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®®
INSTALLATION
& OPERATION
HIGH
PERFORMANCE
PARAMETRIC
EQUALIZER
Dear Customer,
Congratulations on your purchase of the world's finest brand of car audio signalprocessors. At Rockford Fosgate we are committed to musical reproduction at its best,and we are pleased you chose our product. Through years of engineering expertise, handcraftsmanship and critical testing procedures, we have created a wide range of productsthat reproduce music with all the clarity and richness you deserve.
For maximum performance we recommend you have your new Rockford Fosgateproduct installed by an Authorized Rockford Fosgate Dealer, as we provide specializedtraining through Rockford Technical Training Institute (RTTI). Please read yourwarranty and retain your receipt and original carton for possible future use.
To add the finishing touch to your new Rockford Fosgate image order your Rockfordaccessories, which include everything from T-shirts and jackets to hats and sunglasses.
To get a free brochure on Rockford Fosgate products and Rockford accessories, in theU.S. call 602-967-3565 or FAX 602-967-8132. For all other countries, call +001-602-967-3565 or FAX +001-602-967-8132.
The serial number can be found on the outside of the box. Please record it inthe space provided below as your permanent record. This will serve asverification of your factory warranty and may become useful in recovering yourequipment if it is ever stolen.
Serial Number: ____________________
Model Number: ____________________
If, after reading your manual, you still have questions regarding this product,we recommend that you see your Rockford Fosgate dealer. If you need furtherassistance, you can call us direct at 1-800-795-2385. Be sure to have your serialnumber, model number and date of purchase available when you call.
PRACTICE SAFE SOUND™CONTINUOUS EXPOSURE TO SOUND PRESSURE LEVELS OVER
100dB MAY CAUSE PERMANENT HEARING LOSS. HIGH POW-
ERED AUTO SOUND SYSTEMS MAY PRODUCE SOUND PRES-
SURE LEVELS WELL OVER 130dB. USE COMMON SENSE AND
PRACTICE SAFE SOUND.
TA B L E O F CO N T E N T S
Introduction ............................................................................................1
Accessory Pack .......................................................................................1
Technical Design Features ......................................................................2
Design Features .......................................................................................3
Installation Considerations ......................................................................5
Mounting Location ..................................................................................6
Wiring the System ...................................................................................6
OEQ2 Installation ....................................................................................8
OEQ2 Operation ...................................................................................13
System Diagrams...................................................................................16
Rockford Fosgate Accessories ................................................................20
Troubleshooting ....................................................................................21
Specifications ........................................................................................24
Warranty Information ............................................................................25
International Information.......................................................................26
Sections markedTROUBLESHOOTING
include recommendationsfor curing
installation problems
Sections markedINSTALLATION
include “slam dunk”wiring connections
INSTALLATION
® ® TROUBLE-SHOOTING
Sections markedADVANCED OPERATION
include in-depthtechnical information
advanced
Operation
Welcome to Rockford Fosgate! This manual is designed to provideinformation for the owner, salesperson and installer. For those of you whowant quick information on how to install this product, please turn to theInstallation Section of this manual or refer to the icons listed below. Otherinformation can be located by using the Table of Contents. We, atRockford Fosgate, have worked very hard to make sure all the informationin this manual is current. But, as we are constantly finding new ways toimprove our product, this information is subject to change without notice.
G E T T I N G S TA R T E D
– 1 –
I N T R O D U C T I O N
The OEQ2 is an octave equalizer used to help compensate foracoustical inaccuracies common in the automobile environment.The OEQ2 is a stereo equalizer with ten bands of frequency adjust-ment spaced at octave intervals. Each band can accommodate up to12dB of boost or cut to overcome dips and peaks in the responsecurve. Frequency Warp controls shift center frequencies half anoctave up and half an octave down for precise adjustment. Input andoutput gains are utilized for proper gain settings while a pair of LEDmonitors track input levels. The high output voltage available fromthe OEQ2 allows it to also be used as a line driver, and its low outputimpedance supports the connection of several amplifiers withoutsignal degradation. The OEQ2 is a versatile, high performanceequalizer with convenient features that will fine tune any system andhelp solve response problems.
ACCESSORY PACK
Installation and Operation Manual(4) Mounting Screws(1) Power Connector
TECHNICAL DESIGN FEATURES
High-Q FiltersHi-Q filters are utilized for adjusting narrow frequency bands in anequalizer. Filter “Q” or Quality Factor is a measure of the “narrow-ness” of the filter response. Using Low-Q (wide) filters in an equalizerallows adjustments made on one control to strongly effect neighbor-ing frequencies during boost or cut. Hi-Q filters avoid problems likeadjacent band overlap which minimize the time needed to removefrequency response errors.
THE RESULT: Avoids adjacent band overlap through precise filtering.
Frequency WarpThe Frequency Warp controls shift the center frequency of each bandhigher or lower in frequency (up to 1/2 octave). This enables theequalizer to pinpoint “dips” and “peaks” in the response curve. Thefrequency warp is useful when using an RTA (Real Time Analyzer) tofind and correct problems located between the equalizer's centerfrequencies.
THE RESULT: Easier to equalize response errors by pinpointingproblem frequencies.
Balanced Line InputsUsing the BLT (Balanced Line Transmitter) provides the last word inachievable rejection of noise induced in the cable between thesource and the signal processor. The differential input circuitry usedin the balanced input system rejects whatever signals are common toboth of the shielded, twisted pair conductors. Balanced line isuniversally used in concert installations where the stage and mixingconsoles are hundreds of feet apart. Long signal cables and electri-cally-noisy environments make signal integrity and noise rejectionan extremely difficult challenge.
