Outlaw 7900 User manual

2
Outlaw Audio
Owner’s Manual
Please Read First
Please Read First
CAUTION: Toreduce the risk ofelectric shock, donot removethe cover(or back).No
user serviceable parts inside. Refer to qualified personnel.
WARNING: To reduce the risk of fire or electric shock, do not expose this appliance
to rain or moisture.
The lightning flash with arrowhead, within an equilateral triangle, is
intended to alert the user to the presence of uninsulated “dangerous volt-
age” within the product’s enclosure that may be of sufficient magnitude
to constitute a risk of electrical shock to persons.
The exclamation point within an equilateral triangle is intended to alert
the user to the presence of important operating maintenance (servicing)
instructions in the literature accompanying the appliance.
Precautions
Verify The Line Voltage
Your new power amplifier has been factory configured for 2 x 120 (+/- 3%) volt AC lines.
Connecting the amplifier to a line voltage other than that for which it is intended can
create asafety and fire hazard, and maydamage the amplifier. If youhave anyquestions
about the voltage requirements for your specific model, or about the line voltage in your
area, contact Outlaw Audio before plugging the unit into a wall outlet.
Verify AC Circuit Capacity
The high power output of your Outlaw power amplifier may require heavy power draw
under full load conditions. To insure proper performance, and to avoid potential safety
hazards, werecommend that eachpower cord should beconnected to an outlet that ison
a separate branch supply. Connecting both power cords to the same supply circuit may
create a fire hazard and cause breakers to trip. Connecting the power cords to circuits
used by other heavy devices such as air conditioners may also create a fire hazard and
cause breakers to trip.
NOTE: It is always a good idea to avoid using any audio or video equipment on the
same AC circuit as equipment with motors, such as air conditioners or refrigerators.
This will lessen the possibility of power variation and electrical start-up noise affect-
ing your sound system.
Extension Cords and Power Strips
We do not recommend that extension cords be used with this product unless they are of
sufficientgaugetopassthenecessarycurrentduringfullloadconditions.Mostinexpensive
extension cords are not capable of such high-current loads.
Similarly, should you use a power strip, surge protector or any type of AC power line con-
ditioning equipment, make certain that it is also able to handle the high current loads
this product will produce.
Handle the AC Power Cords Gently
When disconnecting the power cords from an AC outlet, always pull the plug, never pull
the cord. If you do not intend to use the amplifier for any considerable length of time,
disconnect the plug from the AC outlet. If a power cord is replaced, make certain that it is
ofsimilargauge.Aswithallelectricaldevices,donotrunpowercordsunderrugsorcarpets
or place heavy objects on them. Damaged power cords should be replaced immediately
with cords meeting factory specifications.
Wiring
Cables that are run inside of walls should have the appropriate markings to indicate
complaince with, and listing by the UL , CSA or other standards required by the UL, CSA,
NEC or your local building. Questions about cables inside of walls should be referred to a
qualified customer installer, or a licensed electrician or low-voltage contractor.
Installation Location
Toassureproper operationandtoavoidthe potentialforsafetyhazards,placetheunitona
firmandlevelsurfacecapableofsupporting150poundsormore.Whenplacingtheamplifier
ona shelf,be certain thatthe shelf and anymounting hardware can support theweightof
the amplifier and any additional items in the equipment rack, or on the shelf.
When positioning the amplifier in its final location, make certain that it has adequate
ventilation on all sides, as well as on the top and bottom. In particular, it is a good idea to
provide at least six inches of room above the amplifier for air circulation. DO NOT place
CDs, DVDs, videotapes, owner’s manuals, orother paper ontop of, or beneath, the unit, or
in-between multiple amplifiers in a stack. This will block airflow, causing heat build-up,
degraded performance, and may create a possible fire hazard.
Iftheunitistobeenclosedinacabinetorrack,makecertain thereisadequateaircircula-
tion. Sufficient ventilation should be provided so that hot air may exit, and cool air may
enter the cabinet. A cooling fan is recommended to insure adequate airflow through the
cabinet. Ifyouareindoubtastotheventilationrequirements foryourspecificinstallation,
please contact us. Also, do not place the amplifier directly on a carpeted surface, as this
will inhibit airflow underneath as well as create a potential fire hazard.
Avoid installation in humid locations, in extremely hot or cold locations, or in areas that
are exposed to direct sunlight or space heating equipment.
