Directed Electronics ORION 8004 User Manual

INTRODUCTION  
Thank you for your purchase of Orion's 8004 amplifier. Each Orion amplifier is designed to  
be the leader in its class offering the most power, advanced features, and ease of use. Orion  
amplifiers are designed as the best affordable high end car audio amplifier money can buy.  
Listed below are the features of the new Orion 8004.  
8004 - 100 Watts per channel, four-channel amplifier with dual built-in fully vari-  
able high-pass, low-pass, and band-pass 12dB/octave crossovers with INTELLi Bass.  
The 8004 is capable of six, five, four, three, or two channel operation with a max-  
imum power capability of 800 Watts into 4W stereo (front and rear channels  
bridged).  
The installation of all Orion amplifiers will determine the overall performance result.  
Improper installation will not only limit the performance of your Orion system, but also  
potentially compromise the reliability of the amplifier. To ensure proper sonic results and  
component reliability, please refer to your authorized Orion dealer for installation assis-  
tance or advice. If you decide to perform the installation yourself, be sure to read the entire  
manual before beginning the installation.  
What’s in the Box  
(1) Amplifier  
(1) Extra Fuse  
(1) Allen wrench 2.5mm  
(1) Allen wrench 3mm  
(4) #8 self-tapping black Phillips head pan head screws  
(1) Amplifier installation and operation manual  
PRACTICE SAFE SOUND™  
Continuous exposure to sound pressure levels over 100dB may cause permanent hearing  
loss. High power automotive sound systems can generate sound pressure levels in excess of  
130dB. When playing your system at high levels, please use hearing protection and avoid  
long term exposure.  
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©2003 Directed Electronics, Inc.  
WARRANTY  
Directed Electronics, Inc. promises to the original purchaser, to replace this product should  
it prove to be defective in workmanship or material under normal use, for a period of two  
years from the date of purchase by the dealer as indicated by the date code marking of the  
product PROVIDED the product was installed by an authorized Directed dealer. During this  
two year period, there will be no charge for this replacement PROVIDED the unit is  
returned to Directed, shipping pre-paid. If the unit was installed by anyone other than an  
authorized Directed dealer, the warranty period will be 1 year from date of purchase by the  
dealer as indicated by the date code marking of the product. During this 1 year period,  
there will be no charge for this replacement PROVIDED the unit is returned to Directed,  
shipping pre-paid. This warranty is non-transferable and does not apply to any unit that has  
been modified or used in a manner contrary to its intended purpose, and does not cover  
damage to the unit caused by installation or removal of the unit. This warranty is void if the  
product has been damaged by accident or unreasonable use, neglect, improper service or  
other causes not arising out of defects in materials or construction. ALL WARRANTIES  
INCLUDING BUT NOT LIMITED TO EXPRESS WARRANTY, IMPLIED WARRANTY, WAR-  
RANTY OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, AND WARRANTY  
OF NON-INFRINGEMENT OF INTELLECTUAL PROPERTY ARE EXPRESSLY EXCLUDED TO  
THE MAXIMUM EXTENT ALLOWED BY LAW, AND DIRECTED NEITHER ASSUMES NOR  
AUTHORIZES ANY PERSON TO ASSUME FOR IT ANY LIABILITY IN CONNECTION WITH  
THE SALE OF THE PRODUCT. DIRECTED HAS ABSOLUTELY NO LIABILITY FOR ANY AND  
ALL ACTS OF THIRD PARTIES INCLUDING ITS AUTHORIZED DEALERS OR INSTALLERS.  