THE RESULT: Quiet transmission of audio from source to signalprocessor.
– 2 –
DESIGN FEATURES
– 3 –
6
RIGHT LEFT
LEFTIN
RIGHTIN
GND B+ REMBAL INRCABAL
BYPASSENGAGE
1 4 3 2 12
6
RIGHT LEFT
7
BAL OUT
1. RCA Input Jacks – The industry standard RCA jacks provide easyconnections for signal level input. They are gold-plated to resist thesignal degradation caused by corrosion.
2. Balanced Line Input – This input will allow the optional BalancedLine Transmitter to be used for better noise rejection.
3. Signal Input Switch– This switch allows selection of either RCA orBalanced Line inputs.
4. Engage/Bypass Switch – This switch enables the OEQ2 to process thesignal or bypass the Boost/Cut and Frequency Warp controls for a“dry” output.
5. Input Sensitivity Controls – The input sensitivity controls are presetfor 500mV which will match the output of most source units. Theycan be adjusted to match input levels ranging from 500mV to 9.3V.
6. RCA Output Jacks – The RCA Output Jacks provide a parallel outputand are used to connect the signal to the next component's inputjacks. They are gold-plated to resist the signal degradation caused bycorrosion.
7. Balanced Line Output – The balanced output allows a balanced linecable to be used between the output of the OEQ2 and the input of thenext component to provide better noise rejection.
– 4 –
8. Output Level Attenuators – The Output Level Attenuators areused to cut the output level for matching the input of the amplifier.They can be adjusted to levels ranging from a minimum ratio of1:0 (no output) to a maximum ratio of 1:1.
9. Boost/Cut Controls – These controls provide up to 12dB of boostor cut to the selected frequency.
10. Frequency Warp Controls – These controls provide up to anoctave range (1/2 octave up and 1/2 octave down) from the centerfrequency to pinpoint “dips” and “peaks”.
11. LED Level Indicators – The level indicators monitor the input levelof the OEQ2. The indicators utilize green, amber and red LEDs torepresent low, high and maximum signal level.
12. Power Connector – The power connector provides a convenientconnection for ground, power and remote. The connector uses“screw lock” terminals to secure the power wires and is remov-able for quick disconnects.
13. B+ Fuse – The B+ fuse protects the power supply and battery fromshort circuits and power failures.
14. DGND/AGND Jumper – This jumper is used for troubleshootingsystems which may exhibit noise due to ground loops or lack ofground potential.
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– 5 –
INSTALLATION CONSIDERATIONS
This section focuses on some of the vehicle considerations for installingyour new OEQ2. Pre-planning your system layout and best wiring routeswill save installation time. When deciding how to lay out your newsystem, be sure that each component will be easily accessible for makingadjustments.
Before beginning any installation, be sure to follow these simple rules:
1. Be sure to carefully read and understand the instructions beforeattempting to install the OEQ2.
2. For safety, disconnect the negative lead from the battery prior tobeginning the installation.
3. For easier assembly, we suggest you run all wires prior to mountingyour OEQ2 in place.
4. Route all of the RCA cables close together and away from any highcurrent wires.
5. Use high quality connectors for a reliable installation and to mini-mize signal or power loss.
6. Think before you drill! Be careful not to cut or drill into gas tanks, fuellines, brake or hydraulic lines, vacuum lines or electrical wiring whenworking on any vehicle.
7. Never run wires underneath the vehicle. Running the wires inside thevehicle provides the best protection.
8. Avoid running wires over or through sharp edges. Use rubber orplastic grommets to protect any wires routed through metal, espe-cially the firewall.
9. ALWAYS protect the battery and electrical system from damage withproper fusing. Install the appropriate fuseholder and fuse on the+12V power wire within 18” (45.7 cm) of the battery terminal.
10. When grounding to the chassis of the vehicle, scrape all paint fromthe metal to ensure a good, clean ground connection. Groundingconnections should be as short as possible and always be connectedto metal that is welded to the main body, or chassis, of the vehicle.
The following is a list of tools you will need for installing the OEQ2
Red power wire Wire strippersBlue remote turn-on wire Wire cuttersBlack grounding wire VoltmeterElectric hand drill w/assorted bits Jeweler's slotted screwdriverBattery post wrench
MOUNTING LOCATION
The mounting location for the OEQ2 should allow easy access to thecontrols for making necessary adjustments. The OEQ2 will most likely beadjusted only at the time of installation and will not need furtheradjustment unless changes to the audio system are performed. To ensureoptimum performance, care should be taken when mounting the equal-izer in the following locations:
Engine CompartmentMounting the OEQ2 in the engine compartment will void your warranty.The only thing that should be mounted in the engine compartment is thatbig metal thing that makes the vehicle go fast.
Passenger Compartment MountingMounting the equalizer in the passenger compartment will provide easyaccess for making adjustments by ear. Select an area which is free fromexcessive dirt or dust. If mounting under the seat, be sure the OEQ2 willavoid misadjustment from driver or passenger seat movement.
Trunk MountingMounting the equalizer in the trunk will provide easy access for makingadjustments with an RTA (Real Time Analyzer) and pink noise. Select anarea which will avoid possible damage or misadjustment from loadingand unloading items such as groceries, golf clubs and packages from thetrunk.
– 6 –
WIRING THE SYSTEM
For safety, disconnect the negative lead from the car battery prior tobeginning the installation.
1. Wire the Power ConnectorThe B+ lead should be connected to a source of non-switched 12 voltsDC. Prepare a length of cable from the constant +12V by stripping 3/8"of insulation from the end of the wire. Insert the bared wire into the B+terminal of the power connector and fasten the screw.
