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Audio Control EX concert series Owner's Manual

Equalizer/crossover/level matcher
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Concert Series
EQUALIZER/CROSSOVER/LEVEL MATCHER
OWNER'S MANUAL
®
®
®
making good stereo sound better
22410 70th Ave. W., Mountlake Terrace, WA 98043
Phone 425-775-8461 • Fax 425-778-3166
www.audiocontrol.com

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Summary of Contents for Audio Control EX concert series

  • Page 1 Concert Series EQUALIZER/CROSSOVER/LEVEL MATCHER OWNER’S MANUAL ® ® ® making good stereo sound better 22410 70th Ave. W., Mountlake Terrace, WA 98043 Phone 425-775-8461 • Fax 425-778-3166 www.audiocontrol.com...

  • Page 2: Table Of Contents

    Concert Series Owner’s Manual Table of Contents Quick Installation Info Refer to Figures 3 through 5 (pages 9 to 11) when Introduction ......1 installing the EQX Equalizer/Crossover. Description ....... 4 The unit is shipped from our factory with a 90 Hz crossover module already installed, and the Installation ........

  • Page 3: Introduction

    Introduction We design, test, and build each EQX Equalizer/ Congratulations! Crossover right here in the misty rain forests the Pacific Northwest. When you look inside You have purchased one of the most exciting the rugged two-piece steel chassis, you’ll find we and innovative audio products available for use only premium electronic parts and gold- your car stereo system –...
  • Page 4 Concert Series Owner’s Manual Level Matching Dual Bandwidth Equalizer – 13 bands True standards in car stereo are hard to find. The dual bandwidth design of the EQX Every manufacturer has a slightly different concentrates more control in the lower bass interpretation of things.
  • Page 5 Introduction Bridging Adaptor IMPORTANT Bridging an amplifier gives you more power. For maximum product performance, nothing is The EQX can combine the two channels of better than a professional system installation. almost any amplifier into one, for really Your AudioControl dealer has the training and powerful bass.
  • Page 6 Concert Series Owner’s Manual Figure 1.Top panel layout for EQX Equalizer/Crossover/ Level Matcher.

  • Page 7: Description

    Description Description Full Range, High Pass, or Low Pass outputs. The top panel also includes several indicators to confirm power and help set output levels. We’ve created the EQX Equalizer/Crossover/ Level Matcher to make any system sound HALF OCTAVE BASS EQUALIZER – six half- better.
  • Page 8 Concert Series Owner’s Manual Figure 2. Front panel layout for EQX Equalizer/Crossover/Level Matcher. High Level I n p u t E q u a l i z e L i n e L e v e l Full Range High Pass Low Pass Low Pass Mono...
  • Page 9 Description HIGH PASS OUTPUT – RCA jacks for connec- Crossover/Programmable Frequency tion of high frequencies above the crossover Match Modules and Ground Isolation point to the inputs of the mid/high fre- Selector (Inside) quency amplifier. LOW PASS OUTPUT – RCA jacks for connec- The crossover and PFM filter modules, as well as tion of low frequencies below the crossover the ground isolation selector, are internal and...

  • Page 10: Installation

    Concert Series Owner’s Manual Installation Installation Precautions Do not mount the EQX Equalizer/Cross- We strongly suggest you have the EQX profes- over/Level Matcher where it will be exposed sionally installed, but if you are doing it solo, to outside elements or extreme tempera- this section lists the procedures you’ll need to tures.
  • Page 11 Installation Figure 3. Wiring diagram for EQX in a bi-amplified system.
  • Page 12 Concert Series Owner’s Manual Figure 4. Wiring diagram shows an EQX in a Figure 5 (on opposite page). Wiring diagram shows single-amplifier system using a deck and The an EQX in a bi-amplified system with an Model 11 EPICENTER. Amplified Center Channel Image Processor.
  • Page 13 Installation...
  • Page 14 Concert Series Owner’s Manual WARNING Connecting the EQX Before installation, turn off the power 1. With ignition off, disconnect the negative (-) to the head unit or radio and discon- lead from the vehicle’s battery. nect the negative (-) lead of your 2.
  • Page 15 Installation 3. Adjust the INPUT GAIN control until the 4. On the EQX, set all equalizer controls to the yellow INPUT MAXIMIZED LED starts to flat (i.e.,“0”) position. Set the INPUT GAIN flicker. Now back the control off until the controls for minimum gain (i.e.,“-18”).
  • Page 16 Concert Series Owner’s Manual 10. Listen to the vocals and instruments, and Adjusting the EQX (cont’d) trying cutting the frequencies in the mid- NOTE: Consult the amplifier owner’s manual bass (90 to 250 Hz) and mid-range (2 to 4 kHz) spectrum. The mid-bass response is for information on setting its input sensitivity.
  • Page 17 Installation In fact, if you listen to a badly-adjusted system 12. As a final check, press the EQUALIZE switch long enough, it will actually start sounding OUT and IN to compare the sound without pretty good. Only later, when your hearing and with equalization.

