Cyrus DAC X Signature User manual

ENGINEERED
TO ENTERTAIN

Cyrus DAC X Signature & DAC XP Signature User Instructions
IMPORTANT! READ BEFORE OPERATING THIS EQUIPMENT................ 1
Power supply:..................................................................................1
Servicing: ...................................................................................... 1
Product service centres: ............................................................... 1
WELCOME TO THE WORLD OF CYRUS! ...............................................2
Preparations for Installation......................................................... 2
Model Differences and Upgrades ................................................. 2
The DAC X Signature upsampling audio DAC .............................. 2
The DAC XP Signature upsampling audio DAC with preamp........2
INSTALLATION (DAC X SIGNATURE).................................................... 3
Key to the rear panel drawing:.................................................... 3
Connecting Digital Audio Sources ................................................ 4
Connecting the DAC X Signature to an amplifier ......................... 4
Connecting to amplifiers with phono inputs ................................ 4
Connecting to amplifiers with balanced inputs............................ 4
Connecting to the Digital Output .................................................. 4
External Regulated Power Supply - PSX-R................................... 4
MC-BUS.......................................................................................... 4
MC-BUS operation ..................................................................... 4
MC-BUS connection ................................................................... 4
MC-BUS configuration................................................................ 4
OPERATION (DAC X SIGNATURE)......................................................... 5
Key to the front panel drawing:................................................... 5
Switching On ................................................................................. 6
Selecting an input ......................................................................... 6
Remote control operation ............................................................. 6
Cyrus system remote controls .................................................... 6
SETTING UP (DAC X SIGNATURE) ........................................................ 7
Phase adjust .................................................................................. 7
Digital Filter Response .................................................................. 7
DACX Connected to:....................................................................... 7
Input display.................................................................................. 7
Input names................................................................................... 7
Restoring factory settings............................................................. 7
INSTALLATION (DAC XP SIGNATURE).................................................. 8
Key to the rear panel drawing..................................................... 8
Connecting Digital Audio Sources ................................................ 9
Connecting Analogue Audio Sources ...........................................9
Connecting Power amplifiers........................................................ 9
Connecting to power amplifiers with phono inputs...................... 9
Connecting to power amplifiers with balanced inputs ................. 9
Fixed output ............................................................................... 9
Connecting a Cyrus Surround Sound decoder ............................. 9
Connecting a Surround Sound decoder (other brand)................. 9
Connecting to the Digital Output .................................................. 9
External Regulated Power Supply - PSX-R................................. 10
MC-BUS........................................................................................ 10
MC-BUS operation ................................................................... 10
MC-BUS connection ................................................................. 10
OPERATION (DAC XP SIGNATURE)..................................................... 11
Key to the front panel drawing.................................................. 11
Switching On ............................................................................... 12
Selecting an input ....................................................................... 12
Volume and Balance.................................................................... 12
Volume..................................................................................... 12
Balance.................................................................................... 12
Mute............................................................................................. 12
Programmable Input Sensitivity ................................................. 12
REMOTE CONTROL OPERATION (DAC XP SIGNATURE) ..................... 13
Remote control introduction:..................................................... 13
Remote control backlight:......................................................... 13
Fitting batteries to the remote control:...................................... 13
Sending commands to Cyrus components:............................... 13
Switching on Cyrus components:.............................................. 13
Cyrus amplifier commands......................................................... 14
Cyrus CD player commands........................................................ 15
Cyrus Audio streamer commands .............................................. 16
Learning TV and Satellite commands......................................... 17
Preparation for learning:........................................................... 17
Learning commands:................................................................ 17
Checking programmed commands:.......................................... 17
Problems with learning:............................................................ 17
Sending TV or SAT commands.................................................... 17
SETTING UP (DAC XP SIGNATURE).................................................... 18
Phase adjust ................................................................................ 18
Filter adjust.................................................................................. 18
Display mode............................................................................... 18
Input names................................................................................. 18
Input trims ................................................................................... 18
Restoring factory settings........................................................... 18
TROUBLESHOOTING GUIDE................................................................ 19
SPECIFICATIONS................................................................................ 19
DAC X Signature .......................................................................... 19
Power Supply ........................................................................... 19
Enclosure ................................................................................. 19
Audio Performance................................................................... 19
DAC XP Signature ........................................................................ 19
Power Supply ........................................................................... 19
Enclosure ................................................................................. 19
Audio Performance................................................................... 19
WARRANTY........................................................................................ 20
WEEE ................................................................................................. 20
CONTENTS