Unit must be returned to Directed, postage pre-paid, with: consumer's name, telephone  
number, and address, authorized dealer's name and address, and product description. IN  
ORDER FOR THIS WARRANTY TO BE VALID, YOUR UNIT MUST BE SHIPPED WITH  
PROOF OF INSTALLATION BY AN AUTHORIZED DIRECTED DEALER. ALL UNITS  
RECEIVED BY DIRECTED FOR WARRANTY REPAIR WITHOUT PROOF OF DIRECTED  
DEALER INSTALLATION WILL BE COVERED BY THE LIMITED 1 YEAR PARTS AND  
LABOR WARRANTY. BY PURCHASING THIS PRODUCT, THE CONSUMER AGREES AND  
CONSENTS THAT ALL DISPUTES BETWEEN THE CONSUMER AND DIRECTED SHALL BE  
RESOLVED IN ACCORDANCE WITH CALIFORNIA LAWS IN SAN DIEGO COUNTY, CALI-  
FORNIA.  
NOTE:  
This warranty does not cover labor costs for the removal and reinstallation of the  
unit.  
Record Your Serial Number and Date  
Model:  
__________________________________________________  
Serial Number:  
__________________________________________________  
Date of Purchase: __________________________________________________  
Purchased from: __________________________________________________  
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©2003 Directed Electronics, Inc.  
SPECIFICATIONS  
Amplifier Section  
Power Output 4W Stereo (Watts)1  
Power Output 2W Stereo (Watts)2  
Power Output 4W Mono (Watts)1  
100 x 4  
200 x 4  
400 x 2  
Distortion - with all channels driven  
at rated power (20Hz to 20kHz)  
< 0.1% THD+N  
Frequency Response  
Linear Bandwidth  
Signal-to-Noise Ratio at Rated Power  
Damping Factor  
Slew Rate  
20Hz to 20kHz 0.25dB  
10Hz to 50kHz 3dB  
> 100dB  
> 200  
> 20V per usec  
200mV to 5V  
40kW  
RCA Input Sensitivity  
Input Impedance  
Fuse Type  
(1) 80 Amp MAXI  
23.9" x 10.5" x 2.3"  
10 lbs.  
Dimensions  
Weight  
Crossover Section  
Low Pass Crossover  
2nd Order  
(12dB per octave)  
Low Pass Frequency Range  
High Pass Filter  
20Hz to 3kHz  
2nd Order  
(12dB per octave)  
High Pass Frequency Range  
INTELLi Bass  
20Hz to 3kHz  
10dB boost  
1. All channels driven, continuous 4W load 20Hz to 20kHz, < 0.05% THD, with input voltage  
at 13.8VDC.  
2. All channels driven, continuous 2W load 20Hz to 20kHz, < 0.1% THD, with input voltage at  
13.8VDC.  
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©2003 Directed Electronics, Inc.  
END PANEL LAYOUT  
1. Power LED - when lit indicates that the amplifier is on.  
2. Front Low-Pass Crossover Switch - activates 2nd order low-pass crossover.  
3. Front Low-Pass Frequency Control - adjusts the frequency of the low-pass  
crossover.  
4. Front Gain Control - continuously adjusts from 200mV to 5V for full power output.  
5. Front High-Pass Crossover Switch - activates 2nd order high-pass crossover.  
6. Front High-Pass Frequency Control - adjusts the frequency of the high-pass  
crossover.  
7. Front RCA Inputs - accepts RCA input from a source unit, preamplifier, or equalizer.  
8. Rear RCA Inputs - accepts RCA input from a source unit, preamplifier, or equalizer.  
9. RCA Outputs - provides easy connection to additional amplifiers.  
10. Rear Gain Control - continuously adjusts from 200mV to 5V for full power output.  
11. Copy/Master Switch - determines the output of the RCA outputs.  
12. Rear Low-Pass Crossover Switch - activates 2nd order low-pass crossover.  
13. Rear Low-Pass Frequency Control - adjusts the frequency of the low-pass  
crossover.  
14. 4CH / 2 CH Switch - configures the amplifier for one or two sets of inputs.  
15. Rear High-Pass Crossover Switch - activates 2nd order high pass crossover.  
16. Rear High-Pass Frequency Control - adjusts the frequency of the high-pass  
crossover.  
17. INTELLi Bass Control - continuously adjusts from 0 to 10dB of boost on the rear  
channels.  
