DB Drive A3 User's Manual
Contents
1. Input oe es ee 4 Ohm Speaker 4 Ohm Speaker 4 Ohm minimum 4 Ohm minimum Speaker Output Coa i O crz AS NT LL Bridged Bric ged E Power Input fm Es DRIV vE 4 Ohm Speaker 4 Ohm Speaker 4 Ohm Speaker 4 Ohm Speaker 2 Ohm minimum 2 Ohm minimum 2 Ohm minimum 2 Ohm minimum Speaker Output Speaker Output T JO JO C cm Ocr2 y A Bridged Bric ged Power Input 4 Ohm Speaker 4 Ohm Speaker i 4 Ohm Speaker i 4 Ohm Speaker 4 Ohm Speaker 2 Ohm minimum 2 Ohm minimum 2 Ohm minimum 2 Ohm minimum 1 Ohm minimum 6 FEATURES AND BENEFITS DC Offset Protection This circuit protects the output of the amplifier against DC voltage If for some reason DC voltage is detected at the output stage the amplifier will shut down protecting the speakers from direct current Short Circuit Protection The circuit protects the amplifier from damage due to a short found in the speakers or wiring If one of the speakers or its wiring comes in contact with ground the amplifier will shut down To resume normal operation correct the problem and turn the head unit off then back on The amplifier will reset and play again Thermal Protection To protect the amplifier circuitry against damage caused by prolonged exposure to high temperatures a thermal protection circuit is activated if the amplifier reaches excessively high operating temperature Once the thermal circuit is act2. 00 5 Front and Rear Channels 4 ohm 4X150 watts Front and Rear Channels 2 ohm 4X300 watts Mono Sub Channel 1 ohm 1X1000 watts Frequency Resp 10Hz 20Khz S N Ratio A weight gt 98dB Low Input Level 200mV 5 0 V Crossover Type Hi Low Pass Crossover Freq Lowpass 50Hz 250Hz Crossover Freq Highpass 120Hz 3KHz Crossover Slope 12db per oct Bass EQ 6 12 dB 45Hz Fuse Rating 1x80 amp Remote Bass n a 11 12 FINE TUNE THE SYSTEM Fine tune the amplifier s input sensitivity The gain sensitivity control forthe A3 2200 5 amplifier is located on the side panel This gain control has been included to allow adjustment to properly match the output of the radio This is one of the most misunderstood adjustments By rotating the control in the clockwise direction the amplifier s input will become more sensitive and the music will play louder This is not a volume control and you will not get more power out of the amplifier in the maximum position It may seem to deliver more output but actually the system is only playing louder faster as you turn the volume control on the radio Ideally to properly level match the system the goal is to achieve maximum output from the amplifier without distor tion at about of the volume control To determine if the amplifiers gain is set properly turn the system on and slowly increase the volume control You should be able to use about volume before the system gets loud but not dis
3. LIMITED WARRANTY DB DRIVE warrants any products purchased in the U S A from an authorized DB DRIVE dealer All products are warranted to be free from defects in material and workmanship under normal use and service for a period of 1 year when the unit is installed by an autho rized DB DRIVE dealer Non authorized dealer installed products carry a one 1 year parts and labor limited warranty This warranty applies to the original purchase only DB DRIVE will either repair or replace as its option any unit that has been found to be defective and under warranty provided the defect occurs within One 1 year if purchased through an authorized DB DRIVE dealer This limited warranty does not extend to units that have been subjected to misuse abuse neglect or accident Products that in DB A3 2200 5 DRIVE s judgment shows evidence of having been altered modified or serviced without DB DRIVE s authorization will be ineligible under this varano 5 CHANNEL AMPLIFIER To obtain warranty service please contact your retailer or see our web site at www dbdrive net for more details DB Research L L P 302 Hanmore Industrial Parkway Harlingen TX 78550 User Manual a ed o ph 877 787 0101 fx 956 421 4513 www dbdrive net e Installation Instructions Owners Manual Due to continuous improvement of the product the Specifications are subject to change without notice SPECIFICATIONS Input Voltage 11 14 4 VDC A3 22
