Wadia di122 User manual

Wadia Digital, LLC. 2 Chambers Street Binghamton, New York 13903-2699 Phone: [phone] Fax: [phone] www.wadia.com
di122 digital audio decoder
Owner’s Manual

2
The lightning ash with arrowhead, within an equilateral
triangle, is intended to alert the user to the presence of
uninsulated “dangerous voltage” within the product’s en-
closure that may be of sufcient magnitude to constitute
a risk of electric shock to persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the appliance.
WARNING - TO REDUCE RISK
OF FIRE OR ELECTRICAL
SHOCK, DO NOT EXPOSE
THIS EQUIPMENT TO RAIN OR
MOISTURE.
NO USER-SERVICEABLE PARTS
INSIDE. REFER SERVICING TO
QUALIFIED PERSONNEL.
To prevent the risk of electric
shock, do not remove cover or
back. No user-serviceable parts
inside.
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 a dry cloth.
7. Do not block any ventilation openings. Install in ac-
cordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as ra-
diators, heat registers, stoves, or other apparatus
(including ampliers) that produce heat.
9. Do not defeat the safety purpose of the polarized
or grounding-type plug. A polarized plug has two
blades with one wider than the other. A ground-
ing type plug has two blades and a third ground-
ing prong. The wide blade or the third prong are
provided for your safety. If the provided plug does
not t into your outlet, consult an electrician for
replacement of the obsolete outlet.
10. Protect the power cord from being walked on or
pinched particularly at plugs, convenience re-
ceptacles, and the point where they exit from the
apparatus.
11. Only use attachments/accessories specied by the
manufacturer.
12. Use only with the cart, stand, tripod, bracket, or
table specied by the manufacturer,
or sold with the apparatus. When a
cart is used, use caution when mov-
ing the cart/apparatus combination
to avoid injury from tip-over.
13. Unplug this apparatus during light-
ning storms or when unused for long periods of
time.
14. Refer all servicing to qualied 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.
15. Do not expose this equipment to dripping or splash-
ing and ensure that no objects lled with liquids,
such as vases, are placed on the equipment.
16. To completely disconnect this equipment from the
a.c. mains, disconnect the AC / DC Adapter from
the a.c. receptacle.
17. The mains plug of the power supply cord shall
remain readily operable. If the AC /DC Adapter
is provided with a mains power supply cord at-
tachment, the plug of this power supply cord shall
remain readily operable.
18. Do not expose batteries to excessive heat such as
sunshine, re or the like.
19. Connect mains power supply cord only to a mains
socket outlet with a protective earthing connection.
IMPORTANT SAFETY
INSTRUCTIONS!
PLEASE READ THEM BEFORE
OPERATING THIS EQUIPMENT.
WARNING
DO NOT INGEST BATTERY, CHEMICAL BURN HAZARD
The remote control supplied with this product contains
a coin/button cell battery. If the coin/button cell battery
is swallowed, it can cause severe internal burns in just
2 hours and can lead to death. Keep new and used bat-
teries away from children. If the battery compartment
does not close securely, stop using the product and keep
it away from children. If you think batteries might have
been swallowed or placed inside of the body, seek im-
mediate medical attention.