18. Speaker Connections - allow up to 12 gauge speaker wire.  
19. 1 x 80A MAXI Fuse - protect the amplifier from over current situations.  
20. REM Remote Turn-on Input - turns on the amplifier when fed 12 V+.  
21. Power Connections - allow greater than eight-gauge power and ground cables.  
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©2003 Directed Electronics, Inc.  
AMPLIFIER SETTINGS  
Signal Input and Output Configurations  
The input section of the amplifier consists of a phase switch that sets the output configura-  
tion, gain controls, and RCA inputs. The input section makes it easy to adapt this amplifier  
to most system configurations.  
Four-Channel Amplifier Input Configuration  
The 4CH / 2CH switch routes input from the front inputs to the rear section of the amplifi-  
er. This allows the Orion 8004 channel amplifier to utilize a single set of RCA's to feed sig-  
nal to the front and rear channels of the amplifier.  
When the switch is to the right (2CH position), signal from the front inputs is routed to the  
rear channels.When the switch is to the left (4CH position), front and rear inputs are inde-  
pendent. This allows a source unit with an internal fader to fade between the front and rear  
outputs.  
Internal Crossover Configuration  
The crossover section of Orion 8004 amplifiers is continuously variable and extremely flexi-  
ble. There are eight different crossover configurations possible allowing high-pass, low-  
pass, and band-pass operation. This circuit is designed to optimize the performance of sub-  
woofers in all types of enclosures.  
When using loudspeakers, minor deviations from the recommended frequency ranges can  
provide superior results depending on your speaker locations and your vehicle acoustics.  
Setting crossover frequencies higher than recommended will not cause damage and may  
provide superior sonic results depending on your system's performance goals. Refer to your  
loudspeaker owner's manual for assistance in choosing the proper crossover frequencies for  
your system.  
WARNING! DO NOT set crossover frequencies lower than the speakers recommended  
operating range. This can cause driver failure that is not covered by manufac-  
turer's warranty.  
Low-Pass Crossover  
When the switch is to the right (OFF position), the low-pass crossover is bypassed. When the  
switch is to the left (ON position), the low-pass crossover is active. The low-pass crossover is  
continuously variable from 20Hz to 3kHz.  
High-Pass Crossover  
When the switch is to the right (OFF position), the high-pass crossover is bypassed. When  
the switch is to the left (ON position), the high-pass crossover is active. The high-pass  
crossover is continuously variable from 20Hz to 3kHz.  
High-Pass Woofers  
The high-pass crossover is continuously variable from 20Hz to 3kHz. The high-pass crossover  
is now optimized for use as a subsonic filter for subwoofers. Additionally, boost can be  
added for improved bass output while still protecting the woofer from excessive excursion.  
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©2003 Directed Electronics, Inc.  
Fine Tuning the Crossover Frequency  
The crossover section is marked at four frequency points for ease of system adjustment.  
These points are 20Hz, 250Hz, 1kHz, and 3kHz. Specific crossover points can be chosen  
based on the recommended operational bandwidth of your speakers.  
Auxiliary Output Configurations  
The auxiliary outputs on Orion amplifiers offer easy, unlimited system expansion. Routing  
signal from a source unit, pre-amplifier, or equalizer is a matter of connecting RCA's to the  
RCA Inputs and the RCA outputs to the next Orion amplifier in the signal chain. When the  
switch is in the COPY position, the RCA output is an identical copy of the input signal. The  
signal passes through a buffer stage so that several amplifiers can be daisy chained without  
signal loss or overloading of the source unit. This maximizes the signal output and mini-  
mizes the potential for system noise.  
When the switch is in the MASTER position, the RCA outputs are buffered through the gain  
stage of the amplifier and filtered through the crossover sections of the amplifier. When set  
this way, the amplifier's gain and crossover settings are sent to other amplifiers down the sig-  
nal chain. This can be useful for configuring multiple subwoofer amplifiers easily in a large  
SPL system. All subsequent amplifiers after the master amp will be in the COPY position and  
have their gains set to zero and all crossovers turned off. The master amplifier will control  
all the functions of the slave amps via the MASTER RCA output signal.  
