Casselin Sigma 2200i User manual

Owner’s Manual
Sigma 2200i
Stereo Integrated Amplifier

2
Classé marks the “CE” symbol indicating compliance of this device with the EMC (Electromagnetic
Compatibility) and LVD (Low Voltage Directive) standards of the European Community.
Classé complies with the European Parliament and Council Directive 2002/96/EC concerning Waste Electrical
and Electronic Equipment (WEEE). is product must be appropriately recycled or processed in accordance with
these directives. Consult your local waste disposal authority for guidance.
Classé products are designed and manufactured to comply with the Restriction of Hazardous Substances (RoHS)
as stated in the European Parliament and Council Directive 2002/95/EC.
NOTICE
All of us at Classé take extreme care to ensure that your purchase will remain a prized investment. We are proud to inform you
that all Classé components have been ocially approved for the European Community (CE) mark.
is means that your Classé product was subjected to the most rigorous manufacturing and safety tests in the world. e CE
mark certies that your purchase meets or exceeds all European Community requirements for manufacturing consistency and
consumer safety.
is equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the
FCC Rules. Operation is subject to the following two conditions: (1) is device may not cause harmful interference, and (2)
is device must accept any interference received, including interference that may cause undesired operation. ese limits are
designed to provide reasonable protection against harmful interference in a residential installation. is equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the
equipment on and o, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorientorrelocatethereceivingantenna;
• Increasetheseparationbetweentheequipmentandthereceiver;
• Connecttheequipmentintoanoutletonacircuitdierentfromthattowhichthereceiverisconnected;
• Consultthedealeroranexperiencedradio/TVtechnicianforhelp.
CAUTION:Changesormodicationstothisequipmentnotexpresslyapprovedbythemanufacturercouldvoidtheuser’s
authority to operate the equipment.
is product incorporates copyright protection technology that is protected by U.S. patents ad other intellectual property
rights. Reverse engineering or disassembly is prohibited.
e information contained in the manual is subject to change without notice. e most current version of this manual will be
posted on our web site at http://www.classeaudio.com.

3
Important Safety Instructions
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 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 grounding type plug has two blades and a third grounding prong. e 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 receptacles, 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 moving the cart/apparatus combination to avoid injury
from tip-over.
13. Unplug this apparatus during lightning 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 apparatus to dripping or splashing and ensure that no objects lled with liquids, such as vases, are
placed on the apparatus.
16. TocompletelydisconnectthisapparatusfromtheACMains,disconnectthepowersupplycordplugfromtheACreceptacle.
17. e mains plug of the power supply cord shall remain readily operable.
18. Do not expose batteries to excessive heat such as sunshine, re or the like.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION:TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT
REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED PERSONNEL.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
e lightning ash with arrowhead symbol within an equilateral triangle is intended to alert the user to the
presenceofuninsulated“dangerousvoltage“withintheproduct’senclosurethatmaybeofsucientmagnitude
to constitute a risk of electric shock to persons.
e 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 product.

4
Contents
Introduction .....................................................................................................6
Exceptional Design Features ............................................................................7
versatile connectivity.................................................................................7
superior performance ................................................................................7
clean, dedicated power .............................................................................7
room equalization and speaker control .....................................................7
flexible GUI...............................................................................................7
network connectivity, streaming audio and IP control ...............................7
extraordinary longevity..............................................................................7
Unpacking and Placement...............................................................................8
unpacking your Sigma 2200i.....................................................................8
Sigma 2200i placement considerations .....................................................8
warm-up/break-in period...........................................................................9
operating voltage.......................................................................................9
Rack-Mounting the Sigma 2200i....................................................................10
Front Panel..................................................................................................... 11
Rear Panel......................................................................................................14
serial number ......................................................................................... 14
The Remote Control.......................................................................................18
Initial Setup....................................................................................................20
Using the Sigma 2200i...................................................................................23
source selection...................................................................................... 23
The Menu System ..........................................................................................25
System Setup..................................................................................................25
Source Setup .......................................................................................... 26
Enable Source .................................................................................. 26
Input Connector............................................................................... 26
Source Name ................................................................................... 27
Configuration................................................................................... 27
Input Offset...................................................................................... 27
Configuration Setup................................................................................ 27
Configuration Name ........................................................................ 27
Configure Outputs ........................................................................... 28
Display Setup ......................................................................................... 28
Brightness ........................................................................................ 28
Timeout............................................................................................ 28
On Screen Display ................................................................................. 29
Volume Setup ......................................................................................... 29
Max Volume .................................................................................... 30
Startup Volume ................................................................................ 30
Mute Setup....................................................................................... 30
EQ Setup ................................................................................................ 31
Tone Control Setup................................................................................. 32
Network Setup........................................................................................ 33
Firmware Update via Network ............................................................... 33
Remote Fkeys ......................................................................................... 34
Important note on Fkey use .................................................................... 34
Teach IR ................................................................................................. 35
Tone Control........................................................................................... 35
Balance .................................................................................................. 36
Configurations ........................................................................................ 36
Mono...................................................................................................... 36
Status...................................................................................................... 36

