Cyrus X Power
User Instructions
IN
C-BUS
R
INPUT
L
CHAIN
M
Cyrus X Power & SmartPower plus
IN
C-BUS
R
INPUT
L
CHAIN
M
ab cdefghi1)
CHAIN INPUT
CHAIN
M
L
R
MONO OPERATION:
Set ‘mono/stereo’
•
switch to mono.
Connect input to ‘M’.
•
Connect speaker
•
+ve to ‘M+’ and
speaker -ve to ‘M-’.
Refer to manual for details
R
R
+ SPEAKER -
M-
R
R
OUT
MC-BUS
IN
STEREO
MONO
INPUT
PRECISION
ELECTRONIC
INSTRUMENT
MADE IN ENGLAND
L
- SPEAKER +
L
USE
PSX-R
ONLY
STEREO OPERATION:
Set ‘mono/stereo’
•
switch to stereo.
M+
Connect inputs to ‘L & ’.
•
Connect speakers
•
to ‘-speaker+’ for left &
+speaker-
to ‘ ’ for right.
Refer to manual for details
R
Cyrus CD Player
Fig 1
1% 1^
MONO
1% 1^
MONO
1&
1$
1#
X Power
SmartPower plus
Switchable PowerAmplifier
Switchable PowerAmplifier
SmartPower plus
X Power
Plus
1!1@
User instructions
Cyrus FM tuner
X
Cyrus Preamplifier
CHAIN INPUT
M
OUT
L
R
R
MONOOPERATION:
Set‘mono/stereo’
•
switchtomono.
Connectinputto ‘M’.
•
+SPEAKER-
M-
Connectspeaker
•
+veto‘M+’ and
speaker-veto ‘M-’.
Refertomanual for details
R
R
Cyrus X Power
MC-BUS
IN
L
STEREOOPERATION:
Set‘mono/stereo’
•
STEREO
MONO
INPUT
PRECISION
ELECTRONIC
INSTRUMENT
MADEIN ENGLAND
switchtostereo.
M+
Connectinputsto ‘L & ’.
•
R
-SPEAKER+
Connectspeakers
•
to‘-speaker+’for left &
+speaker-
to‘ ’forright.
Refertomanual for details
L
USE
PSX-R
ONLY
CHAIN
R
Fig 2
Right
treble
Right
bass
Right
treble
Right
bass
+
+
-
+
+
-
-
-
Fig 4a
Fig 4b
1&
BI-WIRE
BI-WIRE MONO
Left
Input
Left
Input
Right
Input
Right
Input
Left
treble
-
+
+
-
Left
bass
treble
-
+
+
-
bass
Left
Left
Right
treble
Right
bass
Fig 4c
-
+
-
+
Fig 3
BI-AMP
Left
Input
Right
Input
treble
-
+
-
+
Left
Left
bass
X Power & SmartPower plus
User Instructions Cyrus X Power & SmartPower plus
p
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
roduct. Unauthorised personnel must not open this unit.
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.
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.
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.
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
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.
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.
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.
or against
POWER SUPPLY:
Connect the moulded IEC connector of the AC cord supplied plugs into the
power inlet 1@ on the rear of the unit. The mains fuse 1# is on the rear panel
next to the power switch. It must only be replaced as follows:
X Power U.K. / Europe 230V T2AL/250V 20mm
X Power N. America 115V T3.15AL/250V 20mm
SmartPower plus U.K. / Europe 230V T1AL/250V 20mm
SmartPower plus N. America 115V T1.6AL/250V 20mm
The mains supply requirement for your Cyrus X Power 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.
NOTE FOR UK CUSTOMERS:
The X Power is supplied with a power cable terminated by a fused 13A mains
plug. This plug should not be removed but if it is removed, dispose of it safely
and do not re-use it. To connect a new 13A plug, proceed as follows: Connect
the brown wire to the terminal marked L or coloured red. Connect the blue wire
to the terminal marked N or coloured black. The internal plug fuse should be
5A.
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. The Cyrus distributors are listed at the end of this instruction manual
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Cyrus X Power & SmartPower plus User Instructions
Welcome to the world of Cyrus!
Congratulations on your choice of Cyrus Hi-fi 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.
Please read these instructions carefully before commencing installation. They
provide full guidance to help you install your Cyrus X Power safely and
correctly.
Cyrus X Power and SmartPower plus model differences
These user instructions refer to both the Cyrus X Power and Cyrus
SmartPower plus amplifiers. Model differences are indicated in the text where
they occur.
Preparations for Installation
Before installing the X Power check that the following items are included in the
accessory box.
