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Summary of Contents for Audio Control EQL
- Page 1 Concert Series EQUALIZER/LEVEL MATCHER OWNER’S MANUAL OWNER’S MANUAL OWNER’S MANUAL OWNER’S MANUAL 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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Page 2: Table Of Contents
Quick Installation Info Quick Installation Info Introduction ........1 Refer to Figures 4, 5, and 6 (on pages 9, 10, and 11) when installing the EQL Equalizer. Description ........4 The unit is shipped from our factory with Installation ........8 the Programmable Frequency Match filter... -
Page 3: Introduction
We have learned a great deal about cars, stereos, and acoustics over the years. All of this has been poured into the new EQL to give you the tools to make your car stereo the envy of all your pals. - Page 4 The higher looking at the output from your source frequency controls are spaced on octave unit in a different way the EQL can reject centers to give you complete control up up to 60 dB of radiated noise.
- Page 5 High Level Inputs IMPORT IMPORTANT IMPORT The EQL is so flexible that you don’t even For maximum product performance, noth- need to have pre-amp outputs on your ing is better than a professional system instal- deck to enjoy the benefits of total control.
- Page 6 Concert Series Owner’s Manual Figure 1.Top panel layout for EQL Equalizer/Level Matcher.
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Page 7: Description
Description Description Description Description power and help set output levels. We’ve created the EQL Equalizer/Level HALF OCTAVE BASS EQUALIZER – six Matcher to make any system sound better. half-octave bass equalizer controls for This Performance Match™ Component each channel with frequency centers at features straightforward connections and 31.5, 45, 63, 90, 125, and 180 Hz. - Page 8 OUTPUT – RCA jacks for connection of bypass button, as shown in Figure 2 (above.) EQL outputs to the inputs of an amplifier. HIGH LEVEL INPUT – Our handy plug for REMOTE/+12/GROUND - Another handy...
- Page 9 Figure 3 (also see Figure 8 on page 19). Be sure to turn off the power before you open the EQL. We ship each EQL with the Programmable Frequency Match filter set at 33 Hz. Refer to page 18 for information on how to create your own custom PFM module.
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Page 10: Installation
Installation Precautions Installation Precautions Installation Precautions Do not mount the EQL Equalizer/Level We strongly suggest you have the EQL pro- Matcher where it will be exposed to outside fessionally installed, but if you are doing it elements or extreme temperatures. Avoid solo this section lists the procedures you’ll... - Page 11 Installation Figure 4. Wiring diagram for EQL Series II in a single amplifier system.
- Page 12 Concert Series Owner’s Manual Figure 5. this wiring diagram shows a 3-way system that uses an EQL with an ESP-2 Spatial Restoration Processor and a 4XS used as a 3-way Crossover.
- Page 13 Installation Figure 6. Wiring diagram shows an EQL with an AudioControl System90 Powered Signal Processor in Bi-Amp Mode.
- Page 14 HIGH LEVEL INPUT (Left and Right). 3. Drill a small pilot hole at each marked location. 3. On the EQL, set all equalizer controls to the flat (i.e.,“0”) position. Set the INPUT 4. Secure the EQL with self-tapping screws.
- Page 15 4. Reconnect the vehicle’s negative (-) bat- 4. Next, start the trackoverso that you are tery lead and proceed to the next section. referencing the same musical informa- A A A A A djusting the EQL djusting the EQL djusting the EQL djusting the EQL djusting the EQL tion as in step 3.
- Page 16 This may be a minimum setting on your kHz) spectrum. The mid-bass response is amp. Don’t worry, the EQL can still drive it to usually a problem area due to standing full volume. If your Amp cannot accept 2V you waves caused by sound resonating in the may need to turn the output level down a bit.
- Page 17 Installation Analyzer, since our ears adapt very quickly to NOTE: If the (yellow) OVERLOAD indicator comes on, something is boosted too much. any new frequency adjustments. Either bring down the suspect frequency control In fact, if you listen to a badly-adjusted sys- or adjust the INPUT GAIN controls to reduce tem long enough, it will actually start sound- the overall gain.
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Page 18: (Oem) System
Upgrading A F Upgrading A Factory Upgrading A F actory actory It’s as simple as moving the wires from the speakers to the EQL. Don’t worry, the EQL is (OEM) System (OEM) System (OEM) System (OEM) System (OEM) System designed to effortlessly handle the higher... - Page 19 Upgrading Factory Systems Figure 7. Wiring diagram shows a factory (OEM) system upgraded with the EQL and an AudioControl System90 Powered Signal Processor to create a superlative 2-way system.
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Page 20: Frequency Match Modules
Match Modules Match Modules Match Modules EXAMPLE – For a 25 Hz filter, the The EQL comes with an 18 dB per octave formula yields a resistor with a value of Programmable Frequency Match low-cut filter 7200 module already set to 33 Hz. This will act as a = 288 kohms subsonic filter, protecting your woofers. - Page 21 Making Modules Doing The Deed Doing The Deed Doing The Deed Doing The Deed Doing The Deed INNARDS (top view) 1. Turn the system power off. 2. Remove the top panel and locate the Programmable Frequency Match module, as shown in Figure 8. 3.
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Page 22: Troubleshooting
Turn down the volume. No Power Check the +12 volt, ground, and remote turn-on leads. Hiss Turn down the input levels on the amplifier. Use the output controls on the EQL to bring the volume back up. See page 13. - Page 23 Unabashed Plug! Unabashed Plug! The Epicenter™ is our patented bass restora- tion solution that will dramatically add In addition to the EQL, we manufacture a impact or unique line of high-quality Performance depth to your Match Components, all designed to work...
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Page 24: Warranty
“who’s good purchase your EQL. with electronics” try to repair your Audio- Control EQL. So go ahead and read this 2. You must keep your sales slip or receipt so warranty, then enjoy your new component... - Page 25 AudioControl service your Assuming you conform to numbers 1 EQL. If anyone other than (a), (b) or (c) through 5, and it isn’t all that hard to do, we messes with your EQL Series II, that voids get the option of deciding whether to fix the warranty.
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Page 26: Block Diagram
Concert Series Owner’s Manual Block Diagram Figure 9. Block diagram of the EQL Equalizer/Level Matcher. -
Page 27: Specifications
Specifications Specifications All specifications are measured at 14.4 Vdc (standard automotive © AudioControl 1998. AudioControl is a division of voltage). Electronic Engineering and Manufacturing, Inc. All rights are reserved. Frequency Response: 10 Hz to 20 kHz ± 1 dB AudioControl, AudioControl Industrial, Performance Total Harmonic Distortion (THD): 0.005% Match, Making Good Stereo Sound Better, EQX, ESP-2,... - Page 28 Concert Series Owner’s Manual Doodle Here! Doodle Here! Doodle Here! Doodle Here! Doodle Here!
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