5
Network Sources............................................................................................37
Apple AirPlay.................................................................................................37
Troubleshooting .............................................................................................39
network/streaming troubleshooting......................................................... 40
Care & Maintenace .......................................................................................42
Specifications.................................................................................................43
Dimensions....................................................................................................45
Installation Worksheet....................................................................................46

6
Introduction
Welcome to the Classé family!
Congratulations on your purchase of the Classé Sigma 2200i Stereo Integrated
Amplier. We are sure that you will enjoy it for many years to come.
Classé values its relationships with our customers and intend on supplying
the highest level of support along with our product. Registering your product
will allow us to keep in touch and will ensure that you are notied regarding
any future updates or options which become available. Furthermore, in the
unlikely event that your product needs service support, a product that is already
registereddoesn’tneedyouroriginalsalesslipforproofofwarranty.
You can register online at www.classeaudio.com or complete and mail the
registration card located in the separate warranty booklet.
Please take a few moments now to register your new Classé
integrated amplifier and record your serial number for future
reference.
Please note that your Classé warranty is valid only in the country of purchase.
Alternatively, units may be returned to Classé in Canada , B&W Group Asia
in Hong Kong or B&W in Worthing, England for warranty service.

7
Exceptional Design Features
e Sigma 2200i Stereo Integrated Amplier is designed for music lovers and
AV enthusiasts who want high performance control and amplication from a
diverse range audio sources. Its connectivity and processing power accommodate
the ever increasing array of music and AV sources, allowing them to be accessed
and enjoyed without compromise.
versatile connectivity e Sigma 2200i features a comprehensive set of digital and analog inputs
(including optional phono), to support the wide array of connections required
for contemporary audio and AV sources. A line level subwoofer output adds
additional versatility for optimizing system performance.
superior performance Advanced circuit topologies, component parts, and circuit layout techniques
combine for superior audio performance. e analog and digital signal paths
have been optimized to ensure superior performance from every source.
clean, dedicated power A Classé-designed switch mode power supply employing PFC (Power
Factor Correction) provides the clean, high-current power required for best
performance. With PFC, the Sigma 2200i operates at maximum eciency
without disturbing other audio components sharing the same AC mains.
room equalization
and speaker control All home audio systems are aected by room characteristics. Sound reections
and sound absorption can create dramatic variations in the performance of your
system, particularly in the lower frequencies. e Sigma 2200i features a system
of lters which, in the hands of an experienced acoustician, can help optimize
the performance of your system.
flexible GUI efrontpanel’sLCDtouchscreensupportsanextremelyexibleand
versatile graphical user interface (GUI) while maintaining a clean, uncluttered
appearance. e Sigma 2200i provides a range of controls that might otherwise
require dozens of buttons and knobs on the front panel. Despite this power and
exibility, it remains simple to operate in day-to-day use.
network connectivity,
streaming audio
and IP control
ArearpanelEthernetconnectionallowsstreamingaudioviaApple’sAirPlayand
DLNAaswellasfullIPcontrolviatheClasséApp(availablefreeofchargein
the Apple App store for iOS devices and in the Google play store for Andriod) or
home automation systems.
extraordinary longevity Because Classé has developed highly rened circuits over many years, we have
vast experience in what works well over the long term. Using this knowledge
base, along with quantitative results derived from highly accelerated life testing
(H.A.L.T.),allowsustoselectonlythemostreliableparts.isattentionto
detail and design allows us to manufacture products which stand the ultimate
test: time.
Just as past Classé products have done for their owners, we are certain that your
new integrated amplier will give you many years of continuous enjoyment.

