Orion Car Audio XTREME 300 User Manual

XTREME 300, 400, 800 & 1200  
OWNER'S MANUAL  
HIGH PERFORMANCE CAR AUDIO  
INTRODUCTION  
Thank you for your purchase of ORIONs XTREME power amplifier. Each XTREME amplifier is designed to be the leader in its class  
offering the most power, advanced features and extreme ease of use. In high-end sound systems or high SPL systems, the XTREME  
amplifiers will give you years of trouble-free performance.  
• XTREME 300- 75 watt per channel 2 channel amplifier with built-in fully variable high-pass, low-pass or bandpass cross-  
over with INTELLLi Q. Equipped with remote gain capability, the XTREME 300 is capable of 3, 2, or 1 channel operation  
with a maximum power capability of 300 watts into 4mono.  
• XTREME 400- 100 watt per channel 2 channel amplifier with built-in fully variable high-pass, low-pass or bandpass cross-  
over with INTELLLi Q. Equipped with remote gain capability, the XTREME 400 is capable of 3, 2, or 1 channel operation  
with a maximum power capability of 400 watts into 4mono.  
• XTREME 800- 200 watt per channel 2 channel amplifier with built-in fully variable high-pass, low-pass or bandpass cross-  
over with INTELLLi Q. Equipped with remote gain capability, the XTREME 800 is capable of 3, 2, or 1 channel operation  
with a maximum power capability of 800 watts into 4mono  
• XTREME 1200- 300 watt per channel 2 channel amplifier with built-in fully variable high-pass, low-pass or bandpass  
crossover with INTELLLi Q. Equipped with remote gain capability, the XTREME 1200 is capable of 3, 2, or 1 channel opera-  
tion with a maximum power capability of 1200 watts into 4mono  
The installation of all ORION components 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 this amplifier. To ensure proper sonic re-  
sults and component reliability, please refer to your Authorized ORION dealer for installation assistance of advice. If you decide to  
perform the installation yourself, read the entire installation section of this manual before beginning the installation.  
page 3  
ABOUT THIS MANUAL  
This manual is designed to answer your questions about this product. In the event you have questions not covered in this manual,  
please refer questions to your local Authorized ORION Dealer. Additionally, you can call ORIONs Technical Support Hotline at 1-  
800 315-2052 or (480) 705-5600 for assistance.  
PRACTICE SAFE SOUND  
Continuous exposure to sound pressure levels over 100 dB may cause permanent hearing loss. High powered automotive sound  
systems can generate sound pressure levels in excess of 130 dB. When playing your system at high levels, please use hearing pro-  
tection and prevent long term exposure.  
RECORD YOUR SERIAL NUMBER AND DATE:  
MODEL:  
SERIAL NUMBER:  
DATE OF PURCHASE:  
COMPANY PURCHASED FROM:  
page 4  
WHAT’S IN THE BOX  
QTY  
DESCRIPTION  
1
2
1
4
1
XTREME power amplifier  
2 conductor 4 gauge power connector  
5 conductor 12 gauge speaker connector  
#8 Phillips Pan Head Screws  
XTREME Reference Manual  
page 5  
WARRANTY  
ORION Industries Inc. warrants this product to be free from defects in material and workmanship under the following terms:  
Parts and Labor are warranted for a period of 3 years IF:  
a. The product is purchased from an Authorized ORION Dealer  
b. The product is installed by an Authorized ORION Dealer  
Parts and Labor are warranted for a period of 1 year IF:  
a. The product is purchased from an Authorized ORION Dealer  
b. The product is NOT installed by an Authorized ORION Dealer  
Parts and Labor are warranted for a period of 90 days IF:  
a. The product is NOT purchased from an Authorized ORION Dealer  
If you are uncertain as to whether your dealer is authorized, please contact ORION at 1-800-350-9726 or (480) 705-5600. In countries  
other than the USA, each distributor warrants the ORION product it sells.  
The Following conditions and situations are NOT covered by this warranty:  
Any product on which the serial number has been defaced, modified or removed  
Damage or malfunction resulting from:  
a. Accident, misuse, abuse, unauthorized modification or failure to follow the instructions provided with this product.  
b. Repair by anyone NOT authorized by ORION.  
c. Damage due to shipping (these claims must be presented to the freight carrier)  
d. Removal or installation of this product.  
e. Any failure that has NOT been caused by a defect in material or workmanship.  
This warranty is in effect for the original purchaser only. ORION will pay for labor and material expense for covered items. ORION does  
not cover removal or installation charges, payment of shipping charges to ORION, payment of OUT-OF-WARRANTY shipping charges,  
or damage to other property caused by any defects in this product.  
page 6  
For all warranty and non-warranty service issues, please refer to your nearest Authorized ORION Dealer for assistance. If you require  
additional information or assistance regarding service repair issues, please call 1-800-350-9726 or (480) 705-5600.  
Exclusion  
1. This warranty is in lieu of all other warranties expressed of implied  
2. In no event will ORION be liable for any consequential damages resulting from the use of this product or  
any defect of this product.  
This Warranty gives you specific legal rights and you may also have other rights which vary from state to state.  