Cyrus DAC X Signature & DAC XP Signature User Instructions
1
WARNING: To reduce the risk of electrical shock do not remove any unit
covers or panels. There are no user serviceable parts in this product.
WARNING: To reduce the risk of electric shock, do not expose this
equipment to rain or moisture.
HEED WARNINGS: All warnings on the product and in the operating
instructions should be adhered to.
READ ALL THE INSTRUCTIONS: All the safety and operating instructions
should be read before the product is operated.
RETAIN INSTRUCTIONS: The safety and operating instructions should be
retained for future reference.
FOLLOW INSTRUCTIONS: All operating and use instructions should be
followed.
CLEANING: Unplug this product from the mains before cleaning. Do not
use liquid or aerosol cleaners. Use a damp cloth for cleaning.
WATER AND MOISTURE: Do not use this product near water - for
example, near a bath tub, wash bowl, kitchen sink, or laundry tub, in a
wet basement; or near a swimming pool and the like. The product must
not be exposed to dripping or splashing and no objects filled with liquids,
such as vases, shall be placed on the product.
HEAT: The product should be situated away from heat sources such
as radiators, stoves, or any other products (including amplifiers) that
produce heat.
VENTILATION: Slots and openings in the cabinet are provided for
ventilation, to ensure reliable operation of the product and to protect it
from overheating and these openings must not be blocked or covered.
The openings should never be blocked by placing the product on a bed,
sofa, rug or similar surface. This product should not be placed in a built-
in installation such as a bookcase or rack unless proper ventilation is
provided or the manufacturer’s instructions have been adhered to.
OBJECT OR LIQUID ENTRY: Never push objects of any kind into this
product through openings as they may touch dangerous voltage points
or short-out parts that could result in a fire or electric shock.
ACCESSORIES: Do not place this product on an unstable cart, stand,
tripod, bracket, or table. The product may fall, causing serious injury to
a child or adult, and serious damage to the product. Use only with a
cart, stand, tripod, bracket or table recommended by the manufacturer,
or sold with the product. Any mounting of the product should follow
the manufacturer’s instructions, and should use a mounting accessory
recommended by the manufacturer.
ATTACHMENTS: Do not use attachments not recommended by the
product manufacturer as they may cause hazards..
POWER CORD PROTECTION: Power supply cords should be routed so
that they are not likely to be walked on or pinched by items placed upon
or against them, paying particular attention to cords at plugs, convenience
receptacles, and the point where they exit from the product.
NAKED FLAMES: No naked flame sources, such as candles, must be
placed on this product. Batteries (battery pack or batteries installed) shall
not be exposed to excessive heat such as sunshine, fire or the like.
LIGHTNING: For added protection for this product during a lightning storm,
or when it is left unattended or unused for long periods of time, unplug it
from the wall outlet and disconnect the antenna or cable system. This will
prevent damage to the product due to lightning and power-line surges.
BATTERIES: Warning : Batteries shall not be exposed to excessive heat
such as sunshine, fire or the like.
CAUTION! POLARISED CONNECTOR (CANADA and USA): To prevent
electrical shock, match wide blade of plug to wide slot, fully insert.
Do not alter or remove this plug if it does not fit your mains power socket.
Have a suitable socket installed by a competent electrician.
Power supply:
The moulded IEC connector of the AC cord supplied plugs into the power
inlet 1@ on the rear of the unit.
The mains supply requirement for your Cyrus unit is marked on a label
on the rear panel. Before connecting, check that this voltage is the same
as your mains supply.
230V Products: Voltage Range 220V-240V
115V Products: Voltage Range 110V-120V
If you move to an area with a different mains voltage, contact your local
Cyrus distributor to have your product converted.
There are no user replaceable fuses in this unit.
Servicing:
Do not attempt to service this product yourself as opening or removing
covers may expose you to dangerous voltage or other hazards. Refer all
servicing to qualified service personnel.
CONDITIONS REQUIRING SERVICE: Unplug this product from the wall
outlet and refer servicing to qualified service personnel when:
When the power supply cord or plug is damaged.•
If liquid has been spilled, or objects have fallen into the product.•
If the product has been exposed to rain or water.•
If the product has been dropped or damaged in any way.•
If the product does not operate normally by following the operating•
instructions. (Adjust only those controls that are covered by the operating
instructions. Improper adjustment of other controls may result in damage
requiring extensive work by a qualified technician to restore the product to
its normal operation).
When the product exhibits a distinct change in performance.•
REPLACEMENT PARTS: When replacement parts are required, be sure the
service technician has used replacements specified by the manufacturer
or have the same characteristics as the original part. Unauthorised
substitutions may result in fire, electric shock, or other hazards.
SAFETY CHECK: Upon completion of any service or repairs to this product,
ask the service technician to perform safety checks to determine that the
product is in proper operating condition.
Product service centres:
For product service or technical advice, contact only authorised Cyrus
service centres. Contact details for Cyrus distributors may be found on
the Cyrus website at www.cyrusaudio.com.
IMPORTANT! Read before operating this equipment
CAUTION: The exclamation mark is to draw your attention
to important instructions and safety procedures in this
manual.
ATTENTION: The lightning flash warns you of the risk
of electrical shock presented by components inside this
product. Unauthorised personnel must not open this unit.
POWER SOURCES: This product should be operated only from the type
of power source indicated on the marking label. If you are not sure of the
type of power supply to your home, consult your product dealer or local
power company. For products intended to operate from battery power,
or other sources, refer to the operating instructions.
OVERLOADING: Never overload wall outlets, extension cords, or integral
convenience receptacles. This can result in an increased risk of fire or
electric shock.
MOVING THE PRODUCT: A product and cart combination should
be moved with care. Sudden stops, excessive force, and uneven
surfaces may cause the product and cart to overturn.

Cyrus DAC X Signature & DAC XP Signature User Instructions
2
WELCOME TO THE WORLD OF CYRUS!
Congratulations on your choice of Cyrus Audio-Visual products. Our state-
of-the-art design technology and outstanding quality of manufacture
has won countless awards around the world. We are confident that you
will derive great pleasure from owning a product from one of the most
recognised and respected manufacturers of hi-fi equipment.
Now is a good time to register your new Cyrus product. Registration takes
only a few minutes, brings the added benefit of a full two year factory
warranty and adds you to our mailing list for future product updates and
upgrades. To register, visit www.cyrusaudio.com and click the ‘Login/
Register’ link.
Please read these instructions carefully before commencing installation.
They provide full guidance to help you install your Cyrus DAC safely and
correctly.
Preparations for Installation
Before installing your DAC check that the following items are included in
the accessory box.
Power Cable•
2 MC-BUS phono cables•
Remote Control Handset (DAC XP Signature only)•
2 AAA Batteries (DAC XP Signature only)•
After removing these items, please retain the packaging.
Install the DAC in a well ventilated location away from sources of high
temperature, dust or humidity. Never stand the DAC under another unit or
on any surface likely to hamper its cooling or ventilation.
IMPORTANT NOTE:- To avoid damage to your system, always ensure
that mains power is disconnected from all system components until
installation is complete.
Model Differences and Upgrades
There are two model versions in the DAC X Signature series –
The DAC X Signature upsampling audio DAC
The DAC X Signature features dual mono DACs and a balanced audio
design throughout the analogue domain. The DAC X Signature is a high-
end upgrade for a CD transport or other digital audio sources, connecting
between the digital outputs of the sources and a preamplifier.
The DAC XP Signature upsampling audio DAC with preamp
The DAC XP Signature shares digital technology with the DAC X Signature,
adding a fully balanced preamplifier stage with additional analogue audio
inputs. The DAC XP Signature can drive a power amplifier directly and
replaces a conventional analogue pre-amplifier in a high-end audio
system.
This handbook includes instructions for the connection and operation of
both the DAC X Signature and DAC XP Signature. Refer to the index to find
instructions for the model you own.
In sections that are common to both models, model differences are shown
in the text where necessary.
A factory upgrade is available for the DAC X Signature to full DAC XP
Signature specification, adding the balanced preamplifier stage.

