NXS NX200.2 Service manual

POWER AMPLIFIERS
w/ DIGITAL SIGNAL PROCESSORS
Installation Instructions / Owner's Manual
NX200.2 NX400.2 NX400.4 NX900.5
NX500.1 NX1000.1 NX2000.1

INTRODUCTION
Congratulations on your purchase of a NXS state-of-the-art power amplifier with digital
signal processing. At NXS Mobile Audio we strive to provide some of the latest
technologytoolsthatmakethequestfor“theperfecttune”somucheasier.Ourgoalwas
to develop technologically advanced amplifiers completely adjustable to the acoustics
ofeachvehicle.
RECOMMENDATION
Apower amplifier’s performance is only as good as its installation. Proper installation
will maximize the system’s overall performance. It is recommended that you have our
product installed by an authorized NXS retailer. However, if you decide to install it
yourself, please carefully read through this manual and take your time to do a quality
installation.
Due to continuing product improvements and possible manual revisions, we
recommend checking our website for latest product information at
www.nxsmobileaudio.com.
WARNING!
Exposure to high power sound system can cause hearing loss or damage. Listening to
yoursystematloudlevelswhile driving,willimpairyourabilitytohear trafficsoundsand
emergencyvehicles.Usecommonsensewhenlisteningtoyoursystem.
WARNING!
Exposure to high power sound system can cause hearing loss or damage. Listening to
yoursystematloudlevelswhile driving,willimpairyourabilitytohear trafficsoundsand
emergencyvehicles.Usecommonsensewhenlisteningtoyoursystem.
IMPORTANT! Before making any connections, disconnect the car’s batteryuntil the installation
iscompletedtoavoidpossibledamagetotheelectricalsystem.
Serial # Model #
1
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TAKE CONTROL
The NXS amplifiers feature built-in digital signal processors (DSP). The DSPallows for
control and adjustment of sophisticated features previously found only in mid-to high
end dedicated pre-amplifier equipment. The DSP features are controlled and adjusted
withoneofthetwofollowingcomponents(soldseparately).
NXLIcomputerinterfaceandNXCSsoftware:
The NXLI is an control interface which allows
the amplifier's DSP to be controlled by a PC.
The NXLI provides a standard USB plug to
connecttoaPCandaRJ11socketforacable
connection to the Amplifier's DSP Netlink.
The NXLI is powered by the USB connection
eliminating the need for additional power
connections. This makes the NXLI portable
andsimpletoconnect.
Unliketraditionalamplifierinstallationswiththeadjustmentsmadeontheamplifierinthe
back of the car, the NXLI gives the flexibility to position a Laptop PC within the vehicle
while sitting in the listening position making the adjustments real-time. This allows for
idealcalibrationofthesystemincludingequalizationandtimedelay.
NXLCDCIn-DashController: TheNXLCDCisanoptionalin-dashcontroller
foruserswhodonotwanttouseaPCtosetup
and control their NXSAmplifiers. Shaped in a
convenient DIN size, the NXLCDC features a
4 line LCD Display, a function selecting scroll
wheel,4presetbuttonsanda'back'button.
ThisenablestheusertoselectandadjustdifferentamplifiersconnectedviaDSPNetlink
in the same car. Basic settings like EQ, Gain, Sub-woofer level and Crossover can be
selectedandadjusted.
The 4 presets on the NXLCDC can be programmed to recall up to 4 individual
configurationssavedtotheNXLCDC. Theusercaneasilytoggleconfigurationsbiased
toward'classical'vs'techno'musicforinstance.
There is also a Mini-USB PC computer input connection at the front of the controller.
This is to allow PCs with the NXCS software installed the convenience of connecting
and controlling the amps through the NXLCDC instead of having to run additional
cables.
NXLCRemoteLevelControl: TheNXLCis aremotelevelcontrolthat giveshands-
on-control over the amplifier(s) output level. The
NXLC operates through the amplifier’s DSP Netlink
connection and features an intelligent circuit
allowing you to select which amplifier and/or
channels you would like to control remotely.
Additionally, only one remote is needed to control
ENGLISH
2

SAFETY PRECAUTIONS
Fuseamplifier’spowerwireatthebattery.
Be sure to fuse the power wire within 6” of the car's battery. This will protect the car's
battery in case of a short circuit between the power amplifier and battery. THIS IS A
MUST, the amplifier's built-in fuse will only protect the power amplifier not the car's
battery!
Usehighgradewireconnectors.
Toensure maximumpowertransferand secure safe connections,itisrecommended to
use high grade barrier spades (for connection at amplifier) and terminal rings (for
connectionatbattery).
Donotrunanywiresunderneathvehicle.
Exposedwireshaveachanceofbeingcutordamaged. Itisbesttorunallwiresthrough
thevehicleunder the carpet and/or sidepanels. Thislends toacleanerinstallationand
lessriskofdamage.
Usecautionwhenmountingamplifier.
Remember there are many electrical wires, gas lines, vacuum lines, brake lines as well
as a gas tank in the automobile. Make sure you know where they are when mounting
theamplifiertoavoidpuncturinglines,shortingwiresordrillingholesinthegastank.
Runsignalwiresawayfromelectricalwires.
Toavoidpossibilityofinducednoisefromthecar'selectricalsystem(i.e.poppingnoises
orenginenoise),runwiresawayfromthecar'selectricalwiring.
Makeallgroundwiresasshortaspossibleandatthesamepoint.
In order to reduce the chance of ground loops (i.e. engine noise), make the grounding
wire as short as possible to reduce the wire's resistance. Also, when using multiple
components,makesureallunitsaregroundedatthesamepoint.
Avoidsharpedgeswhenrunningthewires.
To avoid the possibility of power, signal or speaker shorts, be careful not to allow the
amplifier’swirestocomeincontactwithsharpedges. Useagrommettoprotectthewire
whenrunningthroughthefirewall.