page 7  
SPECIFICATIONS  
AMPLIFIER SECTION  
Power output 4 Stereo (watts)  
Power output 2 Stereo (watts)1  
Power output 4 Mono (watts)1  
XTREME 300  
XTREME 400  
100 watts  
XTREME 800  
200 watts  
XTREME 1200  
300 watts  
75 watts  
150 watts  
300 watts  
200 watts  
400 watts  
600 watts  
400 watts  
800 watts  
1200 watts  
Distortion all channels driven  
(from 20Hz to 20kHz)  
<0.1% THD  
<0.1% THD  
<0.1% THD  
<0.1% THD  
Frequency Response  
Linear Bandwidth  
20Hz to 20 kHz ±0.25 dB  
6Hz to 50 kHz ±3dB  
20Hz to 20 kHz ±0.25 dB  
6Hz to 50 kHz ±3dB  
20Hz to 20 kHz ±0.25 dB  
6Hz to 50 kHz ±3dB  
20Hz to 20 kHz ±0.25 dB  
6Hz to 50 kHz ±3dB  
Signal-to-noise ratio full bandwidth  
@ rated output power  
> 100 dB  
> 100 dB  
> 100 dB  
> 100 dB  
Damping factor @ output connector  
full bandwidth  
>400 at output connector  
> 30V/µs  
>400 at output connector  
> 30V/µs  
>400 at output connector  
> 30V/µs  
>400 at output connector  
> 30V/µs  
Slew Rate  
input sensitivity3  
200 mV to 5 Vrms  
200 mV to 5 Vrms  
200 mV to 5 Vrms  
200 mV to 5 Vrms  
page 8  
input impedance  
fuse type  
47kΩ  
47kΩ  
47kΩ  
47kΩ  
(2) 15 AMP ATC  
(2) 20 AMP ATC  
(2) 30 AMP ATC  
(6) 30 AMP ATC  
CROSSOVER  
SECTION  
low-pass crossover4  
Continuously  
variable  
Continuously  
variable  
Continuously  
variable  
Continuously  
variable  
low-pass frequency range  
high-pass crossover  
45Hz to 5kHz  
45Hz to 5kHz  
45Hz to 5kHz  
45Hz to 5kHz  
Continuously  
variable  
Continuously  
variable  
Continuously  
variable  
Continuously  
variable  
high-pass frequency range  
10Hz to 1kHz,  
10Hz to 1kHz,  
10Hz to 1kHz,  
10Hz to 1kHz,  
100Hz to 10kHz  
100Hz to 10kHz  
100Hz to 10kHz  
100Hz to 10kHz  
INTELLi Q boost range  
0dB to 10dB  
0dB to 10dB  
0dB to 10dB  
0dB to 10dB  
GENERAL  
11" x 10.25" x 2.25"  
279mm x  
12" x 10.25" x 2.25" 18" x 10.25" x 2.25"  
25" x 10.25" x 2.25"  
635mm x  
305mm x  
457mm x  
260mm x 57mm  
(L x W x H)  
260mm x 57mm  
(L x W x H)  
260mm x 57mm  
(L x W x H)  
260mm x 57mm  
(L x W x H)(L x W x H)  
1. All channels driven, continuous 4 load, 20 Hz to 20,000 Hz, <0.1% THD, power input voltage at 12.0 VDC.  
2. All channels driven, continuous 2 load, 20 Hz to 20,000 Hz, <0.1% THD, power input voltage at 12.0 VDC.  
page 9  
TECHNICAL DESIGN FEATURES  
page 10  
AMPLIFIER CALL OUTS  
1. Power LED-when lit indicates that the amplifier is on.  
2. Output Configuration Switches-determine the output  
configuration of the amplifier  
3. Independent Gain Controls-continuously adjust from  
200mV to 5Vrms for full power output  
4. RCA inputs-accepts RCA input from a source unit,  
preamplifier or equalizer  
5. AUX RCA outputs-provides easy connection to  
additional amplifiers.  
6. AUX RCA output control-determines the audio signal  
out the AUX RCAs  
7. Low-pass Frequency Control-adjusts the frequency of  
the low-pass crossover  
8. Low-pass Crossover activation switch-activates the  
low-pass crossover  
13. REM Remote turn-on input-turns on the amplifier when  
fed 12 V+  
9. INTELLI Q adjust control-adjusts the “Q” boost of the  
high-pass crossover  
14. Speaker Connections-allows up to 12 gauge speaker wire.  
15. Remote Gain Control Port-allows dashboard remote  
gain control.  
10. High-pass x10” Frequency range switch- selects the  
frequency range of the high-pass crossover  
16. Fuses-Protects the amplifier from over current situations.  
11. High-pass frequency control- adjusts the frequency of the  
high-pass crossover  
17. Power Connections-allows up to 4 gauge power and  
ground cables.  
12. High-pass Crossover activation switch- activates the  
high-pass crossover  
page 11  
SYSTEM PLANNING  
The easiest way to maximize the performance for your  
ORION XTREME amplifier is to properly plan your system.  
By planning your system, you can avoid situation  
where the performance of the reliability of your system  
is compromised. Your Authorized ORION dealer has been  
trained by ORION Industries on how to maximize your  
systems sonic potential. Authorized ORION dealers are  
a valuable resource in helping you with your system de-sign  
and installation. If you wish to venture on with your  
own system design, here are some systems designed by  
ORION Industries.  
SYSTEM 1 is a simple two channel amplifier driving a  
pair of satellites  
Lowest Recommended Impedance is 2Stereo.  
RCA inputs are connected to both left and right  
channels  
Left Phase switch set to 0°  
Right Phase switch set to 0°  
TUNING NOTE: The phase switches can be individually switched for  
improved sound quality. Try different phase switch positions for best  
sonic results.  
Gain controls can be set together or independently  
of each other  
Output is configured for high-pass operation.  
Output is configured for stereo operation.  
page 12  
SYSTEM 2 adds an additional amplifier to  
drive the subwoofers. A RGC-1 (Remote Gain  
Control) has been added to the subwoofer ampli-  
fier for dash mounted subwoofer level control.  
AMPLIFIER 1  
Output is configured for high-pass  
operation.  
Left Phase switch set to 0°  
Right Phase switch set to 0°  
Gain controls can be set together or  
independently of each other  
AMPLIFIER 2  
Output is configured for band-pass  
operation.  
The high-pass crossover is used as a sub  
sonic filter with INTELLi Q.  
RCA inputs are connected to both left  
and right channels  
TUNING NOTES:  
Am p lifie r 1:  
The phase switches can be individually switched for improved  
Left Phase switch set to 0°  
sound quality. Try different phase switch positions for best sonic results.  
Right Phase switch set to 180°  
Am plifier 2: The phase switches can be individually switched for improved  
sound quality. In the summed bridged configuration the left and the right phase  
must be set opposite from each other in order to operate correctly. The high-pass  
crossover is used as a subsonic filter with INTELLi Q. Configure the high-pass  
crossover for “LOW” frequency range operation and set according to instructions  
explained in the High-pass Crossover Section in this manual.  
Gain controls must be set identically for  
both left and right channels.  
page 13  
SYSTEM 3  
page 14  
SYSTEM 3 adds an additional amplifier and another set of satellites to SYSTEM 2 for a front rear fade system.  
AMPLIFIER 1 & 2  
AMPLIFIER 3  
Output is configured for high-pass operation.  
Output is configured for band-pass operation.  
Left Phase switch set to 0°  
Right Phase switch set to 0°  
The high-pass crossover is used as a subsonic filter with INTELLi Q.  