Cyrus DAC X Signature User Instructions
3
INSTALLATION (DAC X SIGNATURE)
Dual balanced outputs1.
Fixed level DAC outputs2.
MC-BUS connections3.
Optical digital output4.
Input 1 Optical5.
Input 2 Optical6.
R
RR
USE PSX-R ONLY
BALANCED OUT L
LL
PRE
OUT 1 IN 8
PRE
OUT 2 IN 7
FIXED
MADE IN ENGLAND
230V
50/60Hz
25W
OUT
IN
MC-BUS
IN 3
IN 2IN 1
IN 4
OUT 1
IN 6
IN 5
abcdef
1!1@
ghi1)
Input 3 Digital7.
Input 4 Digital8.
Input 5 Digital9.
Input 6 Digital10.
PSX-R connection11.
AC mains inlet12.
Key to the rear panel drawing:
NOTE: When connecting inputs to the DAC X Signature, ensure that
only digital audio sources are connected to ‘Digital’ inputs.

Cyrus DAC X Signature User Instructions
4
Connecting Digital Audio Sources
The digital audio inputs of the DAC X Signature are compatible with a
number of different digital audio sources. These include-
Digital Audio output from a CD player•
DVD players (for replay of 2 channel PCM programs only)•
Digital tape/disc recorders•
Digital Radio•
Digital Satellite receivers (for replay of 2 channel PCM programs•
only)
Using a suitable Toslink optical or Digital phono interconnect, connect
each digital audio source to one of the inputs 1~6. Make a note of the
input number used for each source as the inputs of the DAC X Signature
can be re-named at the set-up stage.
Connecting the DAC X Signature to an amplifier
The DAC X Signature requires an external amplifier or preamplifier to
provide input selection and volume control functions for the system, and
to drive the speakers. Two output options are available from the DAC X
Signature via either standard RCA phono outputs, or via balanced audio
connections.
CAUTION:- Do not connect power amplifiers to the Fixed output.
Connecting to amplifiers with phono inputs
With suitable phono interconnects, connect from the Fixed Out terminals
bto a suitable amplifier line input. All line level inputs, such as CD,
TU, AU, AV are suitable. We recommend selection of an input that
corresponds to the primary source connected to the DAC X Signature. If
the primary source is a CD player, the CD input is recommended, if the
primary source is a DVD player, the AV input is recommended etc. For
Cyrus amplifiers with optional MC-BUS connection, see also the section
‘MC-BUS connections’.
Connecting to amplifiers with balanced inputs
If the amplifier is equipped with balanced inputs, the balanced outputs of
the DAC X Signature may be used. With suitable balanced interconnects
fitted with XLR connectors, connect from the Balanced Output terminals
aof the DAC X Signature to the input of the amplifier. Dual balanced
outputs are provided for connection to a second amplifier or recording
device with balanced input.
Connecting to the Digital Output
An optical Digital Output dis provided for the connection of another
digital device to the DAC X Signature. This may include such devices
as a multi-channel surround decoder or a digital tape/disc recorder. The
currently selected digital input signal will be routed to this output.
External Regulated Power Supply - PSX-R
The PSX-R is a unique DC power supply that will upgrade the sonic
performance of your DAC X Signature and other Cyrus products. When a
DAC X Signature / PSX-R combination is installed, the analogue section
of the DAC stage is powered from this clean, stable power source while
other requirements are supplied internally. This ensures complete
isolation of the sensitive analogue sections reducing AC mains-borne
noise and power supply ripple.
To connect the PSX-R to the DAC X Signature, plug the connector on the
umbilical cord of the PSX-R into the Multi-Pole socket on the rear of the DAC
X Signature 1!. You will need a mains supply for both units.
NOTE: Connection of a PSX-R is detected automatically, so no internal
adjustments are required.
MC-BUS
MC-BUS operation
Connecting the MC-BUS sockets cof the DAC X Signature to those of
other Cyrus products is an option that provides unified system power
control. With MC-BUS connections established the power function of
all connected Cyrus components may be controlled from the system
amplifier or its remote control.
All connected components will also set to Standby when the amplifier is
set to Standby.
MC-BUS connection
An MC-BUS loop is established by connecting single phono cables from
the MC-BUS output of one unit to the MC-BUS input of another. Complete
the loop by returning the MC-BUS output of the final component to the
MC-BUS input of the first. The diagram shows an example of MC-BUS
wiring for a Cyrus DAC X Signature with a CD player, tuner and amplifier.
Cyrus Tuner
Cyrus Amplifier or
Power Amplifier
Cyrus DAC X+
Signature
Cyrus CD player
MC-BUS out
MC-BUS out
MC-BUS out
MC-BUS out
MC-BUS in
MC-BUS in
MC-BUS in
MC-BUS configuration
Within a Cyrus system, the DAC X Signature may be connected to either
the CD, TU, AU or AV input, as selected by the user to best match their
system components. To ensure that the DAC X Signature will power
on when the correct input is selected, the MC-BUS response may be
configured accordingly.
The factory response enables the DAC X Signature to switch on when the
CD input is selected from the amplifier. To change the response, refer to the
paragraph ‘DAC X Signature Connected to’ in the section ‘Setting up the DAC
X Signature’.