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3

FEATURES AND BENEFITS
DigitalSignalProcessor
Built-in Digital Signal Processor that can be electronically controlled by the NXLCDC,
NXLI or NXCS (Sold Separately). The processor features the adjustment of gain, X-
over,tone,timedelay,equalization.
DCOffsetProtection
This circuit protects the output of the amplifier against DC voltage. If for some reason
DC voltage is detected at the output stage, the amplifier will shut down protecting the
speakersfromdirectcurrent.
ShortCircuitProtection
The circuit protects the amplifier from damage due to a short found in the speakers or
wiring.Ifoneof thespeakersoritswiring comesincontactwithground, theamplifierwill
shutdown. Toresume normal operation, correct the problem and turn the head unit off,
thenbackon. Theamplifierwillresetandplayagain.
Thermal Protection
To protect the amplifier circuitry against damage caused by prolonged exposure to high
temperatures, a thermal protection circuit is activated if the amplifier reaches
excessively high operating temperature. Once the thermal circuit is activated, the
amplifier will shut down to cool off. The amplifier will automatically turn back on once it
coolsdowntoasafeoperatingtemperature.
Power/Protect Indicator
The power LED Illuminates blue when the amplifier is on and receiving power. The
protect LED Illuminatesredwhentheamplifierhasgoneintoprotectionmode.
PowerBridgeTechnology(NX1000.1&2000.1)
NXS’ Power Bridge technology gives you the flexibility to combine the power of two
NX1000.1amplifiersortwoNX2000.1todoubletheoutputpowerintoonespeakerload.
HighLevel Input
High Level inputs have been included to connect the amplifier to a radio without low-
leveloutputs(i.e.factoryradio).
RemoteAutoSensingforHighLevel Input
Foraddedconveniencewhenconnectingtofactoryinstalledradio’s,thehighlevelinput
has a ‘Remote Auto Sensing” circuit allowing the amplifier to turn on when it receives
signalfromtheradio.
4
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LineOut(NX200.2,400.2,400.4&500.1)
One set of full range line outputs have been provided for convenient connection to
additionalamplifiersinthesystem.
Power Fusing
Thisprotectstheamplifieragainstshortcircuitsandexcessivecurrent.
Remote Turn-on
Automatically turns amplifier on when connected to the head unit's remote output. The
amplifierwillturnonandoffwiththeheadunittosavecurrentconsumption. Thiscontrol
also operates the reset circuit for the amplifier's protection. It must be connected with
theheadunitinordertoresetprotectioncircuits.
Adjustable Input Sensitivity
Allowsyoutofine-tunethelevelmatchingbetweenyoursourceandthepoweramplifier.
5
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MOUNTING LOCATION
Before you start the installation, it will be necessary to find a mounting location for the
amplifier. Findalocationinwhichtheamplifierwillreceiveadequateventilationinorder
to dissipate the heat it develops during operation. Two popular mounting locations are
inthetrunkorundertheseat.
Select the location in which you wish to mount the amplifier. Use caution when
mountingamplifier,therearemanywires,gaslines,vacuumlines,brakelinesaswellas
a gas tank in the automobile. Make sure you know where they are when mounting the
amplifiertoavoidpuncturinglines,shortingwiresordrillingholesinthegastank. Once
you are ready, use a pencil to mark the mounting holes in the bottom panel. After you
have marked the locations of the holes move amplifier out of the way and drill small
starter holes to make the tapping screws easier to install. Use provided screws to
tightendowntheamplifier.
HIGH LEVEL
CH1&2
NX400.4
CH3&4
MAXMIN
INPUT
LEVEL
INPUTCH3CH1
CH4CH2
OUTPUT
ON
OFF
L
R
DSP NETLINK
IN OUT
8A4 2 1/2
13/4
PRIMARYAMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS REMOTE
AUTO SENSING
ON OFF
SPEAKERS
BRIDGED
CH2CH1 CH3
BRIDGED
PRT
PWR
CH4 FUSE
60A
POWER
+12V REM GND
6
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POWER BRIDGE
POWER REMOTE
IN
GND +12V FUSE
HIGH
LEVEL INPUT
LEVEL
MIN MAX
INPUT
L
R
IN
OUT
PRT
MASTER
MODE
SLAVE PWR
SPEAKER
NX2000.1
80A
REMOTE
AUTO SENSING
ON
DSP NETLINK
IN OUT
8A
4 2 1
PRIMARYAMP
ADDRESS MULTI-AMP ADDRESS
OFF
ON
OFF
SW
LEVEL
CONTROL
FUSE
80A
POWER CONNECTIONS (NX2000.1)
IMPORTANT! Before making any connections, disconnect the car’s battery until
the installation is completed to avoid possible damage to the electrical system.
CAR BATTERY
+12V
--
++RADIO'S REMOTE
TURN-ON OUTPUT
“REMOTE AUTO SENSING” SWITCH
MUST BE IN THE “OFF” POSITION
FOR THE AMPLIFIER TO TURN ON
IN-LINE POWER FUSE
MOUNTED WITHIN 6"
FROM BATTERY RECOMMENDED
GROUND
(NOT PROVIDED)
Connecttheamplifiertothecar'sbattery.
Attimes,theamplifierwillneedtodrawlargelevelsofcurrentthatcannotbeprovidedby
any circuit in the car's fuse box. We recommend using a 2 gauge power wire for your
connectionsdependingontheamplifierandlengthofthewire. Striponeendofthewire
and connect to the terminal on the amplifier marked “+12V”. Loosen the set screw on
theterminalandinsertwireandtighten. Usecautiontomakesurenostraywirestrands
come in contact with surrounding terminals causing short circuits. Run the wire directly
to the positive terminal of the car's battery. Make sure to use an in-line fuse within 6” of
the car's battery to protect the electrical system and amplifier against short circuits
and/orpowersurges.
Connectthegroundterminaloftheamplifiertothecar'schassis.
Forthegroundconnection,usea2gaugewire(black)toconnecttotheterminalmarked
“GND” and then connect it to the car's chassis. Try to keep the length of the cable as
shortaspossible,preferablylessthan6". Makesurethatthepointonthecarwherethe
connectionistobemadeisfreeofpaintanddirt.