INTELLi Bass Control  
INTELLi Bass maximizes the performance of a subwoofer and allows for continuous adjust-  
ment of low frequency boost. INTELLi Bass can be adjusted from 0dB to 10dB of boost cen-  
tered at 45Hz. Initially the Q is very low (wide). As INTELLi Bass is added, the Q rises (nar-  
rows). This allows the Orion 8004 to overcome acoustic deficiencies in your vehicle. The type  
of enclosure used, the sub-woofer's excursion capability, personal preference, and attitude  
determine acceptable boost levels.  
WARNING! Exercise caution when setting INTELLi Bass. Maximum boost can potentially  
cause woofer damage due to overexcursion.  
AMPLIFIER WIRING  
Power Connections  
Fuse Size: 80 AMP MAXI  
Minimum 8 gauge power and ground cable is recommended for acceptable per-  
formance.  
Fuse power wire prior to wire passing through panels or near sharp edges and less  
than 18" from battery.  
Ground amplifier to a good chassis ground as close as possible to the amplifier.  
Add extra ground wire (minimum 8 gauge) between the negative terminal of the  
battery and the chassis.  
NOTE:  
The addition of a ground wire from the battery to the chassis of the vehicle  
improves the ability of the battery to supply power to the amplifier. This helps  
especially in newer vehicles, where the current delivery of the factory electrical  
system was designed only to accommodate electronics supplied by the auto man-  
ufacturer.  
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©2003 Directed Electronics, Inc.  
Speaker Connections  
Four Channel Stereo Configuration  
Front and rear channel lowest recommended impedance is 2W stereo  
Crossover mode, output, and gain configurations are independently adjustable  
between the front and rear channels.  
Two-channel or four-channel input can be used for this configuration. For source  
unit fading, use the four-channel input mode.  
Front and rear outputs can be configured for high-pass, low-pass, or full range  
operation.  
Two Channel Bridged Configuration  
Front and rear channels are configured for bridged two-channel operation.  
Lowest recommended impedance for both front and rear channels is 4W.  
Crossover and gain configurations are independently adjustable between the  
front and rear channels.  
Two-channel operation is recommended for this operational mode.  
Front and rear outputs can be configured for high-pass, low-pass, or full range  
operation.  
Front and rear outputs can be configured for stereo (right channels will have right  
output, left channels will have left output) or summed two-channel operation  
(front speaker bridged, rear speaker bridged).  
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©2003 Directed Electronics, Inc.  
Three Channel Stereo/Bridged Configuration  
Front channels are configured for two-channel stereo operation.  
Front channel lowest recommended impedance is 2W stereo.  
Rear channels are configured for a single channel bridged output.  
Rear channel lowest recommended impedance is 4W.  
Crossover mode, output and gain configurations are independently adjustable  
between the front and rear channels.  
Two-channel or four-channel input can be used for this configuration. For source  
unit fading, use the four-channel input mode.  
Front and rear outputs can be configured for high-pass, low-pass or full-range  
operation.  
Rear outputs are configured for summed bridged operation for subwoofer appli-  
cations.  
Tri-Mode Six Channel Configuration  
Lowest recommended impedance is 2W stereo and 4W bridged mono.  
Front and rear outputs must be set for full range operation.  
Passive crossovers must be used on all components and frequencies must not overlap.  
WARNING! Failure to observe these requirements may result in damage to the amplifier.  
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©2003 Directed Electronics, Inc.  
AMPLIFIER INSTALLATION  
Choosing Mounting Locations  
The location of your amplifier will depend on several important issues. Due to the low pro-  
file size of the Orion amplifiers, there are many possible installation locations that will yield  
satisfactory amplifier performance. Always mount the amplifier in a place that protects the  
amplifier from the elements. In addition, mount the amplifier on a stable, flat surface.  