4. evel matching between your source and the power amplifier INTRODUCTION Congratulations on your purchase of a DB Drive state of the art power amplifier Your selection of a DB Drive car audio product indicates a true appreciation of fine musical reproduction Whether adding to an existing system or including your DB Drive amplifier in a new system you are certain to notice immediate performance benefits KEEP YOUR SALES RECEIPT Take this time to attach your sales receipt to the manual and put in a safe place In case of any unforeseen reason this product may need warranty service your receipt will be necessary to establish purchase date RECOMMENDATION A power amplifier s performance is only as good as its installation Proper installation will maximize the system s overall performance It is recommended that you have our product installed by an authorized DB Drive retailer However if you decide to install it yourself please carefully read through this manual and take your time to do a quality installation Due to continuing product improvements and possible manual revisions we recommend checking our website for latest product information at www dbdrive net IMPORTANT Before making any connections disconnect the car s battery until the installation is completed to avoid possible damage to the electrical system WARNING Exposure to high power sound system can cause hearing loss or damage Listening to your system at loud leve
5. ivated the amplifier will shut down to cool off The amplifier will automatically turn back on once it cools down to a safe operating temperature Power Indicator The diagnostic L E D illuminates when the amplifier is on and receiving power Built in Crossover The A3 2200 5 amplifiers include a built in variable crossovers The A3 2200 5 also offers the same frequency selection with the option of low or high pass filtering Power and Speaker Distribution Blocks Heavy gauge bare wire distribution blocks are provided for maximum power and signal transfer with minimal resistance Bass Boost For added low frequency performance the amplifiers are equipped with a variable O 12 dB bass boost 45Hz Line out Full range line outputs have been provided for convenient connection to additional amplifi ers in the system The outputs are buffered to reduce signal loss Please note that the amplifier s input level adjusts these level outputs Power Fusing This protects the amplifier against short circuits and excessive current Remote Turn on Automatically turns amplifier on when connected to the head unit s remote output The amplifier will turn on and off with the head unit to save current consumption This control also operates the reset circuit for the amplifier s protection It must be connected with the head unit in order to reset protection circuits Adjustable Input Sensitivity Allows you to fine tune the l
6. ls while driving will impair your ability to hear traffic sounds and emergency vehicles Use common sense when listening to your system Serial Model SAFETY PRECAUTIONS Fuse amplifiers power wire at the battery Be sure to fuse the power wire within 12 of the car s battery This will protect the car s battery in case of a short circuit between the power amplifier and battery THIS ISA MUST the amplifier s built in fuse will only protect the power amplifier not the car s battery Use high grade wire connectors To ensure maximum power transfer and secure safe connections it is recommended to use high grade barrier spades for connection at amplifier and terminal rings for connec tion at battery Do not run any wires underneath vehicle Exposed wires have a chance of being cut or damaged It is best to run all wires through the vehicle under the carpet and or side panels This lends to a cleaner installation and less risk of damage Use caution when mounting amplifier Remember there are many electrical wires gas lines vacuum lines brake lines as well as a gas tank in the automobile Make sure you now where they are when mounting the amplifier to avoid puncturing lines shorting wires or drilling holes in the gas tank Run signal wires away from electrical wires To avoid possibility of induced noise from the car s electrical system i e popping noises or engine noise run wires away from the car s elec
7. ntilation in order to dissipate the heat it develops during operation Two popular mounting locations are in the trunk or under the seat Select the location in which you wish to mount the amplifier Use caution when mounting amplifier there are many wires gas lines vacuum lines brake lines as well as a gas tank in the automobile Make sure you know where they are when mounting the amplifier to avoid puncturing lines shorting wires or drilling holes in the gas tank Once you are ready use a pencil to mark the mounting holes in the bottom panel After you have marked the locations of the holes move amplifier out of the way and drill small starter holes to make the tapping screws easier to install Use provided screws to tighten down the amplifier SPEAKER CONNECTIONS A3 2200 5 Make the speaker connections using speaker wire that is at least 16 gauge or heavier As with any audio component proper phasing of the amplifier and speakers is essential for strong bass response When connecting make sure that positive from the amplifier is connected to the positive of the speaker and the same for negative CAUTION In the bridged mode the amplifier must see a 4 Ohm load or higher Any lower than 4 ohms will cause the amplifier to overheat and possible cause permanent damage to the amplifier Speaker Output oeeerees opi O Ch141 O Och2 renee cha j Bridged _ L_ Bridged Power