• Guarantee Card (back page of instruction manual)
• Power Cable
• 2 MC-Bus phono cables
• 4 speaker plugs (certain markets only)
After removing these items, please retain the packing.
Install the X Power in a well ventilated location away from sources of high
temperature, dust or humidity. Never stand the X Power under another unit or
on any surface likely to hamper its cooling or ventilation.
INSTALLATION
Key to the rear panel drawing (Fig.1)
1. Right speaker output + 8. Stereo/Mono selector switch
(- Speaker output mono) 9. Left speaker output -
2. Right speaker output - 10. Left speaker output +
3 MC-Bus Connection (+ Speaker Output mono)
4. Right Chain Output 11. PSX-R Connection
5. Left/Mono Chain Output 12. Power Inlet
6. Left/Mono Input 13. Mains Fuse
7. Right Input 14. Power Switch
Connecting to the AC Mains Supply
Connect the socket on the AC Power cable to the Power inlet 1@ on the rear panel of
the X Power. Now connect the cable to a suitable AC power point.
The mains power switch 1$ on the rear panel of the X Power should be left on
for normal operation, except when left unattended for a long period when it
should be switched off or disconnected from the AC supply.
External Regulated Power Supply - PSX-R
The PSX-R is a unique DC power supply which will upgrade the sonic
performance of your X Power and enhance its current drive. When a X
Power/PSX-R combination is installed, analogue and signal related sections
are powered from this clean, stable power source while other requirements are
supplied internally. This ensures complete isolation of control circuits and
sensitive analogue sections reducing AC mains-borne noise and power supply
ripple.
To connect the PSX-R to the X Power plug the connector on the umbilical cord
of the PSX-R into the Multi-Pole socket on the rear of the X Power (
You will need a mains supply for both units.
1! Fig.1)
Two channel or Single channel high power operation
The X Power may be configured as either a two channel (stereo) amplifier or
as a single channel (mono) amplifier for higher power applications. The X
Power is factory set for stereo operation.
Stereo systems
Stereo systems may be set up with either a single X Power set for two channel
(stereo) operation or twin X Powers set for single channel (mono) operation.
Audio-Visual multi-channel systems
Both two channel and single channel high power modes may be employed for
the multiple channel requirements of audio-visual systems. Two channel and
single channel amplifiers may also be mixed in these systems if preferred, for
example- three X Power amplifiers set for single channel (mono) operation to
drive the Front Left, Right and Centre channels and a single Two channel
(stereo) amplifier to drive both the left and right surround channels.
Note: Ensure all equipment is disconnected from the power before any
connections or disconnections are made.
Input Connection
Two channel (stereo) operation
Set the STEREO/MONO switch h to Stereo. Connect a stereo phono
interconnect from the output of the preamplifier to the X Power's left and right
inputs f and g. Be sure to observe colour coding of the plugs to keep left
and right channels correctly ordered.
Single channel (mono) operation
When switched for single channel mono operation, twin X Power amplifiers
are necessary in a stereo system – one for the left and one for the right
channel.
Set the STEREO/MONO switch h on both amplifiers to Mono. Connect a
single phono interconnect from the left output of the preamplifier to the ‘M’
Mono input f of the left channel X Power. Connect the right output of the
preamplifier to the ‘M’ Mono input f of the right channel X Power.
Loudspeaker Connection
Fitting the speaker plugs
Check for polarity indicators (+ and -) on the loudspeaker cable and fit the
plugs. Observe any signal directionality markings indicated on the cable. If an
arrow is printed on the cable it should point toward the loudspeaker.
Two channel stereo speaker connections
Connect the left loudspeaker to the rear panel sockets
and i (black speaker plug) of the X Power. Connect the right loudspeaker to
the rear panel sockets
X Power.
Dual outputs are provided for the convenient connection of bi-wiring speaker
cables. Figure 4a shows a wiring schematic for a bi-wired stereo system.
Single channel mono speaker connections
Connect the left loudspeaker to the left X Power using the panel sockets
marked M+ 1) (red speaker plug) and M- a (black speaker plug).
Repeat this procedure to connect the right channel speaker to the right
channel X Power. Fig 4b shows a wiring schematic for a bi-wired system using
mono amplifiers.
Audio-Visual multi-channel systems
Connect each X Power in turn to the system speakers, following the two
channel or single channel instructions above, as appropriate.
a red speaker plug) and b
1) (red speaker plug)
(black speaker plug) of the
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User Instructions Cyrus X Power & SmartPower plus
Bi-amplification
For convenience of connection in applications such as Bi-Amplification the
Chain outputs e and d allow more than one X Power to be connected to a
Pre-Amplifier.