3
3. Reinstall the Battery Cover.
4. Store the battery in a cool dry place for future use
or dispose of the battery in accordance
with the local regulations for lithium bat-
tery disposal. Batteries should never be
thrown away or incinerated.
The Wadia di122 Remote Control uses a long life Lith-
ium Coin Cell type battery. The di122 may be sup-
plied with a battery depending on the country where
the di122 is purchased. When purchasing a battery for
use in the di122 refer to the following list:
Approved Lithium Batteries
Brand IEC No. ANSI/NEDA No.
Energizer CR20di122 5004LC1
Panasonic CR2032(PA/1B)15004LC1
1CR Lithium Coin Cells contain Perchlorate Material - special handling
may apply. For additional information go to www.dtsc.ca.gov/hazaedous
waste/perchlorate/index.cfm
Access to the recessed battery compartment is located
on the Rear of the Remote Control.
Refer to figure 1.
Perform the following steps to install
the battery:
1. Press the tab towards the bottom
edge of the Remote Control and
lift up on the Battery Cover and
temporarily place it aside. Refer to
figures 2 and 3.
The life of the Lithium Battery used in the Wadia
Remote Control is dependent on the actual amount of
use. It is advisable to remove the battery from the Re-
mote Control when it is not to be used for an extended
period of time. This will help to extend battery life
and avoid possible damage to the Remote Control.
Perform the following steps to remove the battery
from the Remote Control:
1. Press the tab and lift up on the Battery Cover
and temporarily place it aside. Refer to figures 2
and 3.
2. Referring to figure 6,
press on the bottom edge
of the battery to release
the battery from the
molded battery socket.
Then remove the bat-
tery from inside of the
Remote Control.
2. Remove the CR2032 Battery from its packaging.
3. Orient the battery so the + symbol (engraved into
one side of the battery) is facing up.
4. Referring to figures 4 and 5, insert the battery
into the socket. Make sure the battery is touching
both contact points and is seated in the socket.
5. Reinstall the Battery Cover.
6. The Remote Control is now ready for operation.
Battery Installation and Replacement
Battery Installation
Battery Removal
CAUTION:
Danger of explosion if the battery is in-
correctly installed. Only install one of the
approved Lithium Batteries listed below.
Figure 1
Battery
Compartment
Figure 2
TAB
Figure 3
LIFT
UP
Figure 5
C
R
2
0
3
2
CR2032
3V
Figure 4
C
R
2
0
3
2
Contact
Points Battery
WARNING
DO NOT INGEST BATTERY, CHEMICAL BURN HAZARD
The remote control supplied with this product contains
a coin/button cell battery. If the coin/button cell battery
is swallowed, it can cause severe internal burns in just
2 hours and can lead to death. Keep new and used bat-
teries away from children. If the battery compartment
does not close securely, stop using the product and keep
it away from children. If you think batteries might have
been swallowed or placed inside of the body, seek im-
mediate medical attention.
Figure 6

4
All of us at Wadia Digital would like to say thank you,
and congratulations for deciding to own this Wadia
di122 digital audio decoder. We sincerely believe this
Wadia product will bring you many years of musical
enjoyment and satisfaction.
Please take a short time to read the information in this
manual. We want you to be as familiar as possible
with all the features and functions of your new Wadia
Product.
Copyright 2014 © by Wadia Digital, LLC.
Table of ContentsThank You Please Take A Moment
Technical Assistance
If at any time you have questions about your Wadia
product, contact your Wadia Dealer who is familiar
with your Wadia equipment and any other brands that
may be part of your system. If you or your Dealer
wish additional help concerning a suspected problem,
you can receive technical assistance for all Wadia
products at:
Wadia Digital, LLC.
2 Chambers Street
Binghamton, New York 13903
Phone: [phone]
Fax: [phone]
Customer Service
If it is determined that your Wadia product is in need
of repair, you can return it to your Dealer. You can
also return it to the Wadia Service Department. For
assistance on factory repair return procedure, contact
the Wadia Service Department at:
Wadia Digital, LLC.
2 Chambers Street
Binghamton, New York 13903
Phone: [phone]
Fax: [phone]
The serial number, purchase date and Wadia Dealer
name are important to you for possible insurance
claim or future service. The spaces below have been
provided for you to record that information:
Serial Number: _______________________________
Purchase Date: _______________________________
Dealer Name: ________________________________
Safety Instructions..................................................... 2
Battery Installation and Replacement........................ 3
Thank You and Please Take a Moment...................... 4
Technical Assistance and Customer Service............. 4
Table of Contents ....................................................... 4
General Information .................................................. 5
Connector and Cable Information ............................. 5
Introduction................................................................ 6
Performance Features ................................................ 6
Dimensions ................................................................ 7
Installation ................................................................. 8
Connections:
AC/DC Adapter and Rear Panel Connections............9
Connecting to a Preamplifier.................................... 10
Connecting to a Power Amplifier..............................11
Remote Control:
Remote Control Push-buttons................................... 12
Front Panel:
Front Panel Displays, Push-buttons .......................... 13
Operation:
How to Operate the di122....................................14-17
Additional Information:
Photos........................................................................ 17
Specifications............................................................ 18
Packing Instruction................................................... 19
Wadia Digital, founded in 1988, is one of the
original companies dedicated to high performance
digital audio reproduction. Wadia is based on the
philosophy of applying advanced technology to
improve the performance of digital audio compo-
nents.
Wadia has consistently raised the standard for
performance of Digital Audio playback. Some of
the technological innovations pioneered by Wadia
include:
• DigiMaster™ patented algorithm (lter opti-
mized for reproducing music)
• ClockLink™ proprietary jitter reduction tech-
nology
• SwiftCurrent™ current to voltage conversion
technology
• First outboard Digital-to-Analog converter
• First to apply glass ber-optics to home audio
Our designs are born of a delicate balance of
technology shaped by a passion for music. Wadia
continues to re-dene the limits of digital music
playback.
About Wadia ....