NOTE: The B+ lead of the audio system MUST be fused 18" or less fromthe vehicle's battery. Install a fuseholder, along with the necessaryfuse, under the hood. Connections should be water tight.
The REM lead should be connected to the remote turn-on or powerantenna output from the source unit. Prepare a length of cable from thesource of switched voltage by stripping 3/8" of insulation from the end
of the wire. Insert the bared wire into the REM terminal of the powerconnector and fasten the screw. Total current consumption throughthis lead is negligible.
The GND lead should be connected to the chassis ground of thevehicle. Prepare a length of cable (approximately 12" long) to be usedfor the ground lead by stripping 3/8" of insulation from each end.Insert one end of bared wire into the GND terminal of the powerconnector and fasten the screw. Prepare the chassis ground byscraping any paint from the metal surface and thoroughly clean thearea of all dirt and grease. Strip the other end of the wire and attacha ring connector. Fasten the cable to the chassis using a non-anodizedscrew and star washer.
2. Connect the Source InputsTo accept RCA inputs, the signal input switch should be OUT.Connect the front RCA outputs from the source unit to the “LEFT IN”and “RIGHT IN” connectors on the OEQ2.
To accept Balanced Line Inputs, the signal input switch should be IN.Connect the front RCA outputs from the source unit to the inputs onthe BLT. Connect the balanced line cable from the BLT to the “BALIN” connector on the OEQ2.
3. Connect the OutputsConnect the appropriate outputs from the OEQ2 to the correspondinginputs on the amplifier(s) or signal processor(s). For greater systemflexibility, all outputs from the OEQ2 are configured in parallel (referto the System Diagrams section of this manual for examples).
4. Adjust System LevelsSet the gain controls on the amplifier(s) as well as the input gain andoutput attenuators on the OEQ2 to minimum. Adjust all Boost/Cutand Frequency Warp controls to their center position. Adjust 1kHzBoost/Cut to maximum. Using a 1kHz test tone recorded at ”0dB” or“all bits high,” adjust the source unit for its maximum unclippedoutput. Adjust the input sensitivity on the OEQ2 until the first red LEDon the OEQ2 starts to illuminate. Stop the test tone and do not readjustthe volume control. Readjust 1kHz on Boost/Cut to its center position.Play a musical track with high dynamic content and adjust the outputattenuators on the OEQ2 to the desired output level (be sure Left andRight channels are matched). Typically, the amplifier gain controlswill be left at minimum for optimum signal-to-noise ratio. For moreinformation on adjusting system levels, refer to the Installationsection of this manual.
– 7 –
– 8 –
OEQ2 INSTALLATION INSTALLATION
® ®
LEFTIN
RIGHTIN
BAL INRCABAL
BYPASSENGAGE
Less than 18"
– +
GND B+ REM
Power Connections
Connect to B+ of batterywith a 2 amp fuse.
Connect to chassisground of vehicle.
Connect to remoteturn-on lead of
source unit.
LEFTIN
RIGHTIN
BAL INRCABAL
BYPASSENGAGE
GND B+ REM
RCAInput
RCA Input Connections
• RCA Outputs from source connect to LEFT IN and RIGHT IN of OEQ2• Signal Input Switch is out for RCA Input
NOTE: DO NOT use RCA and Balanced Line Inputs simultaneously.
– 9 –
BLT Input Connections
• RCA Outputs from source connect to input of Balanced Line Transmitter• Balanced Line Cable from BLT connects to BAL IN of OEQ2• Signal Input Switch is pressed in for balanced line input
NOTE: DO NOT use RCA and Balanced Line Inputs simultaneously.
LEFTIN
RIGHTIN
BAL INRCABAL
BYPASSENGAGE
GND B+ REM
BALANCED LINE TRANSMITTER
INPUTL R
BALANCED LINEOUTPUT
®®
LED
+ L Signal
Shield
+ R Signal
– R Signal – L Signal
–15V+15V
RCA Input
INSTALLATION
® ®
– 10 –
INSTALLATION
® ®RCA Output Connections
BAL OUT RIGHT LEFTLEFTRIGHT
BAL OUTRIGHT LEFT RIGHT LEFT
+ L Signal
Shield
+ R Signal
– R Signal – L Signal
NCNC
• Balanced Output connects to balanced input of next component
Balanced Output Connections
• RCA Outputs are configured in parallel• Use either RCA Output for input of next component
Level Setting the OEQ2
– 11 –
1. Set the Gain Controls on the amplifier(s) as well as the input gain and
output attenuators on the OEQ2 to minimum.
2. Adjust Boost/Cut and Frequency Warp Controls to their center position
3. Adjust 1k on OEQ2 to maximum boost (+12dB)
4. CD Software used to set levels is a test tone of 1kHz at “0dB” or
“All Bits High”
5. Adjust Source Unit to 3/4 volume (or maximum unclipped output)
6. Adjust Input Sensitivity on the OEQ2 until the first red LED illuminates
7. Stop Test Tone and do not readjust the volume control
8. Adjust 1k on OEQ2 back to its center position
9. Play Musical Track with high dynamic content
10. Adjust Output Attenuators on the OEQ2 to the desired output level
11. Leave Amplifier Gains at minimum for optimum signal-to-noise ratio
AUD SEL
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High Performance Parametric Equalizer
advanced
Operation
1kHz Test Tone @ “0dB”
Level Setting the OEQ2 with a BLT
– 12 –
advanced
Operation
+ –
9.0VAC
BALANCED LINE TRANSMITTER
®®
1kHz Test Tone @ “0dB”
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High Performance Parametric Equalizer
L R
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1. Set the Gain Controls on the amplifier(s) as well as the input gain and
output attenuators on the OEQ2 and BLT to minimum.