Loudspeaker Ratings
Your Outlaw power amplifier has adequate power to drive most loudspeakers without
producing any distortion. Most modern speakers are rated at four to eight ohms nominal
impedance,butwithinsomefrequency ranges,the impedance maydroptotwoohms.The
Outlawisdesignedwithamplepowerreservestoprotectyoufromexperiencinganyproblems
at these low impeadances unless you demand excessively high volume levels.
Due to the high power output capability of your power amplifier, it is important that it not
be used with speakers not capable of handling the amplifier’s power output. Before using
the amplifier for the first time, make certain that your speakers are capable of handling
its rated power output, at the impedance rating of your speakers. Outlaw Audio is not
responsible for damage to any speaker system or other component that is caused by using
products whose power rating is lower than that of the amplifier.
Do Not Open The Cabinet
There are no user serviceable components inside this product. Opening the cabinet may
present a shock hazard, and any modification to the product will void your guarantee. If
water or any metal object, such as a paper clip, coin or a staple, accidentally falls inside
the unit, disconnect it from the AC power source immediately, and contact Outlaw Audio
for further instructions.
IMPORTANT SAFETY NOTE
Beforeconnectinganewcomponentsuchaspoweramplifiertoyouraudioorhometheater
system it is always good practice to make certain that all components are turned off, and
preferably unplugged from their AC power source. Many modern electronics products
feature automatic turn-on circuits that may be activated during an installation, causing
the potential for damage to electronic components and/or speakers. Such damage is not
covered by product warranties and Outlaw Audio specifically disclaims responsibility for
any such damage.
For Future Reference
Record your amplifier’s serial number and date of purchase here. It is found on the
back panel.
Model Number
Serial Number
Date of Purchase

3
Model 7900 7-Channel Power Amplifier
Owner’s Manual
Table of Contents
2 Please Read First
3 Table of Contents
3 Features
4 Unpacking
4 Rear Panel
4 Connecting Your Amplifier
4 Audio Signal Connections
4 Speaker Connections
6 Model 7900 Rear Panel Connections
7 Ground Wire Connection
7 Power Control Connections
7 Power Connection
8 Amplifier Operation
8 Manual On
8 Automatic On
8 Output Settings
8 Care and Maintenance
8 Cleaning
8 When You Are Away
8 Troubleshooting
8 Protection Circuitry
8 Outlaw Service Information
8 A Few Words About Hum and Noise
10 Potential Ground Loops in a Complex A/V System
10 Specifications
11 The Outlaw Audio 30-Day Satisfaction Guarantee
11 Outlaw Audio Limited Warranty
Model 7900
Seven-Channel Power Amplifier
Congratulations!AstheownerofanOutlawAudioMulti-ChannelPowerAmpli-
fier,youareinpossessionofauniqueproduct.Designedandmanufactured in
theUnitedStates,ithasbeenmeticulouslyconstructedtodeliverthebestpossible
sonic performance. This manual covers the Model 7900 Seven-Channel Fully
Balanced Power Amplifier. We welcome you as a member of our Outlaw band,
and hope that your new amplifier brings many years of enjoyable listening to
your music or home theater system.
In order to receive the maximum enjoyment from your new amplifier, please
take afew minutes toread thismanual. This importantinformationwill help
you make certain that the amplifier is properly configured for operation with
the rest of the equipment in your system. This brief investment of time will
provide major dividends by making certain that your amplifier is properly
installed and optimized for the specifics of your installation.
Ifyouhaveanyquestionsaboutthisproduct,itsinstallationoroperation,please
contact us via e-mail at [e-mail] or via telephone
at 866-OUTLAWS (688-5297).
Features
YournewFully-Balanced,DifferentialMulti-ChannelAmplifierisastate-of-the-
art,highperformanceaudiocomponentbuiltutilizingtotallycomplementary
circuitry from input to output. The high current power supply is driven by
custom-designed, dualtorrodialtransformers with multiplewindingsforeach
channel. Each output module has 24 discrete output devices, 36,000 µF total
filter capacitance and employs an advanced Opto-coupled protection circuit.
Heat management is provided not by noisy fans, but by custom-designed
heatsinks for each channel.