5
1. For additional connection information, refer to the
owner’s manual(s) for any component(s) connected
to the di122 Digital Audio Decoder.
2. The Main AC Power going to the di122 and any
other Wadia Component(s) should not be applied
until all the system components are connected
together. Failure to do so could result in mal-
functioning of some or all of the system’s normal
operations. When the di122 and other Wadia Com-
ponents are in their Standby Power Off Mode, the
Microprocessor’s Circuitry inside each component
is active.
3. The Unbalanced Outputs and Balanced Outputs can
be used simultaneously.
4. The di122’s internal Digital to Analog Converter
Circuitry is designed to decode 2-channel PCM
(Pulse Code Modulation) Digital Signal present at
the Coaxial, Optical and USB Digital Inputs. Other
Digital Audio Signal Format Types will cause the
Audio Outputs of the di122 to be muted.
5. When discarding the unit, comply with local rules
or regulations. Batteries should never be
thrown away or incinerated but disposed
of in accordance with the local regulations
concerning battery disposal.
6. For additional information on the di122
and other Wadia Products please visit the Wadia
Web Site at www.wadia.com.
General Information and Connector Information
Connector and Cable Information
XLR Connectors
Below is the Pin configuration for the XLR Balanced
Output Connectors on the di122. Refer to the diagram
for connections:
PIN 1: Shield/Ground
PIN 2: + Output
PIN 3: - Output
Trigger Control Connectors
The Wadia di122 Trigger Input receives an On/Off
signal from +5 to +12 volts.
The Trigger Output will in
turn provide a +12 volt Output
Signal with a total current up to
25mA.
PIN 1 PIN 2
PIN 3
General Information
Trigger
Control
Ground
N/C

6
Introduction
Performance Features
Introduction and Performance Features
The Wadia di122 Digital Audio Decoder is one of the
finest Digital to Analog Processors ever created with
connections for digital sources including USB. The
di122 Outputs have the ability to drive multiple com-
ponents. The di122 reproduction is sonically transpar-
ent and absolutely accurate. The Wadia Sound is “The
Sound of the Music Itself.”
• Dual Function
Use the Wadia di122 as the Digital Preamplifer
together with Digital Source Components and Power
Amplifier1to form a complete Audio System. Connect
the Wadia di122 to an exisiting Analog Audio System
to provide the latest in Digital-to-Analog Conversion
from digital audio sources.
• Electronic Input Switching
Electronic Input Switching on all Inputs provides reli-
able, noiseless, distortion free switching.
• Balanced Outputs
The Balanced Outputs allow the connection of long
cable lengths without a loss in sound quality.
• Digital Audio Inputs
The di122 has Coaxial, Optical and USB Digital In-
puts to Decode PCM Signals from an external source.
The Coaxial and Optical Inputs process Digital
Signals up to 192kHz with 24Bit resolution. The USB
Input process PCM Digital Signals up to 192kHz with
32Bit resolution, decodes DSD128 Digital Signals and
DXD 24Bit with a sampling rate of 352.8 (or 384).
• ESS Digital to Analog Converter
The patented SABRE32 HyperstreamTM DAC architec-
ture and time Domain Jitter Eliminator is a 8 chan-
nel 32-bit, 192kHz Digital to Analog Converter. This
assures the music is reproduced with a wide dynamic
range and extremely low distortion for all Input
Sources.
• Precision Tracking Volume Control
Volume levels are controlled by a Digitally Controlled
Attenuator System.
• Alphanumeric Fluorescent Display
The Front Panel Information Display indicates the
Source Selection, Bit Rate/Sampling Frequency and
Volume Level. The display intensity is adjustable.
• Remote Control
The Remote Control provides control of the di122
operating functions.
• Gold Plated Connectors
The Output Connectors Contacts are gold plated for
superior corrosion resistance and high electrical con-
ductivity.
• LED Front Panel Indicators
Long life Light Emitting Diode (LED) is used to indi-
cate when the di122 is in the Standby Mode.
• Die Cast Aluminium Chasiss
Ensures the durability and functional design of the
di122 will be retained for many years.
1Note: The Wadia di122 is designed to be compatible with the
majority of Audio Power Ampliers. However, due to a
wide range of Power Amplier Designs it is important
the input sensitivity of the amplier be at least 2 Volts.
This will assure the playback of most music recordings
are reproduced with adequate dynamic range.
SABRE32 and Hyperstream are registerted trademarks of ESS Technology