Connecttheremoteterminaloftheamplifiertoaswitchable+12Vsource.
Please note: If you intend to use the high level inputs for your signal connections, we
provide a “Remote Auto Sensing” feature that will automatically turn-on the amplifier
whenthehighlevelinputssenseinputsignal. Pleaseskipthisstepandseepage12.
Thisconnection allowstheamplifier tobeturned onandoffwith thepowercontrol ofthe
radio. If the radio has a REMOTE output terminal, connect it to the amplifier's terminal
marked“REM”(usinga16gaugewireorheavier). Nowwhentheradioisturnedon,the
amplifier will automatically turn on. When using this wire, the “REMOTE AUTO
SENSING”switchshouldbeinthe“OFF”position.
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7

POWER BRIDGE
POWER
REMGND +12V FUSE
REMOTE
AUTO SENSING
ON
DSP NETLINK
IN OUT
8A
4 2 1
PRIMARY AMP
ADDRESS MULTI-AMP ADDRESS
OFF
HIGH
LEVEL
ON
OFF
SW
LEVEL
CONTROL INPUT
LEVEL
MIN MAX
INPUT
L
R
IN
OUT
PRT
MASTER
MODE
SLAVE
PWR
SPEAKER
NX1000.1
100A
POWER CONNECTIONS (NX500.1, 900.5 )& 1000.1
IMPORTANT! Before making any connections, disconnect the car’s battery until
the installation is completed to avoid possible damage to the electrical system.
CAR BATTERY
+12V
--
++
RADIO'S REMOTE
TURN-ON OUTPUT
“REMOTE AUTO SENSING” SWITCH
MUST BE IN THE “OFF” POSITION
FOR THE AMPLIFIER TO TURN ON
IN-LINE POWER FUSE
MOUNTED WITHIN 6"
FROM BATTERY RECOMMENDED
GROUND
(NOT PROVIDED)
Connecttheamplifiertothecar'sbattery.
Attimes,theamplifierwillneedtodrawlargelevelsofcurrentthatcannotbeprovidedby
any circuit in the car's fuse box. We recommend using a 4 gauge power wire for your
connectionsdependingontheamplifierandlengthofthewire. Striponeendofthewire
and connect to the terminal on the amplifier marked “+12V”. Loosen the set screw on
theterminalandinsertwireandtighten. Usecautiontomakesurenostraywirestrands
come in contact with surrounding terminals causing short circuits. Run the wire directly
to the positive terminal of the car's battery. Make sure to use an in-line fuse within 6” of
the car's battery to protect the electrical system and amplifier against short circuits
and/orpowersurges.
Connectthegroundterminaloftheamplifiertothecar'schassis.
Forthegroundconnection,usea4gaugewire(black)toconnecttotheterminalmarked
“GND” and then connect it to the car's chassis. Try to keep the length of the cable as
shortaspossible,preferablylessthan6". Makesurethatthepointonthecarwherethe
connectionistobemadeisfreeofpaintanddirt.
Connecttheremoteterminaloftheamplifiertoaswitchable+12Vsource.
Please note: If you intend to use the high level inputs for your signal connections, we
provide a “Remote Auto Sensing” feature that will automatically turn-on the amplifier
whenthehighlevelinputssenseinputsignal. Pleaseskipthisstepandseepage12.
Thisconnection allowstheamplifier tobeturned onandoffwith thepowercontrol ofthe
radio. If the radio has a REMOTE output terminal, connect it to the amplifier's terminal
marked“REM”(usinga16gaugewireorheavier). Nowwhentheradioisturnedon,the
amplifier will automatically turn on. When using this wire, the “REMOTE AUTO
SENSING”switchshouldbeinthe“OFF”position.
8
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50A
DSP NETLINK
IN OUT
MAX
POWER
+12V REM GND
SPEAKERS
PWR
PRT
LRFUSE
BRIDGED
INPUT
L
OUTPUT
R
HIGH
LEVEL INPUT
LEVEL
MIN
L
R
NX400.2
REMOTE
AUTO SENSING
PRIMARYAMP
ADDRESS MULTI-AMP ADDRESS LEVEL
CONTROL
ON
ON OFF OFF 84 2 1 A SW
POWER CONNECTIONS (NX200.2, 400.2 & 400.4)
IMPORTANT! Before making any connections, disconnect the car’s battery until
the installation is completed to avoid possible damage to the electrical system.
CAR BATTERY
+12V
--
++
RADIO'S REMOTE
TURN-ON OUTPUT
“REMOTE AUTO SENSING” SWITCH
MUST BE IN THE “OFF” POSITION
FOR THE AMPLIFIER TO TURN ON
IN-LINE POWER FUSE
MOUNTED WITHIN 6"
FROM BATTERY RECOMMENDED
GROUND
(NOT PROVIDED)
Connecttheamplifiertothecar'sbattery.
Attimes,theamplifierwillneedtodrawlargelevelsofcurrentthatcannotbeprovidedby
any circuit in the car's fuse box. We recommend using a 4 or 8 gauge power wire for
yourconnectionsdependingontheamplifierandlengthofthewire. Striponeendofthe
wireand connect to the terminalon the amplifier marked“+12V”. Loosen the set screw
on the terminal and insert wire and tighten. Use caution to make sure no stray wire
strands come in contact with surrounding terminals causing short circuits. Run the wire
directly to the positive terminal of the car's battery. Make sure to use an in-line fuse
within 6” of the car's battery to protect the electrical system and amplifier against short
circuitsand/orpowersurges.
Connectthegroundterminaloftheamplifiertothecar'schassis.
For the ground connection, use a 4 or 8 gauge wire (black) to connect to the terminal
marked “GND” and then connect it to the car's chassis. Try to keep the length of the
cable as short as possible, preferably less than 6". Make sure that the point on the car
wheretheconnectionistobemadeisfreeofpaintanddirt.