2. Adjust Boost/Cut and Frequency Warp Controls to their center position
3. Adjust 1k on OEQ2 to maximum boost (+12dB)
4. CD Software used to set levels is a test tone of 1kHz at “0dB” or
“All Bits High”
5. Adjust Source Unit to 3/4 volume (or maximum unclipped output)
6. Remove BLT Cover to access gain pots
7. Adjust BLT Gain to 9.0 VRMS using an AC Voltmeter
8. Adjust Input Sensitivity on the OEQ2 until the first red LED illuminates
9. Stop Test Tone and do not readjust the volume control
10. Adjust 1k on OEQ2 back to its center position
11. Play Musical Track with high dynamic content
12. Adjust Output Attenuators on the OEQ2 to the desired output level
13. Leave Amplifier Gains at minimum for optimum signal-to-noise ratio
– 13 –
OEQ2 OPERATION
Boost/Cut ControlThe Boost/Cut controls are used to increase or reduce emphasis in a specific
octave of music. Each control provides up to 12dB of boost or cut to the
selected frequency. The following graph shows the effect of each control at
the full boost (+12dB) and full cut (–12dB) positions.
Hz
• Graph Illustrates each Boost/Cut control adjusted to –12dB,0dB, and +12dB
dBr
Minimum
–12
+12
–12dB
0
–12
+120
Maximum
–12
+12
+12dB
Center
+0dB
0
Frequency Warp ControlThe Frequency Warp controls are used to fine adjust the center frequency of
the Boost/Cut controls. Each Warp control allows for a range of 1/2 octave
above and below the center frequency. The following graph illustrates the
operating range of the 1kHz Warp control at its minus (–), center (•), and plus
(+) positions.
– 14 –
• Graph Illustrates Frequency Warp of 1kHz adjusted to Minus, Center,and Plus
Plus
–
+
(1.5kHz)
0
–
+0Minus
–
+
(750Hz)
Center
(1kHz)
0
Engage/Bypass SwitchThe Engage/Bypass Switch is useful in system tuning when comparing thedifferences between an equalized and non-equalized system. With theswitch in the IN position, all EQ functions are engaged and can be heard.With the switch in the OUT position, all EQ functions except the input gainsand output attenuators are bypassed from the signal path. In Bypass mode, theOEQ2 can be used at the front of the system as a line driver. The signal fromthe source unit is amplified with the OEQ2 input gains. This higher voltagewill help overcome noise which may be picked up in the cable. The highervoltage results in a better signal-to-noise ratio at the amplifier's input.
• OEQ2 Bypass Mode allows all functions, except Input Gains and OutputAttenuators, to be bypassed
• An Alternative Line Driver can be made with the OEQ2 by using it in Bypassmode and placing it near the front of the signal chain
– 15 –
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DGNDCHSAGND
• OEQ2 Engage Mode allows all EQ functions to be heard
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DGNDCHSAGND
Engage
Bypass
Equalized Output
Full Range Output
20Hz 20kHz
20Hz 20kHz
SYSTEM DIAGRAMS
RCA Input/RCA Output
– 16 –
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®®
High Performance Parametric Equalizer
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P O W E R
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RCA Input
OEQ2 located infront of vehicle
RCA Output
Tweeter
Midrange
Tweeter
Midrange
RCA Input/Balanced Output
– 17 –
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High Performance Parametric Equalizer
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RCA Input
OEQ2 located infront of vehicle
BalancedOutput
Tweeter
Midrange
Tweeter
Midrange
Balanced Input/RCA Output
– 18 –
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High Performance Parametric Equalizer
BALANCED LINE TRANSMITTER
®®
L R
LR
®®
P O W E R
250®
®®
P O W E R
250® m
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Optional BalancedLine Transmitter
BalancedOutput
OEQ2 located inrear of vehicle
RCA Output
Tweeter
MidrangeWoofers
– 19 –
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0
+12
-12
0
+12
-12
0
+12
-12
0
+12
-12
L
E
F
TR
I
G HT
®®
High Performance Parametric Equalizer
®
®®
4
BALANCED LINE TRANSMITTER
®®
L R
LR
®®
P O W E R
250®
®®
P O W E R
250® m
AUD SEL
1 2 3 4 5 6
RDMRPTSCAN PAUSED.SCN DIM
AMFMCh
RPTLD RDMDISC
ST P.SCN LOUDDSPL
R
CLOCK ILLUM
PWR
AUTO
® ®
VOL TUNE
Balanced Input/RCA & Balanced Output
OEQ2 located inrear of vehicle
Optional BalancedLine Transmitter
RCA OutputRCA Output
Balanced Input
Woofers Midbass
Tweeter
Midrange
BalancedOutput
ROCKFORD FOSGATE ACCESSORIES
Balanced Line Transmitter (FG-BLT)The Balanced Line Transmitter converts signal RCA cables from thesource unit to balanced signals. The BLT improves sound quality in thesystem by eliminating noises generated by vehicle electrical systems.The BLT is available for Rockford Fosgate products that offer abalanced input.
®
Extra Balanced Cables (RP4205)Additional 16' Balanced Line cables are available from the Connect-ing Punch line of Accessories.
– 20 –
®
ATTENTION: We recommend your Authorized Rockford Fosgate Dealerinstall your new accessory.