Cyrus DAC X Signature User Instructions
5
OPERATION (DAC X SIGNATURE)
Key to the front panel drawing:
Standby key1.
Standby light2.
Display window3.
Setup adjust4.
Setup select5.
Input select6.
CD
Sample rate 44.1kHz
SETUP
INPUT
DAC X
ef
abcd

Cyrus DAC X Signature User Instructions
6
Switching On
The mains power to the DAC X Signature should normally be left on unless
left unattended for a long period when the mains power at the wall socket
should be switched off or the product disconnected from the AC supply.
When power is applied, the STANDBY key ais used for power control.
The Standby light bshows red when the DAC X Signature is in Standby
and green when operational.
Selecting an input
Inputs may be selected from the front panel INPUT SELECT buttons f. As
a new input is selected the input name/number are displayed briefly. The
main display indication for input can be selected from the two options
available from the setup menu.
The factory default ‘small input’ display option will also identify the
sample rate of the selected source and indicate ‘Invalid Audio Format’
for program material which the DAC X Signature will not decode (such as
multi-channel digital sound from DVD players or satellite receivers).
Remote control operation
Cyrus system remote controls
For convenience of operation, the DAC X Signature will respond to CD
system select commands from a Cyrus amplifier or system remote
control, switching on each time the CD system is selected and switching
off with power off commands. If the DAC X Signature is connected to
a different input (TU, AUX or AV) the remote response may be changed
through the set-up menu to match the connected input. Refer to the
paragraph ‘DACX connected to:’ in the ‘Setting up the DAC X Signature’
section to change the response.

Cyrus DAC X Signature User Instructions
7
SETTING UP (DAC X SIGNATURE)
There are many configuration options available in the setup menu to customise
the DAC X Signature to best match each individual system.
To enter the menu system, press the front panel SETUP key f. Turn the
Rotary control eto scroll through the options available on the display.
Press the Rotary control eto select the option displayed. During the
setup sequence, you can move to the next or previous step by pressing
the Input up or down buttons.
Press the SETUP fkey to exit setup and save any changed settings.
Note that the setup sequence will exit, saving any changed settings after
10 seconds of inactivity or after the last option ‘Name input 6’ has been
completed. The setup menu options are shown here –
Input display
Small Input Names
Display Mode
There are two modes of display operation. The small setting will show
a two-line display with the selected input in the display centre and the
current sample rate/lock status at the bottom. The large setting will show
a single line display with a larger input legend.
Input names
Input name
Input 1
DVD
<>
When the DAC X Signature leaves the factory, the input names are set to
correspond to the rear panel connections, for example Input 1 will display
as Input 1.
The name of any input may be changed to a choice from the following
list-
No source (off)•
LaserDisc, DVD, DVD 2, DVD-A, CD, CD 2•
Linkserver, Linkport•
Jukebox, Phono•
Tuner, DAB, TV, AV, Cyrus AV, Satellite, Satellite 2, Cable•
Video, VCR, VCR 2, Tape, MiniDisc, DAT•
PC, Games, Keyboard, Aux, AV Direct, Stream X•
To change the names of the inputs, we recommend making a list of each
input number with your preferred name from the choices above before
setting the names.
No source is a special function name, used to name inputs that have no
source connected to them. These input numbers will not then appear in
the input selector sequence.
Restoring factory settings
You can also restore all configuration options to the initial default settings
that were applied at the factory.
NOTE: This operation is not reversible.
To restore factory settings, disconnect mains power from the unit. Now
re-connect mains power while holding down the Standby key.
Digital filter
Display options
Connected to:
Name Input 1 Choose a name for input 1 from the name list
Choose a name for input 2 from the name list
Choose a name for input 3 from the name list
Choose a name for input 4 from the name list
Choose a name for input 5 from the name list
Choose a name for input 6 from the name list
Name Input 2
Name Input 3
Name Input 4
Name Input 5
Name Input 6
Storing settings Save settings and exit setup
Phase adjust Select normal or inverted
Select fast or slow roll off
Select large or small
Select CD, TU, AU or AV
Setup
Phase adjust
Normal
Phase
This menu option sets the audio phase for the DAC. The factory setting is
normal. Some listeners may prefer the inverted setting with their systems
or for when playing particular recordings.
Digital Filter Response
Fast Roll-off
Digital Filter Response
This menu option gives two settings for the digital filtering of the DAC
stage. Choose your preference of Fast or Slow roll-off by auditioning
some of your favourite tracks with each setting.
DACX Connected to:
This option may be used to change the remote control and MC-BUS
response of the DAC X Signature. From the factory, the DAC X Signature
will power on in response to a CD select command from a Cyrus remote
control or from a CD select signal sent via MC-BUS, so if the DAC X
Signature is connected to the CD input of the amplifier, no change will
be required to this setting. If, however, the DAC X Signature is connected
to the TU, AU or AV inputs of the amplifier, the appropriate remote and
MC-BUS responses may be selected through this menu option to ensure
power-on compatibility with the amplifier.

Cyrus DAC XP Signature User Instructions
8
INSTALLATION (DAC XP SIGNATURE)
NOTE: When connecting inputs to the DAC XP Signature, ensure that only
digital audio sources are connected to ‘Digital’ inputs.
Dual balanced preamp outputs1.
Fixed level DAC outputs2.
MC-BUS connections3.
Optical digital output4.
Input 1 Optical5.
Input 2 Optical6.
Input 3 Digital7.
Input 4 Digital8.
R
RR
USE PSX-R ONLY
BALANCED OUT L
LL
PRE
OUT 1 IN 8
PRE
OUT 2 IN 7
FIXED
MADE IN ENGLAND
230V
50/60Hz
25W
OUT
IN
MC-BUS
IN 3
IN 2IN 1
IN 4
OUT 1
IN 6
IN 5
abcdef ghi
1!1@1#
1$
1%
1)
Input 5 Digital9.
Input 6 Digital10.
PSX-R connection11.
AC mains inlet12.
Input 7 Analogue13.
Input 8 Analogue14.
Dual preamp outputs15.
Key to the rear panel drawing