8
Unpacking and Placement
We have taken all precautions, and made every eort to make the Sigma 2200i
simple and straightforward to install and use. Still, we recommend that you
take a few minutes to review this manual. Even if you are having the integrated
amplier professionally installed, you will want to know how to eciently
operate it to its potential.
e Sigma 2200i menu system includes features that provide you with a great
deal of ne-tuning. Still, we have no way to evaluate outside variables such as the
acoustical characteristics of your listening space and the associated equipment of
your audio system. erefore, it is up to you to make the nal audio adjustments
for the optimum performance of your system.
For this reason, we strongly encourage you to have your integrated
amplier installed and calibrated by your dealer. e experience,
training, and specialized equipment they have can make a profound
dierence in the nal performance of your system.
unpacking your
Sigma 2200i
Carefully unpack the Sigma 2200i according to the supplied instruction sheet.
Do not forget to remove all accessories from the carton.
Important! Keep all packing materials. Transporting the Sigma 2200i
without using the packaging specifically designed for it may
result in damage that is not covered under the warranty.
Sigma 2200i placement
considerations Before installing your Sigma 2200i, be sure to read the following placement
suggestions.
• DonotplacetheSigma2200idirectlyonthetopsurfaceofa
conventional power amplier or any other heat source. Also keep the
unit out of direct sunlight.
• PlacetheSigma2200isothattheIRwindowonthefrontpanelis
clearly visible and not blocked.
• Position the Sigma 2200i in a central and convenient location for
both visibility and use. e integrated amplier is the hub for all other
component connections and generally your primary interaction point.
In addition, by placing the unit close to the other system components,
you minimize the cable lengths and hence reduce the amount of noise
that is introduced into the system through the cabling.
• Leave adequate clearance behind the Sigma 2200i for the AC cord and
connecting cables. We suggest six inches (15 cm) of free space to allow
cables sucient room to bend without crimping or undue strain .
• Donotobstructtheareaaroundtheunitsothatexcessheatcan
dissipate through normal air circulation.

9
Important! Obey all placement considerations. Not obeying the
placement considerations may result in damage that is not
covered under the warranty.
warm-up/break-in period Your new Classé integrated amp delivers outstanding performance immediately.
However, you can expect to hear subtle improvements as it reaches normal
operating temperatures and breaks-in.
In our experience, you can expect the greatest changes within the rst 72 hours.
Afterinitialbreak-in,you’llenjoyconsistentperformancelevelsforyearsto
come.
operating voltage e operating voltage of your Sigma 2200i is 100-240 V, 50/60 Hz.
Important! Attempting to operate your Sigma 2200i from an incorrect AC
voltage rating may cause irreparable damage which may not
be covered by your warranty.
If you are not planning to use the integrated amplier for an extended period of
time, for example due to vacation or other travel, we suggest that you disconnect
it from AC power.
Make certain that the Sigma 2200i is in Standby prior to disconnecting it.
Physically disconnect any and all valuable electronics from AC power during
electrical storms. A lightning strike anywhere near your home can generate a
tremendous surge on the AC mains that can jump across a power switch. A surge
from a lightning strike, which may be many thousands of volts, can cause serious
damage to any piece of electronics, no matter how well designed and protected.

10
Rack-Mounting the
Sigma 2200i
e Sigma 2200i is designed to accommodate rack-mount installation.
Professional installation by an authorized Classe dealer is recommended.
Torackmountthe2200i,removethetwoside-panelscrews,rotateandipthe
side panel to position the rack “ear” along the front of the 2200i and re-install
the side-panel screws. Repeat for the side panel on the opposite side. Remove the
feet from the bottom of the 2200i.
Carefully install the Integrated Amplier into the equipment rack using the
appropriate screws for the type of rack. It is easiest if two people perform the
installation to avoid the possibility of dropping the unit or otherwise causing
damage. Please allow for adequate ventilation, usually two rack spaces above the
unit will suce.
Magnetically secured rack ear covers, provided in the accessory pack, may be
used to cover the screws and nish o the appearance.