NOTE:  
Mounting amplifiers upside down is not recommended and may cause premature  
thermal shutdown.  
WARNING! Do not mount any amplifier in the engine compartment. Amplifiers are not  
designed to endure the harsh environment of the exterior elements.  
Passenger Compartment  
If you are going to mount the amplifier in the passenger compartment, make sure you have  
adequate room for ventilation. The amplifiers have been designed to make under-seat  
mounting possible. When mounting your amplifier under a seat or similar area, keep a min-  
imum of 1" of clearance around the amplifier for adequate cooling.  
Trunk Compartment  
Mounting your amplifier in the trunk provides excellent performance as long as you do not  
restrict the airflow around the heatsink of the amplifier. For optimal results, mount the  
amplifier with as much clearance as possible. This type of mounting will yield the best cool-  
ing due to the convection effect of the amplifier chassis.  
General Precautions and Installation Tips  
WARNING! Be careful not to cut or drill into gas tanks, fuel lines, brake lines, hydraulic  
lines, vacuum lines, or electrical wiring when working on your vehicle.  
Disconnect the vehicle's ground wire at the battery before making or breaking connections  
to the audio system's power supply terminals.  
Do not use this amplifier unmounted. Failing to securely mount the amplifier can result in  
damage or injury, particularly in the event of an accident. An unmounted amplifier becomes  
a dangerous projectile in the event of a crash. Never mount the amplifier where it might  
get wet. Mount the amplifier so the wire connections will not be pulled. Route the wires  
where they will not be scraped, pinched or damaged in any fashion.  
The +12V power supply wire must be fused as close as possible to the battery terminal, ide-  
ally within 18". Use the recommended fuse size or circuit breaker listed in the Power  
Connections section of this manual.  
If you need to replace the fuse plugged into the side of the amplifier, replace the fuse with  
the same size ATC / MAXI type fuse that came with the amplifier. If you are not sure as to the  
correct value, refer to the Power Connections section of this manual for details. Using a high-  
er current fuse may result in damage to the amplifier that is not covered under warranty.  
NOTE:  
Make sure all the equipment in the system is turned off when making or break-  
ing connections to the input RCA's or speaker terminals. Turn on the system and  
slowly turn up the volume control only after double checking all wire connections.  
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©2003 Directed Electronics, Inc.  
Power for systems with a single amplifier can be supplied by most automotive electrical sys-  
tems. Systems with multiple amplifiers may require a higher capacity battery, alternator or  
the use of a storage capacitor. We strongly recommend the use of a Directed Audio  
Essentials power capacitor with an extra battery in larger stereo systems.  
Orion amplifiers generate a certain amount of heat as part of normal operation. Be sure the  
area around the amplifier is unobstructed to allow adequate air circulation. Remember,  
beach blankets, last week's laundry, school books and homework papers located on top of  
the amplifier do not improve air flow and may become damaged.  
Tools of the Trade  
Listed below are the majority of the tools required to perform an installation. Having the  
proper tools will make the installation that much easier. Some of these tools are necessities;  
some will just make the job easier.  
Allen Wrenches (2.5mm and 3mm)  
DMM or VOM  
Electric drill with assorted drill bits  
Grommets  
Heat shrink tubing  
Marking pen  
Nylon tie straps  
Phillips and flat blade screw drivers  
Pliers (standard and needle nose)  
Reference CD with 1 kHz Sine Wave at 0dB level (all bits high)  
RTA (real time analyzer)  
Soldering iron and solder  
Utility knife  
Wire brush or sandpaper for chassis grounding  
Wire crimper  
Wire cutters  
Wire strippers  
Step By Step Installation  
Step 1  
Step 2  
Step 3  
Determine the location for the amplifier. Refer to the Choosing Mounting  
Locations section of this guide for detailed information.  
Decide on the system configuration for your amplifier. For system sugges-  
tions, refer to the Speaker Connections section of this guide.  
