Outlaw 750 User manual
Outlaw Audio Inc., 18 Denbow Road
Durham, NH 03824
Tel. (800) 392-1393, Fax (603) 868-6634
www.outlawaudio.com
Outlaw Model 750 Power Amplifier
Owner’s Manual
The Outlaw Model 750 Instruction Manual
2
Congratulations!
As the owner of an Outlaw Model 750 Five-Channel Power Amplifier, you are in possession of a
unique product. Designed and manufactured in the United States, the Outlaw 750 has been
carefully designed to deliver the best possible sonic performance. We welcome you as a
member of our Outlaw band, and hope that your new Outlaw 750 will bring 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 a few minutes
to read this manual. This important information will help you to 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.
If you have any questions about this amplifier, its installation or operation, please contact us via
Contents Copyright 1999, Outlaw Audio, Inc. All Rights Reserved
The Outlaw Model 750 Instruction Manual 3
Outlaw Model 750 Design Description:
The Outlaw 750 is a state of the art, high performance, audio power amplifier. It is built utilizing
totally complementary circuitry from input to output. The high current power supply is driven by a
custom designed 1.5 KVA torrodial transformer with two separate windings for each of the five
channels. Each output model has 6 discrete output devices, 20,000 uF total filter capacitance
and is protected by an advanced Opto-coupled protection circuit. Heat management is provided
not by noisy fans but by five custom designed heatsinks with over 400 square inchs of surface
area each.
The Outlaw Model 750 Instruction Manual
4
Unpacking The Outlaw Model 750:
The carton and packing materials used in shipping your new amplifier were specially designed
to cushion it from the shocks and vibration of shipping. We strongly suggest that you save the
carton and packing materials to use if you move, or if the unit ever needs to be shipped back to
us for any reason.
To minimize the size of the carton in storage, you may wish to flatten it by carefully opening the
top and bottom flaps and folding the carton flat. Other cardboard 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.
The Outlaw 750 has been engineered using heavy duty materials for high reliability and weighs
73 pounds. This substantial weight requires that you pay special attention to unpacking and
installation of the unit. You may wish to have someone help you remove the unit from its carton
and place it in the proper location.
Before You Install Your Outlaw Model 750:
• Verify The Line Voltage
Your new Outlaw 750 amplifier has been factory configured for 120 (+/- 3%) volt AC lines.
Connecting the amplifier to a line voltage other than that for which it is intended can create a
safety and fire hazard, and may damage the amplifier. If you have any questions 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 amplifier may require heavy power draw under full load
conditions. To insure proper performance, and to avoid potential safety hazards, we recommend
that it be connected to a minimum 20 Amp capacity circuit. Connecting multiple amplifiers to the
same circuit, or connecting it to a circuit used by other heavy power devices, such as air
conditioners, may cause circuit 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 affecting your sound system.
The Outlaw Model 750 Instruction Manual 5
Outlaw Model 750 Physical Installation:
• Installation Location
To assure proper operation and to avoid the potential for safety hazards, place the unit on a firm
and level surface capable of supporting 100 pounds or more. When placing the amplifier on a
shelf, be certain that the shelf and any mounting hardware can support the weight of 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
two or three inches of room above the amplifier for air circulation. DO NOT place CDs, DVDs,
videotapes, owner’s manuals, or other paper on top of, or beneath, the unit, or in-between
multiple amplifiers in a stack. This will block air flow, causing heat build-up, degraded
performance, and creating a possible fire hazard.
If the unit is to be enclosed in a cabinet or rack, make certain that there is adequate air
circulation. Sufficient ventilation should be provided so that hot air may exit, and cool air may
enter the cabinet. In some instances, a small cooling fan may be required. If you are in doubt as
to the ventilation requirements for your specific installation, please contact us. Also, do not place
the amplifier directly on a carpeted surface as this will inhibit air flow underneath.
Avoid installation in humid locations, in extremely hot or cold locations, or in areas that are
exposed to direct sunlight or space heating equipment.
• Extension Cords
We do not recommend that extension cords be used with this product unless they are of
sufficient gauge to pass the necessary current during full load conditions. Most inexpensive
extension cords are not capable of such high-current loads.
• Handle the AC Power Cord Gently
When disconnecting the power cord 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 the power cord is replaced, make certain that it is of similar gauge.