Connecttheremoteterminaloftheamplifiertoaswitchable+12Vsource.
Please note: If you intend to use the high level inputs for your signal connections, we
provide a “Remote Auto Sensing” feature that will automatically turn-on the amplifier
whenthehighlevelinputssenseinputsignal. Pleaseskipthisstepandseepage12.
Thisconnection allowstheamplifier tobeturned onandoffwith thepowercontrol ofthe
radio. If the radio has a REMOTE output terminal, connect it to the amplifier's terminal
marked“REM”(usinga16gaugewireorheavier). Nowwhentheradioisturnedon,the
amplifier will automatically turn on. When using this wire, the “REMOTE AUTO
SENSING”switchshouldbeinthe“OFF”position.
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9

50A
DSP NETLINK
IN OUT
MAX
POWER
+12V REM GND
SPEAKERS
PWR
PRT
LRFUSE
BRIDGED
INPUT
L
OUTPUT
R
HIGH
LEVEL INPUT
LEVEL
MIN
L
R
NX400.2
REMOTE
AUTO SENSING
PRIMARYAMP
ADDRESS MULTI-AMP ADDRESS LEVEL
CONTROL
ON
ON OFF OFF 84 2 1 A SW
POWER BRIDGE
POWER
REMGND +12V FUSE
REMOTE
AUTO SENSING
ON
DSP NETLINK
IN OUT
8A
4 2 1
PRIMARY AMP
ADDRESS MULTI-AMP ADDRESS
OFF
HIGH
LEVEL
ON
OFF
SW
LEVEL
CONTROL INPUT
LEVEL
MIN MAX
INPUT
L
R
IN
OUT
PRT
MASTER
MODE
SLAVE
PWR
SPEAKER
NX1000.1
100A
SIGNAL CONNECTIONS
Connect the RCAoutput of the head unit (AM/FM cassette player, CD, or DAT) to
theRCAinputterminalsoftheamplifier.
To make these connections, we recommend high quality RCA cables, which are
available at your local car audio retailer. Run signal wires away from electrical wires to
avoidpossibility ofinducednoise fromthecar'selectricalsystem (i.e.poppingnoises or
engine noise). Please note that when making these connections the signal inputs
correspondwiththespeakeroutputs.
LL
LL
LL
RR
Optional full range output
for additional amplifiers in
the system.
RR
RR
NX1000.1 & 2000.1 CONNECTIONS NX200.2, 400.2 & 500.1 CONNECTIONS
The NX400.4 allows for two or four channel input configurations. This gives the
flexibilityof using only two channelsof input and the amplifierautomatically divides the
signal internally for four channels of output (Non Fading). The four channel input
configuration offers normal independent operation allowing for front and rear fading
capabilitythroughtheheadunit.
HIGH LEVEL
CH1&2
NX400.4
CH3&4
MAXMIN
INPUT
LEVEL
INPUTCH3CH1
CH4CH2
OUTPUT
ON
OFF
L
R
DSP NETLINK
IN OUT
8A4 2 1/2
13/4
PRIMARY AMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS REMOTE
AUTO SENSING
ON OFF
SPEAKERS
BRIDGED
CH2CH1 CH3
BRIDGED
PRT
PWR
CH4 FUSE
60A
POWER
+12V REM GND
LL
RR
NX400.4 CONNECTIONS
USING TWO CHANNEL INPUT
LL
RR
Optional full range output
for additional amplifiers in
the system.
HIGH LEVEL
CH1&2
NX400.4
CH3&4
MAXMIN
INPUT
LEVEL
INPUTCH3CH1
CH4CH2
OUTPUT
ON
OFF
L
R
DSP NETLINK
IN OUT
8A4 2 1/2
13/4
PRIMARY AMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS REMOTE
AUTO SENSING
ON OFF
SPEAKERS
BRIDGED
CH2CH1 CH3
BRIDGED
PRT
PWR
CH4 FUSE
60A
POWER
+12V REM GND
LL
RR
LL
RR
Optional full range output
for additional amplifiers in
the system.
LL
RR
NX400.4 CONNECTIONS
USING FOUR CHANNEL INPUT
10
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HIGH LEVEL
CH1&2
NX900.5
CH3&4 MAXMIN
INPUT
LEVEL
HIGH
LEVEL
CH3CH1
CH4CH2
ON
OFF
L
R
DSP NETLINK
IN OUT
8A4 2 1/2
13/4
PRIMARYAMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS REMOTE
AUTO SENSING
ON OFF
SPEAKERS
BRIDGED
CH2CH1 CH5 CH3
BRIDGED
PRT
PWR
CH4 FUSE
60A
POWER +12V
REMGND
CH5
CH5
INPUT
CH5
MAXMIN
INPUT
LEVEL FUSE
60A
POWER SPEAKER
The NX900.5 allows for two, four or five channel input configurations. This gives the
flexibilityof using only two channelsof input and the amplifierautomatically divides the
signalinternallyforfivechannelsofoutput(NonFading). Thefourorfivechannelinput
configuration offers normal independent operation allowing for front and rear fading
capabilitythroughtheheadunit.