7
Dimensions
Dimensions
The following dimensions can assist in determining
the best location for your di122. There is additional
information on the next page pertaining to installing
the di122 into cabinets. Front View of the di122
10"
25.4cm
Rear View of the di122
VOLUME 35%
352.8kHz 3-5/32"
8cm
8"
20.3cm
Side View of the di122
10"
25.4cm
10"
25.4cm
8"
20.3cm

8
Installation
Installation
The di122 is designed to be placed upright on a table
or shelf, standing on its feet. The required ventilation
requirements are shown.
Always provide adequate ventilation for your di122.
Cool operation ensures the longest possible operating
life for any electronic instrument. Do not install the
di122 directly above a heat generating device, such
as a Power Amplifier. Allow at least 2 inches (5.1cm)
above the top, 5/8 inches (1.6cm) below the bottom
and 1 inch (2.5cm) on each side of the di122, so that
airflow is not obstructed. Allow 20 inches (50.8cm) of
depth for airflow and cable connections.
di122 Side View
14"
35.6cm
di122 Front View
2"
5.1cm
1"
2.5cm 1" 2.5cm
2"
5.1cm
VOLUME 35%
352.8kHz

9
AC/DC Adapter and Rear Panel Connections
DIGITAL INPUTS Optical Inputs 3
and 4 for source components with a
Digital Audio Optical Output
USB Digital Audio Input
with control signal for
connection to a computer
UNBALanced AUDIO OUTPUTS
analog audio output signals to a Pre-
amplifier or Power Amplifier
BALanced AUDIO OUTPUTS
analog audio output signals to a
Preamplifier or Power Amplifier
DIGITAL INPUTS Coaxial Inputs 1
and 2 for source components with a
Digital Audio Coaxial Output
Connect the supplied
AC/DC Power Adapter
DC Output Connnector
TRIGGER IN receives turn-on
signals from a component and
TRIGGER OUT sends turn-on
signals onto another component
Connect to the DC IN 5V connector
on the Rear Panel of the di122 Digital
Audio Decoder
Connect to a live AC outlet (always On)
using the supplied AC Power Cord. Re-
fer to information on the power supply
to determine the correct voltage
The AC/DC Power Adapter supplied
with the di122 Digital Audio Decoder