RCA inputs are connected to both left and right channels  
Left Phase switch set to 0°  
Gain controls can be set together or  
independently of each other  
Right Phase switch set to 180°  
Gain controls must be set identically for both left and right channels.  
page 15  
SYSTEM 4  
SYSTEM 4 adds an amplifier to system 4 to the front satellites for more power  
and control.  
AMPLIFIER 1 & 3  
Output is configured for high-pass operation.  
Left Phase switch set to 0°  
Right Phase switch set to 0°  
Gain controls can be set together or independently of each other  
page 16  
AMPLIFIER 2  
AMPLIFIER 4  
Output is configured for bandpass operation.  
Output is configured for band-pass operation.  
Left Phase switch set to 0°  
Right Phase switch set to 0°  
The high-pass crossover is used as a subsonic filter with INTELLi Q.  
RCA inputs are connected to both left and right channels  
Left Phase switch set to 0°  
Gain controls can be set together or independently  
of each other  
Right Phase switch set to 180°  
Gain controls must be set identically for both left and right channels  
page 17  
SYSTEM 5  
page 18  
SYSTEM 5 has one amplifier driving front satellites, one amplifier running as a Master Amplifier and addi-  
tional amplifiers running as Slave amplifiers to the master. The subwoofer amplifiers are configured in a Master/  
Slave configuration for absolute crossover and level matching.  
AMPLIFIER 1  
• Output is configured for  
AMPLIFIER 2  
• Output is configured for  
band-pass operation.  
AMPLIFIER 3, 4 & 5  
• Output is configured for full  
range operation.  
high-pass operation.  
Left Phase switch set to 0°  
• Right Phase switch set to 0°  
• The high-pass crossover is used as a  
subsonic filter with INTELLi Q.  
• RCA inputs are connected to both  
left and right channels  
• RCA inputs are connected to both  
left and right channels  
Left Phase switch set to 0°  
• Right Phase switch set to 0°  
• Gain controls can be set together  
or independently of each other  
Left Phase switch set to 0°  
• Gain controls must be set to  
minimum positions  
• Right Phase switch set to 180°  
• Gain controls must be set identically  
for both left and right channels.  
page 19  
POWER CONNECTIONS  
Amplifier  
Fuse Size  
XTREME-300  
XTREME 400  
XTREME 800  
XTREME 1200  
(2) 15 AMP  
(2) 20 AMP  
(2) 30 AMP  
(6) 30 AMP  
page 20  
Power connections made through a large 4 gauge removable terminal connector. (Dual 4 gauge connectors of the  
XTREME 1200)  
4 Gauge power and ground wire recommended for optimal performance. (Dual 4 gauge connectors of the  
XTREME 1200)  
Minimum 8 Gauge power and ground cable is recommended for acceptable performance. (Use only 4 gauge power wire  
on the XTREME 1200).  
Connect 12V+ to the battery through fuse holder. This connection provides +12V main power to the amplifier.  
Power wire must be fused less than 18” from battery.  
Ground amplifier to a good chassis ground as close as possible to the amplifier.  
Connect REM terminal to remote turn-on lead from source unit. This connection provides +12V power to turn-on  
the amplifier.  
Add Extra Ground wire 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 manufacturer.  
WARNING: The XTREME 1200 has two seperate 4 gauge power and ground inputs. Both pairs of connections must use 4 gauge  
power wire for proper operation. Failure to do this may damage the amplifier and is not covered under warranty.  
page 21  
POWER CONNECTIONS XTREME 1200  
Amplifier  
Fuse Size  
XTREME 1200  
(6) 30 AMP  
page 22  
Power connections made through dual large 4 gauge removable terminal connector.  
Dual 4 Gauge power and ground wire required for proper performance.  
Connect 12V+ to the battery through power distribution and fuse holder. This connection provides +12V main power to the  
amplifier.  
Power wires must be fused less than 18” from battery.  
Terminate both grounds for amplifier to a good chassis ground as close as possible to the amplifier.  
Connect REM terminal to remote turn-on lead from source unit. This connection provides +12V power to turn-on  
the amplifier.  
Add Extra Ground wire between the negative terminal of the battery and the chassis. Either dual 4 gauge or singal 1/0 gauge.  
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 manufacturer.  
WARNING: The XTREME 1200 has two seperate 4 gauge power and ground inputs. Both pairs of connections must use 4 gauge  
power wire for proper operation. Failure to do this may damage the amplifier and is not covered under warranty.  
page 23  
TWO CHANNEL STEREO CONFIGURATION  
6
1 0 0 .1  
FI  
INPUT  
AUX  
LOW-PASS HIGH-PASS  
AUX  
RCA  
INPUT  
RCA  
RIGHT PHASE  
LEFT PHASE  
600Hz 5kHz  
6dB 10dB  
120Hz 1kHz  
35Hz 10Hz  
POWER  
R
L
0
180  
0
MONO  
BRIDGE  
COPY MASTER  
RIGHT LEFT  
GAIN GAIN  
GAIN 175Hz 45Hz  
3dB  
0dB  
180  
LP ON  
LP OFF  
HP x 10  
HP x 1  
HP ON  
HP OFF  
SPEAKER OUTPUTS  
REMOTE FUSE  
POWER  
LEFT  
RIGHT  
REM  
BRIDGED  
REM  
GAIN  
12V+ GND  
+
_
+
_
2 ohm minimum  
page 24  
Lowest Recommended Impedance is 2Stereo.  
RCA inputs are connected to both left and right channels  
Left Phase switch set to 0°  
Right Phase switch set to 0°  
Gain controls can be set together or independently of each other  
Output can be configured for high-pass, low-pass, band-pass or full range operation.  
Output is configured either for stereo operation.  
TUNING NOTE: The phase switches can be individually switched for improved sound quality. Try different phase switch positions  
for best sonic results. The high-pass crossover can be used as a subsonic filter with INTELLi Q. Configure the  
high-pass crossover for LOWfrequency range operation and set according to instructions explained in the  
High-pass Crossover Section in this manual.  
page 25  
SUMMED BRIDGED CONFIGURATION  
page 26  
Lowest Recommended Impedance is 4bridged mono.  
RCA inputs are connected to both left and right channels  
Left Phase switch set to 0°  
Right Phase switch set to 180°  
Gain controls must be set identically for both left and right channels.  
Output can be configured for high-pass, low-pass, band-pass or full range operation.  
Output is configured summed bridged which is ideal for subwoofer applications..  