11
MENU MUTE
1 5 6 7 82 3 4 9
SIGMA 2200i
Front Panel
e front panel of the Sigma 2200i is shown above. e numbers in the drawing
refer to the descriptions that follow.
1 Standby/On Button and Status Indicator LED
Pressing the Standby button toggles the Sigma 2200i between operate and
standby mode – a low-power state which leaves the preamp/processor and
amplieroutputsinactive.IftheWakeonNetworkfeatureisenabled(see
NetworkSetup)theunitwillrespondtosystemcommandsviaanyofthe
supportednetworkcontrolprotocols(LAN,CAN-BusorRS-232)from
Standby.
If the unit is already in Standby mode, pressing the Standby button fully
powers up the unit.
• LEDOn(Red)–theSigma2200iisinStandbymode.
• LEDturnsgreen,thenblue–theunitisintheprocessof
power-up initialization.
• LEDOn(Blue),indicatestheunitisintheoperatemode.
• LEDturnsgreen,thenred–theunitisintheprocessof
powering down into Standby mode.
• LED O – the unit is not getting AC power.
NOTE: A power-save feature is enabled that puts the Sigma 2200i
into standby after 20 minutes without a signal or if the volume
is set to a very low level or muted. If you require this feature to be
defeated, contact your Classe dealer.
As you customize the settings for the Sigma 2200i, most
changes are made on-the-y without constantly requiring
additional steps to save settings. Settings are saved each time the
unit is put into Standby, so it is good practice to put the unit
into Standby after making changes to settings.

12
2 IR Window
e location of the IR (infrared) transceiver for the remote control is
behind this window. In most cases, there must be a clear path between the
IR window and the remote control in order for the unit to acknowledge
the remote control commands.
IftheIRwindowisnotinview,forexampleifit’splacedinacabinetor
closet, then the rear panel IR input can be utilized for remote control. For
more details about this option, see the IR input description in the Rear
Panel section found later in this manual.
In addition to receiving IR commands, the Sigma 2200i can also transmit
IR commands to third-party learning remote controls. For more details
about this option, refer to the Teach IR description in the Menu System
section found later in this manual.
3 Headphone Jack
e 1/4”(6.35mm) Headphone Jack accommodates stereo headphones.
Inserting a headphone plug mutes the main audio outputs.
4 USB Host Connector
e front panel USB connector allows the Sigma 2200i to work with
Apple’sportablemediadevicessuchasiPad™,iPod®andiPhone®which
require this type of connection. e front panel USB connector accepts
digital audio from these devices as well as providing power for recharging
them. Limited control is also available for these devices using the
navigation keys on the Sigma 2200i remote control.
e front panel USB connector is also used to load rmware updates.
When updates are posted in the software downloads section of the Classé
web site, they may be loaded onto a USB stick and plugged into the
front panel of the Sigma 2200i. When the power is switched on from the
rearpanel,theupdatewillproceedautomatically.Neartheendofthe
update you will be asked to touch the screen in three identied locations
for touchscreen calibration. Once complete, the light on the USB stick
will extinguish and the touchscreen will show the Home page. Remove
the USB stick and continue using the Sigma 2200i. Remember that any
subsequent setup changes are stored when the Sigma 2200i is put into
standby.
5 Menu On/Off Button
Press once to call up the main page of the menu system, which replaces
thenormalfrontpageorHomepageoftheTouchscreen.PresstheMenu
button again to revert to the Home page.
e menu system gives you control over operational details including:
system setup options, various display options and custom installation
capabilities so that the Sigma 2200i integrates smoothly into the most
complex systems. For more information, see the Menu System later in this
manual.

13
6 Touchscreen
e front panel touchscreen is used for day-to-day operation of the
Sigma 2200i. It is also used for setup and to display useful information as
required.
7 Mute Control
e Mute button reduces the Sigma 2200i volume by a pre-determined
amount. Pressing it a second time restores the volume to its previous level.
is behavior can be easily customized for very specic user requirements.
(See the section on Volume Setup for more information.)
NOTE: If you increase the volume using either the front panel
volume knob or the remote control while Mute is engaged, the
mute control disengages, and audio adjustments are executed
starting from the muted level. is is a safety measure to prevent
accidentally restoring the volume at unexpectedly high levels.
8 Volume Control Knob
e large rotary knob on the right side of the front panel controls the
system volume level. It is also used for adjustments such as balance , PEQ
parametersforFrequency,QandGain,ToneControlandinputoset.
The volume knob increases and decreases volume in precise 0.5 dB
increments throughout most of the volume range. At extremely low
volume, the step size is increased somewhat to facilitate moving between
extremely low and normal listening levels. e volume range is from
-93.0 dB to +14.0 dB.
e volume control expresses the degree of attenuation being applied to
the incoming signal. erefore, a setting of -23.0 indicates that the signal
is being attenuated by 23.0 dB. A volume setting of 0.0 indicates that no
attenuation is being applied. is is the setting used for the Pass-ru
mode explained in the Source Setup description in the Menu System
section of this manual.
9 Air Intake
e Sigma 2200i employs a small fan mounted on the rear panel and
rotating at low speed to supplement the ventilation of the unit. e air
intake for this fan must not be blocked and from time-to-time should be
cleaned using a vacuum cleaner hose or by removing the lter and washing
it. e lter can be accessed by removing the right side panel (two screws)
and sliding the lter assembly out of the front panel.