Run all the wires from the amplifier location to the speakers, source unit, and  
battery. Do not connect the battery at this time. Be sure to run RCAs and  
power and speaker wires away from factory electrical wires and system as  
they pose a great potential for induced system noise.  
Step 4  
Step 5  
Pre-drill amplifier mounting holes. Be sure to "think before you drill". Gas  
tanks, fuel lines, and other obstructions have a nasty way of hiding them-  
selves. For best results use a marking pen to mark the mounting holes and  
pre-drill these holes with a standard 1/8" drill bit.  
Mount the amplifier. Make sure the amplifier is mounted on a flat surface. If  
this is not possible, do not over tighten the screws so that the chassis of the  
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©2003 Directed Electronics, Inc.  
amplifier is twisted or bent.  
Step 6  
Step 7  
Step 8  
Step 9  
Turn the vehicle's key switch to the off position.  
Disconnect the vehicle's battery ground terminal.  
Connect power wires to the amplifier (ground first, then 12 V(+) and RGC).  
Connect the RCA and speaker wires to the amplifier. Check the quality of  
your speakers and signal connections. This will determine the ultimate per-  
formance of your Orion amplifier. Refer to the Signal Input and Output Level  
Controls and Speaker Connections sections of this guide for correct wiring  
instructions.  
Step 10 Reconnect the ground terminal to the battery after power, speaker, and con-  
nections are completed.  
Step 11 Set crossovers. Refer to the Internal Crossover Configuration section of this  
manual for detailed instructions.  
Step 12 Once satisfied that all connections and settings are correct, install the fuse  
located near the vehicle's battery and proceed to the Testing the System sec-  
tion of this manual.  
WARNING! Never exceed the recommended fuse size of this amplifier. Failure to do so will  
result in the voiding of your warranty and possible damage to the amplifier.  
SET UP AND TROUBLESHOOTING  
Testing the System  
After you have completed the installation, you need to test the system. This will help ensure  
years of trouble-free operation. Please refer to the listed steps below when testing the  
sound of your Orion system.  
Step 1  
Step 2  
Check all the wiring connections to be sure they are correct and secure.  
Turn the signal source volume control all the way down. Set any tone con-  
trols to their flat or defeated positions. This includes the loudness control.  
Step 3  
Step 4  
Turn the level controls of the amplifier to their minimum positions.  
Turn the source unit on. Check to see if the power LED located on the con-  
nection side of the amplifier is on. If not, please refer to the Power  
Connections and the Troubleshooting Tips sections of this manual for instruc-  
tions.  
Step 5  
Step 6  
Step 7  
If using an aftermarket source unit, turn the level controls of the amplifier  
about one quarter of a turn. Slowly increase the volume level of the source  
unit to so that you can hear the output of the system. If no sound is heard or  
if the output is distorted, turn the system off immediately. Refer to the Power  
Connections and the Troubleshooting Tips sections of this manual to solve  
your installation problems.  
Check to make sure the output for each channel is correct. If the active  
crossovers are used, check to make sure that each output is correct from the  
amplifier. When using active crossovers on midrange and tweeters, do not  
use crossover frequencies lower than recommended. If the system is not con-  
figured properly, refer to the Internal Crossover Configuration section of this  
manual and take corrective action.  
If the output is clear and undistorted, continue to the Adjusting the Sound  
of the System section of this manual.  
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Adjusting the Sound of the System  
Once you have checked the system's operation, adjust the sound of the system. Adjusting  
the sound of the system is accomplished by setting the level controls and adjusting the  
internal crossovers.  
Step 1  
Turn the signal source volume control all the way down. Set any tone con-  
trols to their flat or defeated positions. This includes the loudness control.  
Step 2  
Step 3  
Turn the level controls of the amplifier to their minimum positions.  
Choose music with high dynamic content that you like, with which you are  
familiar, and will be used most often in the system.  
Step 4  
Step 5  
Turn the source unit's volume control up to its highest undistorted output  
level. If you lack test equipment, this point occurs between 3/4 to full volume  
depending on the quality of your source unit. Listen for any audible distor-  
tion. If any distortion is audible, reduce the volume of the source unit until  
you have an undistorted output. Leave the volume control at this position  
during your system tuning.  
