NuForce MCP-18 User manual

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382 South Abbott Avenue, Milpitas, CA 95035, USA • PHONE: +1-408-890-6840 •FAX: +1-408-262-6877
MCP-18
Preamplifier

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382 South Abbott Avenue, Milpitas, CA 95035, USA • PHONE: +1-408-890-6840 •FAX: +1-408-262-6877
FCC Notice - Declaration of Conformity Information
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 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 to correct the interference by one or
more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and 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.
WARNING: Only peripherals complying with the FCC class B limits may be attached to this
equipment.
Changes or modifications made to this equipment, not expressly approved by us or parties authorized
by us could void the user’s authority to operate the equipment. This device complies with part 15 of the
FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.
Notice for customers: The following information is only applicable to equipment sold in countries applying EU
Directives.
EU Declaration of Conformity
Hereby, NuForce Inc. declares that this device is in compliance with the essential requirements
and other relevant provisions of Directive 2004/108/EC.
The manufacturer of this product is NuForce, 382 South Abbott Ave, Milpitas, CA 95035, USA.
The Authorized Representative for EMC and product safety is NuForce, 382 South Abbott Ave, Milpitas, CA 95035,
USA.
For any service or guarantee matters please refer to the addresses given in separate service or guarantee documents.
For$customers$in$Europe$
Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other
European countries with separate collection systems)
This symbol on the product or on its packaging indicates that this product shall not be treated as
household waste. Instead it shall be handed over to the applicable collection point for the recycling of
electrical and electronic equipment. By ensuring this product is disposed of correctly, you will help
prevent potential negative consequences for the environment and human health, which could
otherwise be caused by inappropriate waste handling of this product. The recycling of materials will
help to conserve natural resources. For more detailed information about recycling of this product,
please contact your local Civic Office, your household waste disposal service or the shop where you
purchased the product.

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382 South Abbott Avenue, Milpitas, CA 95035, USA • PHONE: +1-408-890-6840 •FAX: +1-408-262-6877
SAFETY INSTRUCTIONS
There are two categories of Safety Instructions included in this manual:
•Product Warnings, (i.e., what must never be done to assure avoiding those hazards that could
cause bodily injury or property damage); and
•User Directions (i.e., what must always be done to assure the safe use of your device).
The Safety Instructions contained in this manual have been categorized in accordance with the
seriousness of the potential hazards through the use of Signal Words. Those Signal Words, and their
intended meanings, are as follows:
DANGER: Indicates that a failure to observe the Safety Instructions could result in death or
catastrophic bodily injury.
WARNING: Indicates that a failure to observe the Safety Instructions could result in serious bodily
injury.
CAUTION: Indicates that a failure to observe the Safety Instructions could result in minor bodily
injury or property damage.
NOTE: Designates important information that relates to activities and/or conditions that might result in
loss of data and/or damage to your device.
Safe Use and Operation of Your Device
This equipment emits stray RF energy and will interfere with the reception of signals by airborne
electronic navigational devices or medical devices. Do not operate this equipment near any sensitive
medical devices.
WARNING: Use only grounded AC power cords.
Always immediately disconnect the power to the equipment in the event the device emits an unusual
odor or sound or generates smoke.
WARNING: Never attempt to disassemble, repair or make any modification to your device.
Disassembly, modification or any attempt at repair could cause bodily injury or property damage, as
well as damage to the device itself.
WARNING: Your device is not a toy. Never allow children to play with your device. Misuse, rough or
improper handling of your device by children could result in serious bodily injury for any of the
enumerated safety warnings in this manual. In addition, always keep all accessories and components
out of the reach of small children as small parts might present a choking hazard. Seek immediate
medical attention if choking occurs or if any small part has been swallowed.
CAUTION: Never raise the sound volume level too high when using your device with earphones. An
excessive sound volume level could cause damage to your hearing.
WARNING: To reduce the risk of fire or electric shock, do not expose the unit to moisture or water.
Do not allow foreign objects to get into the enclosure. If the unit is exposed to moisture, or a foreign
object gets into the enclosure, immediately disconnect the power cord from the wall. Take the unit to a
qualified service person for inspection and necessary repairs.
Read all the instructions before connecting or operating the component.
Keep this manual so you can refer to these safety instructions.
Heed all warnings and safety information in these instructions and on the product itself. Follow all
operating instructions.
Do not use this unit near water.
You must allow a minimum 10 cm or 4 inches of unobstructed clearance around the unit. Do not place
the unit on a bed, sofa, rug, or similar surface that could block the ventilation openings. If the unit is
placed in a bookcase or cabinet, there must be ventilation of the cabinet to allow proper cooling. Keep
the component away from radiators, heat registers, stoves, or any other appliance that produces heat.