8. omponents at same point Try different grounding point Bad RCA cable s Use High Quality shielded RCA cables Low Vehicle charging system and or battery Red Protection L E D illuminated Speaker short Speaker grounding out Impedance too low Overheating 10 SOLUTION Replace Replace Check connection Check connection Check for ground w meter Set to center position Confirm correct setting Replace Re adjust Confirm correct setting Check for ground w meter Ground at same point Change for better ground Replace Rejects inducted noise Fix and or replace Check speakers connection for short circuit Make sure speaker wires Do not touch chassis ground Check speaker impedance Check mounting location for Adequate air circulation speaker impedance too low SIGNAL CONNECTIONS Connect the RCA output of the head unit AM FM cassette player CD or DAT to the RCA input terminals of the amplifier To make these connections we recommend high quality RCA cables which are available at your local car audio retailer Run signal wires away from electrical wires to avoid possibil ity of induced noise from the car s electrical system i e popping noises or engine noise Optional full range line out connection to addition addition in the system X Over Highpass InputLevel Highpass X Over Lowpass InputLevel Ch3 amp 4 Ch1 amp 2 high full 7 7 high full BP Z e e e e e 50H
9. torting It is very important when making these adjustments that you do not over drive the speakers at point of distortion this will cause permanent damage to the speakers If you are unable to achieve volume before distortion you will need to adjust gain control in this case you would reduce the gain The gain controls should be adjusted very slowly It may help to have another person to assist you by adjusting the gain controls while you listen for distortion Input Level Min Max TROUBLE SHOOTING THE SYSTEM We have put together this trouble shooting guide if you experience problems after installing the amplifier Please keep in mind that the majority of problems incurred are caused by improper installation and not the equipment itself In addition there are many components in the system that could cause various signal problems such as inducted electrical noise and engine noise Before you can properly address the problem you must first find the component that is causing the problem This will take patience and a process of elimination LOOK FOR No Output Blown fuse Bad RCA Cable s 12V at power terminal 12V at remote terminal Grounding point clean and tight Head Unit s fader not in center position Master amp Slave settings Low Output Check level adjustments Re adjust Bad RCA cable s Improper level matching Master amp Slave settings Engine Noise Grounding points are clean and tight Ground all c
10. trical wiring Make all ground wires as short as possible and at the same point In order to reduce the chance of ground loops i e engine noise make the grounding wire as short as possible to reduce the wire s resistance Also when using multiple components make sure all units are grounded at the same point Avoid sharp edges when running the wires To avoid the possibility of power signal or speaker shorts be careful not to allow the amplifiers wires to come in contact with sharp edges Use a grommet to protect the wire when running through the fire wall
11. z z 0 2V 50Hz _ 150Hz power 250Hz 4kHz 6V 0 2V e e 30Hz 150Hz OdB 10dB 6V Bass Remote Lowpass BassBoost InputL SIGNAL CONNECTION 5 Channel Amplifier using 2 pair of RCA inputs ADJUSTMENTS AND SETTINGS A3 2200 5 The A3 2200 5 amplifiers are equipped with built in variable crossover networks allowing you to select the crossover mode i e Low Pass Full High Pass or On Off and the desired crossover point For example if you wish to drive a pair of subwoofers you can select the Low Pass setting on the amplifier to filter out high frequencies This will send only low frequencies to your subwoofers see example settings below The crossover point should be determined by the speakers operating range Please refer to speaker manufactures recommended crossover point Filter selection for channel 1 amp 2 Filter selection for channel 3 amp 4 Channel mode selection X Ovir Highpass InputLevel Highpass X Ove Lowpass In utLevel Ch1 amp Ch3 amp 4 high full Z Z high full BP gt J 50Hz _ 4kHz 6V 0 2V 50Hz _150Hz Power 250Hz 4kHz 6V 0 2V i e 3 30Hz 150Hz OdB 10dB 6V N WC Bass Remote Lowpass BassBoost InputLevel chs MODE o o 2 4 5 MOUNTING LOCATION Before you start the installation it will be necessary to find a mounting location for the ampli fier Find a location in which the amplifier will receive adequate ve
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