AudioControl DQDX Page 4 User Manual Download | Manualshive

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Key Features

• User-friendly Signal Delay to control the acoustical alignment

between the left and right channels plus the front and subwoofer

channels

• Individual equalization controls for the front, rear and subwoofer

channels for simple yet precise system tuning

•  Fully adjustable 24dB/Octave Linkwitz-Riley electronic crossover
•  PFM (Program Frequency Match) Subsonic Filter
•  Six channels of RCA line level inputs
•  ACR-3 Dash Control Remote allows for control of the subwoofer

level, to bypass processing, and to setup the delay

• Discrete Input and Output level controls with clipping indicators
• Remote turn on output provides a 12-volt trigger to turn on your

amplifier

• Built in Pink Noise for easy Signal Delay and Equalizer tuning and

system set-up

• Bulletproof 5 year warranty (when installed by an authorized

AudioControl dealer)

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Summary of Contents for DQDX

Page 1: ...t is a compact six channel high performance signal processor with in dependent multi channel equalization and signal delay to custom tune the system plus a selectable electronic crossover for precise system set up In short the DQDX can Make Good Sound Great Whether this is your first product from the rainforest dwellers of Audio Control or you are already a firm believer you will definitely enjoy ...

Page 2: ... Ground wiring of a suitable thickness gauge to ensure adequate current to the apparatus 11 Use rubber grommets to protect wiring whenever passing wires through metal openings or bulkheads 12 Only use attachments accessories specified by the manufacturer 13 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as the power inpu...

Page 3: ...nying the appliance Caution to reduce the risk of electric shock do not disassemble the apparatus other than to remove the top panel to access the controls There are no user serviceable parts inside Refer servicing to qualified personnel Recycling notice If the time comes and this apparatus has fulfilled its destiny do not throw it out into the trash It has to be carefully recy cled for the good o...

Page 4: ...ctronic crossover PFM Program Frequency Match Subsonic Filter Six channels of RCA line level inputs ACR 3 Dash Control Remote allows for control of the subwoofer level to bypass processing and to setup the delay Discrete Input and Output level controls with clipping indicators Remote turn on output provides a 12 volt trigger to turn on your amplifier Built in Pink Noise for easy Signal Delay and E...

Page 5: ...rear and subwoofer RCA Line Level outputs connect them to the corresponding inputs on your DQDX If your source unit has only front and rear inputs fear not Just connect these to the front and rear inputs on the DQDX and switch the Sub to Front jumper to the ON position There is a more detailed description of the jumpers located under the cov er in the section titled Under The Cover Changing this j...

Page 6: ...l Delay Mode to Set Up 10 Using the ACR 3 Dash Control adjust the signal delay between the Left and Right channels for optimum sound 11 Tap the ACR 3 Dash Control and adjust the signal delay between the front and subwoofer outputs 12 On the chassis change Signal Delay Mode back to Normal 13 Set the equalization controls for the front rear and subwoofer channels While your ears are a good reference...

Page 7: ...ioControl Autosound products are designed and assembled at our factory in the Pacific Northwest just outside of a little town called Seattle Washington By nature our products are rather sophisti cated so we spend a good deal of time training our dealers and their installation team We do this so you will get the best possible results from your AudioControl components To reinforce this point if you ...

Page 8: ... 8 3 2 4 5 11 12 14 10 9 8 7 6 1 13 ...

Page 9: ...nput of your after market amplifiers Please refer to the section on Level Matching on page 24 for a more detailed description on how to set these correctly 3 Equalization Controls To custom tune your system the DQDX gives you dedicated equalization controls for the Front Rear and Subwoofer outputs See the section on Equalization Optimization on page 20 for a more detailed description on how to set...

Page 10: ...uipped with a 12 Volt trigger wire then find a reliable source in the vehicle that comes on when the key is in the On position and turns off when the key is in the Off position 9 Remote Out Connect the 12 Volt turn on lead for your aftermar ket amplifiers directly to this connection and not to any other This is critical to eliminate any clicks or pops during power up and power down cycles 10 Maxim...

Page 11: ...ng the remote momentarily will defeat all process ing on the DQDX Equalizer and Signal Delay This is very helpful during set up to make sure the changes you make to the EQ and Delay made the difference you were looking for 13 Pre Amp Outputs These RCA plugs should be connected directly to your amplifier inputs Do not connect any speakers directly to your DQDX and definitely do not connect to any h...

Page 12: ...ver we recognize there are situations where advanced users may have the need to configure the DQDX for specific applications Therefore we have provided a few setting that are located under the chassis top for limited access Important Note Make sure that the power to the DQDX is disconnect ed before accessing these jumpers 1 2 4 3 ...

Page 13: ...r If your source unit has front rear and subwoofer RCA Line Level outputs connect them to the corresponding inputs on your DQDX If your source unit has only front and rear inputs just connect these to the front and rear inputs on the DQDX and switch this Sub to Front jumper to the ON position Changing this jumper to ON will route the low pass signal as defined by your crossover selection to the Su...

Page 14: ... 14 Basic DQDX installation using 4 channel input and 6 channel output LC 4 800 4 Channel Amplifier Front Front Rear Front Rear Subwoofer Subwoofer Rear LC 1 800 Subwoofer Amplifier ACR 3 ...