While listening to your chosen dynamic music, turn up the level control cor-  
responding to the midrange output until you hear slight distortion and turn  
the level control back slightly for an undistorted output. Depending on your  
system, the midrange and tweeter output may be on the same output chan-  
nels.  
Step 6  
Step 7  
Turn up the level control corresponding to the tweeter output until you hear  
slight distortion and turn back the level control slightly for an undistorted  
output. Depending on your system the midrange and tweeter output may be  
on the same output channels.  
Fine-tune the output level between midrange and tweeters. Refer to the  
Internal Crossover Configuration section of this manual for detailed instruc-  
tions.  
Step 8  
Step 9  
Repeat Steps 5-7 for the rear speakers. If you do not have rear speakers con-  
tinue to Step 10.  
Set levels between the front and rear midrange and tweeters for optimum  
front/rear balance.  
Step 10 Turn up the level control corresponding to the woofer output until you hear  
slight distortion and turn back the level control slightly for an undistorted  
output.  
Step 11 Fine-tune the output level between satellite speakers and the woofers. Refer  
to the Internal Crossover Configuration section of this manual for detailed  
instructions. If using an RGC-1, adjust the level to the output of the woofer  
to match the sonic requirements of the system.  
Step 12 Enjoy your awesome Orion sound system.  
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©2003 Directed Electronics, Inc.  
Troubleshooting Tips  
Symptom  
Probable Cause  
Action To Take  
No output  
Low or no remote turn-on Check remote turn-on voltage  
at voltage amplifier and repair  
as needed.  
Fuse blown  
Check power wire's integrity  
and check for speaker shorts. Fix  
as needed and replace fuse.  
Power wires not connected Check power wire and ground  
connections and repair or  
replace as needed.  
Audio input not connected Check RCA connections and  
repair or replace as needed.  
Speaker wires not  
connected  
Check speaker wires and repair  
or replace as needed.  
Speakers are blown  
Check system with known work  
ing speaker and repair or  
replace speakers as needed.  
Audio cycles  
on and off  
Thermal protection engages Make sure there is proper venti  
when amplifier heatsink lation for amplifier and improve  
temperature exceeds 90°C ventilation as needed.  
(190°F)  
Loose or poor audio input Check RCA connections and  
repair or replace as needed.  
Loose power connections  
Check power wire and ground  
connections and repair or  
replace as needed.  
Distorted output  
Amplifier level sensitivity  
set too high exceeding  
maximum capability of  
amplifier  
Readjust gain. Refer to the  
Adjusting the Sound of the  
System section of this manual  
for detailed instructions.  
Impedance load to amplifier Check speaker impedance load,  
too low  
if below 1W, rewire the speakers  
to achieve higher impedance.  
Shorted speaker wires  
Check speaker wire connections  
and fix or replace as needed.  
Speaker not connected  
to amplifier properly  
Check speaker wiring and repair  
or replace as needed. Refer to  
the Speaker Connections section  
of this guide for detailed  
instructions.  
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©2003 Directed Electronics, Inc.  
Symptom  
Probable Cause  
Action To Take  
Distorted output  
Internal crossover not set  
properly for speakers  
Readjust crossovers. Refer to the  
Internal Crossover Configuration  
section of this guide for detailed  
instructions.  
Speakers are blown  
Check system with known work  
ing speakers and fix or replace  
as needed.  
Poor bass response  
Speakers wired with wrong Check speaker polarity and fix  
polarity causing cancellation as needed.  
at low frequencies  
Crossover set incorrectly  
Reset crossovers. Refer to the  
Internal Crossover Configuration  
section of this guide for detailed  
instructions.  
Impedance load at amplifier Check speaker impedance load,  
is too low  
if below 1W, rewire speakers to  
achieve higher impedance.  