TUNING NOTE: The phase switches can be individually switched for improved sound quality. In the summed bridged configura  
tion the left and the right phase must be set opposite from each other in order to operate correctly. The high-  
pass crossover can be used as a subsonic filter with INTELLi Q. Configure the high-pass crossover for LOWfre  
quency range operation and set according to instructions explained in the High-pass Crossover Section in this  
manual.  
page 27  
SINGLE CHANNEL BRIDGED CONFIGURATIONS  
page 28  
Lowest Recommended Impedance is 4bridged mono.  
Only the Right RCA input is used  
Right Phase switch set to 0°  
Left Phase switch set to MONO BRIDGED”  
Right Gain control sets the level for the amplifier output.  
Output can be configured for high-pass, low-pass, band-pass or full range operation.  
Output is configured mono bridged which is ideal for separate left or right channel subwoofer applications..  
TUNING NOTE: In the MONO BRIDGEDconfiguration, the Right Phase control can be used to change the phase of the amplifier  
output. The right phase switches can be individually switched for improved sound quality. Try different phase switch  
positions for best sonic results. The high-pass crossover can be used as a subsonic filter with INTELLi Q. Configure the  
high-pass crossover for LOWfrequency range operation and set according to instructions explained in the High-  
pass Crossover Section in this manual.  
page 29  
TRI-MODE THREE CHANNEL CONFIGURATION  
page 30  
Lowest Recommended Impedance is 2stereo and 4bridged mono.  
RCA inputs are connected to both left and right channels  
Left Phase switch set to 0°  
Right Phase switch is set to 180°, Speaker polarity on the right channel must be inverted to maintain proper speaker polarity.  
Gain controls must be set identically for both left and right channels.  
Output must be configured for full range operation.  
Passive crossover frequencies must not overlap.  
WARNING: Failure to do so may result in damage to the amplifier.  
For optimum performance results, we recommend the use of the ORION CSX-TMC. This passive crossover is designed for  
4satellites and a single 4subwoofer.  
Output is configured summed bridged, which is ideal for single subwoofer applications..  
TUNING NOTE: The phase switches can be individually switched for improved sound quality. In the Tri-mode configuration the  
left and the right phase must be set opposite from each other in order to operate correctly. The high-pass cross  
over can be used as a subsonic filter with INTELLi Q. Configure the high-pass crossover for LOWfrequency  
range operation and set according to instructions explained in the High-pass Crossover Section in this manual.  
page 31  
INPUT SECTION  
The input section of the amplifier consists of separate phase switches that set output configuration, separate left and right gain  
controls and RCA inputs. The input section makes it easy to adapt this amplifier to most system configurations  
PHASE SWITCHES  
The XTREME amplifier has separate left and right phase control switches. There  
are six different setting combinations. Setting 1 is the factory configuration. Both  
left and right channels are in Phase. Both left and right gain controls are active.  
Setting 2 inverts the output of the right channel. The right channel is 180° out of  
phase from the left channel. Both left and right gain controls are active. This  
configuration is useful for Tri-mode operation. Additionally, inverting one channel  
of satellite speakers can focus imaging.  
Setting 3 inverts the output of the left channel. The left channel is 180° out of  
phase from the right channel. Both left and right gain controls are active. This  
configuration is useful for Tri-mode operation. Inverting one channel of satellite  
speakers can focus imaging.  
page 32  
Setting 4 inverts the output of both the left and right channels. Both left and right  
gain controls are active. This configuration is useful for inverting one set of speakers  
like rear speakers in front/rear system to improve staging in a vehicle.  
Setting 5 inverts the output of the left channel. The left channel is 180° out of phase  
from the right channel. Only the right gain control is active. This is the MONO  
BRIDGEDoutput configuration. Right Phase control determines the phase of the  
output. When the Right Phase control is in the 0  
phase with the rest of the system.  
°
position, the bridged output is in  
Setting 6 inverts the output of the bridged output . The mono bridged input is 180°  
out of phase from the rest of the system. Only the right gain control is active. This is  
the MONO BRIDGEDoutput configuration. Right Phase control determines the  
phase of the output. When the Right Phase control is in the 180° position, the  
bridged output is out of phase with the rest of the system.  
INPUT GAIN  
XTREME amplifiers have separate left and right level adjustments. The input sensitivity  
of these adjustments range from 200mV up to 5Vrms to easily integrate with any  
source unit both after market and OEM (Original Equipment Manufacturer) Refer to  
the Testing the System and the Adjusting the Sound of the System for detailed instruc-  
tions on setting up the level controls.  
page 33  
INTERNAL CROSSOVER SECTION  
The crossover section of the XTREME amplifier is continuously variable and ex-  
tremely flexible. There are eight different crossover configurations possible allow-  
ing high-pass, low-pass and band-pass configurations. New for ORION amplifiers is  
the INTELLi Q feature on the high-pass crossover. This circuit is designed to opti-  
mize the performance of ORION subwoofers in all types of enclosures.  
When using ORION loudspeakers, minor deviations from the recommended frequency ranges can provide superior results depend-  
ing 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 systems performance goals. Refer to your loudspeaker owners  
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 manufacturers warranty.  
LOW-PASS CROSSOVER  
When the push  
button is in the  
outposition,  
the low-pass  
When the push  
button is in the  
inposition,  
the low-pass  
crossover is bypassed.  
crossover is active.  
The low-pass  
crossover is  
continuously variable  
from 45 Hz to 5 kHz.  
page 34  
FINE TUNING THE LOW-PASS CROSSOVER  
The crossover section is marked at four frequency points for  
ease of system adjustment. These points are 45 Hz, 175 Hz ,  
600 Hz and 5,000 Hz. Specific crossover points can be to be  
chosen based on the recommended operational bandwidth  
of your speakers.  
There are three small dots on the frequency range dial.  
These dots represent commonly used ORION crossover fre-  
quencies. These crossover frequencies are 85 Hz, 2,500 Hz  
and 3,500 Hz respectively.  
page 35  
HIGH-PASS CROSSOVER  
When both push buttons are in the outposition, the high-pass crossover is by-  
passed.  
MID AND TWEETERS  
When both push buttons are in the inposition, the high-pass crossover is active in  
the HIGHfrequency range. The high-pass crossover is continuously variable from  
100 Hz to 10 kHz. This setting is used for crossing over midrange and tweeter speakers.  
Set the INTELLi Q level to 0 dB.NOTE: When the high-pass crossover is in the  
HIGHfrequency range, the frequency indicators represent 1/10 of the crossover fre-  
quency. For example, 35Hz = 350Hz.  