LEFTIN
RIGHTIN
GND B+ REMBAL INRCABAL
BYPASSENGAGE
BALANCED LINE TRANSMITTER
®®
NOISE
L R
LR
AUD SEL
1 2 3 4 5 6
RDMRPTSCAN PAUSED.SCN DIM
AMFMCh
RPTLD RDMDISC
ST P.SCN LOUDDSPL
R
CLOCK ILLUM
PWR
AUTO
® ®
VOL TUNE
TROUBLESHOOTING
Symptom Diagnosis Remedy
– 21 –
OEQ2 does notturn on (PowerLED is off)
Check the alternator, bat-tery, fuse and wiring andrepair as necessary. If thevoltage is above 15.5 volts,have the electrical systeminspected by an authorizedcar service center.
Check the alternator, bat-tery, fuse, and wiring andrepair as necessary. If thevoltage is above 15.5 volts,have the electrical systeminspected by an authorizedcar service center.
Remove cover from OEQ2and replace with 2 Amp fuse.
Check wiring and repair asnecessary.
Check connections, substi-tute with known workingsource and cables, and re-pair or replace as necessary.
Check connections, substi-tute with known workingBLT cables and repair or re-place as necessary.
Readjust output attenuatorsas necessary.
Voltage applied to theREM terminal of theOEQ2 is not between 5and 15.5 volts.
Voltage to the B+ termi-nal of the OEQ2 is notbetween 5 and 16 voltsor there is no voltagepresent.
Internal B+ fuse is blown
OEQ2 is not properlygrounded.
OEQ2 has no sound(Power LED is on)
RCA Input from sourceunit is not connected ornot functioning properly.
When using the BLT,Balanced Line Input fromBLT is not connected ornot functioning properly.
Output attenuators are atminimum.
TROUBLE-SHOOTING
– 22 –
Symptom Diagnosis Remedy
Turn-On Pop Disconnect input signal toOEQ2 and turn OEQ2 on andoff. If noise is eliminated, con-nect REM lead of OEQ2 toremote turn-on wire with adelay module.
Readjust input gain of OEQ2as necessary. Refer to Installa-tion section of this manual forproper level adjustment.
Readjust output attenuators asnecessary. Refer to Installa-tion section of this manual forproper level adjustment.
Check system with knownworking source and repair orreplace original source asneeded.
Replace cables with knowngood cables and repair or re-place as necessary.
Check wiring and repair asnecessary or connect groundto different location.
Check connections and runthe RCA cables on a differentroute away from sources ofhigh current. If radiated noisepersists, use a BLT.
Voltage spike from out-put of preceding com-ponent is entering OEQ2through input signal
Input gains are incor-rectly set.
Output attenuators setto minimum or incor-rectly set.
Source unit output toolow or source unit hasno output.
RCAs or BLT cable be-tween source and OEQ2have bad or brokenground shield.
Source unit is not prop-erly grounded.
Noise is radiating intoRCA signal cable.
Distorted or LowOutput
TROUBLE-SHOOTING
Several LEDsilluminating withno music playing
Engine Noise
Symptom Diagnosis Remedy
Check connections and bypassadditional components (cross-overs and preamps) betweenthe source unit and the ampli-fier. Connect one componentat a time using muting plugs(RCA signal shorted to shield)at the input of each added com-ponent to determine the cul-prit. Repair or replace compo-nents as necessary.
Check ground connectionsand connect amplifiers, signalprocessors, and other compo-nents to a central location ortry a different grounding pointon the chassis.
Use only RCA or BLT input atone time.
Remove the cover from theOEQ2 and locate jumper J1,labeled DGND and AGND,next to the transformer (rounddonut with wires). This jumperapplies ground to the chassisof the OEQ2. There are threepossible connections:
A. No Jumper Connection –no ground applied to thechassis
B. DGND – power supplyground applied to chassis
C. AGND – RCA shield ap-plied to chassis
Experiment with these jumperconfiguration options until areduction in noise is observed.
Select the Signal Input Switchfor “BAL” input.
– 23 –
Engine Noise
• If noise persists, see your Authorized Rockford Fosgate Dealer.
TROUBLE-SHOOTING
Bad component in thesignal chain.
Multiple grounds in theaudio system.
RCA and BLT inputs areutilized simultaneously.
Noise is entering thesystem via a possibleground loop.
Jumper PlacementDiagrams
Engine Noise(BLT Input)
Signal Input switch notselected for BLT input.
•••
•••
•••
A.DGNDChassAGND
DGNDChassAGND
DGNDChassAGND
C.
B.
Operating Voltage +10V to +16VDCCurrent Consumption 500mAB+ Fuse Size (internal) 2 AmpFuse Type AGC
Frequency Response 20-20kHz ±0.1dBSignal-to-Noise Ratio >98dBADistortion (THD + Noise) 0.02%Input Impedance 20kΩOutput Impedance 51ΩInput Voltage 9.3 VRMS maxOutput Voltage 9.3 VRMS maxNumber of Channels 2Number of Inputs 2 RCA or 1 BalancedNumber of Outputs 4 RCA and 1 Balanced (all paralleled)Octave Centers 31, 62, 125, 250, 500, 1k, 2k, 4k, 8k, 16kLevel Adjustment Range ±12dBFrequency Warp Range ±1/2 octave (from center frequency)
Dimensions 6"W x 73⁄4"L x 11⁄8"H(without mounting flange) (15.2cm x 19.7cm x 2.9cm)
Dimensions 7"W x 73⁄4"L x 11⁄8"H(with mounting flange) (17.8cm x 19.7cm x 2.9cm)
– 24 –
SP E C I F I C AT I O N S
Specifications are subject to change without notice.