  • Page 18: Amplifier Bridging

    Concert Series Owner’s Manual Amplifier Bridging The formula for output power of an amplifier (single channel) is: The EQX comes with LOW PASS MONO Out- (Peak Voltage x .707) = Output Power (watts) puts, so you can create a bridged amplifier Load impedance (ohms) system that will drive a subwoofer at maximum For a normal amplifier (rated at 25 watts per...
  • Page 19 Amplifier Bridging CAUTION: Limitations in the amplifier power supply will almost always reduce the available current. Therefore, the realized power output will generally be less than four times the amplifier’s power output. Although bridging is the best way to maximize bass output, check the amplifier's manual to make sure it is capable of driving a 2 ohm load, and Figure 6.

  • Page 20: Making Your Own Crossover And Programmable Frequency Match Modules

    Concert Series Owner’s Manual Making Your Own Crossover and Programmable Frequency Match Modules A crossover network is a circuit that divides the bandwidth of an audio signal into two or more frequency bands, as shown here. High Sounds Crossover Incorporated Low Sounds Figure 7.
  • Page 21 Making Modules Since component speakers (like woofers, mids, Most manufacturers list a recommended cross- and tweeters) are designed only to reproduce over frequency as part of the speaker’s specifica- certain frequencies, a crossover allows us to tions. Choosing an even higher crossover point will provide increased speaker reliability, espe- match the speakers needs to the appropriate frequency range...
  • Page 22 Concert Series Owner’s Manual Making Your Own (cont’d) WARNING TURN OFF THE SYSTEM BEFORE CHANG- Additional modules with pre-set frequencies are ING MODULES, OR ELSE SOMETHING IN available from an authorized AudioControl YOUR SYSTEM WILL BE DAMAGED! dealer, or you can create a custom crossover and/or low cut filter by using the following formula INNARDS (top view)

  • Page 23: Troubleshooting

    Making Modules 1. Turn the system power off. Troubleshooting 2. Remove the top panel and locate the cross- 1. If you hear a “buzz” or “whine,” you may over or Performance Frequency Match have a grounding problem. Check all power module, as shown in Figure 8 (on the oppo- connections and cables.
  • Page 24 Concert Series Owner’s Manual Unabashed Plug! The Epicen- ter™ is our patented bass In addition to the EQX, we manufacture a restoration unique line of high-quality Performance Match solution that Components, all designed to work together to will dramati- give you the best-sounding system, regardless of cally add the type of vehicle you own.

  • Page 25: Warranty

    And Now, A Word From Our Lawyers option, during that time. For you do-it- Warranty yourselfers we will warrant your EQX for One year. People are scared of warranties. Lots of fine print. Lots of noncooperation. Months of wait- Here are the conditions that make this warranty ing around.
  • Page 26 Concert Series Owner’s Manual front bumper of your Baja bug and get it full 4. You cannot let anybody who isn’t: (a) the of water and dirt, things will go wrong. AudioControl Factory; (b) an authorized service center; or (c) someone authorized in Assuming you conform to numbers 1 through 5, writing by AudioControl service your EQX.
  • Page 27 Specifications Block Diagram Figure 10. Block diagram of the EQX Equalizer/ *NOTE: The Mono Output can be split with a Crossover/Level Matcher. ‘Y’ cord if your amp needs dual mono inputs.

  • Page 28: Specifications

    Concert Series Owner’s Manual Specifications © AudioControl 1998. AudioControl is a division of Electronic Engineering and Manufacturing, Inc. All rights are reserved. All specifications are measured at 14.4 Vdc (stan- dard automotive voltage). AudioControl, Performance Match, Making Good Stereo Sound Better, EQX, 4XS, 2XS, and The Epicenter are all Frequency Response: 10 Hz to 20 kHz + 1 dB trademarks of Electronic Engineering and Manufacturing, Inc.

This manual is also suitable for:

Eqx