As with all electrical devices, do not run power cords under rugs or carpets or place heavy
objects on them. Damaged power cords should be replaced immediately by Outlaw Audio or an
authorized service technician with cords meeting factory specifications.
• 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.
The Outlaw Model 750 Instruction Manual
6
Outlaw Model 750 Rear Panel Connections:
• Audio Input Connections: Connect the outputs of your surround processor, preamp, the pre-
out connections on an AV receiver, the discrete five channel outputs of a DVD player or HDTV
product with a built-in surround decoder to these input jacks.
• Remote Trigger Input: This is the input jack for remote turn-on control of the Outlaw 750.
Connect it to a compatible trigger output from a processor or other product that has an output of
3-32 VDC.
• Speaker Connection Binding Posts: Connect the wire that will run to your speakers to these
binding posts. See pages 8-9 for information on connecting speaker wire to the terminals.
• Power Cord: Connect the AC power cord to an AC power source only after all other system
connections have been completed.
DESIGNED, ENGINEERED AND MANUFACTURED
IN THE UNITED STATES OF AMERICA
ATTENTION: VOIR LE CAHIER D'
INSTRUCTION DEBRANCHER AVANT DE
REMPLACER LE FUSIBLE
UTILISER UN FUSIBLE DE
RECHANGE DE MEME TYPE
CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD USE ONLYSAME TYPE AND RATING FUSE
DISCONNECT SUPPLYCORD BEFORE CHANGING FUSE
15A 125V 3AB
125 VAC / 60Hz
1800W
AC FUSE
REMOTE TRIGGER
(POWER ON/OFF)
12V DC
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN !
AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
OUTLAW
AUDIO
DURHAM
NEW HAMPSHIRE
U.S.A.
serial number
INPUT
SURROUND RIGHT
OUTPUT
+
-
INPUT
SURROUND LEFT
OUTPUT
+
-
INPUT
FRONT RIGHT
OUTPUT
+
-
INPUT
CENTER
OUTPUT
+
-
INPUT
FRONT LEFT
OUTPUT
+
-
ATTENTION:
ATTENTION:
WARNING:
HAZARDOUS ENERGY, MAKE PROPER SPEAKER
CONNECTIONS: SEE OWNER'S MANUAL BEFORE USING
Line Level
Audio In
Speaker Binding
Posts AC Power Cord
Remote Trigger
Input
CAUTION: Do not plug the Outlaw 750 directly into the “Switched Accessory” outlet
of another device! These outlets are intended for use with low current draw products
having a low current draw, such as tuners, CD players or cassette decks. These
cannot handle the high current draw of a power amplifier. Using these outlets for
a power amplifier is a significant safety hazard.
The Outlaw Model 750 Instruction Manual 7
Outlaw Model 750 Power Control Connections:
The Outlaw 750 features a built-in remote turn-on system that will automatically switch the
amplifier when another device in the system is switched on.
• Remote Turn-On Using Products Equipped With a 12 Volt Trigger Jack - Press the front
panel power switch on the Outlaw 750 so that it is in the ON position. 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 Outlaw 750. When these
connections are made, the 750 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 6 to 12 volt
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, or may be
obtained at Radio Shack stores as catalog number 273-11454.
When installing, press the Main Power Switch on the front panel of the Outlaw 750 in so that it
is in the ON position. Plug the AC adapter into a switched outlet that will be activated when you
wish to have the amplifier turn on. This may be the switched outlet at the rear of an AC receiver
or other audio equipment. Connect the 3.5mm mini-plug from the adapter to the trigger-input
jack on the back panel of the Model 750. The Outlaw 750 will now turn on and off automatically,
based on the status of the controlling device.
Outlaw Model 750 Signal Input Connections
When making connections between any source components and the Outlaw 750, or when
making connections to any speakers, be certain that both the input devices and the amplifier are
turned off. To assure that there will be no unwanted signal transients that can damage
equipment or speakers, it is always best to unplug all equipment before making any
connections. Modern electronic products often have a standby mode that may be activated even
though the product may appear to be turned off.
