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Page 2: ... making good stereo sound better 22410 70th Avenue West Mountlake Terrace WA 98043 Phone 425 775 8461 Fax 425 778 3166 Owner s Enjoyment Manual Six Channel Pre Amp Equalizer 35tm ...
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Page 4: ...st six channel pre amp equalizer from AudioCon trol the leading manufacturer of performance signal proces sors and analyzers Whether this is your first product from the rainforest dwellers of AudioControl or you are already a firm believer you will definitely enjoy how great the EQS can make your performance autosound system sound Now before you start salivating too much just thinking about the be...
Page 5: ... 13 Volt Pre Amp Line Driver The EQS 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 Auto Selecttm Inputs Whether your source unit has two fo...
Page 6: ...t important feature of all Every AudioControl product is selflessly designed and manufactured by the occupants of our rainforest factory We take every effort to ensure that you will have many years of enjoyment out of your EQS To ensure the performance of your new toy we highly recom mend that you allow your authorized AudioControl dealer to perform the installation Not only do they have all the r...
Page 7: ... you will want to select a location that allows you access to the equalization controls 3 Hook up 12 volt power 12 volt ground and remote turn on If you need to know more then read on Heck if you don t think you need to know more you should still read on because you can never know too much 4 Level match the inputs of your EQS to your source and then adjust the outputs to match with your amplifier ...
Page 8: ...controls to the rear channels 2 Input Gain Controls These knobs allow you to increase or decrease the signal level from your source unit to the EQS Most aftermarket source units will require an increase whereas radios installed by the automobile manufac turer will probably require you to decrease the signal level 3 Equalization Controls Each one of these nifty knobs is essentially a tone control d...
Page 9: ...nal voltage that is coming out of the various outputs of your EQS 6 Outputs These RCA connectors should be con nected to the next component after the EQS such as a crossover or amplifier Do not connect any speakers directly to your EQS or to any home appliances like your toaster 7 Power Connections This nifty connector is a godsend to anyone who has tried to wire up their gear with their body cram...
Page 10: ...stem because the source unit and amplifier are using different grounding schemes To help in this situation we have provided alternative grounding connections Make sure your system is turned OFF before you move these jumpers 3 PFM Subsonic Filter The EQS utilizes the world famous AudioControl PFM Programmable Frequency Match filter to help with speaker control and amplifier power management To chan...
Page 11: ...y more than an expensive repair bill Drill a few small pilot holes and secure the chassis of the EQS with self tapping screws B EQS Power Wiring WARNING Failure to disconnect the negative terminal of your battery prior to the installation of you EQS can result in a warm tingly feeling Remote Turn On Connect a 22 to 18 gauge wire from the head unit s remote turn on to the Remote connector on the EQ...
Page 12: ...e guessed there are numerous ways to configure the EQS in your audio system Spend a little quality time planning out your system and even sketching it out on paper The following diagrams are just a few of the system options Figure 5 EQS with Four Channel Source Unit and 3XS crossover ...
Page 13: ... Owner s Enjoyment Manual 10 Figure 6 EQS with THREE 1 Figure 7 EQS with factory installed source unit ...
Page 14: ...ng anything at this point If you are hearing music go back to step 2 if you are hearing voices go see a doctor 4 Starting with the EQS Front Input gain control increase or decrease the Input Gain control until the Overload LED begins to flicker steadily with the music Do the same for the Rear Input and Subwoofer Input 5 Now adjust the output level control until the 2 volt or 5 volt light starts to...
Page 15: ... the day most people just want their system to sound balanced and just like it did in the store or similar to their buddy s car The following equalization guidelines should help you achieve your own personal audio nirvana 1 For optimum performance get your hands on a test compact disc that contains pink noise and a good quality RTA real time analyzer we happen to know someone who makes a really go...
Page 16: ... the more critical although it is also one of the most difficult to properly reproduce Most people refer their bass frequencies to be 6 to 9 dB louder than the rest of their system although there are some crazy folks that prefer their bass substantially louder They key in this area is to have enough speakers and power to produce the amount of bass you desire but don t use the controls on the EQS t...
Page 17: ... Magic filter is a programmable subsonic filter It allows you to only let the speaker play as low as it should be playing Because every system is different we allow you to change the PFM roll off frequency to whatever you choose On most systems the factory installed module 33Hz is fine However if you know the tuning frequency of your speaker enclosure porting frequency or 3dB down point you might ...
Page 18: ...S YOU LL LOVE The THREE 1 is the perfect in dash equalizer for those of you who like the sound and detail of the EQS but want to have some control of your system from the dash of your car Of course you should not be driving while tweaking your THREE 1 but enjoy it nevertheless If you need a crossover for your system that keeps up with your EQS the 3XStm is a 4 channel 2 way crossover with breathta...
Page 19: ...ntrol dealer We will fix or replace it at our option during that time Here are the conditional conditions 1 You have to fill out the warranty card and send it to us within 15 days after purchasing your EQS 2 You must keep your sales receipt for proof of purchase showing when and from whom the unit was bought We re not the only ones who require this so it s a good habit to get into with any major p...
Page 20: ...e to your system caused by hooking up the EQS Failure to send in a properly completed warranty card negates any service claims EQS SPECIFICATIONS All specifications are measured at 14 4 VDC standard automo tive voltage As technology advances AudioControl reserves the right to continuously change our specifications like our Pacific Northwest weather although we are working on it Maximum input level...
Page 21: ...ing Inc All rights reserved P N 9130640 AudioControl Making Good Stereo Sound Better EQS The Epicenter EQL AutoMode and EQX are all trademarks of Electronic Engineering and Manufacturing Inc This manual was conceived designed and written on several bleak windy and dreary rain drenched days at our home in the Pacific Northwest Rainforest The latte s were hot and the Heffeweizen s were cold like our...
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