10
Connecting to a Preamplifier
Connecting to a Preamplifier
There are two different ways the di122 may be oper-
ated in an audio system. The first way is as a Digital
to Analog Converter with Input Switching. The Audio
Output of the Wadia di122 is connected to an Analog
Input on the Preamplifier (Integrated Amplifier or Re-
ceiver). The second way is as the Main Audio Pream-
plifier connected directly to a Power Amplifier; follow
instructions on the next page.
On this page is an example of a typical audio
system. Your system may vary from this, however the
actual components would be connected in a similar
manner. For additional information refer to “Connec-
tor and Cable Information” on page 5.
Note: 1. The Output Connection Balanced or Unbal-
anced may be used simultaneously.
Analog Audio Connections:
1. Connect audio cables from the di122 UNBAL-
anced AUDIO OUTPUTS R & L (Right and Left)
connectors to the unbalanced Aux Input Con-
nectors on the Preamplifier (A/V Control Center,
Integrated Amplifier or Receiver).
Note: 1. The Balanced Outputs may be used instead of
the Unbalanced Outputs.
Digital Audio Connections:
2. Connect a Digital Optical Cable from the di122
DIGITAL INPUTS OPTICAL 3 connector to the
CD Player Digital Optical Output connector.
3. Connect a Digital Coaxial Cable from the di122
DIGITAL INPUTS COAXIAL 1 connector to the
Server Digital Coaxial Output connector.
4. Connect a USB cable with (type A to type B) con-
nectors from the di122 DIGITAL AUDIO INPUT
USB connector to the Computer USB connector.
Trigger Control Connections:
5. Connect a Control Cable from the Preamplifier
Trigger Out Jack to the TRIGGER IN Jack on the
Wadia di122.
di122 supplied AC/
DC Power Supply
Connect to a
live AC Outlet
(always On)
CD P LAYER SERVER
Computer
AUDIO OUTPUT
6. Connect a Control Cable from the Wadia di122
TRIGGER OUT Jack to the CD
Player Trigger In Jack.
7. Connect a Control Cable from the
CD Player Trigger Out Jack to the
Server Trigger In Jack.
8. Connect any additional McIntosh
Components in a similar manner, as
outlined in steps 5 thru 8.
AC Power Cords Connections:
9. Connect the di122 AC Power Cord
to a live AC outlet.

11
Connecting to a Power Amplifer
The di122 may also be used as the Main Audio Pre-
amplifier connected directly to a Power Amplifier.
Follow the connection instructions below and diagram
on this page.
This is an example of a typical audio system. Your
system may vary from this, however the actual com-
ponents would be connected in a similar manner. For
additional information refer to “Connector and Cable
Information” on page 5.
Notes: 1. The Output Connection Balanced or Unbal-
anced may be used simultaneously.
2. For additional information on Power Ampli-
fier requirements when the Wadia di122 is
connected directly to a Power Amplifier, refer
to page 6, 1Note.
Audio Connections:
1. Connect balanced audio cables from the di122 AU-
DIO OUTPUTS (Right and Left) connectors to the
balanced Input connectors on the Power Amplifier.
Note: If two Power Amplifiers are used, connect the
unbalanced AUDIO OUTPUTS (L&R) to the
unbalanced Inputs on the second Amplifier.
Digital Audio Connections:
2. Connect a Digital Optical Cable from the di122
DIGITAL AUDIO INPUTS OPTICAL 1 connector
to the CD Player Digital Optical Output connector.
3. Connect a Digital Coaxial Cable from the di122
DIGITAL AUDIO INPUTS COAXIAL 1 connec-
tor to the Server Digital Coaxial Output connector.
4. Connect a USB cable with (type A to type B) con-
nectors from the di122 DIGITAL AUDIO INPUT
USB connector to the Computer USB connector.
AC Power Cords Connections:
5. Connect the di122 AC Power Cord to a live AC
outlet.
Connecting to a Power Amplifier
di122 supplied AC/
DC Power Supply
Connect to a
live AC Outlet
(always On)
CD P LAYER SERVER
Computer
Power Amplier

12
Remote Control Push-Buttons
Note: Push-buttons whose function is not identified above are for use with other Wadia Products.
Press the (+) or (-) to adjust the
Volume Level Up or Down
Steps thru the Digital Inputs
(1 - 5) for source selection
Press MODE to switch
Power On or Off to the
di122
Mutes the audio
Press and hold to change the
Auto Power Off from Enabled
to Disabled
Press DISPLAY to change
from displaying normal
status to a single dot
Press to adjust the
Channel Balance

13
VOLUME 35%
352.8kHz
STANDBY/ON Push-button with indicator,
switches the di122 ON or OFF (Standby). It
will also increase the volume level when the
Volume Adjust Mode is active.
INPUT selection of digital sources for
decoding. VOLumn down is also used
to select the Volume Adjust Mode and
then will decrease the volume level.
Front Panel DISPLAY indicates the Source, Vol-
ume Level Percentage, Sampling Frequency and
Operational Functions.
Front Panel Displays, Controls, Push-buttons and Jack
IR Sensor receives
commands from a
Remote Control
Connection for dynamic
type headphones, for
private listening

