Precision_Power_A Series 2 Channel Amplifiers
Contents
1. added expense and installation of an outboard crossover The speaker outputs of your amplifier are high pass low pass or all pass according to the HP LP FULL switch on the front endplate You would choose low pass middle position of switch to use this amplifier for subwoofers choose high pass left position of switch or full right position of switch to use this amplifier for full range speakers The RCA outputs are controlled by a separate HP LP FULL switch and are always independent of the speaker output crossover As well as being able to independently select HP LP FULL your new DCX amplifier allows independent selection of frequencies from 30Hz 4kHz see Crossover Detent Chart in this guide A500 2 A800 2 A1000 2 Speaker Output 12dB Octave Detented HP LP 30Hz 4kHz Low Level Output 12dB Octave Detented HP LP QBASS PLUS up to 18dB 30 36 44 60Hz A800 2 and A1000 2 only CROSSOVER DETENT CHART Low Pass High Pass Detent Frequency Hz Frequency Hz 3dB 3dB 1 28 52 2 28 52 3 30 52 4 30 56 5 30 56 6 32 60 7 34 64 8 36 72 9 38 76 10 42 80 11 46 88 12 50 92 13 52 100 14 54 116 15 60 132 16 66 148 17 76 168 18 88 192 19 100 216 20 116 244 21 136 284 22 144 348 23 168 404 24 198 468 25 240 512 26 286 564 27 310 624 28 340 700 29 380 800 30 424 932 31 484 1036 32 576 1144 33 632 1300 34 748 1504 35 932 1812 36 1076 2196 37 1428 2840 38 1700 4116 39 24362. come back on In this case ensure that there is nothing blocking the normal convection airflow of the amplifier No obstruction should be within 2 of the amplifier on all sides Note Low battery voltage will cause the amplifier to run warmer and possibly damage the amplifier 20 TROUBLESHOOTING NO SOUND Is the LED illuminated YES NO Check Power and Remote turn on wire for voltage Make sure the ground wire is secure STILL NO SOUND 2e See your Authorized Precision Power Dealer or call 1 800 62POWER SOUND IN ONE CHANNEL ONLY Reverse the left and right speakers by unplugging the speaker connector turning it over and plugging it back in SOUND IS NOW IN OPPOSITE CHANNEL SAME CHANNEL Reverse RCA inputs Problem is in the speaker or speaker wire of the silent channel SOUND IS NOW IN OPPOSITE CHANNEL SAME CHANNEL Reverse RCA inputs Problem is in the amplifier at head unit See your local Authorized Precision Power Dealer or call 1 800 62POWER SOUND IS NOW IN OPPOSITE CHANNEL SAME CHANNEL Problem is in the head Problem is in the RCA unit or before the amplifier cables 21 LIMITED TWO YEAR CONSUMER WARRANTY Directed Electronics promises to the original purchaser to replace this product should it prove to be defective in workmanship or material under normal use for a period of two years from the date of purchase by the dealer as indicated by the date code marking of the product PROVIDED
3. the product was installed by an authorized Directed dealer During this two year period there will be no charge for this replacement PROVIDED the unit is returned to Directed shipping pre paid If the unit is installed by anyone other than an authorized Directed dealer the warranty period will be 1 year from the date of purchase by the dealer as indicated by the date code marking of the product During this 1 year period there will be no charge for this replacement PROVIDED the unit is returned to Directed shipping pre paid This warranty is non transferable and does not apply to any unit that has been modified or used in a manner contrary to its intended purpose and does not cover damage to the unit caused by installation or removal of the unit This warranty is void if the product has been damaged by accident or unreasonable use neglect improper service or other causes not arising out of defects in materials or construction ALL WARRANTIES INCLUDING BUT NOT LIMITED TO EXPRESS WARRANTY IMPLIED WARRANTY WARRANTY OF MERCHANTABILITY FITNESS FOR PARTICULAR PURPOSE AND WARRANTY OF NON INFRINGEMENT OF INTELLECTUAL PROPERTY ARE EXPRESSLY EXCLUDED TO THE MAXIMUM EXTENT ALLOWED BY LAW AND DIRECTED NEITHER ASSUMES NOR AUTHORIZES ANY PERSON TO ASSUME FOR IT ANY LIABILITY IN CONNECTION WITH THE SALE OF THE PRODUCT DIRECTED HAS ABSOLUTELY NO LIABILITY FOR ANY AND ALL ACTS OF THIRD PARTIES INCLUDING ITS AUTHORIZED DEALERS OR INSTALLERS Unit must be retu