14
Rear Panel
e rear panel of the Sigma 2200i is shown above. e numbers in the drawing
refer to the descriptions in this section.
serial number You’llndyourSigma2200iserialnumberlocatedadjacenttotheACMains
Input connector on the rear panel, as shown in the graphic above. Please record
this number for future reference.
And since you have found the serial number, please use it to register your
purchase,ifyouhaven’tdonesoyet.Wemayusetheinformationtoadviseyou
of any updates or other items of interest. Registration is simple, so please register
online at www.classeaudio.com or ll out the registration card and drop it in the
mail.
1 Ethernet Connector
eEthernetconnectionisusedtoenablestreamingofaudiousingApple’s
AirPlayorDLNA.isconnectionalsosupportsIPcontrolforusingthe
Classé App with iOS or Android devices and/or a home automation system
tocontroltheSigma2200iviayourhomeNetwork.
2 Digital Audio Input - USB
e Sigma 2200i supports digital audio sources up to 24-bit/192 kHz via
USB. e rear panel USB Device connector mates with a USB Host such
as a PC or Mac.
3 Digital Audio Inputs - Optical
eSigma2200isupportstwodigitalaudioinputs,withopticalTOSlinkTM
connectorslabeledOPT1andOPT2.eseinputsacceptPCMdata
streams up to 24-bits long and up to 96 kHz sampling frequency. We
recommend using cables that are optimized for digital audio signal transfer.
Your Classé dealer can help you with proper cable selections.
NOTE: e bandwidth limits of TOSlink™ components are very
much strained at a 192 kHz sampling frequency. For that reason
we limit signals using the TOSlink™ connections to a maximum
rate of 96 kHz.
ANALOG AUDIO IN
HDMI IN HDMI OUT
R1 L1
L2 L3
R2 R3
CAUTION! TO REDUCE THE RISK OF ELECTRIC SHOCK, GROUNDING
OF THE CENTER PIN OF THIS PLUG MUST BE MAINTAINED
AVIS! POUR RÉDUIRE LE RISQUE DE CHOC ÉLECTRIQUE
LA FICHE CENTRALE DE LA PRISE DOITÊTR E
BRANCHÉE POUR MAINTENIR LA MISE À LA TERRE
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES.
OPERATION IS SUBJECT TOTHE FOLLOWING TWO CONDITIONS:
(1) THIS DEVICE MAY NOT CAUSE HARMFULINTERFERENCE, AND
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED,
INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.
COAX 1 COAX 2OPT1 OPT2
USB
ETHERNET
DIGITAL I/O & CONTROL
GND
SUB OUT
IN OUT
CLASS 2 WIRINGCLASS 2 WIRING
RIGHT SPEAKER LEFT SPEAKER
100-120~ T6.3AH 250V
220-240~ T3.15AH 250V
1
13 14 15 2 3 4 5
7
6
8
9 10 11
1212