LL
RR
NX900.5 CONNECTIONS
USING TWO CHANNEL INPUT NX900.5 CONNECTIONS USING FOUR CHANNEL INPUT
HIGH LEVEL
CH1&2
NX900.5
CH3&4 MAXMIN
INPUT
LEVEL
HIGH
LEVEL
CH3CH1
CH4CH2
ON
OFF
L
R
DSP NETLINK
IN OUT
8A4 2 1/2
13/4
PRIMARYAMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS REMOTE
AUTO SENSING
ON OFF
SPEAKERS
BRIDGED
CH2CH1 CH5 CH3
BRIDGED
PRT
PWR
CH4 FUSE
60A
POWER +12V
REMGND
CH5
CH5
INPUT
CH5
MAXMIN
INPUT
LEVEL FUSE
60A
POWER SPEAKER
HIGH LEVEL
CH1&2
NX900.5
CH3&4 MAXMIN
INPUT
LEVEL
HIGH
LEVEL
CH3CH1
CH4CH2
ON
OFF
L
R
DSP NETLINK
IN OUT
8A4 2 1/2
13/4
PRIMARYAMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS REMOTE
AUTO SENSING
ON OFF
SPEAKERS
BRIDGED
CH2CH1 CH5 CH3
BRIDGED
PRT
PWR
CH4 FUSE
60A
POWER +12V
REMGND
CH5
CH5
INPUT
CH5
MAXMIN
INPUT
LEVEL FUSE
60A
POWER SPEAKER
LL
LL
RR
RR
LL
LL
RR
RR
LL
RR
FRONT REAR SUBREAR
NX900.5 CONNECTIONS
USING FIVE CHANNEL INPUT
11
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NX200.2 NX400.2 & NX1000.1 CONNECTIONS:
FLOATING GROUND RADIO (MOST COMMON TYPE)
High Level inputs have been included to connect the amplifier to a radio without low-
leveloutputs(i.e.factoryradio). Thisconnectionwillallowyoutoconnectdirectly tothe
speakeroutputoftheradiowithouttheneedofanexternaladapter.
Foraddedconveniencewhenconnectingtofactoryinstalledradio’s,thehighlevelinput
has a ‘Remote Auto Sensing” circuit allowing the amplifier to turn on when it receives
signalfromtheradio.
HIGH LEVEL CONNECTIONS (OPTIONAL)
POWER BRIDGE
POWER
REMGND +12V FUSE
REMOTE
AUTO SENSING
ON
DSP NETLINK
IN OUT
8A
4 2 1
PRIMARY AMP
ADDRESS MULTI-AMP ADDRESS
OFF
HIGH
LEVEL
ON
OFF
SW
LEVEL
CONTROL INPUT
LEVEL
MIN MAX
INPUT
L
R
IN
OUT
PRT
MASTER
MODE
SLAVE
PWR
SPEAKER
NX1000.1
100A
REMOTE
AUTO SENSING
ON OFF
RIGHT +RIGHT +
RIGHT +RIGHT +
RIGHT -RIGHT -
RIGHT -RIGHT -
LEFT -LEFT -
LEFT -LEFT -
LEFT +LEFT +
LEFT +LEFT +
WHITEWHITE
WHITE (CH3+)WHITE (CH3+)
GRAYGRAY
GRAY (CH4+)GRAY (CH4+)
WHITE/BLACKWHITE/BLACK
WHITE/BLACK (CH3 -)WHITE/BLACK (CH3 -)
GRAY/BLACKGRAY/BLACK
GRAY/BLACK (CH4-)GRAY/BLACK (CH4-)
HIGH LEVEL
CH1&2
NX400.4
CH3&4
MAXMIN
INPUT
LEVEL
INPUTCH3CH1
CH4CH2
OUTPUT
ON
OFF
L
R
DSP NETLINK
IN OUT
8A4 2 1/2
13/4
PRIMARY AMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS REMOTE
AUTO SENSING
ON OFF
SPEAKERS
BRIDGED
CH2CH1 CH3
BRIDGED
PRT
PWR
CH4 FUSE
60A
POWER
+12V REM GND
RIGHT +RIGHT +
RIGHT -RIGHT -
LEFT -LEFT -
LEFT +LEFT +WHITE (CH1+)WHITE (CH1+)
GRAY (CH2+)GRAY (CH2+)
WHITE/BLACK (CH1-)WHITE/BLACK (CH1-)
GRAY/BLACK (CH2-)GRAY/BLACK (CH2-)
NX400.4 CONNECTIONS:
FLOATING GROUND RADIO (MOST COMMON TYPE)
The Remote Auto Sensing
Switch is in the “ON” position.
REMOTE
AUTO SENSING
ON OFF
The Remote Auto Sensing
Switch is in the “ON” position.
RCA Plugs
(Included)
TheNX400.4 allowsfor2 channelor4
c h a n n e l h i g h l e v e l i n p u t
configurations. When you only
connect the CH1 & CH2 input, the
amplifier automatically divides the
signal internally for four channels of
output (Non Fading). If you are using
the 4 channel input configuration (as
shown), then you must use the
suppliedRCAplugsforchannel3&4.
12
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RIGHT +RIGHT +
RIGHT -RIGHT -
LEFT -LEFT -
LEFT +LEFT +WHITE (CH5+)WHITE (CH5+)
GRAY (CH5+)GRAY (CH5+)
WHITE/BLACK (CH5 -)WHITE/BLACK (CH5 -)
GRAY/BLACK (CH5-)GRAY/BLACK (CH5-)
RIGHT +RIGHT +
RIGHT -RIGHT -
LEFT -LEFT -
LEFT +LEFT +WHITE (CH3+)WHITE (CH3+)
GRAY (CH4+)GRAY (CH4+)
WHITE/BLACK (CH3-)WHITE/BLACK (CH3-)
GRAY/BLACK (CH4-)GRAY/BLACK (CH4-)
NX900.5 CONNECTIONS:
USING FOUR OR FIVE CHANNEL INPUT
FLOATING GROUND RADIO (MOST COMMON TYPE)
REMOTE
AUTO SENSING
ON OFF
The Remote Auto Sensing
Switch is in the “ON” position.
The NX900.5 allows for 2 channel, 4 channel or 5 channel high level input
configurations. When you only connect the CH1 & CH2 input, the amplifier
automaticallydividesthesignalinternallyforfivechannelsofoutput(NonFading).