Cyrus DAC XP Signature User Instructions
9
Connecting Digital Audio Sources
The digital audio inputs of the DAC XP Signature are compatible with a
number of different digital audio sources. These include-
Digital Audio output from a CD player•
DVD players (for replay of 2 channel PCM programs only)•
Digital tape/disc recorders•
Digital Radio•
Digital Satellite receivers (for replay of 2 channel PCM programs•
only)
Using a suitable Toslink optical or Digital phono interconnect, connect
each digital audio source to one of the inputs 1~6. Make a note of the
input number used for each source as the inputs of the DAC XP Signature
can be re-named at the set-up stage.
Connecting Analogue Audio Sources
Analogue Inputs 7-8 are available for the connection of stereo analogue
audio sources to the DAC XP Signature. Inputs 7-8 are intended for use
with analogue program sources which include-
Analogue output from CD/DVD Players•
Televisions•
Analogue Satellite Receivers•
FM Radio tuners•
Analogue VCRs/Tape recorders•
Surround decoders•
Connecting Power amplifiers
External power amplifiers are necessary to drive the system speakers.
Both stereo and high power monoblock Cyrus power amplifiers are
available to partner the DAC XP Signature and a choice of RCA phono or
balanced outputs is provided.
NOTE:- Take care to connect each of the DAC XP Signature output
channels to the correct power amplifier and loudspeaker.
Connecting to power amplifiers with phono inputs
With suitable phono interconnects, connect from the Pre Out terminals
1% to the power amplifier inputs. The system loudspeakers may then be
connected to each power amplifier. Dual outputs are provided to enable
the connection of two amplifiers for bi-amping.
Connecting to power amplifiers with balanced inputs
With suitable Balanced interconnects, connect from the Balanced Output
terminals ato the power amplifier inputs. The system loudspeakers may
then be connected to each power amplifier. Dual outputs are provided to
enable the connection of two amplifiers for bi-amping.
Fixed output
The Fixed output is connected directly to the internal DAC stage of the
DAC XP Signature and bypasses the internal preamplifier and volume
control. It may be used to feed the DAC stage output to an external system
preamplifier, or for high quality tape recording from digital sources.
NOTE:- Analogue inputs 7 and 8 are not routed to the Fixed output.
CAUTION:- Do not connect power amplifiers to the Fixed output.
Connecting a Cyrus Surround Sound decoder
In a Cyrus multi-channel surround sound system the surround decoder
may be connected through the DAC XP Signature to share the same front
channel power amplifiers.
In this case, connect a stereo phono interconnect from the front channel
outputs of the surround decoder to the Input 7 sockets 1# of the DAC
XP Signature. For this system to function correctly both the DAC XP
Signature and the Cyrus surround decoder must be included in an MC-
BUS connection loop and the ‘Cyrus AV’ input name must be set for Input
7 (see ‘MC-BUS’ section and ‘Input names’ in the ‘Setup menu’ section).
When set up in this way, the DAC XP Signature will automatically check
for the presence of the decoder when the ‘Cyrus AV’ input is selected,
then lock the DAC XP Signature volume setting to an appropriate level.
Connecting a Surround Sound decoder (other brand)
If your system includes a multi-channel surround sound decoder (but not
a Cyrus model), it may be connected through your DAC to drive the front
channel speakers.
In this case, connect a stereo phono interconnect from the front channel
outputs of the surround decoder to one of the Analogue Inputs of the DAC.
For this system to function correctly, the ‘AV Direct’ input name must be
set for the input used (see ‘Input names’ in the ‘Setup menu’ section).
When set up in this way, the DAC will automatically lock its volume setting
to a fixed level to match the output of the surround decoder.
CAUTION: The ‘AV Direct’ input name should only be used for surround
decoders that include a volume control, as the volume control of your DAC
will be fixed at a very high level.
Connecting to the Digital Output
An optical Digital Output dis provided for the connection of another
digital device to the DAC XP Signature. This may include such devices
as a multi-channel surround decoder or a digital tape/disc recorder. The
currently selected digital input signal will be routed to this output.

Cyrus DAC XP Signature User Instructions
10
External Regulated Power Supply - PSX-R
The PSX-R is a unique DC power supply which will upgrade the sonic
performance of your DAC XP Signature and other Cyrus products. When
a DAC XP Signature / PSX-R combination is installed, the analogue
section of the DAC stage is powered from this clean, stable power source
while other requirements are supplied internally. This ensures complete
isolation of the sensitive analogue sections reducing AC mains-borne
noise and power supply ripple.
To connect the PSX-R to the DAC XP Signature, plug the connector on the
umbilical cord of the PSX-R into the Multi-Pole socket on the rear of the
DAC XP Signature 1!. You will need a mains supply for both units.
NOTE: Connection of a PSX-R is detected automatically, so no internal
adjustments are required.
MC-BUS
MC-BUS operation
Connecting the MC-BUS sockets cof the DAC XP Signature in an MC-BUS
system provides unified system power control. With MC-BUS connections
established the power function of all connected Cyrus components may
be controlled from the DAC XP Signature front panel or remote control.
Refer to the following table for Cyrus components that will be activated by
the DAC XP Signature when the inputs have been named as listed -
Input name Power on response
CD CD players, power amplifiers
TUNER Tuners, power amplifiers
AV DVD players, power amplifiers
CYRUS AV DVD players, surround decoders, power amplifiers
DVD DVD players, power amplifiers
Follow the instructions in section ‘Setting up the DAC XP Signature’ to set
the listed input names.
All connected components will also set to Standby when the DAC XP
Signature is set to Standby.
MC-BUS connection
An MC-BUS loop is established by connecting single phono cables from
the MC-BUS output of one unit to the MC-BUS input of another. Complete
the loop by returning the MC-BUS output of the final component to the
MC-BUS input of the first. The diagram shows an example of MC-BUS
wiring for a Cyrus DAC XP Signature with a CD player, tuner and power
amplifier.
Cyrus Tuner
Cyrus Amplifier or
Power Amplifier
Cyrus DAC XP+
Signature
Cyrus CD player
MC-BUS out
MC-BUS out
MC-BUS out
MC-BUS out
MC-BUS in
MC-BUS in
MC-BUS in

Cyrus DAC XP Signature User Instructions
11
OPERATION (DAC XP SIGNATURE)
Standby key1.
Standby light2.
Remote eye3.
Display window4.
Level control and setup adjust5.
Key to the front panel drawing
Setup select6.
Channel balance select7.
Mute8.
Input select9.
-27
CD
Sample rate 44.1kHz
MUTE BAL SETUP
INPUT
DAC XP
fghi
ab cd e