The Model 7900’s differential design virtually eliminates cross talk, through
atechnology known as “commonmoderejection”.Compared tosingle-ended
designs,theModel7900requireshalftherailvoltageforagivenpowerallowing
forincreasedtransientperformance. Inaddition,withaslewratenearlydouble
that of a comparable single-ended amp, the utmost control over transients is
maintainedensuringdistortionfreeperformance.Theresult:anamplifierthat
remains unequivocally true to the source material.
InputselectionoccursautomaticallyastheModel7900includesanautosens-
ingcircuittodeterminewhichInput(XLR orRCA),bychannel,isbeingused.
XLR cables provide a fully balanced signal path from Input to output and the
Model 7900’s RCA Inputs utilize a “semi-balanced” design, which provide a
cleaner signal path than traditional RCA connections.
Model 7900 7-Channel Power Amplifier
The contents ofthismanual are Copyright©2007byOutlaw Audio,LLC, andmay notbe
duplicated orreproduced byany means, whether physical, electronic or otherwise without
prior written consent from Outlaw Audio.
Outlaw Audio and the Outlaw Audio logo are registered trademarks of Outlaw
Audio, LLC.
Specifications are those in effect at the time of printing. Outlaw Audio reserves the right
to change specifications or designs at any time without notice or obligation to modify
existing units.

4
Outlaw Audio
Owner’s Manual
Unpacking
The carton and packing materials used in shipping your new amplifier were
speciallydesignedtocushionitfromtheshocksandvibrationoftransportation.
Westronglysuggestthatyousavethecartonandpackingmaterialstouseifyou
move, or if the unit ever needs to be shipped back to us for any reason.
Tominimizethesizeofthecartoninstorage,youmaywishtoflattenitbycare-
fullyopeningthetopandbottomflapsandfoldingthecarton.Othercardboard
inserts may be stored in the same manner. Packing materials that cannot be
collapsed should be saved along with the carton in a plastic bag.
Your new amplifier has been engineered using heavy-duty materials for high
reliability and weighs a considerable amount (115 pounds). This substantial
weightrequiresthatyoupayspecialattentiontotheunpackingandinstallation
of the unit. It is recommeneded that someone help you remove the unit from
its carton and place it in the proper location.
Model 7900 Rear Panel
AUnbalanced Audio Inputs
UsetheUnbalancedINPUTjackstoconnecttheRCAoutputsofasurround
processor, preamplifier, AV receiver with RCA pre-out connections, DVD
player with discrete five channel outputs, or HDTV product with built-in
surround decoder. (see this page)
BGround Terminal
Usethis terminal toconnectagroundwire between yourpoweramplifier
and pre-amp processor. (see page 7)
CRemote Trigger Input
Use the REMOTE TRIGGER jack to connect to a compatible processor or
other product with a 3-24 VDC output. (see page 7)
D

5
Model 7900 7-Channel Power Amplifier
Owner’s Manual
Connecting Your Amplifier
causeindistinctorconfusedimaging,andmuddledandcloudysounds.Toavoid
incorrectphasingorpolarity,be certaintousecablethathasdistinctmarkings,
colors, stripes, wording, or grooves on each side of the speaker cable.
IMPORTANT NOTE: Make sure the negative (–) speaker output is
NOT connected to signal or chassis ground anywhere in your system.
Damage to the power amplifier may result. The speaker outputs on your
amplifier are true balanced outputs. Both the (–) and (+) terminals are
active outputs. Connecting either of these terminals to anything else
will activate the amplifier’s protection circuits and may cause damage.
Some subwoofers have separate inputs for left and right speaker con-
nections. If you use these, make sure the (–) inputs are NOT connected
together. If they are, use only one set of inputs (left or right).
When making connections to the amp and speakers, adhere to a consistent
pattern of using one side of the wire to the red terminals and the other
side to the black terminals. When using cable with markings on one side
only,traditionalconventionistoconsiderthemarkedsideofthewireasthered,
or positive (+) connection, and the non-marked side as the black or negative
(–) connection.
Next, loosentheknobsoftheamplifier’sspeakeroutputterminals,far enough
sothatthepassthroughholeisrevealed.Notethatoneconductorofthespeaker
cable should have no markings, and the other should have a red line, brand
namemarkings,acoloredthread,orsomeotherpositiveindication.Followthe
properconnectioninstructionsforyoursystemwithregardtowhichterminals
are used. Once the connections are made, twist the cap back so that the con-
nection is secured, but do not over tighten or use tools, as this may break the
delicate wire strands and decrease system performance.