14
dicate “VOLUME MUTE”. Refer to figure 54. Press-
ing the MUTE Push-button a second time or adjust the
Volume Level to un-mute the di122.
Balance
Listening balance varies with
different program sources, room
acoustics and listening positions
relative to the Loudspeakers. Use
Balance as needed to achieve ap-
proximately equal listening volume
levels in each Loudspeaker. To
adjust the Balance perform the fol-
lowing:
1. Press and release the Push-
button on the Remote Control
to decrease the volume level of
the Right Channel in one decibel
increments (up to -30dB) “BAL-
ANCE, L:0dB R:-30dB” ap-
pears on the Front Panel Display.
Refer to figures 54, 55 and 58.
Volume Level
To change the Volume Level of the Wadia di122, use
the (Volume Down) Push-button or the
(Volume Up) Push-button on the Remote Control for
the desired listening level. The Volume Level may also
be changed by using the Volume Adjust Mode and the
Front Panel INPUT / sVOL and STANDBY/ON / r
VOL Push-buttons. To activate Volume Adjust Mode
press and hold in the INPUT / sVOL Push-button.
The Front Panel Display will now show arrows on ei-
ther side of the current volume setting. Refer to figure
53. Then press the sVOL or rVOL Push-buttons to
either increase or decrease the Volume to the desired
level. When the arrows disappear from the Front Panel
Display, the Volume Adjust Mode will be deactivated.
Refer to figures 51, 53 and 58.
Mute
Press the Remote Control MUTE Push-button to
mute the Audio Outputs. Refer to figure 58. When the
Wadia di122 is muted, the Front Panel Display will in-
Power On and Off
The Red LED above the STANDBY/ON Push-button
lights to indicate the di122 is connected to AC Power.
To switch ON the di122, press the STANDBY/ON
Push-button on the Front Panel or the MODE (Power
On) Push-button on the Remote Control. The di122
will go through a brief startup initialization and
with the Front Panel Display indicating the last used
Volume Level Setting. Refer to figures 50, 51, 52 and
58. To switch OFF the di122 press the STANDBY/ON
Push-button on the Front Panel or the MODE (Power
Off) Push-button on the Remote Control.
Source Selection
Press the INPUT Push-button on the Front Panel or on
the Remote Control to select the desired source. Refer
to figures 51, 52 and 58.
How to Operate the di122
VOLUME 35%
352.8kHz
Figure 52
Figure 58
How to Operate the di122
Figure 50
VOLUME 35%
___
Figure 53
VOLUME 35% 
DSD128
VOLUME MUTE
384kHz
Figure 54
Figure 51
INPUT: 1 (COAX)
___
Figure 55
BALANCE
L:0dB R:0dB
BALANCE
L:0dB R:-30dB
Figure 56