Connecting the Outlaw 750 to your source equipment is simple. Using high-quality audio
interconnect cables, match the output channel designations on the rear of your processor (or
other source equipment) to the input jacks on the Outlaw 750 that have the same channel name
(right to right, center to center, etc.). When making connections with RCA type plugs on
interconnect cables, make certain to gently, but firmly insert the plug into the jack on the back of
the Outlaw 750. Loose connections can cause intermittent sound and may damage your
speakers. The barrel assembly of some high quality RCA plugs may be very tight, and it is
important to assure a proper connection between the interconnection cable and the input jack.
The Outlaw Model 750 Instruction Manual
8
Outlaw Model 750 Speaker Connections
• Wires and Cables
To assure that the high quality signals produced by your Outlaw amplifier are carried to your
speakers without loss of clarity or resolution, we recommend that you use high quality speaker
wire. Many brands of wire are available, and the choice may be influenced by the distance
between your speakers and the amplifier, the type of speakers you use, personal preferences,
or other factors.
Regardless of the brand or type of speaker wire selected, we recommend that you use a wire
constructed of fine, multi-strand copper with a gauge of 14 or less. Remember that in specifying
wire, the lower the number, the thicker the cable. Wire with a gauge of 16 may be used for short
runs of less than ten feet. We do not recommend that you use any wires with an AWG
equivalent of 18 or higher due to the power loss and degradation in performance that will occur.
Cables that are run inside of walls should have the appropriate markings in indicate safety listing
with UL, CSA or other testing agency standards. Questions about cables inside of walls should
be referred a licensed electrical contractor who is familiar with the NEC and/or the applicable
local building codes in your area.
• Connecting the Speakers
The final step of the installation process is to connect the amplifier to your speakers, using high
quality wire, as described above. A pair of binding posts is provided for each channel output.
These posts will accept bare wire, spade lugs or banana type plugs, when they are permitted by
local safety agencies.
If bare wire is used for the connections, strip approximately 1/2 inch to 3/4 inch (20mm) of
insulation from the end of each wire and carefully twist the strands of each conductor together.
Be careful not to cut the individual strands or twist them off; for optimal performance, all strands
must be used.
Correct polarity connections are important to maintain proper speaker phasing. When speaker
phasing is correct, all speakers move in and out at the same time, preserving the imaging of the
program material. Out-of-phase connections mean that some speaker cones will be moving in,
while others move out. This will cause indistinct or confused imaging, and muddled and cloudy
sounds. To avoid incorrect phasing or polarity, be certain to use cable that has distinct markings,
colors, stripes, wording, or grooves on each side of the speaker cable. 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, traditional convention is to consider the marked side of the wire as
red, or positive (+) connection, and the non-marked side as the black or negative (-) connection.
The Outlaw Model 750 Instruction Manual 9
DESIGNED, ENGINEERED AND MANUFACTURED
IN THE UNITED STATES OF AMERICA
ATTENTION: VOIR LE CAHIER D'
INSTRUCTION DEBRANCHER AVANT DE
REMPLACER LE FUSIBLE
UTILISER UN FUSIBLE DE
RECHANGE DE MEME TYPE
CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD USE ONLY SAME TYPEAND RATING FUSE
DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE
15A 125V 3AB
125 VAC / 60Hz
1800W
AC FUSE
REMOTE TRIGGER
(POWER ON/OFF)
12V DC
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN !
AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
OUTLAW
AUDIO
DURHAM
NEW HAMPSHIRE
U.S.A.
serial number
INPUT
OUTPUT
+
-
INPUT
SURROUND LEFT
OUTPUT
+
-
INPUT
OUTPUT
+
-
INPUT
CENTER
OUTPUT
+
-
INPUT
FRONT LEFT
OUTPUT
+
-
ATTENTION:
ATTENTION:
WARNING:
HAZARDOUS ENERGY, MAKE PROPER SPEAKER
CONNECTIONS: SEE OWNER'S MANUAL BEFORE USING
SURROUND RIGHT
SURROUND LEFT FRONT RIGHT
CENTER
FRONT LEFT
Outputs
From
Preamplifier
RCA
Audio
Cables
Inputs To
Amplifier
Speaker
Level
Outputs
Speaker
Wires
Right Rear
Surround
Speaker
Left Rear
Surround
Speaker
Right Front
Speaker
Center
Speaker
Left Front
Speaker
Speaker
System
SURROUND RIGHT
FRONT RIGHT
Outlaw Model 750 System Connections
The Outlaw Model 750 Instruction Manual
10
Next, loosen the knobs of the amplifier’s speaker output terminals, far enough so that the pass-
through hole is revealed. Note that one conductor of the speaker cable should have no
markings, and the other should have a red line, brand name markings, a colored thread, or
some other positive indication. Follow the proper connection instructions for your system with
regard to which terminals are used. Once the connections are made, twist the cap back so that
the connection is secured, but do not over tighten or use tools, as this may break the delicate
wire strands and decrease system performance.
