Digital Filter Response
Fast Roll-off
Phase
Normal
Display mode
Small Input Names
Offset
Input 7
+4dB
Input name
Input 1
DVD
< >
Fig 4a
Fig 4b
Fig 4c
Fig 4d
Fig 4e
Cyrus Tuner
Cyrus Amplifier or
Power Amplifier
Cyrus DAC X+/XP+
MC-BUS
Cyrus CD player
MC-BUS out
MC-BUS out
MC-BUS out
MC-BUS out
MC-BUS in
MC-BUS in
MC-BUS in
-27
CD
Sample rate 44.1kHz
MUTE BAL SETUP
INPUT
DAC XP
CD
Sample rate 44.1kHz
SETUP
INPUT
DAC X
R
R R
USE PSX-R ONLY
BALANCED OUT
L
L L
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
R
R R
USE PSX-R ONLY
BALANCED OUT
L
L L
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
a b c d e f
1!1@
Fig 1
Fig 2
Fig 4
Fig 3
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1%
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DAC X+
DAC XP+
DAC X+
DAC XP+
Cyrus DAC X+, Cyrus DAC XP+ User Instructions
1
IMPORTANT! Read before operating this equip ment!
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 liq uids,
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 produc t
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, trip od,
bracket, or table. The product may f all, caus ing serious inju ry to a c hild or ad ult,
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 pr oduct
manufacturer as they may cause hazards
.
POWER SOURCES: This product should be operated only from the type of
power source indicated on the marking labe l. 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 ot her sourc es, refer t o
the operating instructions.
OVERLOADING: Never overload wall outlets, extension cords, or integral
convenience receptacles. This can res ult in an increased risk of fire or electric
shock.
POWER CORD PROTECTION: Power supply cords should be routed so that
they are not likely to be walked on or pinched by items pl aced upon or against
them, paying particular at te nti on t o cord s at plu g s, co n veni e nce re ce p ta cle s, and
the point where they exit from the product.
NAKED FLAMES: No naked flame sources, such as candl es, 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 pro duct during a lightning storm, or
when it is left unattended or unused for long periods of time, un plug 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 supplie d plugs into the power
inlet 1@ on the rear of the unit.
The mains supply requirement for yo ur Cyrus uni t is mark ed on a label o n
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, c ontact 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 y ourself as opening or removing covers
may expose you to dangerous voltage or other hazards. Refer all serv icing 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 oper ating
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 q ual ified 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 par t. 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 determin e 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.
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 ris k o
f
electrical shock presented by components inside this
p
roduct. Unauthorised personnel must not open this unit.
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+, Cyrus DAC XP+ User Instructions
2
Welcome to the world of Cyrus!
Congratulations on your choice of Cyrus Audio-Visual products. Our state-of-theart 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+ only)
• 2 AAA Batteries (DAC XP+ 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+ series –
• The DAC X+ upsampling audio D/A converter. The DAC X+ features dual
mono DACs and a balanced audio design throughout the analogue
domain. The DAC X+ 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+ shares digital technology with the DAC X+, adding a fully
balanced preamplifier stage with additional analogue audio inputs. The
DAC XP+ can drive a power amplifier directly and replaces a
conventional analogue pre-amplifier in a high-end audio s ystem.
This handbook includes instructions for the connection and operation of both
the DAC X+ and DAC XP+. 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+ to full DAC XP+ specification,
adding the balanced preamplifier stage.
Index
Important safety instructions ............ DAC X+ & D AC XP+ .............................. 1
Introduction ....................................... DAC X+ & DAC XP+ .............................. 2
Installation ........................................ DAC X+................................................... 3
Setting up ......................................... DAC X+................................................... 4
Operation .......................................... DAC X+................................................... 5
Installation ........................................ DAC XP+ ................................................ 6
Setting up ......................................... DAC XP+ ................................................ 8
Operation .......................................... DAC XP+ ................................................ 9
Remote control ................................. DAC XP+ .............................................. 10
Troubleshooting ................................ DAC X+ & DAC XP+ ............................ 12
Warranty ........................................... DAC X+ & DAC XP+ ............................ 12
Specifications ................................... DAC X+ & DAC XP+ ............................ 13
Cyrus DAC X+ User Instruction
3
INSTALLATION (DAC X+)
Key to the rear panel drawing (Fig.1)
1. Dual balanced outputs 9. Input 5 Digital
2. Fixed level DAC outputs 10. Input 6 Digital
3. MC-BUS connections 11. PSX-R connection
4. Optical digital output 12. AC mains inlet
5. Input 1 Optical
6. Input 2 Optical
7. Input 3 Digital
8. Input 4 Digital
NOTE: When connecting inputs to the DAC X+, ensure that only digital audio
sources are connected to ‘Digital’ inputs.
Connecting Digital Audio Sources
The digital audio inputs of the DAC X+ 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+ can be re-named at the setup stage.
Connecting the DAC X+ to an amplifier
The DAC X+ 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+ 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 b to
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+. 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+ may be used. With suitable balanced interconnects fitted with XLR
connectors, connect from the Balanced Output terminals a of the DAC X+ 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 d is provided for the connection of another digital
device to the DAC X+. 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+ and other Cyrus products. When a DAC X+ /
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+, plug the connector on the umbilical
cord of the PSX-R into the Multi-Pole socket on the rear of the DAC X+ 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 Connections
MC-BUS operation
Connecting the MC-BUS sockets c of the DAC X+ to those of other Cyrus
products is an option that provides unified system power control. With MCBUS 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 drawing in Fig 3 shows an example of MC-BUS wiring
for a Cyrus DAC X+ with a CD player, tuner and amplifier.
MC-BUS configuration
Within a Cyrus system, the DAC X+ 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+ will power on when the correct input
is selected, the MC-BUS response may be configured accordingly.
The factory response enables the DAC X+ to switch on when the CD input is
selected from the amplifier. To change the response, refer to the paragraph
‘DAC X+ Connected to’ in the section ‘Setting up the DAC X+’.
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