4. 4540 40 2830 4728 41 2980 4728 ADJUSTING INPUT GAIN 1 Adjust all amplifier input gain controls to just above minimum sensitivity fully counterclockwise 2 Using the cleanest music source CD playing turn up the head unit source volume until you can hear distortion Now turn it down a bit until you cannot hear the distortion usually just below full volume 3 Increase the amplifier gain clockwise until the onset of audible distortion Then decrease the gain to the point just before the distortion starts This setting minimizes background noise and prevents overload 4 Repeat step 3 for any remaining independently controlled amplifiers rear and subwoofer gain controls in the system HIGH MASS INTERNAL HEATSINK The unique heatsink on your amplifier has been designed with fins on the inside of the aluminum extrusion This allows for the transfer of heat from the circuitry to the heatsink fins and out through the vents in the endplates Be sure you provide ample space around the amplifier for cooling at least 2 on all sides AP IV PROTECTION CIRCUIT Short Circuit Protection engaged The amplifiers will turn off and try to come back on immediately The amplifier will cycle like this indefinitely with blips of sound each time If this is the case check your speakers and wiring for low impedance and short circuits Thermal Protection engaged The amplifiers will turn off and after a minute or so will
5. Locate the speaker remote turn on PowerLock connector Using a hex wrench loosen the screws on the upperside of the connector Insert the speaker leads into the end and secure with the hex wrench Check to be sure you ve maintained proper polarity before securing each wire Note The amplifier comes with the connector inserted into the amplifier with the wire clamping screws in the up position as shown below Use a 2mm hex head wrench to secure the wires to the connector If the connector needs to be unplugged from the amplifier use a 2 5mm hex head wrench to remove the retaining screw from the connector set aside and save the retaining screw The two negative outputs are common to each other as are the two positive outputs A speaker may be connected to either terminal Speaker POWERLOCK Connector 2mm hex wrench Left Speaker Left Speaker Remote turn on Right Speaker Right Speaker Remove retaining screw with a 2 5mm hex wrench GROUND WIRING Locate an area near the amplifier s that is metal and clean an area about the size of a quarter down to bare metal Inspect the area around and underneath to be sure you will not drill into wires brake or fuel lines etc Drill a pilot hole in the middle of this area Terminate the ground wire with a ring connector and attach it to the bare metal using a 8 sheet metal screw and washer or preferable a bolt nut and a star washer not supplied We suggest c
6. al to prevent a short to ground and potential damage to wiring and equipment Some vehicle radios have an anti theft feature where when the radio is removed from 12V the radio will no longer function and must be code reset N Positive E N Battery Factory Ground wire may be A Terminal need to be replaced if it is small frayed or broken SN l AN I I Fuse must be i installed within Drill a hole in the firewall fees ness SURV UTE a y 1900 battery and use a rubber grommet to keep wire from shorting Run signal cables RCAs and remote turn on lead Run the cables under the carpet near the side of the vehicle Be careful not to drill or screw into the wires when you replace the trim For Systems over 300 W Run a ground cable from the amp to the battery Instead of grounding to the rear chassis Avoid sharp edges that could chafe through the insulation I For Systems under 300 W Ground Wire to solid metal of rear N r chassis a A 7 Note The cables running from the battery to the rear of the car should be installed on the side of the car opposite to the antenna When using 16 gauge wire or larger run the speaker wires from the amplifier location through the vehicle to the speakers Observe the same precautions for routing these wires that you followed for running the power and remote turn on wires Cut off excess and using wire strippers strip 1 4 inch of insulation