If you are using spade lugs, connect them to the speaker wire using the manufacturer’s
instructions, then loosen the caps on the speaker terminals. 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.
When using banana plugs, connections may be made by simply inserting the jack affixed to
your speaker wire into the hole provided on the rear of the colored screw caps on the binding
posts. Before using banana type jacks make certain that the plastic screw caps are firmly
tightened down by turning them in a counter clockwise direction until they are snug against the
chassis. This will insure that the maximum surface area of the plug is in contact with the jack.
Be certain to observe proper polarity.
Run the cables to the speaker locations. It is recommended that the length of wire connecting
any pair of speakers be similar. For example, make certain that the wire length connecting the
left and right front, or the left and right rear (surround) speakers are similar in length, even
though one speaker may be physically closer to the amplifier than the other. Do not coil any
excess cable, as this may become an inductor that creates frequency response variations in
your system.
Finally, connect the wires to the speakers, again being certain to observe proper 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 convention 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.
The Outlaw Model 750 Instruction Manual 11
• Loudspeaker Ratings
The Outlaw 750 has adequate power to drive most loudspeakers without producing any
distortion. Most modern speakers are rated at four to eight ohms nominal impedance, but within
some frequency ranges, the impedance may drop to two ohms. The Outlaw 750 is designed
with ample power reserves to protect you from experiencing any problems at these low
impeadances unless you demand excessively high volume levels.
Due to the high power output capability of the Outlaw 750, it is important that the amplifier not
be used with speakers not capable of handling the 750’s power output. Before using the Outlaw
750 for the first time, make certain that your speakers are capable of handling the rated power
output of the 750, 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.
Outlaw Model 750 Operation:
Operation of the Outlaw 750 is simple. There are no controls to adjust once the installation is
complete. After all connections have been made to the amplifier’s inputs, and speaker terminals
have been made, just connect the power cord to an AC socket.
NOTE: It is not recommended that you connect other power amplifiers or products with a high
current draw, to the same AC power circuit as the Outlaw 750, unless they are used with the
remote power turn on and sequencing system. The simultaneous turn-on of multiple amplifiers
on the same circuit may cause circuit breakers to trip, due to the high current draw.
Now you are ready for listening: First, turn on the source components and processor in your
system. It is always a good idea to turn on your Model 750 LAST. This avoids the possibility of
any turn on pops or transients from other equipment being amplified and sent to your speakers
where they may cause damage. Always start with a low volume level on your controller or
preamp to avoid damage to your speakers.
• For manual turn-on: Simply press in the front panel power switch until the light is illuminated.
There will be a short pause from the time the power is turned on until power is applied to the
speakers. This is intentional, and it protects your speakers from damage while the amplifier
stabilizes. You may also hear a relay click during start up. This is also normal.
All volume and level adjustments are made at your preamp, controller or surround processor. To
turn the unit off, switch the rear panel master power switch to the off position.
• For automatic turn-on: Make certain that the connection to the processor, or other controlling
device is correct, as described on page 7. Whenever the controlling device is turned on, the
Outlaw 750 will automatically turn on after a short pause. This pause is intentional, and it
protects your speakers from damage while the amplifier stabilizes. You may also hear a relay
click as during start up. This is also normal.
The Outlaw Model 750 Instruction Manual
12
To assure proper sound field imaging, it is always a good idea to re-set the output levels of the
channels on your processor when using the Outlaw 750 for the first time. The circuitry in the 750
may be different from your previous amplifier, and by checking the output levels you will make
certain that the processor, amplifier and speakers are properly matched.
To turn off your amplifier, simply turn off the unit that feeds the amplifier it’s audio signals. The
amplifier will automatically go into a stand by mode in a few moments.