WARNING!!!  
When using the crossover in the HIGHrange, it is not  
recommended to use the INTELLi Q as it may potentially  
damage your midrange or tweeter speakers.  
HIGH-PASS WOOFERS  
When only the push button to activate the high-pass crossover is in the inposition,  
the high-pass crossover is active in the LOWfrequency range. The high-pass cross-  
over is continuously variable from 10 Hz to 1 kHz. The high-pass crossover is now opti-  
mized for use as a subsonic filter for subwoofers. Additionally, boost can be added at  
the high-pass crossover frequency for improved bass output while still protecting the  
woofer from excessive excursion. The INTELLi Q adjustment allows up to 10 dB of  
boost at the crossover frequency. Care must be taken when setting the INTELLi Q at or  
near the maximum boost.  
page 36  
FINE TUNING THE HIGH-PASS CROSSOVER HIGH RANGE”  
The crossover section is marked at four frequency points for  
ease of system adjustment. These points are 10 Hz, 35 Hz , 120  
Hz and 1 kHz. Specific crossover points can be to be chosen  
based on the recommended operational bandwidth of your  
speakers.  
Note: When the high-pass crossover is set in the HIGHfre-  
quency range, the corner frequencies are 100 Hz, 350 Hz,  
1.2 kHz and 10 kHz respectively.  
page 37  
ADJUSTING INTELLI Q  
Bo o st Le ve ls  
0d B  
+3d B  
+6d B  
+10d B  
En clo su re Typ e :  
In fin it e Ba ffle  
Acceptable, No  
High X-Max  
Not Recommended  
Not Recommended  
Problems. Tune above  
Fs of woofer.  
Drivers. Tune above  
Fs of woofer.  
Se a le d  
Ve n t e d  
Acceptable, No  
Problems. Tune above  
Fs of woofer.  
Acceptable, No  
Problems. Tune above  
Fs of woofer.  
High X-Max Drivers.  
Tune above Fs  
of woofer.  
Not Recommended  
Acceptable No  
Problems. Tune to  
Port frequency.  
Acceptable No  
Problems. Tune to  
Port frequency.  
Acceptable No  
Problems. Tune to  
Port frequency.  
High X-Max Drivers.  
Tune to port frequency.  
Se a le d Ba n d p a ss Acceptable No  
Problems. Tune above  
Acceptable No  
Problems. Tune above  
Fs ofwoofer.  
High X-Max Drivers  
Drivers. Tune above  
Fs ofwoofer.  
Not Recommended  
Fs ofwoofer.  
Ve n t e d Ba n d p a ss Acceptable No  
Problems. Tune to  
Acceptable No  
Problems. Tune to  
port frequency.  
Acceptable No  
Problems. Tune to  
port frequency.  
High X-Max Driver.  
Tune to  
port frequency.  
port frequency.  
Ap e rio d ic  
Set crossover to Fs  
of woofer.  
Set crossover to Fs  
of woofer.  
Set crossover to Fs  
of woofer.  
Not Recommended  
page 38  
Incorporated in the high-pass crossover, INTELLi Q maximizes the performance of  
a subwoofer. The high-pass subsonic filter removes unwanted bass output from  
the woofer, increasing the output of a subwoofer by as much as 3 dB due to the  
increased mechanical power handling. Depending on the enclosure, using INTELLi  
Q can increase the low frequency response by an additional 10dB!!! The boost  
level is identified by the corner markings. Acceptable boost levels are determined  
by the type of enclosure used and the woofers excursion capability. Listed below  
are recommended boost levels for different enclosure designs.  
QBOOST FILTER RESPONSE  
On the left is a frequency response  
of the high-pass filter set to 30 Hz.  
On the right frequency response of  
the high-pass filter set to 20Hz.  
INTELLi Q levels of 0dB, 3dB, 6dB  
and 10dB are displayed respectively.  
page 39  
INFINITE BAFFLE EXAMPLE HIGH-PASS SET @ 30Hz  
By removing low frequency signal  
which the woofer cannot produce, the  
woofer can play its capable range  
louder The first example is an infinite  
baffle situation. The left Graph  
displays the frequency response of  
a 12 inch woofer in an infinite baffle  
application without the high-pass filter,  
with the filter and with the filter and the INTELLi Q set to +3dB. As you can see with +3dB of boost and the high-pass filter set to  
30Hz, the woofer has more output down to 25Hz and less overall excursion when compared to the non-high-pass response. Maxi-  
mum physical excursion capability of the woofer is 15mm.  
SEALED EXAMPLE HIGH-PASS SET @ 20Hz  
This sealed example is the same 12 inch  
woofer in the recommended sealed  
enclosure. Up to 6 dB of boost is  
capable at 20 Hz was used. With +6dB  
of boost, the woofer has more output  
down to 15 Hz.  
page 40  
SEALED EXAMPLE HIGH-PASS SET @ 30Hz  
In this example, the frequency has  
been increased to 30 Hz. Up to 6 dB  
of boost is capable at this frequency.  
With +6dB of boost, the woofer has  
more output down to 23 Hz.  
Overall usable output is increased.  
VENTED EXAMPLE HIGH-PASS SET @ 30Hz  
Vented enclosure benefit most from  
the INTELLi Q. Up to 10 dB of  
boost is capable at the box tuning  
frequency of 30 Hz. With +10dB of  
boost, the woofer has more output  
down to 22 Hz. The excursion below  
the tuning frequency has been  
greatly reduced.  
page 41  
AUXILIARY OUTPUT SECTION  
The auxiliary outputs offer ORION amplifiers easy unlimited system expansion .  
Routing signal from a source unit, pre-amplifier or equalizer is a matter of routing  
RCAs into the RCA Inputs and out the AUX outputs to the next XTREME or HCCA  
amplifier in the signal chain. When the switch is in the COPYposition, the AUX  
RCA is an identical copy of the RCA inputs. The signal passes through a buffer  
stage so that an infinite number of XTREME amplifiers can be daisy chained with-  
out signal loss or overloading of the source unit. This maximizes the amplifier out-  
put and minimizes the potential for system noise.  