Ifyouareusingspade lugs,connectthemtothespeakerwire usingthemanu-
facturer’sinstructions,andthenloosenthecapsonthespeakerterminals.Place
lugs between the plastic cap and the back of the terminal. Be sure to observe
proper polarity, using the appropriate speaker hook-up icons for your system’s
configuration. Using your fingers, tighten to obtain a positive contact.

6
Outlaw Audio
Owner’s Manual
Model 7900 Rear Panel Connections
Connecting Your Amplifier

7
Model 7900 7-Channel Power Amplifier
Owner’s Manual
Connecting Your Amplifier
When using banana plugs, connections may be made by simply inserting the
jackaffixedtoyourspeakerwireintotheholeprovidedontherearofthecolored
screw capsonthebindingposts. Beforeusingbananatype jacks makecertain
that the plastic screw caps are firmly tightened down by turning them in a
clockwisedirectionuntiltheyaresnugagainstthechassis.Thiswillinsurethat
the maximum surface area of the plug is in contact with the jack. Be certain
to observe proper polarity.
Runthecablestothespeakerlocations.Itisrecommendedthatthelengthofwire
connecting any pair of speakers be similar. For example, make certain that the
wirelengthconnectingtheleftandrightfront,ortheleftandrightrear(surround)
speakersaresimilarinlength,eventhoughonespeakermaybephysicallycloser
totheamplifierthantheother.Donotcoilanyexcesscable,asthismaybecome
an inductor that creates frequency response variations in your system.
Finally,connectthewirestothespeakers,againbeingcertaintoobserveproper
polarity. Remember to connect your negative, or black wire, to the matching
terminal on the speaker. The positive, or red wire should be connected to the
matching terminal on the speaker.
NOTE: While most speaker manufacturers adhere to an industry conven-
tion of using red terminals for positive connections and black terminals
for negative, some manufacturers may vary from this configuration. To
assure proper phase connections, and optimal performance, consult the
identification plate on your speaker terminals, or the speaker’s manual
to verify polarity. If you do not know the polarity of your speaker, consult
the speaker’s manufacturer for further information.
Ground Wire Connection
Your Outlaw amplifier features a ground terminal to help reduce the likeli-
hood of ground loop potential issues between components in your system.
First, connect a thin gauge wire (20-24 gauge speaker wire is sufficient) to
the Model 7900’s ground terminal. Connect the other end of your ground
wire to the back of your pre-amp processor’s ground terminal (not the one
suppliedforyourphonostage). In theeventthatyourprocessordoes nothave
a dedicated ground terminal, you will need to use one of the chassis screws
on its rear panel.
Intheseinstances,itmaybenecessarytoscratchsomeofthepaintawaybehind
the chassis screw in order to provide a path to ground.
Power Control Connections
Your Outlaw amplifier features a built-in remote turn-on system that will
automatically switch the amplifier on when another device in the system is
switched up.
Remote Turn-On Using Products Equipped With a
12 Volt Trigger Jack
Press the frontpanelpowerswitch ontheamplifiersothatitisin the ONposi-
tion. Then, using an accessory cable with a 3.5mm mono mini-plug on each
end, connect the trigger-output jack on the rear of the source device to the
trigger input jack on the back panel of the amplifier. When these connections
are made, the amplifier will automatically turn on whenever the triggering
device is turned on.
Remote Turn on Using External AC to DC Power Converter
If your processor or receiver does not have a dedicated trigger jack, it is still
possible to activate the unit for automatic turn on when a Switched Outlet
is available on the rear of the source device. To control the amplifier in this
fashion you will need a small AC to DC power converter, capable of delivering
a 3 to 24 volt 5mA DC signal. The DC voltage should terminate in a standard
3.5mm type mini plug. This type of converter may be obtained as a Power
Adapter from many electronics retailers.
Wheninstalling,presstheMainPowerSwitchonthefrontpaneloftheamplifier
insothatitisintheONposition.PlugtheACadapterintoaswitchedoutletthat
willbeactivated whenyouwishtohavetheamplifierturn on.Thismaybe the
switchedoutletattherearofanAVreceiverorotheraudioequipment.Connect
the 3.5mm mini-plug from the adapter to the trigger-input jack on the back
panel of the amplifier. The amplifier will now turn on and off automatically,
based on the status of the controlling device.