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4 Digital Audio Inputs - Coaxial
e Sigma 2200i supports two digital audio inputs, with SPDIF
connectors labeled COAX1 and COAX2. ese inputs accept PCM data
streams up to 24-bits long and up to 192 kHz sampling frequency. We
recommend using cables that are optimized for digital audio signal transfer
and that carry a 75Ω impedance rating. Your Classé dealer can help you
with proper cable selections.
5 IR Input
Use the IR input when the front panel IR window does not have a clear
line-of-sight with the remote control, for instance, when the Sigma 2200i
is installed in a cabinet. Attach this input to an infrared repeater system to
route signals from the remote control to the Sigma 2200i via a mono mini-
jack (3.5mm phono).
e list of available IR command codes can also be used in macros for
sophisticated remote control systems, facilitating the control of the
Sigma 2200i in the larger context of the complete system.
6 IR Output
Use the IR output to pass IR commands from an external IR transmitter
through the Sigma 2200i to another component, when necessary. e
output uses a mono mini-jack (3.5mm phono) with the same properties as
the diagram in the previous section.
7 HDMI Inputs
e Sigma 2200i supports four HDMI inputs, labeled 1 to 4. ese are
HDMI v.2.0 enabled, supporting 2D and standard 3D video formats at
resolutions up to 2160p @ 24/50/60 fps, Audio Return Channel (ARC),
Deep Color and x.v.Color (xvYCC). HDCP 2.2 is supported on input 4.
Notethatasastereocomponent,the2200idoesnotsupportmultichannel
audio decoding, so HDMI sources should be set to output stereo. is is
usually negotiated automatically between the HDMI source and the 2200i
but if the incoming stream is not stereo, check the HDMI output settings
on the source component to rectify.
8 HDMI Output
e Sigma 2200i HDMI output supports HDMI v2.0 with HDCP2.2
for sources connected to HDMI input 4. It supports 2D and standard 3D
video formats at resolutions up to 2160p (sometimes called 4K video) @
24/50/60 fps, Audio Return Channel (ARC) and Deep Color, x.v.Color
(xvYCC).
NOTE: HDMI is an interactive format, which can occasionally cause
format errors between the source devices and the output display. If you
encounter connectivity problems, troubleshooting techniques that are
eective with ordinary digital and analog signals, such as bypassing the
2200i and connecting the source directly to the display, are inconclusive
with HDMI signals. Consult your Classé dealer for assistance.

16
9 Subwoofer Output
e Sigma 2200i subwoofer output is available on both single-ended RCA
type and balanced XLR type connectors. See Conguration Setup later in
this manual for instructions on how to congure the subwoofer output.
NOTE: e Balanced (XLR) Output pin assignments adhere to
the AES (Audio Engineering Society) “Pin 2 = hot” standard. e
XLR male outputs carry the following pin assignments:
Pin 1: Signal ground
Pin 2: Signal + (non-inverting)
Pin 3: Signal – (inverting)
Connector ground lug: chassis ground
Refer to the operating manual of your balanced-input Subwoofer
amplier to verify that the pin assignments of its input connector
adheres to this standard. If your Subwoofer amplier is not
compliant, it may not pose a problem, but ask your Classé dealer
for assistance.
10 Analog Audio Inputs - Balanced
e Sigma 2200i supports 1pr of XLR type connectors for a balanced
analog source. ey are labeled R1/L1.
NOTE: is input conforms to the AES (Audio Engineering
Society) “pin 2 = hot” convention. e pin assignments of these
XLR-type female output connectors are:
Pin 1: Signal ground
Pin 2: Signal + (non-inverting)
Pin 3: Signal – (inverting)
Connector ground lug: chassis ground
Verify that the source component is compliant with this convention
(Classé components are compliant). If not compliant, contact your
Classé dealer for assistance.
11 Analog Audio Inputs - Single-Ended
e Sigma 2200i supports 2pr of RCA type connectors for single-ended
analog sources. ey are labeled R2/L2 and R3/L3.
NOTE: An optional phono stage may be installed inside the Sigma
2200i. It uses input connectors R2/L2, can be congured for either
MM or MC phono cartridges and oers various custom loading
options. See your Classé dealer/distributor for installation details.

17
12 Speaker Outputs
One pair of high-quality ve-way binding posts is provided for each
amplier channel.
Although the binding posts on your Classé amplier will accept bare wire
connections, we strongly recommend the use of high quality spade or hook
lugs, crimped onto the ends of your speaker wires. Using high quality
connectors will ensure that your speaker connections do not gradually
deteriorate from fraying and oxidizing bare wires. It also helps prevent
accidental short-circuits from poorly-terminated connections.
13 AC Mains Fuse
Your Classé integrated amplier has an AC mains fuse, accessible on the rear
panel. If you suspect that your AC fuse has blown, disconnect your integrated
amplier from the AC mains, as well as from its input connections and
speaker connections, and refer to the appropriate item of the section enitled
Troubleshooting.
14 AC Mains Input
An IEC standard power cord (supplied) is used with the Sigma 2200i. Plug
the cord into the IEC receptacle on the rear panel and the other end into a
suitable wall outlet.
15 Air Exhaust
Warm air from inside the Sigma 2200i is exhausted through the rear panel.
Keep this area clear to avoid restricting the ow of air through the unit.
Do not open your integrated amplier. ere are no user-serviceable parts
within this product.
Danger! Potentially dangerous voltages and current capabilities exist
within your integrated amplifier, even when disconnected
from AC mains. Do not attempt to open any portion of the
amplifier’s cabinet. There are no user-serviceable parts
inside your integrated amplifier. All service of this product
must be referred to a qualified Classé dealer or distributor.