Cyrus DAC XP Signature User Instructions
12
Switching On
The mains power to the DAC XP Signature should normally be left on
unless left unattended for a long period when the mains power at the
wall socket should be switched off or the product disconnected from the
AC supply.
When power is applied, the STANDBY key ais used for power control.
The Standby light bshows red when the DAC XP Signature is in Standby
and green when operational.
Selecting an input
Inputs may be selected from the front panel INPUT SELECT buttons ior
with the remote control INPUT SELECT keys. As a new input is selected
the input name/number are displayed briefly. The main display indication
for input/volume can be selected from the three options in the setup
menu.
The factory default ‘small input’ display option will also identify the
sample rate of the selected source and indicate ‘Invalid Audio Format’ for
program material which the DAC XP Signature will not decode (such as
multi-channel digital sound from DVD players or satellite receivers).
Volume and Balance
The level control eof the DAC XP Signature performs the dual functions
of volume and balance.
Volume
In normal mode the level control sets the volume in 1dB steps. A bargraph
and a numeric scale at the top of the display window show the current
volume setting. The last used volume setting is stored when the unit is
set to standby.
If the volume is left at an abnormally high volume level before entering
standby, the level will be reduced automatically to a safe level of –15dB
for next use.
Balance
Press the balance control key gto change the mode of the front panel
rotary control eto set Left/Right Balance. The volume display will also
change to show a graphic and numeric display of the balance setting.
Mute
Pressing the MUTE Key hwill mute the volume to minimum level without
disturbing the existing volume setting. When muted the display will show
that volume is muted. Move the volume knob up or press the Mute key to
fade back up to the original volume setting.
Programmable Input Sensitivity
You may find an audible difference in level when switching from digital
inputs to one of the two analogue inputs due to the differing outputs of
your source components. The unique calibration memory of the DAC XP
Signature can be programmed to match the sensitivity of these inputs
with reference to the digital inputs. Input sensitivity settings are made
through the setup menu. Refer to the section ‘Setting up the DAC XP
Signature’ for more details.

Cyrus DAC XP Signature User Instructions
13
REMOTE CONTROL OPERATION (DAC XP SIGNATURE)
Remote control introduction:
The iR14 remote control will send commands to Cyrus amplifiers, CD
players and Audio streamers*.
The remote control can also be programmed with the commands from
two other remote control handsets. These will normally be for your TV
and a Satellite or terrestrial TV set-top box, programmed to the TV and
SAT buttons, but could also be other audio components such as a Cyrus
tuner or DVD player etc.
*NOTE: It may be necessary to upgrade the firmware in an Audio streamer
to enable Infra-red remote control operation.
Remote control backlight:
The remote control keypad includes a back-light. The back-light will
switch on automatically when moved or when a command is sent.
Fitting batteries to the remote control:
The battery compartment is on the back of the remote control.
Press the catch on the battery cover and lift off the cover.1.
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SATTV
STORE
MENU
ENTER
SELECT
LIST
CH
SETUP
abc def
ghi jkl mno
pqrs tuv wxyz
GUIDE
INFO
TEXT
TV/AV
CONTROL
SOURCE
Switching on Cyrus components:
Press one of the keys in the SOURCE group.
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STORE
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ENTER
SELECT
LIST
CH
SETUP
abc def
ghi jkl mno
pqrs tuv wxyz
GUIDE
INFO
TEXT
TV/AV
CONTROL
SOURCE
NOTE: If an input has been named CD, the correct input will also be
selected.
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SELECT
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abc def
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pqrs tuv wxyz
GUIDE
INFO
TEXT
TV/AV
CONTROL
SOURCE
Sending commands to Cyrus components:
AAA
AAA
a
b
Slide a AAA battery under the2.
retaining hook in the upper half
of the battery compartment as
shown.
Fit a second AAA battery into3.
the remaining space.
Replace the battery cover.4.
Replace the handset batteries only with AAA batteries of the same voltage
and type.
Discard used batteries in accordance with recycling regulations in force
in your area.
Press the CYRUS key to•
set the remote control
to Cyrus mode.
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SELECT
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abc def
ghi jkl mno
pqrs tuv wxyz
GUIDE
INFO
TEXT
TV/AV
CONTROL
SOURCE
Press• or to
switch on and send
commands to a Cyrus
amplifier.
Press the• key
to switch on a Cyrus
CD player and send
commands to a
Cyrus CD player and
amplifier.
Press the• key to
switch on a Cyrus
Audio streamer and
send commands to a
Cyrus Audio streamer.

