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Introduction

The KEQ20

KEQ20

KEQ20

KEQ20

KEQ20

KEQ20

KEQ20

 is a Six Channel Pre-Amp Equalizer Network with which you can install various types of 

multi-amplifier systems in a car. The 

 is  to  be used  with  high quality power amplifiers and 

speakers in a multi-amplifier system for hi-fi (high fidelity) sound reproduction.  
You will be satisfied with the 

 provides maximum flexibility to configure every possible multi-

amplifier car stereo system. Before designing and installing your system, please read this manual 
thoroughly so that you  can  set  up  the system that practically suits you. Having  the  

 in the 

center of your  multi-amplifier  car  stereo system, your car stereo system will provide you with the 
ultimate in hi-fi reproduction.

Key Features

This unit is designed for 12V DC operation only. 
Avoid Installing the unit where:
- It would be subject to high temperatures, such as  direct sunlight or from hot air from the heater.
- It would be exposed to rain or moisture
- It would be subject to dust or dirt
If your car  is parked in direct sunlight and there is a considerable rise in temperature inside the 
car, allow the unit to cool off  before operating. 
If this unit is placed  too close to the car radio or any vehicle wires, an interference may occur, in 
this case, separate the unit  from  the car radio and power wires.

Precautions

Dual-bandwidth Equalization:
Car interiors vary widely in size and acoustic make-up. The addition interior design  don't  make the 
best location for speaker placement causing your high performance speaker system to sound not as 
good as it could be. The 

 provide a  maximum  equalization control for each area of the audio 

spectrum. One-third octave bass equalization combined with one-half and full octave high frequency 
equalization offers an ideal level control.

10 Volts Pre-Amp Line Driver:

The  

  offers a high quality line driver that takes the low output voltage of a source unit and 

increases it up to 18dB (13 volts peak). This allows you to maximize the signal-to-noise of  your 
system  and  drive your  amplifiers  to  their maximum output  without clipping. No hiss, clicks,  or pops 
plus maximum sound quality.

Speaker Level Inputs:

The 

 has a unique high impedance speaker level input that will interface with most head units 

and let you add amplifiers and speakers to your audio system.

PFM Subsonic Filter:

This unique feature is able to fine-tune the bass response of any system. Why waste power on nasty 
subsonic information when your Programmable Frequency Match (PFM) filter will help you clean things 
up.  

Summary of Contents for KEQ20

Page 1: ...6 WAY graphic equalizer KEQ20 USER S MANUAL 20 BAND EQUALIZER FRONT REAR SUBWOOFER LINE DRIVER SPEAKER LEVEL OUTPUT ...

Page 2: ...it is placed too close to the car radio or any vehicle wires an interference may occur in this case separate the unit from the car radio and power wires Precautions Dual bandwidth Equalization Car interiors vary widely in size and acoustic make up The addition interior design don t make the best location for speaker placement causing your high performance speaker system to sound not as good as it ...

Page 3: ...e manufacturer will probably require you to decrease the signal level 3 Equalization Controls Each of these knobs control the audio spectrum They can be adjusted the audio output to suit your personnel taste 4 Output Level Controls Although your has the ability to increase your signal voltage to 13 volts peak your amplifiers may not necessarily accept that much signal These controls allow you to r...

Page 4: ...ake sure your system is turned OFF before you move these jumpers Installation A Placement Mounting of the KEQ20 Placement The KEQ20 needs to be installed in the signal path after your source unit but definitely before your amplifiers and or any active crossovers The chassis is usually mounted in the rear of the vehicle close to the amplifiers as possible Mounting Once you have selected a permanent...

Page 5: ... fused at 2 amp Ground Connection Use the same gauge wire as you did for the positive connector and run it from the Ground connector on the KEQ20 to a chassis ground with the length be as short as possible to ensure a good ground connection Figure 3 Side view of KEQ20 Remote In Front Output Remote Out Power 12V Ground Connectors Crossover Rear Front Speakers Rear Speakers Sub woofers System 1 Some...

Page 6: ... 5 Some Example of System Configuration Rear Front Speakers Rear Speakers Sub woofers System 2 Front Subwoofer Rear Front Speakers Rear Speakers System 3 Front ...

Page 7: ...Gain control until the Overload LED begins to flicker steadily with the music Do the same for the Rear Input and Subwoofer Input Important Note For Four Channel Or Speaker Level Input Users If you are only using the Front or Rear or Speaker Level inputs you will find that the subwoofer equalization now works on the rear channels Therefore the Rearinput gain is actually controlled by the Subwoofer ...

Page 8: ...0mA 2 Amp 8 8 W x 9 3 D x 1 3 H 3 25 lbs SPECIFICATIONS 1 NOT WORKING Check all fuses Check all power positive remote wire connections Check that ground wire is properly connected 2 LED POWER ON INDICATOR NOT GOING ON Same as sign 1 remedy 3 SOUND DISTORTION AT LOW VOLUME LEVEL Output level not set correctly 4 LEVEL OF SOUND IS LOW Check the RCA patch cords for loose ormisconnected cable 5 A WHINI...

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