Power Connection
Onceall audioand systemconnectionshavebeen made, connectthe supplied
powercordstotheamplifierfirst,andthenconnectthemtoseparateACoutlets.
Please make certain that the amplifier is turned off and that the device con-
nected to the remote trigger input is off when connecting the power cord and
plugging it into an AC outlet. Do not use extension cords, outlet power strips,
surgeprotectors orpower conditionersunless theyare capableof handlingthe
current draw of the Model 7900.
NOTE: In order to meet full rated output, the Model 7900's power cables
must be connected to two different branches of your electrical system (Ie.
two separate circuits). Failure to do so will limit the Model 7900's overall
power output capability and can lead to tripped circuit breakers.
CAUTION: Do not plug the Model 7900 into the Switched Accessory outlet
of another device! These outlets are intended for use with low current draw
products, such as tuners, CD players or cassette decks. These switched
outlets cannot handle the high current draw of a power amplifier. Using
these outlets for a power amplifier is a significant safety hazard.
IMPORTANT NOTE: The Model 7900 eliminates turn-on power surges
by employing an improved power controller which delays full start-up
about 25 seconds, allowing the unit to stabilize properly. Do not attempt
to play audio until the unit is ready and the power indicator light turns blue.
If multiple amplifiers are connected on the same circuit, there will be
insufficient power available for full-power operation. This may create a
fire hazard and cause mains breakers to trip. If you are using multiple
amplifiers, make sure they are connected to their own circuit.

8
Outlaw Audio
Owner’s Manual
Amplifier Operation
Afterallconnectionshavebeenmade,youarereadyforlistening.First,turnon
thesourcecomponents andprocessorinyoursystem.Adjustyourcontrolleror
preampto alowvolumeleveltoavoiddamagetoyourspeakers.Next,pushthe
twoMaster Powerswitches ontheback oftheamplifiertotheonposition.It is
always a good idea to turn on your amplifier LAST. This avoids the possibility
of any pops or transients from other equipment being amplified and sent to
your speakers where they may cause damage.
Manual On
Toturntheamplifieronmanually,pressthefrontpanelPower/Standbybutton.
After approximately 25 seconds, the unit will power up and the indicator light
will change to blue. This delay is intentional, and protects your speakers from
damage while the amplifier stabilizes. You may also hear a relay click during
start up. This is also normal.
Toturntheunitoff,pressthePower/Standbybuttonagain.Theindicatorlight
will change to orange.
Automatic On
Makecertainthattheconnectiontotheprocessor,orothercontrollingdeviceis
correct,as shownonpage5.Wheneverthecontrollingdevice isturnedon,the
amplifier will automatically turn on after a short pause. This pause is inten-
tional,anditprotectsyourspeakersfromdamagewhiletheamplifierstabilizes.
You may also hear a relay click as during start up. This is also normal.
To turn off your amplifier, simply turn off the unit that feeds the amplifier it’s
audio signals. The amplifier will automatically go into standby mode and the
indicator light will change to orange.
Output Settings
All volume and level adjustments are made at your preamp, controller or sur-
roundprocessor.Toassurepropersoundfieldimaging,itisalwaysagoodidea
to re-set the output levels of the channels on your processor when using the
amplifierforthefirsttime.Thecircuitryinyournewamplifiermaybedifferent
fromyourpreviousone,andbycheckingtheoutputlevelsyouwillmakecertain
that the processor, amplifier and speakers are properly matched.
Care and Maintenance
Cleaning
When the unit becomes dirty, wipe it with a clean, soft, dry cloth. If necessary,
firstwipethesurfacewithasoftclothslightlydampenedwithmildsoapywater,
thenwithafreshclothdampenedwithcleanwater.Wipedryimmediatelywith
a dry cloth. NEVER use abrasive cleaners or a volatile cleaning agent, such
as benzene, thinner, or alcohol. Avoid spraying insecticide, waxes, polishing
agents, or any aerosol product near the unit.
WARNING: To prevent shock hazard, always make sure to turn the Master
Power switches off when using liquid near the amplifier.
When You Are Away
If you will not be using your home theater system for an extended period of
time, it is always a good idea to turn the unit off using the Power Switch on
the rear panel of the amplifier.