When the switch is in the GAINposition, the AUX RCAs are buffered through  
the gain stage of the amplifier. When the first amplifier in the signal chain is set this  
way, a remote gain controller can be installed in the amplifier and act as a PRE-  
AMPcontrolling the overall level of the system. Following amplifiers can be con-  
figured in either the COPYor MASTERconfiguration for an infinite number  
of XTREME or HCCA amplifiers in the signal chain without signal loss or overload-  
ing of the source unit. This maximizes the amplifier output and minimizes the poten-  
tial for system noise.  
When the switch is in the MASTERposition, the AUX RCA are buffered through  
the gain stage of the amplifier and filtered through the crossover section of the  
amplifier. When set this way, one amplifiers gain and crossover setting can be sent  
to other amplifier down the signal chain. This can be useful for configuring mul-  
tiple subwoofer amplifiers easily in a large SPL system. A Remote gain controller  
will also control the level of all the amplifiers following the amplifier configured in  
this master setting. An infinite number of XTREME or HCCA amplifiers in the sig-  
nal chain without signal loss or overloading of the source unit. This maximizes the  
amplifier output and minimizes the potential for system noise.  
page 42  
Remote Gain Section  
The remote gain port provides easy remote access to the internal gain structure of  
the XTREME power amplifier. The RGC-1 plugs into the amplifier via the 1/8mini  
jack plug. The RGC-1 can be installed in the front of the vehicle to control the am-  
plifier gain level. The RGC-1 can be used as a bass level control when used on an  
amplifier dedicated to subwoofers  
page 43  
INSTALLATION TIPS  
TOOLS FOR THE TRADE  
Listed are the majority of the tools required to perform the installation. Having the proper tools will make the installation that  
much easier. Some of these tools are necessities. Some make the job much easier.  
marking pen  
heat shrink tubing  
nylon tie straps  
electric drill with assorted drill bits  
utility knife  
volt-ohm meter (optional)  
wire cutters  
Phillips and flat blade screw drivers  
pliers (standard and needle nose)  
wire brush or sandpaper for chassis grounding  
solder iron and solder  
wire crimpers  
wire strippers  
RTA (real time analyzer)  
grommets  
Reference CD with 1 kHz Sine Wave at 0dB level  
(all bits high)  
page 44  
CHOOSING MOUNTING LOCATIONS  
The location of your XTREME amplifier will depend on several important issues. Due to the low profile size of the XTREME amplifi-  
ers, 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 mounting surface. As with  
any amplifier, there are several possible mounting locations and configurations that can be optimal. We will cover the most obvi-  
ous of situations.  
PASSENGER COMPARTMENT MOUNTING  
If you are going to mount the amplifier in the passenger compartment, make sure you have ad-  
equate room for ventilation. The XTREME amplifiers have been designed to make possible un-  
der seat mounting. When mounting your amplifier under a seat or similar area, keep a mini-  
mum of 1of clearance around the amplifier for adequate cooling.  
TRUNK COMPARTMENT MOUNTING  
Mounting the XTREME amplifier in the trunk provides excellent performance as long as you do  
not mount the amplifier upside down or restrict the airflow around the heatsink of the ampli-  
SPEAK  
E
R
O
UTPUT  
S
R
E
M
O
TE  
FUSE  
POWER  
I  
R
I
G
H
T
L
E
F
T
E
E
E
R
E
M
B
R
I
DGE  
D
REM  
R
L
1
2
V+  
GND  
GAIN  
R  
U
fier. For optimal results, mount the amplifier with the cooling fins in the vertical position. This  
type of mounting will yield the best cooling due to the convection effect of the amplifier chas-  
sis  
ENGINE COMPARTMENT MOUNTING  
Do not mount the XTREME amplifier in the engine compartment. The amplifier was not de-  
signed to endure the harsh environment of the exterior elements.  
page 45  
GENERAL PRECAUTIONS AND INSTALLATION TIPS  
Caution: 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 vehicles ground wire at the battery before making or breaking connections to the audio systems power supply  
terminals.  
Do not use the XTREME Amplifier unmounted. Failing to securely mount the amplifier can result in damage or injury, particularly  
in the event of an accident. An unmounted amplifier acts like a heat-seeking missile in the event of a crash. Never mount a  
XTREME Amplifier where it might get wet. Mount the XTREME 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, ideally 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 XTREME amplifier, replace the fuse with the same size ATC 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 higher current fuse may result in damage to the XTREME amplifier which is not covered under warranty.  
NOTE: Make sure all the equipment in the system is turned off when making or breaking connections to the XTREME input RCAs or  
speakers terminals. Turn on the system and slowly turn up the volume control only after double checking all wire connections.  
Power for systems with a single XTREME amplifier can be supplied by most any automotive electrical system. Systems with mul-  
tiple amplifiers may require a higher capacity battery, alternator or the use of a storage capacitor. WE strongly recommend the  
use of both a WIRED! Transient Storage Capacitor and a MBR70 with an extra battery in larger stereo systems.  
XTREME amplifiers generate a certain amount of heat as part of its normal operation. Be sure the area around the cooling fins is  
unobstructed to allow adequate air circulation. Remember, beach blankets, last weeks laundry, school books and homework pa-  
pers located on top of the amplifier, does not improve air flow.  
page 46  
STEP BY STEP INSTALLATION  
Step 1 Determine the location for the amplifier. Refer to the Mounting Locations section in this manual for detailed information.  
Step 2 Decide on the system configuration for your amplifier. For system suggestions, refer to the System Planning  
section of this manual.  
Step 3 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, power and speaker wires away from factory electrical wires and system as they  
pose a great potential for induced system noise.  
Step 4 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 themselves. For best results use a marking pen to mark the mounting holes and  
pre--drill these holes with a standard 1/8drill bit.  
Step 5 Mount the amplifier. Make sure the amplifier is mounted on a flat surface. If this is not possible, do not over  
tighten the screws such that the chassis of the amplifier is twisted or bent.  
Step 6 Turn the vehicles key switch to the off position.  
Step 7 Disconnect the vehicles battery ground terminal.  
Step 8 Connect the RCA and speaker wires to the amplifier. Check the quality of your speakers and signal connections.  
This will determine the ultimate performance of your ORION amplifier. Refer to the Installation quick reference  
section of this manual for correct wiring instructions.  
Step 9 Connect power wires to the amplifier. At this time do not connect the fuse at the main battery.  
Step 10 Reconnect the ground terminal to the battery.  
Step 11 Set crossover and signal routing configurations. Refer to the signal routing switches and the internal crossover  
configuration sections of this manual for detailed instructions.  