13
HIGH LEVEL
CH1&2
NX900.5
CH3&4 MAXMIN
INPUT
LEVEL
HIGH
LEVEL
CH3CH1
CH4CH2
ON
OFF
L
R
DSP NETLINK
IN OUT
8A4 2 1/2
13/4
PRIMARYAMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS REMOTE
AUTO SENSING
ON OFF
SPEAKERS
BRIDGED
CH2CH1 CH5 CH3
BRIDGED
PRT
PWR
CH4 FUSE
60A
POWER +12V
REMGND
CH5
CH5
INPUT
CH5
MAXMIN
INPUT
LEVEL FUSE
60A
POWER SPEAKER
RIGHT +RIGHT +
RIGHT -RIGHT -
LEFT -LEFT -
LEFT +LEFT +WHITE (CH1+)WHITE (CH1+)
GRAY (CH2+)GRAY (CH2+)
WHITE/BLACK (CH1 -)WHITE/BLACK (CH1 -)
GRAY/BLACK (CH2-)GRAY/BLACK (CH2-)
HIGH LEVEL
CH1&2
NX900.5
CH3&4 MAXMIN
INPUT
LEVEL
HIGH
LEVEL
CH3CH1
CH4CH2
ON
OFF
L
R
DSP NETLINK
IN OUT
8A4 2 1/2
13/4
PRIMARYAMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS REMOTE
AUTO SENSING
ON OFF
SPEAKERS
BRIDGED
CH2CH1 CH5 CH3
BRIDGED
PRT
PWR
CH4 FUSE
60A
POWER +12V
REMGND
CH5
CH5
INPUT
CH5
MAXMIN
INPUT
LEVEL FUSE
60A
POWER SPEAKER
NX900.5 CONNECTIONS
USING TWO CHANNEL INPUTFLOATING GROUND RADIO (MOST COMMON TYPE)
RIGHT +RIGHT +
RIGHT -RIGHT -
LEFT -LEFT -
LEFT +LEFT +WHITEWHITE
GRAYGRAY
WHITE/BLACKWHITE/BLACK
GRAY/BLACKGRAY/BLACK
FRONT
REAR
SUB
REMOTE
AUTO SENSING
ON OFF
The Remote Auto Sensing
Switch is in the “ON” position.
(OPTIONAL CONNECTIONS)(OPTIONAL CONNECTIONS)
ENGLISH

POWER BRIDGE
POWER
REMGND +12V FUSE
REMOTE
AUTO SENSING
ON
DSP NETLINK
IN OUT
8A
4 2 1
PRIMARY AMP
ADDRESS MULTI-AMP ADDRESS
OFF
HIGH
LEVEL
ON
OFF
SW
LEVEL
CONTROL INPUT
LEVEL
MIN MAX
INPUT
L
R
IN
OUT
PRT
MASTER
MODE
SLAVE
PWR
SPEAKER
NX1000.1
100A
POWER
REMGND +12V FUSE
60A
DSP NETLINK
IN OUT
HIGH
LEVEL
REMOTE
AUTO SENSING
ON OFF
8A
4 2 1
PRIMARY AMP
ADDRESS MULTI-AMP
ADDRESS
ON
OFF
SW
LEVEL
CONTROL INPUT
LEVEL
MIN MAX
NX500.1
SPEAKER
INPUT OUTPUT
R
L
PRT
PWR
Makethespeakerconnectionsusingspeakerwirethatisatleast16gaugeorheavier.
Aswith anyaudiocomponent,proper phasingoftheamplifier andspeakersisessential
for strong bass response. When connecting, make sure that positive (+) from the
amplifierisconnectedtothepositive(+)ofthespeaker,andthesamefornegative(-).
we have
provided two sets of speaker terminals on the amplifier. These terminals are connected
in parallel internally (connected together). The second set of speaker terminals are
intendedforeaseofconnectionwhenrunningmultiplewoofers.
Please note that although the NX2000.1 and NX1000.1 are mono amplifiers,
SPEAKER CONNECTIONS
IMPORTANT! The speaker connections
shown for the NX1000.1 is a normal mono
configuration. If you are using more than
one NX1000.1 or NX2000.1 in a Power
Bridge configuration, please see speaker
connections in the Power Bridge section of
thismanual.
(*1 Ohm Load)
Dual 4 Ohm Woofer Dual 4 Ohm Woofer
++
++
--
--
++
++
--
--
**CAUTION! The NX1000.1 and NX2000.1 must
seea1Ohmloadorhigher. Anylowerthan1Ohm
will cause the amplifier to overheat and possibly
causepermanentdamagetotheamplifier!
**CAUTION! The NX500.1
must see a 2 Ohm load or
higher. Any lower than 2 Ohm
will cause the amplifier to
overheat and possibly cause
permanent damage to the
amplifier!
NX1000.1 & NX2000.1 CONNECTIONS
14
Dual 4 Ohm Woofer (2 Ohm)
(2 Ohm Minimum)
++
++
--
--
NX500.1 CONNECTIONS
ENGLISH

HIGH LEVEL
CH1&2
NX900.5
CH3&4 MAXMIN
INPUT
LEVEL
HIGH
LEVEL
CH3CH1
CH4CH2
ON
OFF
L
R
DSP NETLINK
IN OUT
8A4 2 1/2
13/4
PRIMARYAMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS REMOTE
AUTO SENSING
ON OFF
SPEAKERS
BRIDGED
CH2CH1 CH5 CH3
BRIDGED
PRT
PWR
CH4 FUSE
60A
POWER +12V
REMGND
CH5
CH5
INPUT
CH5
MAXMIN
INPUT
LEVEL FUSE
60A
POWER SPEAKER
Dual 4 Ohm Woofer (2 Ohm)
(2 Ohm Minimum)
++
++
--
--
NX900.5 CONNECTIONS
SPEAKERS POWER
+12V REM GND
LR
PRT
PWR
NX200.2
HIGH
LEVEL
INPUT OUTPUT PRIMARY AMP
ADDRESS
REMOTE
AUTO SENSING
MULTI-AMP
ADDRESS LEVEL
CONTROL
ON
ON 84 2 1 A SW OFF OFF
FUSE
25A
IN OUT
DSP NETLINK
BRIDGED
L
R
L
R
4 Ohm Speaker
(2 Ohm Minimum)
4 Ohm Speaker
(2 Ohm Minimum)
++
--
++
--
4 Ohm Speaker
(2 Ohm Minimum)
4 Ohm Speaker
(2 Ohm Minimum)
4 Ohm Speaker
(2 Ohm Minimum)
4 Ohm Speaker
(2 Ohm Minimum)
++
--
++
--
4 Ohm Speaker
(2 Ohm Minimum)
4 Ohm Speaker
(2 Ohm Minimum)
HIGH LEVEL
CH1&2
NX400.4
CH3&4
MAXMIN
INPUT
LEVEL
INPUTCH3CH1
CH4CH2
OUTPUT
ON
OFF
L
R
DSP NETLINK
IN OUT
8A4 2 1/2
13/4
PRIMARY AMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS REMOTE
AUTO SENSING
ON OFF
SPEAKERS
BRIDGED
CH2CH1 CH3
BRIDGED
PRT
PWR
CH4 FUSE
60A
POWER
+12V REM GND
4 Ohm Speaker
(2 Ohm Minimum)
4 Ohm Speaker
(2 Ohm Minimum)
++
--
++
--
4 Ohm Speaker
(2 Ohm Minimum)
4 Ohm Speaker
(2 Ohm Minimum)
NX400.4 CONNECTIONS
NX200.2 & NX400.2 CONNECTIONS
**CAUTION! TheNX900.5mustseea2
Ohm load or higher. Any lower than 2
Ohm will cause the amplifier to overheat
and possibly cause permanent damage
totheamplifier!