Troubleshooting
Your Outlaw Multi-Channel Amplifier is designed for trouble free operation.
If you follow the instructions in this manual you should enjoy many years of
highqualitylisteningenjoyment.However,aswithanysophisticatedelectronic
device, there may be occasional problems upon initial installation, or during
the life of the unit. The items on this list are a brief guide to the minor prob-
lems that you may be able to correct yourself. If these solutions do not rectify
a problem, or if the problem persists, contact us for assistance.
Protection Circuitry
Your Outlaw Audio Amplifier uses advanced protection circuitry that does not
require fuses.Intheeventthattheamplifiersensesashortedspeakerwire, DC
voltage on an input connection or when thermal overload creates a condition
that could potentially cause damage to the unit or to your speakers, the Model
7900 will automatically shut down.
If this should happen, first check all speaker wire connections, both at the
speakers themselves and at the speaker terminals on the back of the Model
7900tomakecertainthatnoneofthestrandsfromanychanneltouchanother
channel, and that none of the strands from a “positive” terminal touch those
from a “negative” terminal. Even a few stray wire strands can cause the unit
togointotheprotectionmode.Also,checkthesystemtoensurethenegative(–)
speaker outputs are not connected together and are not connected to ground.
Nowturntheunitbackon.Ifitcontinuestoturnoff,checkyourspeakerstoverify
thattheyareoperatingproperly.Ifallotherpotentialsourcesoftroublecheckout
properly, contact Outlaw Audio for further assistance and information.
Outlaw Service Information
The Model 7900 does not contain any user serviceable parts. If you suspect a
problem that may require service assistance, contact us at customerservice@
outlawaudio.com, or by phone at 866-OUTLAWA (688-5292).
It is important that only an authorized service agent carry out any repairs.
This will assure proper service and preserve the protection of your Limited
Warranty. Keep your sales slip or receipt in a safe place with this manual so
that it will be available to verify the purchase date, should you experience a
problem covered by our warranty.
A Few Words About Hum and Noise
Audiblehum,oradiscernablelowfrequencynoise,isoneofthemostcommonprob-
lemsinaudio/videosystems.Hum,whichmaybepresentevenatlowvolumelevels
orwhenthepowerisoff,isusuallycausedbyaproblemknownas“groundloops”.
A ground loop occurs when there is a difference in ground voltages between two
ormorecomponentsthatareconnectedelectrically.This,inturn,createsmultiple
currentpathsand causesthelow-levelnoise,or hum.
Thegrowingsophisticationofhometheatersystems,andtheincreasednumber
of components used to create these systems has dramatically increased the
potential for the possibility of ground loops. While it is natural to suspect that
the components in your system are the cause of the hum, in many cases the
causemaybeduetootherconditions.Inparticular,cableTVconnectionsfrom
outside the house have become a major source of hum.
In most cases, one of the following suggestions should help you to solve a hum
probleminyoursystem.Pleasetrythesestepsinthesequenceshown,proceeding
from one step to the next if the prior suggestion does not eliminate the problem.
Amplifier Operation

9
Model 7900 7-Channel Power Amplifier
Owner’s Manual
Problem Solutions
Amplifier will not turn on Master Power Switches turned off (No power light LED):
Turn on both Master Power Switches.
Remote trigger cable not properly connected:
Verify connection of trigger cable at both ends.
Amplifier turns on, but no audio from Input plugs not connected to proper jack or are loose:
one or more channels Check input connections.
Speakers not connected properly:
Check speaker connections at amp and speaker.
One or both of the AC power cords are not receiving power:
Ensure both power cords have power. The amplifier is actually two power amplifiers in one–a
3ch amplifier and a 4ch amplifier. One cord powers the 3ch amp and the other cord powers
the 4-ch amp. Two power controllers are used so these operate independently. If one breaker
(on the unit) is tripped or if there is no power for one cord, a group of channels will be down.
Depending on which has power, either 3 channels will be lost or 4 channels will be lost. The
standby/on led will be dimmer than for normal operation, but this may not be readily noticed.
Audio levels differ Improper settings or output levels from the processor or controller:
Check the settings on your preamp, processor or controller.
Audio plays, then cuts off Amplifier shorted:
Check speaker connections for short circuit at amp and speaker.