Step 12 Once satisfied that all connections and settings are correct, install fuse at location near the vehicles battery and  
proceed to the testing the system section of this manual.  
WARNING!!!! Never exceed the recommended fuse size of this amplifier. Failure to do so will result in the void of your warranty.  
page 47  
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 re-  
fer to the listed steps below when testing the sound of your ORION XTREME system.  
Step 1 Check all the wiring connections to be sure they are correct and secure.  
Step 2 Turn the signal source volume control down all the way. Set any tone controls to their flat or defeated positions.  
This includes the loudness control.  
Step 3 Turn the level controls of the amplifier to their minimum positions.  
Step 4 Turn the source unit on. Check to see if the remote power LED located on the connection side of the amplifier is on.  
If not, please refer to the power connections section and the trouble shooting section of this manual for instructions.  
Step 5 If using a aftermarket source unit, turn the level controls of the amplifier about one quarter of a turn. Slowly in  
crease 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 section and the trouble  
shooting section of this manual to solve your installation problems  
Step 6 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 configured properly, refer to the internal  
crossover section of this manual and take corrective action.  
Step 7 If the output is clear and undistorted, continue to the adjusting the sound of the system section of this manual.  
ADJUSTING THE SOUND OF THE SYSTEM  
Once you have checked the systems 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 down all the way. Set any tone controls to their flat or defeated positions.  
This includes the loudness control.  
page 48  
Step 2 Turn the level controls of the amplifier to their minimum positions.  
Step 3 Choose music with high dynamic content that you like, that you are familiar with and will be most often used  
in the system.  
Step 4 Turn the unit 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 distortion, if any distortion is au  
dible, reduce the volume of the source unit until you have an undistorted output. Leave the volume control at this  
position during your system tuning.  
Step 5 While listening to your chosen dynamic music, turn up the level control corresponding to the midrange 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.  
Step 6 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.  
Step 7 Fine tune the crossover setting and output level between the midrange and tweeters. Refer to the internal crossover  
configuration section of this manual for detailed instructions.  
Step 8 Repeat Steps 5-7 for the rear speakers. If you do not have rear speakers continue to Step 10.  
Step 9 Set levels between the 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 crossover setting and output levels 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 match  
the output of the woofer to match the sonic requirements of the system.  
Step 12 Enjoy your ass kickinORION sound system.  
page 49  
TROUBLE SHOOTING TIPS  
SYMPTOM  
PROBABLE CAUSE  
ACTION TO TAKE  
No output  
Low or no remote turn-on input  
Check remote turn-on voltage output at amplifier and  
fix as needed  
Fuse blown  
Check power wire integrity and check for speaker shorts.  
Fix as needed and replace fuse  
Power wires not connected  
Check power wire and ground connections and fix or  
replace as needed  
Audio input not connected  
Speaker wires not connected  
Speakers are blown  
Check RCA connections and fix or replace as needed  
Check speaker wires and fix or replace as needed  
Check system with known working speaker and fix or  
replace speakers as needed  
Audio cycles on  
and off  
Thermal protection engages  
when amplifier  
Make sure there is proper ventilation for amplifier and improve  
Heatsink ventilation as needed  
temperature exceeds 90°C (190°F)  
Loose or poor audio input  
Loose power connections  
Check RCA connections and fix or replace as needed  
Check power wire and ground connections and fix or replace  
as needed  
Distorted output  
Amplifier level sensitivity set too  
high. Exceeding maximum  
capability of amplifier  
Readjust gain. Refer to Adjusting the sound of the system  
section of this manual for detailed instructions  
Impedance load to amplifier  
too low.  
Check speaker impedance load, if below 2stereo or 4mono  
Rewire speakers to achieve a higher impedance  
Shorted speaker wires  
Check speaker wires connections and fix or replace as needed  
page 50  
SYMPTOM  
PROBABLE CAUSE  
ACTION TO TAKE  
Distorted output  
continued...  
Speaker not connected to properly  
Check speaker wiring and fix or replace as needed. Refer to the amplifier  
speaker connections section of this manual for detailed instructions  
Internal crossover not set properly  
Speakers are blown  
Readjust crossovers. Refer to the internal crossover section of this  
for speakers manual for detailed instructions  
Check system with know working speakers and fix or replace as needed  
Check speaker polarity and fix as needed  
Poor bass response  
Speakers wired with wrong  
polarity causing cancellation at low frequency  
Crossover set incorrectly  
Reset crossovers. Refer to the internal crossover  
section of this manual for detailed instructions  
Impedance load at amplifier  
is too low.  
Check speaker impedance load, if below 2stereo or 4mono  
Rewire speakers to achieve a higher impedance  
Battery fuse blowing  
Short in power wire or incorrect  
power connections.  
Check power and ground connections and fix or repair as needed  
Replace with proper fuse size  
Fuse used is smaller than  
recommended  
Too much current being drawn  
Too much current being drawn  
Check speaker impedance load, if below 2stereo or 4mono  
rewire speakers to achieve a high impedance  
Check power and ground connections and fix or repair as needed  
Amplifier fuse  
blowing  
Check speaker impedance load, if below 2stereo or 4mono  
rewire speakers to achieve a high impedance and replace with  
recommended size fuse  
Check power and ground connections and fix or repair as needed  
Replace with proper fuse size  
Fuse used is smaller than  
recommended  
Impedance load at amplifier  
too low.  
Check speaker impedance load, if below 2stereo or 4mono  
Rewire speakers to achieve a higher impedance  
Speaker is blown with shorted  
outputs  
Check system with know working speakers and fix or replace  
as needed  
page 51  
AUTOSOUND 2000 TROUBLESHOOTING TIPS  
QUICK CHECK FOR TROUBLESHOOTING CAR AUDIO SYSTEMS  
Preface:  
All audio systems exhibit noise; however, if the level of noise is low enough, and the signal level high enough, noise should not be a problem.  
This means that it is very important that the signal level throughout the system be optimized BEFORE dealing with your noise problem. Using a  
scope (or a small portable amplifier) and Track 99 (1kHz at all high bits) of Autosound 2000s CD #101, or tracks 24 through 29 of Autosound 200s  
CD #102, adjust the system so that when the maximum usable signal level of the deck is fed into the system, all the preamp level components clip  
at the same time. However, we recommend up to as much as a 3:1 voltage overlap with the power amplifiers; i.e. an amplifier with a 2 volt mini-  
mum sensitivity can be driven by up to 6 volts of signal.  