The Chain facility can be used with two or more X Powers for Bi/Tri-amping by
connecting the Chain output of the first X Power to the inputs of the next X
Power. Such a system provides the sonic benefits of totally separate power
amplification for the bass and treble units of the loudspeakers.
When adding additional X Powers to a system, connect a quality RCA phono
interconnect from the Chain output RCA jacks
e and d to the inputs f and
g of the new X Power. For single channel (mono) chain installations, connect
the ‘M’ chain output e of each Mono amplifier to the ‘M’ Mono inputs f of the
new amplifiers.
When the input connections to the new amplifier are complete, separate
connections may be made to the bass and treble units of the system
speakers. Fig 4c shows a wiring schematic for a bi-amped system using
stereo amplifiers.
MC-Bus connection
Connecting the MC-BUS sockets c of the X Power in an MC-BUS system
provides unified system power control. 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 in a daisy-chain. Complete the loop by returning the
MC-BUS output of the final component to the MC-BUS input of the first (see
example system connections in Fig.3).
With MC-BUS established you can control the power function of the system
from the front panel or remote control of the main Cyrus amplifier or Surround
Processor.
OPERATION
Key to the front panel drawing (Fig.2)
15. Standby Switch
16. Standby Light
17. Mono Light
Switching On
The mains power switch 1$ on the rear panel of the X Power should be left on
for normal operation, except when left unattended for a long period when it
should be switched off or disconnected from the AC supply.
When power is applied, the STANDBY key 1% may be used for power control.
The Standby light 1^ shows red when the X Power is in Standby and green
when operational.
In addition to manual power control from the STANDBY key, the X Power also
features a music sensing automatic power control which listens for the
presence of an input signal and will switch on if music begins to play. If the X
Power has been activated in this way it will reset to Standby five minutes after
the music has stopped.
Remote power control can also be enabled by connecting the MC-Bus sockets
c of the X Power to a Cyrus system which includes a Preamplifier, Integrated
amplifier or Surround decoder. A number of X Powers may be connected in
this way to provide remote standby control of all the system power amplifiers.
Disabling the Music Sensor
In some installations a number of X Power amplifiers may be driven from a
single preamplifier source to feed loudspeakers in several extension rooms. In
systems such as these it may be preferable to disable the Music Sensor to
prevent all amplifiers switching on when music commences.
The user can disable the Music Sensor by holding the front panel Standby key
whilst switching on the unit at the rear. The amplifier will now respond only to
the front panel standby button and MC-Bus commands. The Music Sensor will
remain disabled until power is next disconnected from the unit.
The Music Sensor may also be permanently disabled by returning the X
Power to your retailer or the Cyrus factory for an internal adjustment.
NOTE:- If MC-Bus connections are made to the X Power the music sensor is
disabled automatically.
FRONT PANEL INDICATORS
MONO Indicator
The MONO Indicator 1& will glow red if the rear panel STEREO/MONO switch
h is set for MONO Operation. This switch can be operated only when the X
Power is in Standby. Operating it at any other time activates the fault
indication system
.
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Cyrus X Power & SmartPower plus User Instructions
TROUBLESHOOTING GUIDE
If your X Power is not operating properly, disconnect the power and check all
connections using the notes in this manual. If problems persist, the checklists
below may help.
If you are in any doubt, consult your dealer.
No sound from either speaker
Preamplifier mute switch is on Deselect Mute
Loudspeakers are disconnected Check speaker connections
Fault indication on the front panel of
your X Power
No sound from one loudspeaker
Does your speaker have fuses? Check speaker, replace fuses
Speaker cables or interconnects
faulty
Mono installations: Check connections are correct to
Poor quality sound in two channel stereo mode
Selector switch incorrectly set to
mono
Poor quality sound in single channel mono mode
Selector switch incorrectly set to
stereo
Speakers plugs not connected to the
correct terminals
See ‘Fault Indication System’
Check connections, cables - replace
if needed
input and output of both amplifiers.
Set the switch to stereo
Set the switch to mono
Check all speaker connections
carefully
FAULT INDICATION SYSTEM
The X Power has a powerful protection system and fault indication system
designed to prevent damage to your hi-fi system and help you diagnose a
possible problem. If a fault persists, reset the amplifier via the rear panel
mains switch.
FAULT INDICATIONS
Standby light flashing Green / Yellow
This indicates overload in at least
one channel. If the problem is
temporary (e.g. excessive volume),
normal operation will resume after
ten seconds. If the fault indication
persists, there may be a problem
with the speakers or connections.