• Cleaning The Surface of the Model 750
When the unit becomes dirty, wipe it with a clean, soft, dry cloth. If necessary, first wipe the
surface with a soft cloth slightly dampened with mild soapy water, then with a fresh cloth
dampened with clean water. Wipe dry immediately with a dry cloth. NEVER use benzene,
thinner, alcohol or any other volatile cleaning agent. Do not use abrasive cleaners, as they may
damage the finish of the metal parts. Avoid spraying insecticide, waxes, polishing agents, or any
aerosol product near the unit.
• 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. This will prevent the automatic turn on
circuits from accidentally turning the system on during your absence.
Outlaw Model 750 Service Information:
If you follow the instructions in this manual you should enjoy many years of trouble free
operation and, of course, high quality listening enjoyment. The Outlaw 750 does not contain any
user serviceable parts. If you suspect a problem that may require service assistance, contact us
It is important that any repairs be carried out only by a service agent that we authorize. 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 expereince a problem covered by our warranty.
• Main Amplifier Fuse
The Outlaw 750 uses internal fuses to protect both the amplifier and your speakers from
damage. In the event that a fuse replacement is required, be certain that a fuse of the original
rating is used. If a fuse continues to fail, your unit may have developed a fault. In this event,
please contact us for assistance.
Warning: Always turn the amplifier off and remove the power cord from the source of AC Power
before replacing the fuse.
The Outlaw Model 750 Instruction Manual 13
• Protection Mode
Under some conditions, such as a shorted speaker wire, DC voltage on an input connection or
thermal overload, the Outlaw 750 will place itself in a protect mode to prevent damage to the
amplifier. When this happens the amplifier will mute to protect both the amplifier and speakers
from damage. Should this occur, IMMEDIATELY turn the unit off, using the Power Switch, and
disconnect the AC power cord. Examine all speaker connections to make certain that there are
no shorts. Turn the unit back on. If the unit continues to go into the protect mode, contact us for
assistance.
Outlaw Model 750 Troubleshooting Hints:
The Outlaw 750 is designed for trouble free operation. However, as with any sophisticated
electronic 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 problems 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.
PROBLEM / CAUSE / TROUBLESHOOTING HINT
Amplifier will not turn on / Master Power Switch turned off (No power light LED) /
Turn on Master Power Switch
Amplifier will not turn on / Remote trigger cable not properly connected /
Verify connection of trigger cable at both ends
Amplifier turns on, but no audio from one or more channels /
Input plugs not connected to proper jack or are loose / Check input connections
No audio from one or more channels / Speakers not connected properly /
Check speaker connections at amp and speaker
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
The Outlaw Model 750 Instruction Manual
14
• A Few Words About Hum and Noise
Audible hum, or a discernable low frequency noise, is one of the most common problems in
audio/video systems. This hum, which may be present even when the volume is at a low level or
when the power is off, is usually caused by a problem known as “ground loops”. A ground loop
occurs when there is a difference in ground voltages between two or more components that are
connected electrically. This, in turn, creates multiple current paths and causes the low-level
noise, or hum.
The growing sophistication of home theater systems, and the increased number 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 cause may be due to other conditions. In particular, cable TV
connections from 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 problem in your
system. Please try these steps in the sequence shown, proceeding from one step to the next if
the prior suggestion does not eliminate the problem.
VIDEO PROJECTOR
6:54 PM
04
CABLE BOX
VCR
A/V PRE/PRO
A/V CABLES
COAX (RF)
TO VCR
VIDEO SIGNAL
TO
PROJECTOR
CABLE
IN AC
POWER
IN
OUTLET FOR
PROJECTOR
OUTLET FOR
A/V EQUIPENT
CABLE
GROUNDING
BLOCK INSIDE
HOUSE
MAIN
HOUSE AC
GROUNDING
POINT
60Hz AC
Ground Loop
HOUSE AC GROUNDHOUSE AC GROUND
AC
POWER
IN
CABLE
FEED FROM
TELEPHONE
POLE
60Hz AC
Ground Loop
}
}
}
Located typically in an A/V rack
in the home theater room
Located typically in a basement
or other area in the house Located typically in the center
of the home theater room
POWER AMP
POTENTIAL GROUND LOOPS IN A COMPLEX A/V SYSTEM
The Outlaw Model 750 Instruction Manual 15
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 listen if the hum has disappeared. If removing
the cable TV feed has eliminated the hum, you will need to insert a Ground Loop Isolator (see
the Jensen VR-1FF below) 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, and then disconnect the input cables
at the amplifier. Turn the amplifier back on, and see if the hum is still present. If the hum
disappears, the fault may be in the input cables used. Try replacing them with cables that have
better shielding, and make certain that the input cables are not running on top of any AC power
cords. Change the cables one at a time to determine if one, or all cables is responsive. If the
hum disappears when the input cables are disconnected, but returns after the cables are
changed and the system re-connected, the problem may be caused by your processor, receiver
or preamplifier.