7. dance Stereo Load Impedance Bridged Input Topology Conversion Efficiency Frequency Response Linear Bandwidth Input Sensitivity RCA Output Jacks Input Impedance Supply Voltage Damping Factor Slew Rate Crossovers Type Range Crossover Slope QBass n a to A500 2 QBassPlus remote A500 2 option Protection Functions 2 ohm 4 ohm MONO 2 X 125 1 X 250 2 X 200 1 X 400 2 X 250 1 X 500 2 8 ohms 4 8 ohms Balanced differential gt 50 2 ohms max power 20Hz 200Hz 0 25dB 10 50kHz 3dB 150mv 12 Volts RMS HP LP Full 30Hz to 4kHz 20 000 Ohms 9 16 Volts gt 250 A500 2 gt 1000 A800 2 gt 350 A1000 2 gt 20V us HP off 12dB switch 30Hz to 4kHz LP off 12dB switch 30Hz to 4kHz 12dB octave Variable 0 to 12dB boost 40Hz Variable 0 to 18dB boost Variable frequency 30Hz 36Hz 44Hz 60Hz Short and thermal Fuse Requirements You will need to install an in line fuse or circuit breaker in the power wire within 18 of the battery This fuse or circuit breaker is to protect your vehicle from fire in case the power wire shorts to the vehicle body If you are only using one amplifier use the fuse rating indicated in this chart If you are using more than one amplifier add up the fuse ratings for all the amplifiers This sum is the rating for your fuse or circuit breaker You may also want to add a power distribution block near your amplifiers to distribute large gauge power cable to mult
8. e RCA outputs then add a set of RCA plugs available at your dealer to your front or rear set of speaker leads see drawing below Plug them into the input jacks and push in the 12dB input attenuation switch SOURCE Headunit al Jp RIGHT input TED Pa ADVANCED INSTRUMENTATION INPUT The Advanced Instrumentation Input has been incorporated from the legendary Precision Power 2500F1 This circuit completely isolates the chassis ground from the audio circuit of the amplifier and reduces noise radiated into your signal cables by up to 40dB This is equivalent to a noise reduction of approximately one hundred times what the noise level would be without this circuitry It provides all the benefits of a true balanced line without the need of any special cables see diagram below This type of input works with any conventional RCA cables music NO noise noise cancels 47 Ohms Isolation QBASS PLUS SPECIFICATIONS Note Not available on the model A500 2 amplifier QBASS PLUS Up to 18dB of boost with selectable center frequency at 30Hz 36Hz 44Hz or 60Hz with a Q factor of 2 Optional Q BASS REMOTE This boost control can be mounted in the dash and will supersede the boost control on the amplifier endplate QBASS PLUS QBASS REMOTE On A800 2 and A1000 2 amplifiers we ve taken bass control to a higher level with QBASS PLUS The two QBASS switches labeled 1 and 2 on the front end of the am
9. into the appropriate hole and tighten the screws The Power Ground PowerLock will accommodate 4 gauge wire for these amplifiers Note The amplifier comes with the connector inserted into the amplifier with the wire clamping screws in the up position as shown below Use a 3mm hex head wrench to secure the wires to the connector If the connector needs to be unplugged from the amplifier use a 2 5mm hex head wrench to remove the two retaining screws from the connector set aside and save the retaining screws 3mm hex wrench Remove retaining screw with a 2 5mm hex wrench Connection to amplifier FRONT PLATE DIAGRAM 1 Cooling Plenums Maintain a minimum 2 clearance around cooling plenums for proper amplifier cooling 2 Speaker Remote Connector The PowerLock speaker connector 3 Output Xover Freq Control Use this control to adjust the sub bass output signal crossover frequency from 30Hz to 4kHz See the Crossover Frequency chart in this manual 4 Output Xover FULL LP HP Switch Select the desired crossover setting HP LP FULL for the signal of the RCA outputs 5 QBASS Freq Use this switch to set the QBASS frequency applicable to model A800 2 and A1000 2 refer to QBass Plus QBass Remote section 6 12dB Input Attenuation Push this switch IN for high voltage 4V 12V capability This button pushed IN must be used for speaker level input on common gro
