is indispensable for the discrete non-feedback DAC.
This current output is converted into voltage just before the first stage of the Type-R circuit with an IV resistanceowing to the naked foil resistance.

Feature 5: Designed Specially for Using an External ClockFor clocks which greatly affect audio quality of D/A converters, we discovered that separating the clock fromthe unit is better than installing it in the unit to maintain the audio quality. By having the clock in a different
housing with a different power supply, time can be kept quietly. For this reason, we do not use a built-in clock
anymore. The unit is designed specially for use with an external clock. For an external clock, the most ideal
product is our X-3H to maintain the audio quality. For the clock cable, using RCC-1 is highly recommended.

Feature 6: Femto Level DDS

With the ultra-low jitter DDS of 45 femtoseconds (fs), LMX2594, a high-quality master clock is generated fromthe input 10 MHz clock according to the sampling frequency. As a result, ES9038PRO can be operated in NonDPLL mode (128fs mode) with which you can get the best audio quality. During the ZERO LINK operation, thesampling frequency is transmitted by the transport for each audio track and then a master clock is generated
according to it. This achieves “full sync with the transport” without use of a PLL or sampling rate converter.

12

Feature 7: Power Transformers with Right-and-left Independently Grounded Construction

There are 3 power transformers: a digital transformer, right and left analog transformers. They are mounted on
the independent side aluminum bases, and vibration of each transformer is output from each base with a spikegrounded. Furthermore, the 3 transformers are vertically mounted and the leakage flux is kept parallel to theboard, preventing noises from entering patterns. The transformer base which is very important for maintaining
the audio quality, has a sandwich structure with aluminum sides that are floated with 3 points by using titanium
spacers. The materials, structure, and shape employed for the transformer base are optimal for eliminating
resonance while avoiding damping. For commutating capacitors, a total of 152 low-magnification electrolytic
capacitors are used. For commutating diodes, a total of 52 ultra-high speed SiC diodes are used. It is a hugecluster of power.

Feature 8: Employed NOS Mode

The highly acclaimed NOS (Non Oversampling) mode is adopted. This mode can prevent pre-eco and posteco which occur in impulse response of FIR oversampling.
• Impulse output waveform in a FIR oversampling filter
Pre-eco and post-eco are artificial “sound” created by calculation based on
the adjacent pieces of data in order to interpolate the data, which makes
waveforms such as sine waves smoother in appearance. However, the audio
quality changes depending on the calculation algorithm, and ambiguity on thetime axis is added.
• Impulse output waveform in NOS modeThis is the waveform that can be realized only in combination with a nonfeedback discrete amplifier with extremely excellent transient response
performance. Since the music waveform is a series of impulse waveforms
with different heights, the NOS mode dispels the ambiguity of the time axis
information, creating more realistic and natural sound quality as well as a feelingof mood and atmosphere for human hearing which is extremely sensitive withrespect to the time axis.

Feature 9: RSR-2-12D (Reference SOULNOTE Relay)

It is based on the ultra-low loss glass tube sealed lead relay whose performance is similar to mercury relay
yet is further customized for this unit. The level of the audio quality that our original customized relay realizes
is as high as that of wires.

Feature 10: Ultra-high Precision Naked Foil Resistance

It is based on the satellite-grade ultra-high precision foil resistance featuring excellent temperature characteristics
yet is further customized for this unit. The naked foil is adopted to eliminate damping and tendencies due tomolds and dips.
• For more detailed information, refer to our website or Facebook page.
https://www.kcsr.co.jp/soulnote.html

13About ZERO LINKZERO LINK is a standard formulated by SFORZATO and SOULNOTE. It is an ultimate link that connects thetransport to the D/A converter for achieving higher audio quality by eliminating asynchronous circuits from theD/A converter.
Eliminating asynchronous circuits from the D/A converter dramatically improves the audio quality.
ZERO LINK enables the number of asynchronous circuits in the D/A converter to be “Zero”.

● Internal operation of common network connections
In all types of connections, there are asynchronous circuits in the D/A converter.