15
Remote Control until the Front Panel Display will
indicate “AUTO POWER OFF, : ENABLE”. Refer
to figure 59.
2. Then press and hold the ENTER Push-button a
second time and the display will then indicate
“AUTO POWER OFF, : DISABLE”. Refer to
figure 60.
3. The Auto Power Off feature is now disabled. To
re-activate the Auto Power Off feature repeat steps
1 and 2.
USB Input Operation and Driver Installation
The di122 USB Input provides the capability to play
back music from a computer when the di122 Rear
Panel USB Connector is connected to a computer USB
Connector. Refer to figure 61.
Note: The USB Input is for direct connection to a com-
puter only. To playback music from a USB Drive,
connect the USB Drive to another USB Port on
the computer and select the USB Drive with the
Media Playback Program.
2. Press and release the Push-button on the
Remote Control to decrease the volume level of
the Left Channel in one decibel increments (up to
-30dB) “BALANCE, L:-30dB R:0dB” appears
on the Front Panel Display. Refer to figures 57
and 58.
After approximately 3 seconds, the Display returns to
indicate the Volume Level and Sampling Rate.
Note: The di122 will retain any changes made to the
Channel Balance until it is changed again.
Display of Sampling Rate
The Wadia di122 indicates the digital sampling rate
for all of the Input Sources connected to the Digital
Audio Decoder. Referring to figure 53, the second line
of the Front Panel Display is indicating the di122 is
receiving a DSD128 Digital Signal, via the USB Input.
When there is no digital signal present for the selected
Input Source the Front panel Display will indicate “ - -
-”. Refer to figure 50.
Auto Power Off
The di122 incorporates an Auto Power Off Feature,
which can automatically place the Digital Audio
Decoder into the Power Saving Standby/Off Mode.
This occurs approximately 2 hours after there has
been an absence of user activity. User activity includes
changes to any of the Operation Functions such as
source selection, volume adjustment, etc. If it is
desirable to disable the Auto Off Power Save Feature
perform the following steps:
1. Press and hold the ENTER Push-button on the
AUTO POWER OFF
: DISABLE
Figure 60
AUTO POWER OFF
: ENABLE
Figure 59
Figure 61
INPUT: USB
192kHz
The di122 USB Input is compatible with PC
Computers using Microsoft® Windows® Vista (SP2),
Windows 7 (SP1) and Windows 8 (SP1). It is also com-
patible with Apple® Macintosh® Computers using
OS-10.9 Mavericks or later.
When using a PC Computer with Windows, a spe-
cial Wadia USB Audio Software Driver needs to be
installed on the PC Computer. The driver needs to be
installed before connecting the di122 USB Input to the
USB Port on the computer.
Note: If an Apple Macintosh computer is used with the
di122, no additional driver is required.
The Wadia USB Audio Windows Driver is avail-
able for download from the Wadia Web Site:
http://www.Wadia.com/en-us/products/di122
Under “Products” select “Wadia di122” then
scroll down to the bottom of the Wadia di122 to the
“DOWNLOAD AREA”. Select the “WADIA di122
PC DRIVER SETUP” and download the PC Windows
Driver. Follow the instructions below to install the
Wadia di122 Driver:
Purpose: To Install the Wadia USB Audio Windows
Driver for use with Wadia Products with
an USB-Digital Audio Input.
Requirements: 1. A functioning Wadia Product with
an USB-Digital Audio Input.
2. A PC Computer with a genuine
Intel Main Processor and a
functioning USB Port.
3. Windows Vista (SP2), Windows 7
(SP1 or greater) or Windows
8.1 (SP1 or greater) Operating
System.
4. An USB Cable with Type A to
Type B Connectors.
BALANCE
L:-30dB R:0dB
Figure 57

16
computer, an
additional
“Wadia USB
Audio”
playback
device will
appear in the
listing. Make
sure to select
the “Wa-
dia Digital
USB Driver
1.0.57” from
available playback devices listed when us-
ing this Wadia Product for USB Audio.
USB Music Playback
When the USB Input is selected on the Wadia di122,
the Front Panel Display indicates the Sampling Rate
(refer to figures 10 and 11 for PCM Signals). Figures
12 and 13 indicate a Sampling Rate of 64 or 128 times
the Sampling Rate of a CD Disc for the incoming
Digital Audio Signal.
nectors between the PC Computer and the Wadia
Product with the USB-Digital Audio Input. An Icon
will appear On-Screen
indicating Windows
has found new hard-
ware. Refer to figure
5. When the driver
has been successfully
installed figure 6 will
appear.
Windows Sound Settings
For proper operation of the Wadia Product via the
Computer USB Connection, it is required to make
changes to Windows Sound Settings:
1. Click on the “Sound” (located in the Windows
Control Panel), then select the Digital Output
“WADIA DIGITAL USB Driver _._.__” icon.
Using the “Set Default” button to set the just se-
lected Wadia Icon as the default. Refer to figures
7, 8 and 9.
Notes: 1. When the Wadia USB Audio Product is not
connected to your computer, the previous
default Audio Device will be selected.
2. If other Wadia Products with USB Audio
Connections are also connected to the
Installing the Software
It is important to first install the downloaded software
on your computer before connecting the Wadia Prod-
uct to the computer. The USB Driver is included in the
downloaded software package.
Note: Before installing this software, please check to see
if the Wadia Product(s) with the USB-Digital Audio
Input has the latest firmware version, if not update
the firmware first.
1. Unzip the downloaded Wadia Windows USB
Driver Software Package.
2. Run “Wadia_USB_driver_._.exe”. Refer to figure 1.
3. Referring to figure 2, check the Always trust soft-
ware from “Amanero SRK” box and then the Install
button.
4. When the Driver has been installed click on the
“Finish” button. Refer to figures 3 and 4.
USB Connection
Connect the USB Cable with Type A to Type B con-
Figure 5
Figure 6
Figure 7 Figure 8
Figure 9
How to Operate the di122, con’t
Figure 10
INPUT: USB
192kHz
Figure 11
VOLUME 35%
352.8kHz
Figure 12
VOLUME 35%
DSD64
Figure 1 Figure 2
Figure 3 Figure 4