10. iple amplifiers Amp Fuse A500 2 25 A Asoo 10007 Dimensions Length Width Height A500 2 12 12 10 42 2 4 A800 2 24 34 1 0 1 2 34 A1000 2 27 3 8 10 12 2 34 AMPLIFIER STATUS LEDS GZ Precision Powe lt a S Y g The LEDs provide the following indications 1 Power These LEDs illuminates the center Precision Power logo background when the amplifier power is turned on 2 Short These LEDs behind the PPI logo will flash to indicate a short on the output 2 Thermal These LEDs behind the PPI logo will extinguish if the amplifier is in thermal shutdown protection Note Read the AP IV Protection Circuit section for additional information regarding Short and Thermal protection TOOLS PARTS FOR INSTALLATION NOTE TOOLS ARE NOT SUPPLIED Small flat blade screwdriver Phillips screwdriver 2 or medium sized Wire cutters Wire strippers 4 6 round head screws and 1 8 sheet metal screw or nut bolt flat washer star washer see details 2 Ring connectors large enough to accommodate your method of grounding In line fuse or circuit breaker Power and ground wire Speaker wire 12 16 gauge Grommets sized to work with the power wire you plan to use in your installation Tube of silicone sealant WIRING Before beginning disconnect the negative terminal of the battery prior to connecting the amplifier to the positive 12V termin
11. ost other amplifiers This formula is to be used as a guideline Using wire of a larger gauge can only improve the current transfer of your system Do NOT use smaller wire gauge Total RMS output X 1 5 Total Input Wattage Total Input Wattage Current Draw in Amps Supply Voltage Example A PPI amplifier has two channels at 125 watts per channel RMS rating into 4 ohms 125X2 250 watts You would use the formula in the following way 250 W X 1 5 375 watts a 31 25 Amps total current draw If the same amplifier is driven into a 2 ohm stereo or 4 onm mono load double it s 4 ohm RMS rating These amplifiers will effectively double their power at this load 250W X 1 5 X2 750 watts ar 62 5 Amps total current draw If you are using more than one amplifier add up the total current draw for all of them and choose the appropriate gauge based on the grand total POWER WIRE SIZE A minimum of 8 gauge or a maximum of 4 gauge wire is recommended dependent on the application The ground wire must be the same gauge as the power wire POWERLOCK CONNECTORS Once you have run both the power and ground wires then connect the cables to the amplifier Cut off excess wire and using wire strippers strip the ends of the power and ground cables approximately 1 4 inch Locate the PowerLock power and ground connector supplied Using a hex wrench loosen the screws before attempting to insert the cable wires Insert the wires
12. plifier allow you to select one of four frequency centers 30Hz 36Hz 44Hz and 60Hz On the rear end plate you will find the QBASS level control and plug in for an optional QBASS REMOTE dash mounted level control Adjust the level control clockwise for up to 18dB of boost at your selected frequency Q BASS PLUS 30Hz 36Hz 44Hz 60Hz CAUTION QBASS PLUS should only be used in systems with a strong subwoofer section 18dB is a tremendous amount of bass boost and may damage your speakers or create excessive distortion if abused The optional QBASS REMOTE This boost control can be mounted in the dash and will supersede the boost control on the endplate These Precision Power amplifiers no longer need an optional QPORT to connect multiple QBASS PLUS equipped amplifiers while using one QBASS REMOTE The new QBASS PLUS circuitry in the A800 2 and A1000 2 amplifiers is now positioned before the crossover circuit In doing this Precision Power engineers have allowed you to daisy chain your RCA output to the next amplifier input causing the first amplifiers QBASS REMOTE to become the master control amplifier See your authorized Precision Power dealer for more information TC X CROSSOVER Your new amplifier has a TC X Crossover Total Control X over 30Hz 4kHz see this guide for Crossover Chart 12dB per octave phase correlated crossover built in to provide superior system flexibility without the