Rockford Fosgate warrants all electronics to the original consumer/purchaser to be freefrom defects in materials or workmanship for a period of three (3) years. We will coverparts and labor provided the product was purchased from an Authorized RockfordFosgate Dealer. This warranty does not apply to any product on which the seals and/or serial number have been broken, removed, tampered with, defaced or altered in anymanner. This warranty only applies to the original consumer/purchaser and is nottransferable.
Electronics found to be defective during the warranty period will be repaired orreplaced at Rockford Fosgate’s discretion. Repaired or replaced electronics will becovered by the balance of the original warranty period only. Rockford Fosgate shallnot be responsible for any incidental or consequential damages resulting from a defectin electronics. Some states do not allow the exclusion or limitation of incidental orconsequential damages, so the previous limitation may not be applicable.
The warranty does not cover any appearance item, any cost or expense related to theremoval or reinstallation of the product, any accessory used in conjunction with theproduct, damage to the product resulting from alteration, accident, misuse or abuse,or improper installation. This warranty does not apply if the parts or labor, which wouldotherwise be provided without charge under this warranty, are obtained from anysource other than Rockford Fosgate or an Authorized Rockford Fosgate Service Center.
This warranty is the only express warranty and does not create any implied warranties.Rockford Fosgate limits its obligations under any implied warranties under state lawsto a period not to exceed the written warranty period. Some states do not allowlimitation on how long an implied warranty lasts, so the above limitation may notapply. This warranty applies only to products sold in the United States of America orits possessions. For warranty outside the U.S.A., please contact the nearest AuthorizedRockford Fosgate Dealer. This warranty gives the consumer specific legal rights, andthe consumer may have other rights which vary from state to state.
A defective product must be shipped prepaid to the Authorized Rockford FosgateDealer from which the consumer purchased the product or to the Rockford Fosgatefactory in Tempe, Arizona in the original factory carton or equivalent. Any shippingloss or damage will be borne by the consumer or the consumer’s shipper. A consumerreturning a product to the factory must call (800) 669-9899 for a Return AuthorizationNumber. All shipments shall be clearly marked with the Return Authorization Numberon the outside of the shipping carton.
Ship to:Rockford CorporationWarranty Repair Department2055 E. 5th StreetTempe, AZ 85281 U.S.A.Return Authorization Number:_________________
WA R R A N T Y IN F O R M AT I O N
– 25 –
INT E RN
AT ION
AL IN
FORM
ATION
– 26 –
– 27 –
Lea detenidamente las siguientes instrucciones de instalación del producto.
INTRODUCCIÓN
El OEQ2 es un ecualizador de octava que se ha de utilizar paracompensar las inexactitudes acústicas comunes en el interior de losautomóviles. El OEQ2 es un ecualizador estereo con ajustes en diezbandas de frecuencia espaciadas en intervalos de una octava. Cadabanda puede realzar o atenuar hasta 12dB para subsanar los picos ovalles de la respuesta frecuencial. Los controles Frequency Vary lepermiten desplazar la frecuencia central de cada banda hasta enmedia octava hacia arriba o hacia abajo para un control más preciso.Las ganancias de entrada y salida se han de utilizar para un ajusteperfecto de niveles, con la ayuda de una pareja de monitores LED. ElOEQ2 es un ecualizador versatil que le ayundará a sacar el mejorrendimiento de su sistema.
CABLEADO DEL SISTEMA
Por seguridad, desconecte el cable negativo de bateria antes decomenzar la instalación.
Cableado del conectorEl terminal B+ debe ser conectado a una fuente no conmutada de 12Vcontinuous. Prepare un cable de la longitud adecuada desde la fuentede 12V+ y pele 1cm de aislante del cable en el extremo que vaya aconectar al aparato. Inserte el cable pelado en el orificio B+ delconector y asegúrelo con el tornillo.
NOTA: El terminal B+ de sistema de audio debe estar protegido conun fusible no más lejos de 45cm de la bateria. Instale un portafusiblesy el correspondiente fusible en el compartimento del motor. Lasconexiones deben ser resistentes al agua.
El terminal REM ha de conectarse al terminal remote o antena de suradio-cassette. Prepare un cable de la longitud adecuada desde lafuente y pele 1cm de aislante del cable en el extremo que vaya aconectar al aparato. Inserte el cable pelado en el orificio REM delconector y asegúrelo con el tornillo. El consumo de corriente de esteterminal es despriciable.
El terminal GND ha de conectarse al chasis del vehiculo. Prepare uncable de la longitud adecuada (mejor no más de 30cm) y pele 1cmde aislante del cable en el extremo que vaya a conectar al aparato.Inserte el cable pelado en el orificio GND del conector y asgúrelo conel tornillo. Antes de conectar a chasis elimine la pintura de lasuperficie del metal y limpie la superficie de polvo y grasa. Pele el otroextremo del cable y añádale un conector de anillo. Asegure el cableal chasis con un tornillo no anodizado.
INSTALACION DEL OEQ2
LEFTIN
RIGHTIN
BAL INRCABAL
BYPASSENGAGE
GND B+ REM
BALANCED LINE TRANSMITTER
INPUTL R
BALANCED LINEOUTPUT
®®
LED
+ L Signal
Shield
+ R Signal
– R Signal – L Signal
–15V+15V
RCA Input
– 28 –
ESPA
ÑO
L
Conexiones de entrada RCA
LEFTIN
RIGHTIN
BAL INRCABAL
BYPASSENGAGE
GND B+ REM
• Conecte las salidas RCA de su fuente de sonido a las entradas LEFTIN y RIGHT IN del OEQ2
• El conmutador SIGNAL INPUT ha de estar no pulsado cuando utiliceentradas RCA
Conexiones de entrada BLT
• Conecte las salidas RCA de su fuente a la entrada del transmisor de lineabalanceada
• Conecter el cable de salida de linea balanceada a la entrada BAL del OEQ2• El conmutado SIGNAL INPUT ha de estar pulsado cuando utilice entradas BLT
NOTA: No use las entradas RCA y BLT simultáneamente.