17
The Sampling Rate and the Bit Rate is determined by
the original recording and/or the Windows Application
Settings for Output Format (when available).
Note: In general, when the original music is recorded
at a higher Sampling Rate, the result is usually
more detail in the music. However, this higher
rate results in consuming larger amounts of stor-
age space. The Sample Rate usually should be set
to match the Sample Rate of the music recording
being played back.
There are many third party Windows Applications
(besides Windows Media Player) for steaming music
from the computer to Wadia di122 USB Input. An
example of just one of the available applications is
“JRiver Media Center”.
How to Operate the di122, con’t and Photos
Figure 13
VOLUME 35%
DSD128

18
Specifications
Frequency Response
+/-0.5dB from 20Hz to 20,000Hz
Total Harmonic Distortion
0.005%
Variable Output level
0 - 4.0Vrms Unbalanced
0- 8.0Vrms Balanced
Signal To Noise Ratio (A-Weighted)
105dB
Dynamic Range
98dB
Output Impedance
Less than 100 ohms (Unbalanced and Balanced)
Audio Specifications Digital Audio Specifications General Specifications
Power Requirements
100-240 Volts, 50/60Hz at 10 Watts
Standby: Less than 0.5 watt
Note: Only use the AC/DC Power Adapter supplied with
the Wadia di122.
Overall Dimensions
Width is 10 inches (25.4cm)
Height is 3-5/32 inches (8cm) including feet
Depth is 14 inches (35.6cm) including the Front Panel,
and Cables
Weight
7 pounds (3.2 kg) net, 8.5 pounds (3.8 kg) in shipping
carton
Shipping Carton Dimensions
Width is 14-1/8 inches (35.9cm)
Height is 8 inches (20.3cm)
Depth is 14-1/8 inches (35.9cm)
Digital Input Signal Format
Coaxial and Optical Inputs - SPDIF (PCM1)
USB Input - PCM1, DSD
Digital Input Sample Rate
Coaxial and Optical: 44.1kHz to 192kHz, 24-Bit
USB: 44.1kHz to 384kHz, 32-Bit (PCM)
DSD64, DSD128, DXD352.8kHz, DXD384kHz
Digital Inputs
Coaxial 1 and 2: 0.5V p-p/75 ohms
Optical 1 and 2: - 15dbm to -21dbm (TOS Link)
USB: USB Type B Connector
1 PCM (Pulse Code Modulation) Digital Signal type used for
CD Discs, etc.
Trigger Specifications
Trigger Input
5-15VDC, less than 1mA
Trigger Output
12VDC, 25mA maximum total

19
Packing Instructions
Packing Instructions
In the event it is necessary to repack the equipment for
shipment, the equipment must be packed exactly as
shown below. It is very important to ensure the proper
equipment location between the bottom and top foam
pads. Failure to do this will result in shipping damage.
Use the original shipping carton and interior parts
only if they are all in good serviceable condition. If
a shipping carton or any of the interior part(s) are
needed, please call or write Customer Service Depart-
ment of Wadia. Refer to page 4. Please see the Part
List for the correct part numbers.
Quantity Part Number Description
1 03456100 Shipping carton only
1 03456200 Top foam pad
1 03456000 Bottom foam pad

The continuous improvement of its products is
the policy of Wadia Digital who reserve the right
to improve design without notice. Printed in the
U.S.A.
Wadia Digital, LLC
2 Chambers Street
Binghamton, NY 13903
www.wadia.com
Wadia Digital Part No. 04152300