Troubleshooting
60Hz AC
Ground Loop
60Hz AC
Ground Loop
AC Ground
AC Line
A/V
Cables
Main House
Grounding
Cable Feed Coax Cable
Ground Loop Diagram
AC Line
Set-top Box
Troubleshooting Guide

10
Outlaw Audio
Owner’s Manual
Model 7900 Specifications
Potential Ground Loops in a Complex A/V System
Suggestion #1: To determine if a cable TV connection is responsible for
the hum, first turn all components off. Disconnect the cable TV feed to your
system at the first place where it connects to your components. Alternatively,
disconnect the cable TV wire where it is connected at the wall outlet. Turn
your system back on, and check if the hum has disappeared. If removing
the cable TV feed has eliminated the hum, you will need to insert a Ground
Loop Isolator before reconnecting the cable TV feed, or contact your cable TV
operator to see if they can better isolate your cable feed.
Suggestion #2: Turn off all components in your system, then disconnect
the input cables at the amplifier. Turn the amplifier back on. If the hum
disappears, the fault may be in the input cables used. Try reconnecting each
cable separately to determine if one or more of them is responsible for the
hum. Replace any suspect cable. Make sure that the cables are not running
next to any AC power cords and are properly shielded. If the hum returns
after the cables are tested and/or changed and re-connected, the problem
may be caused by your processor, receiver or preamplifier.
Suggestion #3: Poor grounding of the electrical system in your home
may also cause ground loop problems, particularly when there are mul-
tiple components with three-prong, grounded power cords. Try unplugging
these components one at a time, and see if one or all of them is causing the
problem. The ultimate solution to this type of problem is to re-wire your
house with an isolated, star-type grounding configuration. We recognize,
however, that this may be impractical and expensive. In some cases, the use
of an approved AC Power Isolation Transformer of sufficient capacity may
solve this problem.
Warning: if you suspect that the grounding system in your home’s
electrical wiring is causing the hum problem, it is important that you do
not make any changes to the wiring yourself. Only a licensed electrician
should make any changes to household wiring, and they must be made
in full compliance with all local building, safety and electrical codes.
Suggestion #4: Faulty earth grounds may also cause hum in your home’s
electrical system. In the past, cold water pipes were often used for the earth
ground, so it is important to make sure that your ground connection is still
valid and has not become loose or corroded. The cold water pipe method
may no longer be valid in some locations due to requirements that the water
meter be isolated from the water mains with a length of PVC pipe, thus inter-
rupting the ground circuit. The safest, and most reliable approach may be
to provide your own ground. This can be accomplished by having a licensed
electrician drive at least five feet of copper-jacketed steel grounding rod into
the earth, and using that for your grounding connection.
Suggestion #5: If you have hum in your video display device (bars that
roll up through the image at 12-14 second intervals), it may be related to the
hum you are also experiencing in your audio system. The previous sugges-
tions may also help with this. If not, try isolating the ground in the display’s
video signal cable with a base-band video isolation transformer, such as the
Jensen VB-1BB.
If the hum persists after all of the above suggestions have been tried, contact
the Outlaw Audio customer service department for assistance.
Model 7900 Specifications
Power Output 7 x 300 watts @ 8 ohms, FTC: 20 - 20kHz,
0.05% THD, All Channels Driven
Frequency Response 20Hz -20kHz +/- 0.1dB at rated output
Total Harmonic Distortion (THD) Less than 0.05% at rated output,
all frequencies, less than 0.005% at 1 kHz
Intermodulation Distortion (IMD) Less than 0.03% from 250mV
to full rated FTC power
Power Bandwidth 5Hz - >100kHz +0/-3dB
Damping Factor Greater than 400 from 10Hz to 400Hz
Crosstalk Greater than -100dB from 20Hz to 20Khz
Gain (XLR and RCA) Voltage gain of 28dB
Slew Rate 50v/Microsecond
Input Impedance <10k ohms
Input Sensitivity 1.95 Volts for Full Rated Output
Remote Trigger Voltage 3 - 24 Volts DC at 5mA or greater
Dimensions (HxWxD): 9.5" x 17.2" x 19.5"
Weight 145 lbs
Power Requirements 2 x115VAC, +/- 3%, 60Hz
1440 watts x 2 = 2880 watts maximum

11
Model 7900 7-Channel Power Amplifier
Owner’s Manual
Outlaw Audio Limited Warranty
The Outlaw Audio 30-Day Satisfaction Guarantee
This product is guaranteed to satisfy all your needs for a high performance
power amplifier. If for any reason, you are not completely satisfied with it,
please contact us at 866-OUTLAWS (688-5297) within 30 days of receipt of
the unit and you will receive a return authorization.