15
ENGLISH

Adjustments of multiple amplifiers are made simple with NXS' proprietary DSP Netlink
system. Installation friendly RJ11 6 pin telephone cables make networking the
amplifiers a breeze. You can control up to 40 amplifiers with the NXLCDC in-dash
controller or using a NXLI and PC with NXCS control software. Amplifier addressing is
controlled by dip switches located at the front panel of every amplifier and once the
amplifier's address is set, users can choose which amp they want to
setup/adjust/controlviathein-dashcontrollerorPC.
Acombination of four dip switches
can be used to set up to 10
different primary amplifier
addresses.
The “MULTI-AMP ADDRESS” switch allows up to 4 amplifiers to share the same address. The
factory default setting is in the “OFF” position for the use of only one amplifier. If more than one
amplifiershare the same addressthe first amplifier is setto the “OFF” position andeach additional
amplifiermust beset tothe“ON”position.
Whenusingthetwo or four channel amplifiers to power
woofers,the“LEVELCONTROL” switch isturned“ON”
allowingtheoutputleveloftheamplifiertobecontrolled
bytheNXLCDCorNXLC.
DSP NETLINK CONNECTIONS AND ADDRESSING
NOTE! The DSP NETLINK connections and adjustments require the NXLCDC in-
dash controller or the NXLI and PC with NXCS control software (Sold Separately).
50A
DSP NETLINK
IN OUT
MAX
POWER
+12V REM GND
SPEAKERS
PWR
PRT
LRFUSE
BRIDGED
INPUT
L
OUTPUT
R
HIGH
LEVEL INPUT
LEVEL
MIN
L
R
NX400.2
REMOTE
AUTO SENSING
PRIMARYAMP
ADDRESS MULTI-AMP ADDRESS LEVEL
CONTROL
ON
ON OFF OFF 84 2 1 A SW
PRIMARY AMP
ADDRESS MULTI-AMP ADDRESS LEVEL
CONTROL
ON
OFF
84 2 1 A SW
ON
OFF
84 2 1
Address #1
ON
OFF
84 2 1
Address #2
ON
OFF
84 2 1
Address #3
ON
OFF
84 2 1
Address #4
ON
OFF
84 2 1
Address #5
ON
OFF
84 2 1
Address #6
ON
OFF
84 2 1
Address #7
ON
OFF
84 2 1
Address #8
ON
OFF
84 2 1
Address #9
ON
OFF
84 2 1
Address #10
PRIMARY AMP ADDRESS SETTINGS
VERY IMPORTANT! If only one amplifier is used for each address, the “MULTI-
LINK” switch must be in the “OFF” position (factory default) for the amplifier to be
controlled by the NXLCDC or NXLI.
16
ENGLISH

The following example shows a multiple amplifier installation adjusted by the optional
NXLCDC in dash controller. The NX400.4 powers four Mid/High speakers and two
NX1000.1’s power four woofers. The NX1000.1’s share the same DSP NETLINK
addresssotheamplifierscanbeadjustedtogether.
Ifmore than one amplifiershare
thesameaddress,oneneedsto
be set as the main amplifier for
the group. This is done by
setting the “MULTI-AMP
ADDRESS” to the “OFF”
position.
By default the level control for
the NX1000.1 is active at all
times regardless of the switch
position (This switch has no
function for the NX1000.1
only).
Because we already set the
NX1000.1 above as the main
amplifier, The MULTI-AMP
ADDRESS on this NX1000.1 is
setinthe“ON”position.