EntradaRCA
– 29 –
Veuillez lire les instructions suivantes pour l'installation de ce produit. Nepas les suivre pourrait causer des blessures ou endommager le véhicule.
I N T R O D U C T I O N
L'OEQ2 est un égaliseur d'octave destiné à compenser les différencesacoustiques dans l'environnement automobile. C'est un égaliseurstéréo avec 10 bandes de fréquence espacées à des intervallesréguliers d'une octave. Chaque bande peut être amplifiée ou attenuéede 12dB. Pour permettre l'ajustement fin de la courbe de réponse,chaque fréquence est variable d'une demi octave vers le haut ou versle bas vis-à-vis de la fréquence de centre. Les gains d'entrée et desortie sont réglables séparément. L'appareil est équipé d'un affichageLED indiquant le niveau d'entrée. L'OEQ2 est un égaliseur polyvalentaux caractéristiques performantes pour affiner et résoudre lesproblèmes de réponse de votre système.
CABLAGE DU SYSTÈME
Pour votre sécurité, veuillez déconnecter le pôle négatif de la batterieavant de commencer l'installation.
Câblage du connecteur d'alimentationLa position B+ doit être connectée à un positif 12 volt permanent.Coupez à bonne longueur le câble venant de la batterie et dénudezle sur environ 2 cm. Introduisez la partie dénudée dans le terminal B+du connecteur d'alimentation et serrez la vis.
ATTENTION: Le conducteur B+ du système audio doit être munid'un fusible le plus près possible de la batterie du véhicule. Installezle porte-fusible sous le capot moteur. Les connections doivent êtreétanches.
La position REM doit être connectée à la sortie antenne électrique del'appareil radio. Coupez à bonne longueur le câble venant de la radioet dénudez le sur environ 2 cm. Introduisez la partie dénudée dans leterminal REM du connecteur d'alimentation et serrez la vis. Laconsommation de courant de cette entrée est négligeable.
La position GND doit être connectée au chassis du véhicule. Coupezà bonne longueur le câble venant du chassis et dénudez le sur environ2 cm. Introduisez la partie dénudée dans le terminal GND duconnecteur d'alimentation et serrez la vis. Pour obtenir un boncontact de masse au chassis, grattez la peinture à l'endroit de laconnection et dégaissez-le ensuite. Attachez le cable avec une cosseronde, une vis galvanisée et une rondelle étoile.
INSTALLATION DU OEQ2
Connections d'entrée RCA
LEFTIN
RIGHTIN
BAL INRCABAL
BYPASSENGAGE
GND B+ REM
• Les sorties RCA de la source se branchent sur l'entrée LEFT IN(gauche) et RIGHT IN (droite) du OEQ2
• Le commutateur de signal d'entrée doit être en position sortie
Connections d'entrée BLT
LEFTIN
RIGHTIN
BAL INRCABAL
BYPASSENGAGE
GND B+ REM
BALANCED LINE TRANSMITTER
INPUTL R
BALANCED LINEOUTPUT
®®
LED
+ L Signal
Shield
+ R Signal
– R Signal – L Signal
–15V+15V
RCA Input
• Les sorties RCA de la source se branchent sur l'entrée du BLT• Le câble balancé du BLT se connecte sur l'entrée BAL IN du OEQ2• Le commutateur de signal d'entrée doit être enfoncé
ATTENTION: Ne pas brancher les entrées RCA et BLT simultanément.
EntréeRCA
– 30 –
FR
AN
ÇA
IS
Bitte lesen Sie die folgende Gebrauchsanleitung sorgfältig durch. Dies kannSie und das Produkt vor Fehlern oder sogar vor Beschädigung schützen.
EINLEITUNG
Der OEQ2 ist ein parametrischer Equalizer der Akustische ProblemeIhrer Anlage oder Ihres Fahrzeuges ausbessern soll. Der OEQ2 ist ein10 Band Stereo Equalizer bei dem einzeine Frequenzbänder, unterteiltin interval-Oktaven eingestellt werden kônnen. Jedes Band kann umplus-oder minus 12dB verändert werden, um so Probleme desFrequenzverlaufes zu korrigieren. Die Frequenz-Kontrolle erlaubtIhnen die jeweilige Frequenz um eine 1/2 Oktave anzuheben oderabzusenken. Eingangs- und Ausgangs-Pegelregler erlauben Ihnen,den OEQ2 optimal an Ihre Anlage einzupassen. So übernimmt derOEQ2 die Feinabstimmung Ihrer Anlage und hilft Ihnen einen möglichstgeraden Frequenzgang zu haben.
ANSCHLUβ DES OEQ2
Anschluβ des StromsteckersDer B+ Anschluβ sollte mit einem Dauerplus Ihres Fahrzeugesverbunden werden. Verwenden Sie ein Kabel das konstant 12 Volt hatund isolieren es am Ende ca. einen 1/2 cm ab. Stecken Sie es dann indas B+ Terminal und ziehen die Schraube fest.
Achtung: Das B+ Kabel Mub 46cm nach der Stromaufnahmeabgesichert sein. Installieren Sie einen Sicherungshalter mit derpassenden Sicherung und stellen Sie sicher das er Spritzwassergeschützt ist.
