Cyrus Mono X 200 Signature User Instructions
CONTENTS
IMPORTANT! Read before operating this equipment! ....................... 1
Power supply: ................................................................................ 1
Servicing: .......................................................................................1
Product service centres: ............................................................... 1
FCC NOTICE ....................................................................................2
WELCOME TO THE WORLD OF CYRUS! ...............................................3
Preparations for Installation ......................................................... 3
INSTALLATION ..................................................................................... 3
Key to the rear panel drawing ..................................................... 3
Placement ...................................................................................... 4
Connecting to the AC Mains Supply .............................................4
Identifying System Channels ........................................................ 4
Connecting a Pre-Amplifier or Surround Decoder ....................... 4
Input Connection via phono (RCA) interconnects ........................ 4
Input Connection using Balanced XLR cables .............................4
Connecting Loudspeakers ............................................................4
CAUTION: Choice of speaker cables ............................................ 4
Fitting the loudspeaker plugs...................................................... 4
Connecting the cables ................................................................ 4
Chain Output .................................................................................. 5
Bi-Amplification ............................................................................5
Gain Matching ...............................................................................5
Remote Power Control (MC-BUS, RS232 or 12V Trigger) ............. 6
Connecting to an MC-BUS equipped Cyrus system ..................... 6
Connecting to a 12V trigger equipped system ............................. 6
Connecting to an RS232 equipped system .................................. 6
OPERATION .......................................................................................... 7
Power Control ................................................................................ 7
Power control from the front panel ............................................. 7
Music sensing automatic power control...................................... 7
Input Indicator ............................................................................... 7
Selecting an Input .........................................................................7
Cooling ........................................................................................... 8
Cooling in use ............................................................................8
Cooling in standby ...................................................................... 8
TROUBLESHOOTING GUIDE ..................................................................8
SPECIFICATIONS ..................................................................................9
Power Supply ............................................................................. 9
Power Consumption ................................................................... 9
Enclosure ................................................................................... 9
Audio Performance ........................................................................ 9
WARRANTY ........................................................................................10
WEEE .................................................................................................10
Cyrus Mono X 200 Signature User Instructions
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.
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 builtin 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:
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
or against them, paying particular attention to cords at plugs, convenience
receptacles, and the point where they exit from the product.
A product and cart combination
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.
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:
Connect the moulded IEC connector of the AC cord supplied plugs into the
power inlet h on the rear of the unit.
The mains supply requirement for your Cyrus Mono X 200 Signature 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.
1
Cyrus Mono X 200 Signature User Instructions
FCC NOTICE*
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try and correct
the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.•
Increase the separation between the equipment and receiver.•
Connect the equipment into an outlet on a circuit different from that to which the receiver is •
connected.
Consult the dealer or an experienced radio/TV technician for help.•
Any changes or modifications not expressly approved by the manufacturer could void the user’s authority
to operate the equipment.
*115V products
2
Cyrus Mono X 200 Signature User Instructions
CHAIN
RS232
SPEAKER
MADE IN ENGLAND
OUTPUT
INPUTINPUT
MC-BUS
INPUT
h
abcf
e
gc
d
i
WELCOME TO THE WORLD OF CYRUS!
Congratulations on your choice of Cyrus Hi-fi 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 amplifier safely and
correctly.
INSTALLATION
Preparations for Installation
Before installing the Mono X 200 Signature check that the following items
are included in the accessory box.
Power Cable•
4 Loudspeaker plugs•
2 MC-BUS cables•
After removing these items, please retain the packaging.
Install the Mono X 200 Signature in a well ventilated location away from
sources of high temperature, dust or humidity. Never stand the Mono X
200 Signature under another unit or on any surface likely to hamper its
cooling or ventilation.
Key to the rear panel drawing
+ Speaker Outputs1.
- Speaker Outputs 2.
Cooling Fans 3.
Balanced (BAL) Input 4.
Unbalanced RCA (phono) Input5.
Chain Output6.
MC-BUS connections7.
IEC Power Inlet8.
RS232/12V trigger D-type9.
3
Cyrus Mono X 200 Signature User Instructions
USE PSX-R ONLY
HEADPHONE
MADE IN ENGLAND
IN-11IN-10IN-9IN-8IN-7
IN-1IN-2IN-3IN-4IN-5IN-6ZONE 2
OUT
PRE OUT 1PRE OUT 2
MC-
BUS
IN
OUT
CHAIN
RS232
SPEAKER
MADE IN ENGLAND
OUTPUT
INPUTINPUT
MC-BUS
INPUT
CHAIN
RS232
SPEAKER
MADE IN ENGLAND
OUTPUT
INPUTINPUT
MC-BUS
INPUT
Right
bass
Right
treble
+
-
-
+
Left
bass
Left
treble
+
-
-
+
Placement
When installing Mono X 200 Signature amplifiers, choose a position where
there is at least 3cm clearance from the sides and top of the amplifier
to allow cooling air to circulate. Never stand the amplifier on a soft or
carpeted surface or install the amplifier in an enclosed space or cabinet
where cool air cannot enter.