Asynchronous
oeration
Synchronous
operation

Structure of a Network Player
Network player

NASLAN
LAN communication
OpenHome

Audio source LAN communication
control
OpenHome

FLAC
decompression

Playback

Asynchronous/
synchronous
I2S
conversion

Playlist
Management

DAC

AnalogoutputClock

Structure of a USB D/A Converter
USB D/A converter

NAS
USB
Audio source
controlFLAC
decompression

Playback

Asynchronous/

DAC
USB
synchronous
communication conversion I2S

USB
communication

Playlist
Management

AnalogoutputClock

LAN D/A Converter (diretta) OperationNAS

LAN D/A converter
LAN

Audio source
control
Playlist
Management

14

FLAC
Playback
decompression

LANcommunication
direttaLAN
Asynchronous/
DAC
communication synchronous
I2S
conversion
diretta

Clock

AnalogoutputZERO LINK not only transmits master clock or I2S signals but also performs communications. In other words,
the transport informs the audio source format to the D/A converter before playback, and the DDS of the D/Aconverter generates a high-quality master clock that synchronizes with this audio format and then transmits itto the transport. The transport generates a pure I2S signal that synchronizes with the master clock and thentransmits it to the D/A converter. As a result, the system from the DAC to transport can be fully synchronizedwith the DAC master clock, completely eliminating the need for asynchronous circuits which decrease theaudio quality.
● Internal operation of ZERO LINK connections
During the ZERO LINK operation, asynchronous circuit operations can be completely eliminatedfrom the D/A converter.

Asynchronous
oeration
Synchronous
operation

ZERO LINK Structure (When the Transport is Operated by OpenHome)
NAS

Transport (OpenHome connection)

Audio source LAN communication
control
OpenHomeLAN
LAN communication
OpenHome

FLAC
Playback
decompression

ZERO LINK D/A converter
I2S

Asynchronous/
synchronous
conversion

Analogoutput

DAC
DDS

D-3T
Clock generator

Playlist
Management

Z-3T

Clock

DVI

X-3T

ZERO LINK Structure (When the Transport is Operated by a USB Connection)
Transport(USB connection)

NAS
USB

USB
communication

Audio source FLAC
Playback USB
decompression
communication
control

ZERO LINK D/A converter
I2S

Asynchronous/
synchronous
conversion

Analogoutput

DAC
DDS

D-3T
Clock generator

Playlist
Management

Z-3T

Clock

DVI

X-3T

ZERO LINK Structure (When the Transport is Operated by diretta)
Transport(diretta connection)

NAS
LAN
Audio source FLAC
Playback LAN
communication
decompression
control
direttaZERO LINK D/A converter
I2S

Asynchronous/LANcommunication synchronous
conversion
diretta

Analogoutput

DAC
DDS

D-3T
Clock generator

Playlist
Management

Z-3T

DVI

Clock

X-3T

15

USB Connection with a Computer
Windows
To play back DSD/PCM files, install the designated driver to your computer.

Recommended computer specifications
OS
CPU
Memory: Windows 7 or later: Intel Core 2 processor, 1.6 GHz or higher: 1.0 GB or higher

Mac OS
Operations can be performed with a Mac OS X standard driver.
When using Bulk Pet, install a driver to your computer.

Recommended computer specifications
OS: Mac OS X 10.8 or later

When using for the first time (how to install the driver)
1. Access the following website to download the designated driver.
http://www.kcsr.co.jp/sn_software.html
2. Without this equipment connected to your computer, start your computer.
3. Before connecting this equipment to the computer, install the designated driver to your computer following the
instructions.
4. After the installation completes, restart the computer.
5. After the restart operation completes, connect this equipment to the computer and then turn on the power of thisequipment.
6. Operate the input selector of this equipment to select USB.
7. This equipment will be recognized by the computer and driver installation will start automatically.
Notes:• Depending on the computer specifications, installation may take some time. Do not turn off both this equipment andthe computer until an installation completion message appears.
• Depending on the operating system, certain settings may be required for sound to be output. Configure the settings
according to the operating system usage instructions.

16

DISPLAY button

Attaching the Spike Pins

The display and indicators other than the power indicator
can be turned off by pressing the DISPLAY button on the
remote control.
Turning off the display can reduce noise inside the unit
thereby improving the audio signal quality.

 y replacing the feet with the supplied spike pins,B
you can tune the audio quality. Point grounding makes
the sound focus and auditory lateralization sharper.
Furthermore, the audio quality can be subtly tuned
by changing the material of the surface on which thisequipment is installed.