Please save all of your packing material since the amplifier is heavy and can
get damaged in shipping without proper protection. We recommend that you
keep the packing (even after 30 days) so that if you ever move, the unit will
be adequately protected.
If you decide to return the amplifier, the only cost you will be responsible for
is the shipping charge to return it to us. When your amplifier arrives, we will
inspect it to insure that it was shipped back to us in original condition. Upon
satisfactory inspection, we will issue a full credit for your original purchase
price plus your original outbound freight cost.
Outlaw Audio Limited Warranty
ThiswarrantyprotectstheowneroftheOutlawModel7900PowerAmpli-
fier (the PRODUCT) for five (5) years from the date of purchase.
This warranty covers all defects in material and workmanship with the
following specific exceptions. These are:
■Damage caused by improper installation or adjustment
■Damage caused by accident, unreasonable use or neglect
■Damage from failure to follow instructions contained in this
Owner’s Manual
■Damage from the performance of repairs by someone not autho-
rized by Outlaw Audio
■Any unit on which the serial number has been effaced, modified,
or removed
■Damage occurring during shipment
■Units that have been altered or modified in design, appearance
or construction
This warranty covers only the actual defects within the PRODUCT itself.
IT DOES NOT cover costs of installation in (or removal from) a fixed
installation,ornormalset-up,claimsbased onanymisrepresentationby
the seller, or performance variations resulting from installation related
circumstances such as signal quality, AC power or incompatibilities with
speakers and/or other system components.
Duringthewarrantyperiod,OutlawAudiowill,atitsoption,eitherrepair
thedefect,orreplace the defectiveproduct, orthedefectiveparts, orcom-
ponents thereof at no charge to the owner for parts and labor covered by
this warranty. If necessary repairs are not covered by this warranty, or if
aunitisexamined whichis notinneed ofrepair, youwill becharged for
therepairsand/ortheexamination.Ifnon-warrantedrepairsareneeded,
we will notify you of the estimated cost and ask for your authorization to
perform said repairs.
You must pay shipping charges incurred in getting your Product to the
factory.Wewill paythereturn shippingcharges iftherepairs are covered
by the warranty. Please save the original shipping cartons as the unit
MUST be returned in the original carton and packing.
(Replacement cartons are available at a modest charge.)
If yourproduct needs service,please call OutlawAudio at 866-OUTLAWS
(688-5297) or 866-OUTLAWA (688-5292).
You will need to present the original bill of sale to establish the date of
purchase. In the event that the proof of purchase cannot be established
with the original receipt, the warranty period shall be determined by the
earliest date of manufacture shown on the unit, provided that the serial
number label has not been altered in any manner, or by our records
relating to that serial number.
In theeventthatyouwishtoreturn yourOutlawamplifierbacktous,for
any reason, please call to arrange for a Return Authorization Number.
This will insure that your problem is discussed with a service technician
who will determine if there is a quick solution to your problem.
Outlaw Audio shall not be liable for, in any way responsible for, any
incidental or consequential damages of any kind. Some states do not
allow limitations on how long an implied warranty lasts and/or do not
allow the exclusion of incidental or consequential damages; therefore,
the limitations and exclusions stated herein may not apply to you. This
warranty gives you specific legal rights; and you may also have other
rights that vary from state to state.
THERE ARE NO WARRANTIES GIVEN BY OUTLAW AUDIO WHICH
EXTEND BEYOND THE DESCRIPTION GIVEN HEREIN. ANY IMPLIED
WARRANTIESOFFITNESSFORPURPOSESOLD,MERCHANTIABILITY,
DESCRIPTION, QUALITY OR ANY OTHER MATTERS ARE LIMITED
TO THE TERMS OF THE EXPRESSED LIMITED WARRANTY STATED
HEREIN.
Products are sold on the basis of specifications applicable at the time of
sales. Outlaw Audio shall have no obligation to modify products once
they have been sold.
This warranty is applicable only in the United States.
For applicability in other countries, please call Outlaw Audio.