Connecting to the AC Mains Supply
Connect the socket on the AC Power cable to the Power inlet h on the rear
panel of the Mono X 200 Signature. Now connect the cable to a suitable
AC power point.
The mains plug is the disconnect device for this product. Ensure that the
mains plug is always readily accessible.
Identifying System Channels
Each Mono X 200 Signature drives a single speaker. In a stereo system
two Mono X 200 Signatures are necessary, in an AV system, a Mono X 200
Signature amplifier will be necessary for each channel. Before proceeding
to connect your amplifiers, take some time to organise your system so
that you can easily identify which amplifier will be connected to each
speaker.
Connecting a Pre-Amplifier or Surround Decoder
Phono (RCA) e and Balanced input connectors d are available to link the
Mono X 200 Signature to a pre-amplifier or surround decoder.
If your amplifiers are a long distance from the pre-amplifier/decoder,
or beside a loudspeaker, then balanced XLR connections d may give
improved performance.
Input Connection via phono (RCA) interconnects
Connect a single phono interconnect from the phono input e of each
Mono X 200 Signature to the corresponding output of the pre-amplifier/
decoder.
In the system illustration on this page, a Cyrus preamplifier is connected
to two Mono X 200 Signature amplifiers, one for the left channel and
one for the right channel. Input connections are shown using phono
interconnects.
Connecting Loudspeakers
CAUTION: Choice of speaker cables
When choosing speaker cables, avoid litz-wound cables with a complex
‘plaited wire’ construction. These cables can be highly reactive and may
degrade the sound of your amplifier. Always choose a cable of simple
construction, manufactured from high quality materials and priced
sensibly within the cabling budget of your system.
If in doubt about the correct cable to choose, any Cyrus retailer will be
able to advise.
Fitting the loudspeaker plugs
Check for polarity indicators (+ and -) on the loudspeaker cable and fit
the plugs provided. Observe any signal directionality markings indicated
on the cable. If an arrow is printed on the cable it should point toward
the speaker.
If additional or replacement loudspeaker plugs are required for the Mono
X 200 Signature, ensure that the correct ‘BFA’ type are purchased.
Connecting the cables
After checking all the assembled cables for polarity they can be plugged
into the loudspeakers and amplifiers. The ‘+’ and ‘-’ terminals of each
loudspeaker must be connected to the matching ‘+’ and ‘-’ terminals of
each amplifier as follows-
Connect the left loudspeaker to the rear panel sockets a (red speaker
plug) and b (black speaker plug) of the left channel Mono X 200
Signature. Connect the right loudspeaker to the rear panel sockets a
(red speaker plug) and b (black speaker plug) of the right channel Mono
X 200 Signature.
Dual outputs are provided for the convenient connection of bi-wiring
speaker cables. The diagram below shows a wiring schematic for a biwired stereo system.
Input Connection using Balanced XLR cables
Connect a 3-pin XLR cable from the balanced input d of each Mono X 200
Signature to the corresponding XLR output of the pre-amplifier/decoder.
4
Cyrus Mono X 200 Signature User Instructions
CHAIN
RS232
SPEAKER
MADE IN ENGLAND
OUTPUT
INPUTINPUT
MC-BUS
INPUT
CHAIN
RS232
SPEAKER
MADE IN ENGLAND
OUTPUT
INPUTINPUT
MC-BUS
INPUT
CHAIN
RS232
SPEAKER
MADE IN ENGLAND
OUTPUT
INPUTINPUT
MC-BUS
INPUT
CHAIN
RS232
SPEAKER
MADE IN ENGLAND
OUTPUT
INPUTINPUT
MC-BUS
INPUT
USE PSX-R ONLY
HEADPHONE
MADE IN ENGLAND
IN-11IN-10IN-9IN-8IN-7
IN-1IN-2IN-3IN-4IN-5IN-6ZONE 2
OUT
PRE OUT 1PRE OUT 2
MC-
BUS
IN
OUT
Right
bass
Right
treble
+
-
-
+
Left
bass
Left
treble
+
-
-
+
Chain Output
The Chain output f allows more than one Mono X 200 Signature to be
connected to each channel of a pre-Amplifier or decoder.