13. recisionPower Absolutely State of the Art Mobile Audio s E AMPLIFIER MODELS A800 2 A1000 2 A500 2 TABLE OF CONTENTS CONAMA tiara 2 DOI Ci a eee RA OR OA REO EPR RRR ERO SASS RE eS 2 GAUAN a o Sere aa nee a ee weed 2 POA OG a a allies ligt ah ceil Rela ct a la ade Ne a 2 Whnals INCAS es vic 04 4000 6 3 4259 rias eee aaa ese 3 CEACSPeCIIGAlONS ra oe oR ha eae es tele et Pee oxen 3 SPECIICALIONS ua EA te te eee eee eee 4 Arnplitier Status LEDS 02 e ne ee oh ee a pee cae Gee 6 Tools Parts for Installation 2 foe oka sa 7 A A Ce a epee S eae mle a8 once 7 GOUNA VIMO nada ahem ENS 9 Charging System irarri rastureni astra 10 Cu Unmrent DEIN dis ia ee 10 Power Witte SIZO at gone New be timate a dl Wat aes 11 PowerLock Connectors n n sssaaa cece eee ees 12 Front Fale Diada rr rs ae E 13 End Flate Diagrami dos PASA 14 A e A E Oe ee mid Gost A EE 15 Advanced Instrumentation Input o o oooooooooo 15 QBASS PLUS Specifications oo ooooommmooo 16 QBASS PLUS QBASS Remote 0 0 00 cee eens 17 TER CroSSOVel vec te tart ate ee ASME AAA 18 Crossover Detent Chart 0 0 0 0 0c eee eee eee 19 AG UStinG IMPut GaANT ssie iee eg a ee a matte nat bien cand ate 20 High Mass Internal Heatsink 0000 0000 20 AP IV Protection Circuits ccs dc o0 cam aex cane daa 20 MOUDIESNOCIING 2505 44 6 oat ns wed Catia nats ote ed weed 21 CONGRATULATIONS Thank you for choosing Preci
14. rimping and soldering this connection After the em Ee connection is complete coat the area _ _ a on both sides with silicone or some similar material to prevent rust from developing on the bare metal If your total current draw is over 80 amps or total power is over 500 watts Keep the ground and power 9 wires as close together as possible and use the same gauge wire for both This will ensure that you have a good ground path and may eliminate such potential problems as engine noise and overheated amplifiers CHARGING SYSTEM If your total current draw is over 100 amps or total output power is over 600 watts you are probably exceeding the capability of your charging system Dimming lights and fluctuating voltage are solid indicators that you need to upgrade your alternator battery or both You should also check the condition and current capacity of the stock battery negative cable and connections and replace or upgrade as necessary Keep in mind that your amplifiers simply convert electrical energy to acoustical energy and any electrical deficiency will compromise the performance of your sound system For more information about charging system upgrades see you local authorized Precision Power Dealer or call Precision Power Technical Support at 1 800 62POWER x2033 CURRENT DRAW The following is a basic formula to be used as a guide to determine current draw Your new PPI amplifier is more efficient than m
15. rned to Directed postage pre paid with consumer s name telephone number and address authorized dealer s name and address and product description IN ORDER FOR THIS WARRANTY TO BE VALID YOUR UNIT MUST BE SHIPPED WITH PROOF OF INSTALLATION BY AN AUTHORIZED DIRECTED DEALER ALL UNITS RECEIVED BY DIRECTED FOR WARRANTY REPAIR WITHOUT PROOF OF DIRECTED DEALER INSTALLATION WILL BE COVERED BY THE LIMITED 1 YEAR PARTS AND LABOR WARRANTY Note This warranty does not cover labor costs for the removal and reinstallation of the unit BY PURCHASING THIS PRODUCT THE CONSUMER AGREES AND CONSENTS THAT ALL DISPUTES BETWEEN THE CONSUMER AND Directed SHALL BE RESOLVED IN ACCORDANCE WITH CALIFORNIA LAWS IN SAN DIEGO COUNTY CALIFORNIA DET is a proud member of x Designed and Engineered in the USA by ASLA Di Lod SC Directed Electonics is an SO 8001 registered company a ES 2005 Directed Electronics All rights reserved G48320 25 30 12 05