Cyrus DAC XP Signature User Instructions
14
Cyrus amplifier commands
Press the CYRUS key to set the remote control to Cyrus mode.•
You can now control the Cyrus amplifier. The CYRUS key will flash red
when commands are being sent in Amplifier mode.
The Amplifier mode commands available are listed below –
Set Cyrus amplifiers, CD players and Audio streamers to Standby.1.
Set the handset to send commands to Cyrus components.2.
Send commands to a Satellite receiver (or other device programmed3.
to use this key).
Set the handset to send commands to an amplifier and CD player.4.
Step to the next amplifier input.5.
No command for an amplifier.6.
No command for an amplifier.7.
No command for an amplifier.8.
No command for an amplifier.9.
No command for an amplifier.10.
No command for an amplifier.11.
No command for an amplifier.12.
Amplifier mute.13.
No command for an amplifier.14.
No command for an amplifier.15.
No command for an amplifier.16.
No command for an amplifier.17.
No command for an amplifier.18.
No command for an amplifier.19.
No command for an amplifier.20.
No command for an amplifier.21.
Setup key for programming TV/SAT keys.22.
No command for an amplifier.23.
No command for an amplifier.24.
No command for an amplifier.25.
No command for an amplifier.26.
No command for an amplifier.27.
Volume down.28.
Volume up.29.
Balance.30.
No command for an amplifier.31.
No command for an amplifier.32.
No command for an amplifier.33.
No command for an amplifier.34.
Display off.35.
No command for an amplifier.36.
Step to the previous input.37.
Set the handset to send commands to an amplifier and Audio38.
streamer.
Send commands to a TV (or other device programmed to use this39.
key).
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abc def
ghi jkl mno
pqrs tuv wxyz
GUIDE
INFO
TEXT
TV/AV
CONTROL
SOURCE
a
b
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Cyrus DAC XP Signature User Instructions
15
Cyrus CD player commands
Press the CYRUS key•
Press the• key to set the remote control to CD mode.
The key will light red. You can now control both a Cyrus CD player and
amplifier. The key will flash red when commands are being sent in
CD mode.
The CD mode commands available are listed below –
Set Cyrus amplifiers, CD players and Audio streamers to Standby.1.
Set the handset to send commands to an amplifier.2.
Send commands to a Satellite receiver (or other device programmed3.
to use this key).
Set the handset to send commands to an amplifier and CD player.4.
Step to the next amplifier input.5.
No command for a CD player.6.
CD player repeat.7.
No command for a CD player.8.
CD player next track.9.
CD player search forwards.10.
CD player previous track.11.
No command for a CD player.12.
Amplifier mute.13.
No command for a CD player.14.
No command for a CD player.15.
CD player audio phase. Changes in phase are subtle and are best16.
established from the listening position. When the phase setting is
changed, the display text area will show the message ‘Phase Normal’
or ‘Phase Invert’. The performance of the CD player is unaffected
whether the signal is in normal or phase inverted mode.
CD player stop.17.
CD player search forwards.18.
No command for a CD player.19.
CD player next track.20.
CD player numeric keypad. Enter a one or two digit track number to21.
jump to a specific track.
Setup key for programming TV/SAT keys.22.
CD player memory store.23.
CD player previous track.24.
CD player pause.25.
CD player search back.26.
CD player play/pause.27.
Amplifier volume down.28.
Amplifier volume up.29.
Amplifier balance.30.
No command for a CD player.31.
CD player search back.32.
No command for an CD player.33.
No command for a CD player.34.
CD player display off.35.
CD player display mode. Choose track elapsed time or disc remaining36.
time.
Step to the previous amplifier input.37.
Set the handset to send commands to an amplifier and Audio38.
streamer.
Send commands to a TV (or other device programmed to use this39.
key).
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STORE
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ENTER
SELECT
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CH
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abc def
ghi jkl mno
pqrs tuv wxyz
GUIDE
INFO
TEXT
TV/AV
CONTROL
SOURCE
a
b
c
d
e
f
g
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1)
1!
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1#
1$
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1^
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Cyrus DAC XP Signature User Instructions
16
Cyrus Audio streamer commands
Press the CYRUS key•
Press the• key to set the remote control to Audio streamer mode.
The key will light red. You can now control both a Cyrus Audio streamer
and amplifier or an Audio streamer that includes an amplifier. The key
will flash red when commands are being sent in Audio streamer mode.
The Audio streamer mode commands available are listed below –
Set Cyrus amplifiers, CD players and Audio streamers to Standby.1.
Set the handset to send commands to a Cyrus amplifier.2.
Send commands to a Satellite receiver (or other device programmed3.
to use this key).
Select an input named CD and set the handset to send commands to4.
an amplifier and CD player.
Step to the next amplifier input.5.
No command for an audio streamer.6.
Audio streamer repeat.7.
Audio streamer display information.8.
Audio streamer cursor up.9.
Audio streamer cursor right.10.
Audio streamer cursor down.11.
No command for an audio streamer.12.
Amplifier mute.13.
No command for an audio streamer.14.
No command for an audio streamer.15.
No command for an audio streamer.16.
Audio streamer stop.17.
No command for an audio streamer.18.
No command for an Audio streamer.19.
Audio streamer next track.20.
Audio streamer alpha-numeric keypad.21.
Setup key for programming TV/SAT keys.22.
No command for an Audio streamer.23.
Audio streamer previous track.24.
Audio streamer pause.25.
No command for an audio streamer.26.
Audio streamer play/pause.27.
Amplifier volume down.28.
Amplifier volume up.29.
Amplifier balance.30.
Audio streamer back.31.
Audio streamer cursor left.32.
Audio streamer select.33.
Audio streamer home.34.
Audio streamer display off.35.
No command for an Audio streamer.36.
Step to the previous amplifier input.37.
Set the handset to send commands to an amplifier and Audio38.
streamer.
Send commands to a TV (or other device programmed to use this39.
key).
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STORE
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abc def
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INFO
TEXT
TV/AV
CONTROL
SOURCE
a
b
c
d
e
f
g
h
i
1)
1!
1@
1#
1$
1%
1^
1&
1*
1(
2)
2!
2@
2#
2$
2%
2&
2^
2*
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3)
3!
3@
3#
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Cyrus DAC XP Signature User Instructions
17
Learning TV and Satellite commands
In addition to controlling Cyrus components, the remote control can
learn the commands from two other remote control handsets. These will
normally be a TV and a Satellite or terrestrial TV set-top box, programmed
to the TV and SAT buttons, but could also be other audio components
including a Cyrus tuner or DVD player etc.
All keys may be programmed with the exception of the groups marked
CONTROL and SOURCE and the SETUP key.
Preparation for learning:
Check the following points before attempting to learn any commands -
Check that both remote controls have fresh batteries.•
Choose a location on a tabletop that is not brightly lit. Subdued light•
is better, away from bright natural or indoor lighting.
Check that you have enough time to spare to complete the learning•
process for all the keys you want to use.
Learning commands:
In this example, the Cyrus remote control will be learning commands
from a ‘reference’ Satellite receiver remote control.
Set the two remote controls up facing each other, spaced by about1.
5cm.
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ENTER
SELECT
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CH
SETUP
abc def
ghi jkl mno
pqrs tuv wxyz
GUIDE
INFO
TEXT
TV/AV
CONTROL
SOURCE
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SATTV
STORE
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ENTER
SELECT
LIST
CH
SETUP
abc def
ghi jkl mno
pqrs tuv wxyz
GUIDE
INFO
TEXT
TV/AV
CONTROL
SOURCE
The keypad will light and the key you selected will be red.
Press the TV or SAT2.
key to select the
mode that you want
to program.
Press and hold the3.
SETUP key.
The mode key will change to white. After about three seconds, the mode
key will light red again. This indicates that the remote control is ready to
learn codes.
Release the SETUP key.4.
The remote control is now waiting to learn commands. The keypad will
light continually and the mode key will light pale red.
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STORE
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SELECT
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abc def
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GUIDE
INFO
TEXT
TV/AV
CONTROL
SOURCE
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789
0
AUDIO SUB
TTX GUIDE FAV
INFO TV/R
OK
LIST EXIT
AD
ZOOM
MENU
VOL CH
5cm
On the reference remote control, press and hold the first key you5.
want to learn (for example, volume up) until the mode key flashes
red.
This indicates that the command has been received.
Release the key on the reference remote control.6.
Press a key on the Cyrus remote control (volume up in this example)7.
to select where you want to save that command.
The mode key will stop flashing. This indicates that the command has
been saved successfully.
If the learning process was successful, the remote control will be ready
to learn the next command.
Repeat steps 5 to 7 for each command you want to learn.8.
When you have completed learning all commands -
Press the SETUP key.•
The mode key will change to white. After a few seconds the backlight
will switch off.
Checking programmed commands:
Select the mode that you just programmed and check that the•
commands were learned successfully.
NOTE: The TV or SAT mode key should flash red when sending a
command. If the mode key is not flashing, then the command has not
learned correctly.
Make a note of any commands that have not programmed correctly•
and repeat the learning process to add these in.
NOTE: When you start the learning process it does not erase any
programmed keys so you can re-program individual keys if required.
Problems with learning:
If none of the commands have learned correctly, try re-starting the
learning process again. Test a few keys first to ensure that your handset
is compatible for learning. If the test works then continue to program the
rest of the commands you need.
If you still have problems, check carefully that the mode light is flashing
correctly as you send a command to learn. If not, it may be that the
batteries need replacement in the reference handset or that the spacing
between the handsets is not ideal. Try adjusting the spacing between the
handsets and repeating the learning process.
If you continue to have problems, it may be that your handset is
incompatible with the learning process. This could happen with an older
design of handset or one that has an unusual code-set.
Sending TV or SAT commands
Once you have programmed all the keys with the commands you want,
you can use the remote control to send commands to your TV or Satellite
receiver etc.
Press the TV or SAT key to select the mode you want.•
Press the command key.•
The mode key will flash red when sending a programmed command.