Note: The Chain output is operational whether phono (RCA) or Balanced
XLR input connection is made to the Mono X 200 Signature.
Bi-Amplification
If your pre-amplifier only has a single set of pre outputs, the Chain facility
can be used to connect additional Mono X 200 Signature amplifiers to
each channel for Bi/Tri-amping. Such a bi-amplified system provides the
sonic benefits of totally separate power amplification for the bass and
treble units of the loudspeakers.
In the bi-amplified system illustration below, a preamplifier is connected
to four Mono X 200 Signature amplifiers - two for the left channel and two
for the right channel. Phono input connections are shown.
Gain Matching
All Cyrus power amplifiers, and all power amplifier stages in Cyrus
integrated amplifiers have the same voltage gain characteristics. This
means that you can use the Mono X 200 Signature in conjunction with
any Cyrus amplifier for bi-amping, etc. without any set-up adjustments
being required.
Note: The Chain output is operational whether phono (RCA) or Balanced
XLR input connection is made to the Mono X 200 Signature.
5
Cyrus Mono X 200 Signature User Instructions
1
9
+12V
0V
MC-BUS out
MC-BUS out
MC-BUS out
MC-BUS out
MC-BUS in
MC-BUS in
MC-BUS in
MC-BUS in
MC-BUS out
MC-BUS in
Cyrus CD Player
Cyrus Tuner
Cyrus Pre-amplifier
Cyrus Mono X
Signature
Cyrus Mono X
Signature
Remote Power Control (MC-BUS, RS232 or 12V Trigger)
The Mono X 200 Signature may be remotely switched to and from
Standby (low power standby) using the Cyrus MC-BUS system or one of
two industry standard connection systems – RS232 or 12V trigger.
The Cyrus MC-BUS system is recommended for use when amplifiers •
are installed in a system of Cyrus audio components.
A 12V trigger feed is often used by AV receivers for standby control of •
power amplifiers, projectors etc in an AV system.
The RS232 interface is found in some CI (custom install) multi-room •
installations where the system control unit can remotely control the
system components including power amplifiers.
Connecting to an MC-BUS equipped Cyrus system
An MC-BUS (Master Control) 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 MCBUS output of the final component to the MC-BUS input of the first (see
example system connections below).
Connecting to a 12V trigger equipped system
A custom connection cable will be required to set up 12V trigger operation.
A retailer should be able to make up a cable of the correct length and with
the correct terminations to match the amplifier (9-pin D-type) and the
control unit.
The connections required are –
Once the cable is available, connect the 9-pin D to the RS232/12V
connector i on the back of the Mono X 200 Signature. Connect the other
end of the cable to the AV receiver or other component that is controlling
system power.
Connecting to an RS232 equipped system
Your CI installer can obtain full installation and programming instructions
for the RS232 interface from Cyrus technical support or from your local
Cyrus distributor.
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.
6
Cyrus Mono X 200 Signature User Instructions
Mono X
Zero Feedback
200
INPUT
c
ab
OPERATION
Key to the front panel drawing
Standby key1.
Standby indicator2.
Input indicator3.
Input selector key 4.
Power Control
When power is first applied, the amplifier will initialise, then set to
Standby.
Power control from the front panel
Press the STANDBY key a briefly to switch the amplifier between
operational and standby modes. The Standby Indicator b will glow green
when operational or red when set to Standby.
Music sensing automatic power control
Music sense power control can be enabled if required.
To enable or disable Music sense, first set the amplifier to Standby, then
press and hold the STANDBY key for two seconds. The Standby Indicator
will flash red three times, then change colour to show the status of Music
sense – orange when enabled or red when disabled.
When Music sense is enabled, the amplifier will switch on automatically if
a music signal is detected from the pre-amplifier, and set to Standby after
10 minutes of silence. The STANDBY key may also be used to switch the
amplifier on if required, or to switch the amplifier back to Standby with
Music sense enabled (Standby indicator will glow orange).
NOTE: Standby power consumption will be significantly higher when
Music sense is enabled.
A 12V trigger, MC-BUS or RS232 ‘OFF’ command cancels the Music
sense function.
Input Indicator
The INPUT Indicator c will glow red when the output of the Mono X 200
Signature is muted. This occurs for a few seconds following Standby
operation or if a temporary overload condition arises. If the INPUT Indicator
flashes at any time, refer to the Troubleshooting Guide.
Selecting an Input
The front panel INPUT key d selects RCA Phono or Balanced input
connection. To change inputs, the amplifier must be switched on.
Press and hold the INPUT key d until the INPUT indicator c changes
colour as shown.