Die Einschaltleitung sollten Sie von der Remote-oder Anten-nenspannung Ihres Radios abgreifen. Isolieren Sie es ca. einen 1/2 cm amEnde des Kabels ab und schrauben es im Remote-Terminal fest DieSpannung die in diesem Kabel fliebt ist sehr gering.
Das Erdungskabel sollte direkt mit der Erdung des Fahrzeugesverbunden werden. Das Kabel sollte nicht länger wie 30 cm sein.Isolieren Sie wieder das Ende ab und schrauben es im GroundTerminal des OEQ2 fest. Der Erdungspunkt an Ihrem Fahrzeug sollteLackfrei und sauber sein. Dort sollten Sie dann das andere Ende desErdungskabels befestigen. Stellen Sie sicher das Sie einen gutenMassepunkt wahlen.
– 31 –
Zur Sicherheit klemmen Sie den Negativ-Pol Ihrer Batterie ab.
DEU
TSCH
OEQ2 EINBAU
Chinch-Eingangs Buchsen
LEFTIN
RIGHTIN
BAL INRCABAL
BYPASSENGAGE
GND B+ REM
• Chinch-Ausgänge der Signalquelle rechts und links mit right in undleft in verbinden
• Signal-Eingangsschalter auf out für Chinch-Eingang stellen
BLT Eingang
LEFTIN
RIGHTIN
BAL INRCABAL
BYPASSENGAGE
GND B+ REM
BALANCED LINE TRANSMITTER
INPUTL R
BALANCED LINEOUTPUT
®®
LED
+ L Signal
Shield
+ R Signal
– R Signal – L Signal
–15V+15V
RCA Input
• Chinch Ausgang der Signalquelle mit dem BLT verbinden• Balanced Line Kabel vom BLT mit Bal in des OEQ2 verbinden• Signal-Eingangsschalter auf in für Balanced Line Input stellen
Achtung: Verwenden Sie niemals Chinch-und Balanced Line Kabel gemeinsam
ChinchEingänge
– 32 –
Leggere attentamente le istruzioni riportate in questo manuale. Non osservarele correte procedure di impiego puó provacare danni al veicolo o a voi stessi.
CABLARE IL SISTEMA
Per sicurezza, disconnettere il cavo negativo dalla batteria prima diiniziare l'installazione.
Cablare il connettore di alimentazione.Alla terminazione siglata B+ connettere un cavo spellato per circa8mm inserendolo nel foro apposito e fermandolo serrando la vite.Collegare l'altra estremitá del cavo ad un polsitivo costante (semprepresente) dell'auto.
NOTA: Il cavo positivo del sistema audio deve essere protetto da unfusibile posto a non piú di 40cm dalla terminazione positiva dellabatteria e deve essere a tenuta d'acqua.
Alla terminazione REM connettere un cavo proveniente dal remotedell'autoradio (es. antenna elettrica). Il consumo di corrente éassolutament trascurabile.
Alla terminazione GND connettere un cavo opportunamente portatoalla massa del telaio deve essere pulito dalla vernice e da eventualigrassi o siliconi ed il cavo deve essere solidamente fissato ipiegandoun terminale ad anello ed una vite non anodizzata.
INTRODUZIONE
OEQ2 é un equalizzatore ad ottave impiegato per compensare i difettiacustici tipici dell'interno delle automobili. OEQ2 é un equalizzatorestereo con 10 bande di interveno spaziate ad ottave. Ciascuna bandapuó arrivare ad un'esaltazione od attenuazione massime di 12dB percompensare picchi o buchi nella curva di risposta. Per ciascunabanda puó essere regolato con massima precisione il punto diintervento, spostandolo di ±1/2 ottave, con il controllo FrequencyWarp. Per un ottimale interfacciamento sono previsti controlli dilivello di ingresso e di uscita separati ed una comoda barra LED percontrollare lo stadio di ingresso. OEQ2 é un versatile equalizzatorecon ottime caratteristiche che permettono di tarare il sistema allaperfezione e di compensare i problemi di risposta dell'auto.
– 33 –
INSTALLAZIONE DELL'OEQ2
Connessione degli ingressi RCA
LEFTIN
RIGHTIN
BAL INRCABAL
BYPASSENGAGE
GND B+ REM
• Le uscite RCA della sorgente vengono collegate agli ingressi LEFT INe RIGHT IN dell'OEQ2
• Lo switch deve essere nella posizione RCA (rilasciato)
Connessione dell'ingressobilanciato BLT
LEFTIN
RIGHTIN
BAL INRCABAL
BYPASSENGAGE
GND B+ REM
BALANCED LINE TRANSMITTER
INPUTL R
BALANCED LINEOUTPUT
®®
LED
+ L Signal
Shield
+ R Signal
– R Signal – L Signal
–15V+15V
RCA Input
IntressoRCA
ITALIA
NO
– 34 –
• Le uscite RCA della sorgente vengono collegate agli ingressi del Bal-anced Line Transmitter BLT (fornito a parte)
• Il cavo bilanciato del BLT vieve connesso all'ingresso BAL IN dell'OEQ2• Lo switch deve essere nella posizione BAL (premuto).
NOTA: Non impiegare gli ingressi bilanciati ed RCA contemporaneamente.
NOTES
NOTES
Rockford FosgateRockford Corporation
546 South Rockford DriveTempe, Arizona 85281 U.S.A.
In U.S.A., (602) 967-3565In Europe, Fax (49) 4207-801250In Japan, Fax (81) 559-79-1265
2/96MAN-1135-A