18
The Remote Control
Your Sigma 2200i includes a remote control for the most basic operation of
theintegratedamplierandtransportcontrolofUSBandNetwork-connected
devices. e remote control is shown on the left. e numbers in the drawing
refer to the descriptions that follow.
1 Basic Functions
e three buttons along the top of the remote control groups the following
basic control functions:
• Mute reduces the audio output of the Integrated Amplier to the
preset mute level. See the Mute Setup description in the Menu
System section found later in the manual for further instructions.
• Source Select steps sequentially through the available enabled
sources.
• Standby switches the Integrated Amplier between the Standby
and Operate states.
2 + and - Buttons
e + and - buttons function normally as Volume Control buttons
when the Integrated Amplier is on the home page but serve as up/down
navigation commands when using the remote to navigate the Menu
system. You can customize selected features of the volume control. Refer to
the Volume Setup description in the Menu System section found later in the
manual for further instructions.
3 Transport Control Buttons
e remote control contains three centrally located buttons, providing
basictransportcontrolsforUSB-andNetwork-connectedsources.ese
buttons perform the familiar play/pause, scan/skip forward and scan/skip
backward commands.
4 Function Keys (F1 to F3)
e last three buttons on the remote control are the Function buttons,
or Fkeys, which provide additional exibility to the Sigma 2200i remote
control. ink of them as “favorite” buttons that provide direct access to
specic functions or commands not covered by the other buttons. Refer to
the Remote Fkeys description in the Menu System section found later in
the manual for more information.
1
2
4
F1 F2 F3
3

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5 Using the Remote and Accessing the Battery
e IR Remote ships with a battery already installed. is battery,
a CR2032, 3V is covered by a protective lm that prevents it from
dischargingduringstorage.Tousetheremoteforthersttime,openthe
cover by inserting a large paperclip or similar tool into the hole on the
back cover at an angle to depress the button and release the catch. While
holding the button depressed, slide the rear cover relative to the front
cover as shown. Remove the protective lm and slide the two halves of the
remote back together.

20
Initial Setup
Your Sigma 2200i Stereo Integrated Amplier is delivered with default factory
settings to facilitate initial setup. But we highly recommend that you work with
yourClassédealerforthenalsetupoftheunit.Yourdealer’sknowledgeand
experience with Classé products will ensure that your audio system is optimized
for your listening space.
However,ifyoucan’twaittogetstarted,thissectionisdesignedtoassistyou
in setting up and becoming familiar with the Sigma 2200i hardware. Once the
initial setup is complete, be sure to read the rest of this manual to familiarize
yourself with the daily operation and customizable features of your Sigma 2200i.
Step 1 Connect the Sigma 2200i and all system components to AC
power.
Important! M ake sure everything is turned off before connecting power!
Connecting all system components to AC power, before making any
interconnections between components, ensures that every component has a solid
connection to ground. is lessens the chances of a static discharge that may
damage delicate electronics or your loudspeakers.
Step 2 Choose the appropriate cables.
Beforeyoustartconnectingcomponentstogether,let’stakeaminutetodiscuss
the cables you will be using. e audio inputs and outputs available on the rear
panel include both balanced XLR connectors and unbalanced, or single-ended,
RCA connectors.
Single-ended RCA audio connections are the most popular means of
transmitting audio in consumer electronics. Because single-ended connections
are susceptible to picking up noise, shorter lengths usually perform best. As long
as you use high quality, low capacitance cables, single-ended connections provide
good results.
However, balanced audio connections between components have the potential
to provide the best analog signal connection because they eectively double the
signal strength. More importantly, as compared to single-ended connections,
they signicantly improve resistance to common mode noise, therefore
enhancingaudiotransparency,detail,anddynamics.Tofullyrealizethese
potential benets, high quality interconnect cables are required.
Please consult your local Classé dealer for advice on which cables are best suited
for your system.