Battery fuse  
blowing  
Short in power wire or  
incorrect wiring  
Check power and ground con  
nections and replace or repair as  
needed.  
Fuse used is smaller than  
recommended  
Replace with proper fuse size.  
Actual current exceeds fuse Check speaker impedance load.  
rating  
If below 1W, rewire speakers to  
achieve higher impedance.  
Amplifier fuse  
blowing  
Fuse used is smaller than  
recommended  
Replace with proper fuse size.  
Impedance load at  
amplifier too low  
Check speaker impedance load.  
If below 1W, rewire speakers to  
achieve higher impedance.  
Speaker is blown with  
shorted outputs  
Check system with known work  
ing speakers and fix or replace  
as needed.  
Actual current exceeds  
fuse rating  
Check speaker impedance load.  
If below 1W, rewire speakers to  
achieve higher impedance.  
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©2003 Directed Electronics, Inc.  
NOTES  
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16  
©2003 Directed Electronics, Inc.  
Warranty  
LIMITED TWO YEAR CONSUMER WARRANTY:  
Directed Electronics, Inc. promises to the original purchaser, to replace this product should it prove  
to be defective in workmanship or material under normal use, for a period of two years from the  
date of purchase by the dealer as indicated by the date code marking of the product PROVIDED  
the product was installed by an authorized Directed dealer. During this two year period, there will  
be no charge for this replacement PROVIDED the unit is returned to Directed, shipping pre-paid.  
If the unit is installed by anyone other than an authorized Directed dealer, the warranty period will  
be 1 year from date of purchase by the dealer as indicated by the date code marking of the  
product. During this 1 year period, there will be no charge for this replacement PROVIDED the  
unit is returned to Directed, shipping pre-paid. This warranty is non-transferable and does not  
apply to any unit that has been modified or used in a manner contrary to its intended purpose,  
and does not cover damage to the unit caused by installation or removal of the unit. This warranty  
is void if the product has been damaged by accident or unreasonable use, neglect, improper service  
or other causes not arising out of defects in materials or construction. ALL WARRANTIES  
INCLUDING BUT NOT LIMITED TO EXPRESS WARRANTY, IMPLIED WARRANTY, WARRANTY  
OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, AND WARRANTY OF NON-  
INFRINGEMENT OF INTELLECTUAL PROPERTY ARE EXPRESSLY EXCLUDED TO THE  
MAXIMUM EXTENT ALLOWED BY LAW, AND DIRECTED NEITHER ASSUMES NOR  
AUTHORIZES ANY PERSON TO ASSUME FOR IT ANY LIABILITY IN CONNECTION WITH THE  
SALE OF THE PRODUCT. DIRECTED HAS ABSOLUTELY NO LIABILITY FOR ANY AND ALL ACTS  
OF THIRD PARTIES INCLUDING ITS AUTHORIZED DEALERS OR INSTALLERS. Unit must be  
returned to Directed, postage pre-paid, with: consumer's name, telephone number, and address,  
authorized dealer's name and address, and product description. IN ORDER FOR THIS WARRANTY  
TO BE VALID, YOUR UNIT MUST BE SHIPPED WITH PROOF OF INSTALLATION BY AN  
AUTHORIZED DIRECTED DEALER. ALL UNITS RECEIVED BY DIRECTED FOR WARRANTY  
REPAIR WITHOUT PROOF OF DIRECTED DEALER INSTALLATION WILL BE COVERED BY THE  
LIMITED 1 YEAR PARTS AND LABOR WARRANTY. Note: This warranty does not cover labor costs  
for the removal and reinstallation of the unit.  
BY PURCHASING THIS PRODUCT, THE CONSUMER AGREES AND CONSENTS THAT ALL  
DISPUTES BETWEEN THE CONSUMER AND DIRECTED SHALL BE RESOLVED IN ACCORDANCE  
WITH CALIFORNIA LAWS IN SAN DIEGO COUNTY, CALIFORNIA.  
© 2003 Directed Electronics, Inc. All rights reserved. G47445 2-03  

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