Standby light flashing Green
A fault has been reported from the
PSX-R
The PSX-R is disconnected or
switched off.
Standby light flashing Yellow / Red
The X Power has over heated. Check the ventilation around the X
MONO light flashing
The STEREO/MONO switch has
been changed whilst the amplifier is
operating.
If after taking remedial measures a fault condition remains, you should return
the X Power to your Cyrus appointed dealer or an authorised Service Centre.
Switch off the power at the rear panel
and unplug the speaker cables. If the
fault indication clears when power is
re-applied, check the loudspeakers,
cables and plugs for loose strands of
wire causing a possible short circuit.
Switch off the power to the X Power
and the PSX-R Switch on again. If
the problem does not clear, return
both units to your Cyrus distributor
for checking.
Check there is power to the PSX-R
and check the PSX-R connection to
the X Power.
Power. Allow the unit to cool down
before re-applying power.
Return the switch to its original
position.
WARRANTY
The warranty card enclosed should be completed by the Dealer and the
purchaser and returned to CYRUS or its Distributor within 8 days of purchase.
No Dealer or Distributor may vary the terms of this warranty which is personal
to the original Purchaser and is not transferable.
Please retain the sales receipt as proof of purchase.
Warranty claims must wherever possible be made through the Dealer from
whom the equipment was purchased.
This warranty excludes:
• Damage caused through neglect, accident, misuse, wear and tear, or
through incorrect installation, adjustment or repair by unauthorised
personnel. Any unauthorised servicing will result in loss of guarantee.
• Liability for damage or loss occurring in transit to or from the purchaser.
• Consequential damage, loss or injury, arising from or in conjunction with
this equipment.
Equipment for attention under warranty should be consigned return carriage
paid. If returned equipment is found to comply with the published specification,
CYRUS reserves the right to raise a charge.
The above conditions do not affect your statutory rights as a consumer.
SPECIFICATIONS
Power Supply
Voltage: .................................................................................. As plate on rear of unit
Power Consumption
Standby ..................................................................................................................6W
ON (No Load) .......................................................................................................16W
Max.......................................................................X Power .............................. 360W
SmartPower plus ................ 300W
EMC & Safety Compliance (230V) ........................................................................ CE
EMC & Safety Compliance (115V)...................................................... FCC, cCSAus
Enclosure
Dimensions (WxHxD) ....................................................................215 x 75 x 365mm
Weight ..................................................................X Power .............................. 5.6Kg
SmartPower plus ................ 4.3Kg
Material..............................................................................................Die cast chassis
Audio Performance X Power
Input Sensitivity (60W/8Ω).............................................................................. 413mV
Input Impedance ...............................................................................................20kΩ
Channel Balance............................................................................................... 0.1dB
Frequency Response ..........................................-3dB .......................0.1Hz-100kHz
Signal to Noise Ratio (A-WTD) ............................ Unwtd................................. 108dB
(Ref 60W) A-wtd.................................. 115dB
Signal to Noise Ratio (A-WTD) ............................ Unwtd................................... 90dB
(Ref 1W) A-wtd.................................... 97dB
Output Power Stereo (Internal PSU) ...................8 Ohms ..................................70W
Output Power Mono (Internal PSU).....................8 Ohms ............................... 120W
Output Power Mono (with PSX-R).......................8 Ohms ............................... 130W
THD+N (@ 2/3 full power) ...................................20Hz-20kHz ........................0.01%
1kHz............................... 0.0015%
Audio Performance SmartPower plus
Input Sensitivity (60W/8Ω).............................................................................. 413mV
Input Impedance ...............................................................................................20kΩ
Channel Balance............................................................................................... 0.1dB
Frequency Response ..........................................-3dB .......................0.1Hz-100kHz
Signal to Noise Ratio (A-WTD) ............................ Unwtd................................. 108dB
(Ref 60W) A-wtd.................................. 115dB
Signal to Noise Ratio (A-WTD) ............................ Unwtd................................... 90dB
(Ref 1W) ...............................................................A-wtd.................................... 97dB
Output Power Stereo (Internal PSU) ...................8 Ohms ..................................60W
Output Power Mono (Internal PSU).....................8 Ohms ............................... 110W
Output Power Mono (with PSX-R).......................8 Ohms ............................... 125W
THD+N (@ 2/3 full power) ...................................20Hz-20kHz ........................0.01%
1kHz............................... 0.0015%
Cyrus reserves the right to change specifications without notice. E&OE.
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