Page 15: ... 15 Typical DQDX installation LC 4 800 4 Channel Amplifier Front Front Rear Subwoofer Front Rear Subwoofer Subwoofer Rear LC 1 800 Subwoofer Amplifier ACR 3 ...

Page 16: ...g a DQDX and The Epicenter from AudioControl to achieve maximum sound quality and bass LC 4 800 4 Channel Amplifier Front Front Rear Front Rear Subwoofer Subwoofer Rear LC 1 800 Subwoofer Amplifier ACR 3 ACR 1 ...

Page 17: ...or iPad don t worry you can easily set up the delay just by using your ears 2 After you have made all your power and ground connections select your crossover point on the DQDX and set your input and output levels correctly Turn the Signal Delay knob on the chassis all the way to the right to go into Set Up Mode In this mode the Orange LED on the chassis will turn on and the blue LED will blink on ...

Page 18: ...ay Engaged Equalizer Engaged ACR 3 Blue LED Only Signal Delay Disengaged Equalizer Disengaged Set up Mode Dash Knob controls the Signal Delay SET UP LED ON Blue LED Flashing Red LED Solid Signal Delay Adjustment is Left to Right Blue LED Flashing Red LED Off Signal Delay Adjustmentis Sub to Front ...

Page 19: ...elp you determine your amount of delay If you think you have gone too far just turn the knob all the way clockwise to start back at zero and slowly turn counter clockwise until you reach your desired result 6 Front Subwoofer Delay Once the Left Right delay has been adjusted push the ACR 3 knob until its blue LED is blinking but the red LED is off this is the front sub delay mode With the source ma...

Page 20: ...et your hands on a good quality RTA real time analyzer we happen to make a really good one the SA 4140 If you cannot locate an RTA you probably want to have your authorized AudioControl dealer perform the equalization adjustments since they will have one You can certainly adjust your DQDX using your ears however using an RTA will give you the best results 2 Begin playing pink noise through your sy...

Page 21: ...al although it is also one of the most difficult to prop erly reproduce Most people prefer 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 The 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 DQDX to try and forc...

Page 22: ... a few controls in this area because too much boosting can really make a speaker sound un natural Digitally Selectable Delectably Electronical Crossover Since component speakers like woofers midrange and tweeters are designed to reproduce certain frequencies a crossover allows you to match the speaker needs to the appropriate frequency range The correct crossover frequency greatly depends on your ...

Page 23: ...t below To get to the exact desired frequency simply start out with the cross over selector turned all the way to the left or counter clockwise and count the position clicks until you get to the frequency you want to use Pos Freq Pos Freq 1 50 Hz 7 00 o clock full left rotation 12 125 2 50 13 150 1 00 o clock 3 60 14 175 4 65 15 200 5 70 8 30 o clock 16 250 6 75 17 300 3 30 o clock 7 80 18 400 8 8...

Page 24: ...X and your amplifier s otherwise get some earplugs 3 Start playing some relatively dynamic music and set the volume on your source unit to about max volume You should not hear anything at this point If you are hearing music go back to step 2 If you are hearing voices please go see a doctor 4 Starting with the DQDX input level controls adjust the control knob clockwise until the Input Maximized LED...

Page 25: ...knob to bypass the signal processing of the DQDX equalization and signal delay You can hear the system with and without the processing and easily judge the difference that tuning makes your system Press the ACR 3 knob for 4 seconds to play pink noise instead of music to help while setting up your system EQ Placement and Mounting The ACR 3 may be mounted under the dash using its own bracket or thro...

Page 26: ...wires or other components Reassemble the dash control components on the dashboard Block Diagram of the DQDX Feeling lost Here s an internal roadmap to help you out This sim plified block diagram is a map of the paths your signals take inside the DQDX With this diagram you can follow each input through the proces sor If you do have an issue with the hook up of your DQDX and need to call for technic...

Page 27: ... 27 ...

Page 28: ...ndicate that certain conditions have to be met before they ll honor the war ranty If you meet all of these conditions we will warranty all materials and workmanship on the DQDX for one year from the date you bought it five years if it is installed by an authorized United States AudioCon trol dealer We will fix or replace it at our option during that time Here are the conditional conditions 1 You h...

Page 29: ...if you mount it to the front bumper of your car some thing will go wrong If an authorized United States AudioControl dealer installs the DQDX the warranty is five years Assuming you conform to 1 through 5 and it really isn t all that hard to do we get the option of fixing your old unit or replacing it with a new one LEGALESE SECTION This is the only warranty given by AudioControl This warranty giv...

Page 30: ... Input Impedance 20 Kohms Equalization Frequencies Front Rear 125Hz 175Hz 250Hz 500Hz 1kHz 2kHz 8kHz Sub Output 31 5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz Signal Delay Left Right Max Delay 10 ms Front Sub Max Delay 35 ms Crossover Frequency 50 Hz to 500 Hz Crossover Slope 24dB Octave Linkwitz Riley PFM Frequency 20 Hz or 30 Hz Output Impedance 150 Ohms Power supply High headroom PWM switching Power dr...

Page 31: ... Making Good Sound Great and DQDX are all trademarks of AudioControl Inc This manual was conceived designed and written on a cold and windy day in the Pacific Northwest which is what the locals from Seattle call spring ...

Page 32: ...22410 70th Ave West Mountlake Terrace WA 98043 USA Phone 425 775 8461 www audiocontrol com Making Good Sound Great P N 913 125 0 Rev B ...

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