Suggestion #3: Ground loop problems may also be caused by poor grounding of the electrical
system in your home, particularly when there are multiple 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.
RF and Video Isolation Transformers From
Jensen Transformers. Call Outlaw Audio
for availability.
Iso-Max
VR-1FF Iso-Max
VB-1BB
The Outlaw Model 750 Instruction Manual
16
Suggestion #4: Hum may also be caused by faulty earth grounds 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 interrupting 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 image at
12-14 second intervals), this may be related to hum you also experience in your audio system.
The previous suggestion tips may help with this also. If not, try isolating the ground in the
projectors 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.
The Outlaw Model 750 30 Day Satisfaction Guarantee
The Outlaw Model 750 is guaranteed to satisfy all your needs for a high performance power
amplifier. If for any reason, you are not completely satisfied with the model 750, please contact
us at 800-392-1393 within 30 days of receipt of the unit and you will receive a return
authorization.
Please save all of your packing material in that the amplifier is heavy and can get damamged 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 Model 750, 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 satis factory inspection, we will issue a full credit
for your original purchase price of $1099 plus the original $55 that you paid for freight.
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.
The Outlaw Model 750 Instruction Manual 17
Outlaw Model 750 Specifications:
Power Output: 5 x 165 watts @ 8 ohms, FTC: 20 - 20kHz,
0.05% THD, All Channels Driven, 5 x 250 watts @ 4 ohms,
FTC: 20 - 20kHz, 0.05% THD, All Channels Driven
Frequency Response: 20Hz. -20kHz. +/- 0.1 dB 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 (THD): Less than 0.05% at rated output, all
frequencies, less than 0.005% at 1 kHz.
Power Bandwidth: 5Hz - >100 kHz +0/-3 dB
Damping Factor: Greater than 1,000 from 10 Hz to 400 Hz
Crosstalk: Greater than 90 dB from 20 Hz to 20KHz
Gain: Voltage gain of 28dB.
Slew Rate: 50v/Microsecond
Input Impedance: Nominal 28k ohms
Input Sensitivity: 1.2 Volts for Full Rated Output
Remote Trigger Voltage: 3 - 32 Volts DC at 5 milliamperes or greater
Dimensions: (HxWxD): 7.75” x 17” x 14”
Weight: 73 lbs
Power Requirements: 115VAC, +/- 3%, 50Hz - 60 Hz. 1800 watts, maximum
The Outlaw Model 750 Instruction Manual
18
Outlaw Model 750 Limited Warranty
This warranty protects the owner of the Outlaw 750 Power Amplifier (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 authorized by Outlaw Audio
• Any unit on which the serial number has been effaced, modified, or removed
• Damage occurring during shipment
• Units which 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, or normal set-up, claims
based on any misrepresentation by 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.
During the warranty period, Outlaw Audio will, at its option, either repair the defect, or
replace the defective product, or the defective parts, or components 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 a unit is examined which is not in need of repair, you will be charged
for the repairs and/or the examination. If non-warranted repairs are needed, we will notofy
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. We will pay
the return shipping charges if the repairs 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.)
The Outlaw Model 750 Instruction Manual 19
If your product needs service, please notify us at:
Outlaw Audio Inc.
18 Denbow Road
Durham, NH 03824
Tel. (603) 868-5557
Fax (603) 868-6634
ATTN: Service Department
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 the event that you wish to return your Outlaw Model 750 amplifier back to us, 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 which vary from
state to state.
THERE ARE NO WARRANTIES GIVEN BY OUTLAW AUDIO WHICH EXTEND BEYOND
THE DESCRIPTION GIVEN HEREIN. ANY IMPLIED WARRANTIES OF FITNESS FOR
PURPOSE SOLD, 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, Inc.
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