Cyrus DAC XP Signature User Instructions
18
SETTING UP (DAC XP SIGNATURE)
There are many configuration options available in the setup menu to
customise the DAC XP Signature to best match each individual system.
To enter the menu system, press the front panel SETUP key f. Turn the
Rotary control eto scroll through the options available on the display.
Press the Rotary control eto select the option displayed. During the
setup sequence, you can move to the next or previous step by pressing
the Input up or down buttons.
Press the SETUP fkey to exit setup and save any changed settings. Note
that the setup sequence will exit, saving any changed settings after 10
seconds of inactivity or after the last option ‘Set the sensitivity for input
8’ has been completed.
The setup menu options are shown here –
Phase adjust
Normal
Phase
This menu option sets the audio phase for the DAC. The factory setting is
normal. Some listeners may prefer the inverted setting with their systems
or for when playing particular recordings.
Filter adjust
Fast Roll-off
Digital Filter Response
This menu option gives two settings for the digital filtering of the DAC
stage. Choose your preference of Fast or Slow roll-off by auditioning
some of your favourite tracks with each setting.
Display mode
Small Input Names
Display Mode
There are three modes of display operation.
The ‘small input’ setting will show a three line display with the volume
reading at the top of the display, the selected input in the display centre
and the current sample rate/lock status at the bottom.
The ‘large input’ setting will show a two line display with the volume
reading at the top and a larger input legend below.
The ‘large volume’ setting will display large volume characters at the
bottom of the screen with the bargraph above.
Digital Filter
Display Mode
Name Input 1 Choose a name for input 1 from the name list
Choose a name for input 2 from the name list
Choose a name for input 3 from the name list
Choose a name for input 4 from the name list
Choose a name for input 5 from the name list
Choose a name for input 6 from the name list
Choose a name for input 7 from the name list
Choose a name for input 8 from the name list
Set the sensitivity for input 7
Set the sensitivity for input 8
Name Input 2
Name Input 3
Name Input 4
Name Input 5
Name Input 6
Name Input 7
Name Input 8
Trim Input 7
Trim input 8
Storing settings Save settings and exit setup
Phase adjust Select normal or inverted
Select fast or slow roll off
Select large input, small input or large volume
Setup
Input names
Input name
Input 1
DVD
<>
When the DAC XP Signature leaves the factory, the input names are set
to correspond to the rear panel connections, for example Input 1 will
display as Input 1.
The name of any input may be changed to a choice from the following
list-
No source (off)*•
LaserDisc, DVD, DVD 2, DVD-A, CD, CD 2•
Linkserver, Linkport•
Jukebox, Phono•
Tuner, DAB, TV, AV, Cyrus AV*, Satellite, Satellite 2, Cable•
Video, VCR, VCR 2, Tape, MiniDisc, DAT•
PC, Games, Keyboard, Aux, AV Direct*, Stream X.•
To change the names of the inputs, we recommend making a list of each
input number with your preferred name from the choices above before
setting the names.
There are three special function input names marked *.
‘No source’ is used to name inputs which have no source connected to
them. These input numbers will not then appear in the input selector
sequence.
‘Cyrus AV’ is reserved for the connection of Cyrus surround sound
decoders. When a Cyrus surround decoder is connected to an analogue
input named ‘Cyrus AV’ the DAC XP Signature will check the system
for the presence of a Cyrus surround decoder and, if found, lock out its
volume control at a precise setting. Normal volume operation will be
restored when any other input is selected.
‘AV Direct’ is reserved for the connection of non-Cyrus surround decoders
to an analogue input. This input name must only be used for this purpose
as the volume level will lock to a very high setting (-6dB) when AV Direct
is selected.
Input trims
Offset
Input 7
+4dB
It is possible to adjust the sensitivity of analogue inputs 7 and 8 by
selecting the appropriate trim option from the menu. This enables the
volume level when playing low or high output source components such
as tape decks or tuners to be equalised with the digital system sources.
Restoring factory settings
You can also restore all configuration options to the initial default settings
that were applied at the factory.
NOTE: This operation is not reversible.
To restore factory settings, disconnect mains power from the unit. Now
re-connect mains power while holding down the Standby key.