Noise Overview:  
Car audio electrical accessories are notorious for interfering with car audio systems. The interference commonly arises from three areas:  
1) Power line noise (5% ), which can be attenuated with in-line noise filters,  
2) Inadequate power supply isolation (45% ), which can be cured with transformer signal coupling, additional isolated power  
supplies, or changing out components, or  
3) Inductive interference (45% ) - Including loop area inductive noise picked up by the signal cables - which can be remedied by relocating or  
rewiring components, rerouting signal cables, or using twisted cable or balanced transmission systems.  
AUTOSOUND 2000 1-2-3 METHOD OF LOGICAL TROUBLESHOOTING  
I.  
MUTE THE AMP(S). Insert a muting plug (shorted male RCA connector) into each amplifier channel. Turn up the amp sensitivity. Start the car  
and turn on the headlights, air conditioning, brake lights, etc. Listen for noise in each speaker. Be very picky here!  
A. If still noisy, substitute a small test speaker with short leads for the speakers, crossovers, and speaker leads in the car. If still noisy,  
substitute an isolated power supply (120 VAC to 13.8 VDC bench supply or a small motorcycle battery) for the cars alternator. If the  
amplifier is noisy with the test speaker, you have a BAD amp. Send it in. It really doesnt matter if it is quiet or noisy while running on  
the isolated supply because you have a BAD amp. Send it in for repair and if it was quiet on the isolated supply, indicate so on the re  
pair tag.  
page 52  
B. If your muted amp is quiet, youve just joined 99.5% of car audio. Amps are usually very clean and do NOT pick up unwanted noise!  
Continue on to Step II.  
II. DECK TO AMP. Using a new set of signal cables, connect one channel from the output of the deck directly into one channel of your clean  
amp. Run the cables outside the car and as far away as possible from the metal of the car. (For noise purposes, consider a 2" thick cushion of  
electromagnetic energy emanating from every metal surface in the car.)  
A. If still noisy, congratulations, in all probability your equalizer, electronic crossover, DSP whatchamacallit, are just fine. This means that  
you cant get your deck playing quiet with your amp, right? go to Step III.  
B. If all is quiet, congratulations, in all probability your deck and amplifier(s) are fine - you obviously have a problem with your equalizer,  
electronic crossover, DSP, etc. Skip on down to Time for the Processors.”  
III. MOVE THE DECK. If youre at this step, it is time to turn your system into an amplified deckby temporarily relocating the deck right  
ON-TOP of the clean amplifier. Then using very, very short signal cables, connect the output of the deck into the input of the amp and test  
for noise. Play a zero bit track - silence - and make sure all is completely quiet.  
A. If still noisy, youre in a heap of trouble, We suggest that you try another deck and give us a call so that we can put your name into the  
record books. Its a bad car audio day for you.  
B. If the deck is quiet, then congratulations, youre on your way to a successful installation. It is now time to slowly, methodically, reinstall  
the deck back into its final position. Test for noise each step of the way. If the noise returns, suspect the signal cables, forget shielding  
because it will have only a very, minimal effect within the audio band. We highly suggest using twisted pair cables or a balanced  
transmission system for cable induced noise.  
TIME FOR PROCESSORS:  
By the end of step III, you should have the deck playing quietly with the amp, with the quiet cables quietly routed. so its time to add the signal  
processors - one at a time - back into the system. Simply repeat steps II and III with the equalizer, then the electronic crossover, etc. However, be-  
fore MOVING-THE-SIGNAL-PROCESSORS to the amplifier, we highly suggest that you supply power to the noisy processor from an isolated power  
supply rather than the cars +12 volt DC and chassis ground. Make sure to also connect the turn-on lead to the isolated power supply. If the proces-  
sor is now quiet , then it is highly probable that the component has inadequate isolation. Solutions include, changing components or perma-  
nently adding an external isolated power supply (Call Autosound 2000 at 209-465-3450 for info on isolated power supplies).  
page 53  
SUMMATION:  
During the design stage of your vehicles, try to avoid using extra batteries and high output alternators. Extra batteries are nothing but loads as  
soon as the engine is started and high output alternators usually make more noise than stock alternators. Also, extra batteries installed in the  
trunk of a car will ALWAYS force extra ripple current to flow over the car.  
Install Transient Storage as close to the power supply input of your amplifier as possible. The big caps will feed the switching power supplies of  
your amps and minimize the inductive losses in your power wiring. Plus, they will help your peak system response.  
In problem cases, we highly recommend the use of twisted pair cable rather than coaxial cable for RCA leads. This practice will greatly minimize  
cable induced noise - especially in four channel amps!  
Dont forget that your system is only as good as its worst component. Do NOT-use components with inadequate power supply isolation or you  
will be asking for problems.  
The best electrical ground on a car is the CHASSIS of the car. Do NOT-run ground leads up to the case of the alternator or the negative battery  
post. Keep ALL-ground leads as short as possible.  
With properly isolated components, it does NOT matter where the component is grounded. With inadequately isolated components, it matters!  
With poorly isolated components, different grounds can cause different noises.  
The deck is the signal reference ground for the entire sound system. The deck usually has THREE connections to the cars chassis: The black ground  
lead, the base of the antenna, and the metal-to-metal bond between the case of the deck and the chassis of the car. With three grounds, there is  
usually NO cause to worry about the ground of a deck.  
Amplifiers are usually designed with adequate power supply isolation. This means that it should not matter where a deck is grounded. (Decks are  
grounded three times and amps float. This is car audio!)  
The more components installed on a signal path, the more chances for noise to enter a system. The more electrical accessories on a car, the more  
noise will be produced by the alternator.  
This information was compiled from more than 20 years of working in car audio. If you would like more information on this topic, or any other  
technical aspect of car audio, please call 209-465-3450 and ask for a subscription to Autosound 2000 Tech Briefs - the monthly magazine for the  
technically inclined.  
page 54  
page 55  
HIGH PERFORMANCE CAR AUDIO  
AMPLIFIERS, SIGNAL PROCESSORS  
AND LOUDSPEAKERS  
HIGH PERFORMANCE CAR AUDIO  
©1998OrionIndustries,Incorporated  
9235S. McKemyStreet , Tempe, Arizona 85284  
Phone:480.705.5600Fax:480.705.5788  
OneoftheADSTfamilyofcompanies.  
Part #8900-0113  
Rev5/99  

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