INPUT Indicator colour Input selected
Green Balanced
Orange RCA Phono
NOTE: The input setting will be retained when mains power is
disconnected.
7
Cyrus Mono X 200 Signature User Instructions
Cooling
Cooling in use
Due to the substantial power of the Mono X 200 Signature, forced aircooling is provided via two fans. The fans in the Mono X 200 Signature
feature an Intelligent speed controller. When the unit is idling the fans turn
off. As the amplifier warms up the fans progressively speed up, reaching
maximum speed at maximum temperature. In this way the fan speed is
always related to the power output of the unit and fan noise is barely
discernible even at low volume levels. Whilst listening to music during
quiet passages, the fans may slow down or in some cases stop altogether
to avoid encroaching on the listening experience.
Cooling in standby
If the amplifier is set to Standby whilst the case is still hot, the fans will
switch in at full speed, cooling the case before setting to Standby. During
this period the INPUT indicator will glow red, extinguishing when the
cooling cycle is complete.
TROUBLESHOOTING GUIDE
If your Mono X 200 Signature is not operating properly, disconnect the
power and check all connections using the notes in this handbook. If
problems persist, the checklist below may be helpful.
If you are in doubt, consult your dealer.
No sound from one or all speakers
Check that the pre-amplifier and
the power amplifiers are on.
Check that the correct amplifier
input is selected.
Check that the loudspeakers are
connected.
Your amplifier has a unique fault indication system to help you to diagnose
problems. Fault condition messages will be displayed via the Standby and
Input/Mute indicators in the event of a system fault.
INPUT indicator flashing between red and the normal input colour
The amplifier has overheated. The amplifier will automatically
STANDBY indicator flashing orange/green
The amplifier has been
overloaded.
STANDBY indicator flashing red or red/orange
The amplifier has an internal
fault.
The standby lights should be
green.
The INPUT indicator will glow
green for balanced input, orange
for RCA/phono.
The connection at the terminals
of the loudspeakers and the
Mono X 200 Signature should be
checked.
run the fans at full speed until it
has cooled to a safe temperature,
it will then return to Standby,
ready for normal operation. Check
to ensure there is adequate
ventilation for the amplifier.
Check that the speaker
connections are correctly made
with no possibility of a shortcircuit. If the problem persists,
the speaker impedance may be
too low.
Switch off the amplifier, disconnect
it from the system and return it for
service.
8
Cyrus Mono X 200 Signature User Instructions
SPECIFICATIONS
Power Supply
Voltage: ..............................................................As plate on rear of unit
Power Consumption
Standby ......................................................................................... <1W
ON (No Signal) ................................................................................23W
Maximum .....................................................................................525W
Safety Compliance .............................................................................CE
EMC (230V) ........................................................................................CE
EMC (115V) ......................................................................................FCC
Enclosure
Dimensions (WxHxD) ................................................ 215 x 75 x 365mm
Weight (Mono X 200 Signature) ..................................................... 5.5kg
Material ........................................................................Die cast chassis
Audio Performance
Input Sensitivity (50W 8Ω) RCA ................................................... 381mV
Input Sensitivity (50W 8Ω) BAL ................................................... 775mV
Input Sensitivity (150W 8Ω) RCA ................................................ 660mV
Input Sensitivity (150W 8Ω) BAL .................................................... 1.3V
Input Impedance (RCA) .................................................................19kΩ
Input Impedance (BAL) ..................................................................20kΩ
Output Power (Continuous) 8Ω ............................................. 150Wrms
THD+N @2/3 full power ........................... (20Hz - 20kHz 8Ω) .. <0.05%
(1kHz 8Ω) ............. <0.004%
Slew Rate (input filter bypassed) ............................................... 700v/µS
Frequency Response (-3dB) .............................................0.1Hz-300kHz
S/N Ratio (Ref. 150W / 8Ω) ........................................................114dBA
Chain Output (buffered) .............................................(unity gain) 660mV
(ref. 660mV RCA input, 1.3V Balanced input.)
Cyrus reserves the right to change all specifications without notice. E & OE
9
Cyrus Mono X 200 Signature User Instructions
WARRANTY
The warranty should be registered on-line 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 warranty.
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.
WEEE
This logo means that this product is not to be disposed
of with your household waste. This product should
be handed over to a designated collection point to be
recycled. Your cooperation in the correct disposal of this
product will contribute to the effective usage of natural
resources. For more information on collection points,
contact your disposal service or local government
administration.
10
Cyrus Audio Ltd., Ermine Business Park, Huntingdon, PE29 6XY, U.K.
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