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382 South Abbott Avenue, Milpitas, CA 95035, USA • PHONE: +1-408-890-6840 •FAX: +1-408-262-6877
The unit must be connected to a power supply only of the type and voltage specified on the rear panel.
Connect the component to the power outlet only with the supplied power supply cable or an exact
equivalent. Do not modify the supplied cable.
Do not route the power cord where it will be crushed, pinched, bent, exposed to heat, or damaged in
any way. Pay particular attention to the power cord at the plug and where the cord exits the back of the
unit.
The power cord should be unplugged from the wall outlet during a lightning storm or if the unit is to be
left unused for a long period of time.
Immediately stop using the component and have it inspected and/or serviced by a qualified service
agency if:
•The power supply cord or plug has been damaged.
•Objects have fallen or liquid has been spilled into the unit.
•The unit has been exposed to rain.
•The unit shows signs of improper operation.
•The unit has been dropped or damaged in any way.

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_______________________________________________________________________________________________
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382 South Abbott Avenue, Milpitas, CA 95035, USA • PHONE: +1-408-890-6840 •FAX: +1-408-262-6877
MCP-18
The NuForce MCP-18 is a perfect audiophile preamp for use in either a 2-channel traditional
setup, or as the heart of a 7.1 channel home-theater system. Employing a very high
performance, numerically-controlled analog volume control to provide channel calibration
without losing audio fidelity, it is the ideal companion for mating with an audiophile Blu-ray
player in a system that may also include other analog output sources and/or DAC outputs.
Features
!High quality MUSE72320 volume with no capacitor in Front L and R channels, relay-
based muting on L/R/C.
!Non-Inverting Op-Amp output circuit
!Balanced circuit is created with Op-Amps to have no phase-delay.
!Balanced output muting with transistors circuit.
!Each channel can be individually attenuated to match speaker sensitivity.
!Low noise linear power supply with toroidal transformer
!Trigger output with delay 10 sec.
!RS-232 control
!Worldwide power supply 90-245VAC

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382 South Abbott Avenue, Milpitas, CA 95035, USA • PHONE: +1-408-890-6840 •FAX: +1-408-262-6877
User Guide
Left knob – Function knob for source selection
Right knob – Volume adjustment, press and hold the volume knob for On/Off function
#1. 2 Channel RCA input x 2
#2. 2 Channel XLR input x 1
#3. 7.1 Channel RCA input x 2
#4. 7.1 Channel XLR output x 1
#5. Trigger port
#6. 7.1 Channel RCA output x 1
#7. RS 232 command port

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382 South Abbott Avenue, Milpitas, CA 95035, USA • PHONE: +1-408-890-6840 •FAX: +1-408-262-6877
Specification
Input:
2 Channel RCA Input x 2
2 Channel XLR Input x 1
8 Channel RCA Input x 2
Output:
8 Channel XLR Output x 1
8 Channel RCA Output x 1
RS232 Com Port x 1
Trigger out x 1
THD+N:
0.0005%
Frequency Response:
20 – 20 kHz
Output Impedance:
620 ohm
Input Impedance:
14k ohm

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_______________________________________________________________________________________________
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382 South Abbott Avenue, Milpitas, CA 95035, USA • PHONE: +1-408-890-6840 •FAX: +1-408-262-6877
NuForce’s Limited Warranty and Limitation of Liabilities
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9
_______________________________________________________________________________________________
_
382 South Abbott Avenue, Milpitas, CA 95035, USA • PHONE: +1-408-890-6840 •FAX: +1-408-262-6877
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