16. sion Power audio equipment Designed and engineered in the USA this product combines innovative technology with the finest materials to consistently deliver Absolutely State of the Art performance sound quality reliability and value This Precision Power product reflects our commitment to offer you unparalleled performance and quality for years of dependable service and listening enjoyment SERVICE Do not attempt to service Precision Power products yourself Performing maintenance on your audio equipment will void the warranty Many parts of the Precision Power product are custom built to our specifications Our factory parts are not made available to anyone else nor are they for sale Our goal is to make sure that your Precision Power product will always sound as good as the day it was purchased Contact your Authorized Precision Power Dealer about obtaining any warranty service through Precision Power See the Warranty on the outside of the back cover CAUTION Extended use of a high powered audio system may result in hearing loss or damage While Precision Power systems are capable of Concert Level volumes with incredible accuracy they are also designed for you to enjoy at more reasonable levels all of the sonic subtleties created by musicians Please observe all local sound ordinances FEATURES Advanced Instrumentation Input Stage 24dB Octave HP LP FULL 30 4kHz Crossover Independent Line Outp
17. und head units or for high voltage line drivers 7 Gain Use this control to match the output level of the source unit to the amplifier 8 Input Plug in the RCA leads from your source here 9 Xover Adjustment Adjusts the crossover between 30Hz and 4kHz 10 Xover FULL LP HP Switch Select the desired crossover setting FULL LP HP 11 QBass Use this switch to set the QBASS frequency applicable to model A800 2 and A1000 2 On the A500 2 this is the QBass frequency control adjustment 12 RCA Outputs RCA outputs provide HP LP FULL 30 4kHz signal to another amplifier END PLATE DIAGRAM QBASS REMOTE 1 Cooling Plenums Maintain a minimum 2 clearance around cooling plenums for proper amplifier cooling 2 Power Ground PowerLock Connect your power and ground to this Power Ground PowerLock connector Note Item descriptions 3 and 4 only apply to the A800 2 and A100 2 amplifiers 3 QBASS REMOTE Plug in the data cable from the optional QBASS REMOTE dash mounted level control here The remote level control will bypass the amplifiers on board QBASS control 4 QBASS Level Control Controls bass boost centered at 40Hz with up to 18dB of boost On the A500 2 this adjustment is on the control panel see previous figure INPUTS There are two sets of RCA jacks on the front end of your amplifier The RCA cables from your source unit go in the set labeled INPUTS If your source unit doesn t hav
18. ut Crossover 30 4kHz PWM Power Supply Triple Darlington Output Stage AP IV Protection Circuity QBASS Bass Boost High Voltage Input Capability with 12dB Attenuation Switch Gold Plated RCA Input and Output Connectors PowerLock Speaker and Power Wire Connectors WHAT S INCLUDED Amplifier with speaker and power plugs mounted 4 Mounting screws and washers 2mm hex wrench 2 5mm hex wrench 3mm hex wrench CEA SPECIFICATIONS A500 2 Power Output 80 Watts RMS x 2 at 4 ohms and lt 1 THD N Signal to Noise Ratio 70 dBA reference 1 Watt into 4 ohms Ss power Stay gt 4 STi te Any SA Ubliant Y AA Q CEp 200 Additional Power Output 125 Watts RMS x 2 at 2 ohm at 14 4 Supply lt 1 THD N A800 2 Power Output 125 Watts RMS x 2 at 4 ohms and lt 1 THD N Signal to Noise Ratio 88 dBA reference 1 Watt into 4 ohms power Sp se ZM Es Ap S ant Y Ali N EAT mA lt CEA 20 a Additional Power Output 220 Watts RMS x 2 at 2 ohm at 14 4 Supply lt 1 THD N A1000 2 Power Output 230 Watts RMS x 2 at 4 ohms and lt 1 THD N Signal to Noise Ratio 92 dBA reference 1 Watt into 4 ohms power Sa Se Ny Any z vat E lia aa CEA 29 Additional Power Output 325 Watts RMS x 2 at 2 ohm at 14 4 Supply lt 1 THD N SPECIFICATIONS Nominal Power Ratings MODEL 4 ohm A500 2 2X75 A800 2 2X 125 A1000 2 2 X175 General Specifications Load Impe
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