Power Cable Connection
When you connect the power cable, be sure to insert
the ground-mark side (the side with 2 engraved circles)of the plug into the ground side (the side with a longer
insertion hole) of the AC wall outlet (mains). If the plug
is connected with the polarity reversed, this product may
not be able to deliver its utmost performance.
Short

Long
Ground side

Ground marks

The XLR Connector is used for Balanced Input/Output.
There are two types of connection, “European Type”
and “USA Type”.
1. European Type (adapter for this unit)(pin 2 = HOT, pin 3 = COLD)

HOT

2

1

GND

3
GND
COLD
2
1
INPUT
3
COLD

GND
GND

INPUT

1

3
GND
2 HOT
1
INPUT
3
HOT
INPUT

2

カーボンワッシャー
Carbonwashers

The feet can also be attached to the back-side holes.
If the front side of the device is not stable, attach thefeet to the back-side holes.
(To obtain better audio quality, using the front-side
holes is recommended.)

HOT

3
HOT
COLD
1
2
OUTPUT
3COLD
OUTPUT

2. USA TypeGND
GND3 = HOT)
(pin COLD
2 = COLD,
pin
2
1
1
COLD

• When replacing the feet with the spike pins, remove thecarbon washers from the feet, and then reattach themto the spike pins.
• When the spike pins are attached, it may be difficult
to keep weight balance stable. Take great care not tocarelessly apply a force on the corners of the main unit.

Note: Before connecting, be sureto turn off the power switch.

Balanced Input/Output

HOT

Notes:

GND

2

COLD

3
COLD
1 HOT
2
OUTPUT
3
HOT
OUTPUT

Carbon washers
カーボンワッシャー
Cautions• When using the spike pins, be extremely careful
not to get injured, etc.
• When using the spike pins, be careful that the surface
on which the main unit is installed such as the surface
of a table, shelf, etc., may become damaged.Using
the spike-receiving board is highly recommended inorder to protect the installation surface.

17

Protection Pads for Transport

Maintenance

Before use, be sure to remove the pads from the unit.
With the pads left attached, you cannot fully enjoy thehigh audio quality of the unit.

When the unit has become dirty, wipe it clean usinga soft cloth. To remove stubborn stains, dilute somedish-washing liquid in 5 or 6 times as much water,
soak a soft cloth in the solution, wring it out well, wipeaway the stains, and then wipe the surfaces dry witha dry cloth.
Never use alcohol, paint thinners, benzine, insecticides
or other volatile substances since they may mar or
remove the surface gloss.
Bear in mind that rubbing surfaces with a chemicalcleaning cloth or leaving such a cloth in contact with asurface for an extended time may result in deterioration.

• In order to maintain the audio quality, the top coverand terminals on the rear panel are intentionally notsecured.
• If you shake the unit, you will hear a rattling sound. It
is not an abnormality.
• When you transport the unit, reattach the pads to theoriginal places.

クッション
Cushions

Cushions
クッション

Troubleshooting
No sound is output. The unit does not turn on.
• Check that an external clock is connected.
• Check that the power of the external clock is on.
• Check that the screw of the SMA cable is tightened
all the way.
• Check the setting of the input selection switch.
• Check the setting of the output selection switch.
• Check that control application NAS and output
devices are selected correctly.
If the problem persists even after checking the above
items, turn off the all devices such as routers, NAS,and network transport, check the cable connections,and then turn on the power of all the devices again.

18

Specifications
Supported sampling frequency (ZERO LINK, USB)........................................ Maximum 768 kHz (PCM)/
Maximum 22.6 MHz (DSD)
Supported sampling frequency (coaxial AES/EBU)........................................ Maximum 192 kHz (PCM)/
Maximum 2.8 MHz (DSD64 DoPv1.1)
PCM quantization bit rate (ZERO LINK, USB).............................................. 16 bits, 24 bits, 32 bits
PCM quantization bit rate (coaxial AES/EBU)........................................................... 16 bits, 24 bits
Digital input................ ZERO LINK, USB (Type B)×2,
coaxial (S/PDIF), AES/EBU
External clock input............. 10 MHz (SMA 50 ohms)
Analog output................................... XLR×1, RCA×1
Analog output level (XLR)........................... 5.6 Vrms
Analog output level (RCA)........................... 2.8 Vrms
Frequency characteristic.........................................2 Hz to 120 kHz (+0/-1dB)
S/N ratio.......................................................... 110dB
Total harmonic distortion...........................................0.008% (NOS/176.4kHz)
Analog filter………………………Primary passive type
Power voltage..................................115 V AC, 60 Hz
Power consumption...........................................48 W
Maximum external dimensions.................454 mm (W) x 174 mm (H) x 407 mm (D)Weight.............................................................. 28 kg

19CSR International Ltd.

Printed in Japan

12/2021 35BA851170 TM