Mid/High SpeakersMid/High Speakers
++
--
++
--
Mid/High SpeakersMid/High Speakers
HIGH LEVEL
CH1&2
NX400.4
CH3&4
MAXMIN
INPUT
LEVEL
INPUTCH3CH1
CH4CH2
OUTPUT
ON
OFF
L
R
DSP NETLINK
IN OUT
8A4 2 1/2
13/4
PRIMARYAMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS REMOTE
AUTO SENSING
ON OFF
SPEAKERS
BRIDGED
CH2CH1 CH3
BRIDGED
PRT
PWR
CH4 FUSE
60A
POWER
+12V REM GND
ON
OFF
8A4 2 1/2
13/4
PRIMARY AMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS
Mid/High SpeakersMid/High Speakers
++
--
++
--
Mid/High SpeakersMid/High Speakers
NX400.4
INPUT
OUTPUT
Amplifier address
Is set at #1
NXLCDC
Amplifier address
is set at #2
NX1000.1
8A
4 2 1
PRIMARY AMP
ADDRESS MULTI-AMP ADDRESS
ON
OFF
SW
LEVEL
CONTROL
INPUT
POWER BRIDGE
POWER
REMGND +12V FUSE
REMOTE
AUTO SENSING
ON
DSP NETLINK
IN OUT
8A
4 2 1
PRIMARYAMP
ADDRESS MULTI-AMP ADDRESS
OFF
HIGH
LEVEL
ON
OFF
SW
LEVEL
CONTROL INPUT
LEVEL
MIN MAX
INPUT
L
R
IN
OUT
PRT
MASTER
MODE
SLAVE
PWR
SPEAKER
NX1000.1
100A
Dual 4 Ohm Woofer Dual 4 Ohm Woofer
++
++
--
--
++
++
--
--
NX1000.1 CONNECTIONS
NX1000.1
Amplifier address
is set at #2
8A
4 2 1
PRIMARY AMP
ADDRESS MULTI-AMP ADDRESS
ON
OFF
SW
LEVEL
CONTROL
By default the level control for
the NX1000.1 is active at all
times regardless of the switch
position (This switch has no
function for the NX1000.1
only).
INPUT
OUTPUT
POWER BRIDGE
POWER
REMGND +12V FUSE
REMOTE
AUTO SENSING
ON
DSP NETLINK
IN OUT
8A
4 2 1
PRIMARYAMP
ADDRESS MULTI-AMP ADDRESS
OFF
HIGH
LEVEL
ON
OFF
SW
LEVEL
CONTROL INPUT
LEVEL
MIN MAX
INPUT
L
R
IN
OUT
PRT
MASTER
MODE
SLAVE
PWR
SPEAKER
NX1000.1
100A
Dual 4 Ohm Woofer Dual 4 Ohm Woofer
++
++
--
--
++
++
--
--
17
ENGLISH

POWER BRIDGE
POWER
REMGND +12V FUSE
REMOTE
AUTO SENSING
ON
DSP NETLINK
IN OUT
8A
4 2 1
PRIMARYAMP
ADDRESS MULTI-AMP ADDRESS
OFF
HIGH
LEVEL
ON
OFF
SW
LEVEL
CONTROL INPUT
LEVEL
MIN MAX
INPUT
L
R
IN
OUT
PRT
MASTER
MODE
SLAVE
PWR
SPEAKER
NX1000.1
100A
POWER BRIDGE CONNECTIONS (OPTIONAL)
NXS’ Power Bridge technology gives you the flexibility to combine the power of two
NX1000.1 amplifiers or two NX2000.1 amplifiers to double the output power into one
speakerload.
The “Master” amplifier controls the level, crossover, equalization, subsonic filter for both the
masterandslaveamplifier.
IMPORTANT! In Power Bridge operation, both amplifiers must be the same model of equal
power.
POWER BRIDGE
POWER
REMGND +12V FUSE
REMOTE
AUTO SENSING
ON
DSP NETLINK
IN OUT
8A
4 2 1
PRIMARYAMP
ADDRESS MULTI-AMP ADDRESS
OFF
HIGH
LEVEL
ON
OFF
SW
LEVEL
CONTROL INPUT
LEVEL
MIN MAX
INPUT
L
R
IN
OUT
PRT
MASTER
MODE
SLAVE
PWR
SPEAKER
NX1000.1
100A
NX1000.1
++
--
NX1000.1
NXLCDC
LL
RR
MASTER
MODE
SLAVE
MASTER
MODE
SLAVE
MODE IS SET TO “SLAVE”
POSITION
MODE IS SET TO
“MASTER” POSITION
2 Ohm Minimum
**CAUTION! InthePowerBridgeconfigurationthepairofNX1000.1’sorNX2000.1’smustsee
a2Ohmloadorhigher. Anylowerthan2Ohmwillcausetheamplifierstooverheatandpossibly
causepermanentdamagetotheamplifiers!
18
ENGLISH
NX1000.1 & NX2000.1 CONNECTIONS

REMOTE LEVEL CONTROL (OPTIONAL)
The overall level of the amplifier can be adjusted using the NXLCDC or NXLC (sold
separately).Unlikeconventionallevelcontrols(Alsoknown asSub LevelControls),the
NXS level control is an intelligent circuit allowing you to select which amplifier and/or
channels youwouldliketoremotely control. Additionallyonlyone remoteisneeded to
controlmultipleamplifiers.
The following example shows a NX400.4 amplifier with channels 1 & 2 running the mid
and high speakers and channels 3 & 4 bridged running a single woofer. The level
controlhasbeenturned“ON”forchannels3&4sothewoofercanbeadjustedremotely
bythelevelcontrol(NXLCDCorNXLC).
++
--
Woofer
HIGH LEVEL
CH1&2
NX400.4
CH3&4
MAXMIN
INPUT
LEVEL
INPUTCH3CH1
CH4CH2
OUTPUT
ON
OFF
L
R
DSP NETLINK
IN OUT
8A4 2 1/2
13/4
PRIMARYAMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS REMOTE
AUTO SENSING
ON OFF
SPEAKERS
BRIDGED
CH2CH1 CH3
BRIDGED
PRT
PWR
CH4 FUSE
60A
POWER
+12V REM GND
ON
OFF
8A4 2 1/2
13/4
PRIMARY AMP
ADDRESS LEVEL
CONTROL
MULTI-AMP
ADDRESS
Mid/High Speakers
++
--
++
--
Mid/High Speakers
NX400.4
INPUT
LEVEL CONTROL IS
SWITCHED “ON” FOR
CHANNELS 3 & 4
NXLCDC
NXLC
CONTROL THE SUB LEVEL WITH
NXLCDC OR NXLC
LEVEL CONTROL IS
SWITCHED “OFF” FOR
CHANNELS 1 & 2
PLEASE NOTE: If a NX500.1, NX1000.1 or NX2000.1 is used in the system, the
amplifier’soutputlevelisautomaticallycontrolledbytheNXLCorNXLCDC.
19
ENGLISH