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Precision Power A800/2 - page 1
AMPLIFIER MODELS A500/2 A800/2 A1000/2 ...
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Precision Power A800/2 - page 2
T ABLE OF CONTENTS Congr atulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Ser vice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 F eatures . . . . . . . . . . . . ...
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Precision Power A800/2 - page 3
CONGRA TULA TIONS Thank y ou f or choosing Precision P o wer TM audio equipment. Designed and engineered in the USA, this product combines innov ative technology with the finest materials to consistently deliv er Absolutely State of the Ar t ™ perf ormance, sound quality , reliability , and v alue . This Precision P o wer TM product reflects our ...
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Precision Power A800/2 - page 4
High V oltage Input Capability with -12dB Atten uation Switch. Gold Plated RCA Input and Output Connectors. Po w e r Lock TM Speak er and P ower Wire Connectors. WHA T’S INCLUDED Amplifier (with speak er and pow er plugs mounted) (4) Mounting scre ws and washers 2mm he x wrench 2.5mm he x wrench 3mm he x wrench CEA SPECIFICA TIONS 3 A A 5 5 0 0 0 ...
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Precision Power A800/2 - page 5
SPECIFICA TIONS Nominal Power Ratings MODEL 4 ohm 2 ohm 4 ohm MONO A500/2 2 X 75 2 X 125 1 X 250 A800/2 2 X 125 2 X 200 1 X 400 A1000/2 2 X 175 2 X 250 1 X 500 General Specifications Load Impedance (Stereo) 2–8 ohms Load Impedance (Bridged) 4–8 ohms Input T opology Balanced differential Con v ersion Efficiency >50% @2 ohms max pow er F reque ...
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Precision Power A800/2 - page 6
5 Fuse Requirements Y ou will need to install an in-line fuse or circuit break er in the pow er wire within 18” of the batter y . This fuse or circuit break er is to protect y our v ehicle from fire in case the po wer wire shor ts to the v ehicle body . If y ou are only using one amplifier , use the fuse rating indicated in this char t. If y ou a ...
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Precision Power A800/2 - page 7
AMPLIFIER ST A TUS LEDS The LEDs provide the f ollowing indications: 1. P ower - These LEDs illuminates the center Precision P o wer logo bac kground when the amplifier po wer is turned on. 2. Shor t - These LEDs behind the PPI logo will flash to indicate a shor t on the output. 2. Thermal - These LEDs behind the PPI logo will e xtinguish if the am ...
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Precision Power A800/2 - page 8
T OOLS/P ARTS FOR INST ALLA TION NO TE: T OOLS ARE NO T SUPPLIED . Small flat b lade scre wdriver Phillips scre wdriver (#2 or medium siz ed) Wire cutters Wire strippers 4 - #6 round head scre ws, and 1 - #8 sheet metal scre w . (or nut, bolt, flat washer , star washer) (see details) 2 - Ring connectors (large enough to accommodate y our method of ...
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Precision Power A800/2 - page 9
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 v ehicle to the speak ers . Obser v e the same precautions f or routing these wires that y ou f ollowed f or r unning ...
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Precision Power A800/2 - page 10
Note: The amplifier comes with the connector inser ted into the amplifier with the wire c lamping screws in the up position as shown belo w . Use a 2mm hex head wrenc h to secure the wires to the connector . If the connector needs to be unplug ged from the amplifier , use a 2.5mm he x head wrenc h to remo ve the retaining screw fr om the connector ...
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Precision Power A800/2 - page 11
wires as close together as possib le, and use the same gauge wire f or both. This will ensure that y ou ha v e a good g round path, and ma y eliminate such potential prob lems as engine noise and ov erheated amplifiers. CHARGING SYSTEM If y our total current dra w is o v er 100 amps ( or total output pow er is ov er 600 watts ), y ou are probab ly ...
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Precision Power A800/2 - page 12
375W = 31.25 Amps total current dra w 12V If the same amplifier is driven into a 2 ohm stereo or 4 ohm mono load, doub le it’ s 4 ohm RMS rating. These amplifiers will eff ectiv ely doub le their pow er at this load. 250W X 1.5 X2 = 750 watts 750W = 62.5 Amps total current dra w 12V If y ou are using more than one amplifier , add up the total cur ...
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Precision Power A800/2 - page 13
PO WER LOCK CONNECT ORS Once y ou ha v e run both the power and g round wires , then connect the cab les to the amplifier . Cut off e xcess wire, and using wire strippers, strip the ends of the power and g round cab les appro ximately 1/4 inch. Locate the Po w e r Loc k TM pow er and ground connector (supplied). Using a he x wrench, loosen the scre ...
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Precision Power A800/2 - page 14
FR ONT PLA TE DIA GRAM 1. Cooling Plenums: Maintain a minim um 2” clearance around cooling plenums f or proper amplifier cooling. 2. Speaker/Remote Connector: The P ower Loc k TM speak er connector . 3. Output Xo ver Freq. Control: Use this control to adjust the sub bass output signal crossov er frequency from 30Hz to 4kHz. (See the Crossov er F ...
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Precision Power A800/2 - page 15
QBass frequency control adjustment. 12. RCA Outputs: RCA outputs provide HP/LP/FULL 30-4kHz signal to another amplifier . END PLA TE DIA GRAM 1. Cooling Plen ums: Maintain a minimum 2” clearance around cooling plenums f or proper amplifier cooling. 2. P o wer/Gr ound Po w e r Loc k TM : Connect y our pow er and ground to this P ow er/Ground Po w ...
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Precision Power A800/2 - page 16
INPUTS There are two sets of RCA jac ks on the front end of y our amplifier . The RCA cab les from y our source unit go in the set labeled INPUTS . If your source unit doesn’t ha v e RCA outputs, then add a set of RCA plugs (a v ailab le at y our dealer) to y our front or rear set of speak er leads (see dra wing belo w). Plug them into the input ...
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Precision Power A800/2 - page 17
QB ASS PLUS SPECIFICA TIONS Note: Not a v ailab le on the model A500/2 amplifier . QB ASS PLUS TM Up to 18dB of boost with selectab le center frequency at 30Hz, 36Hz, 44Hz or 60Hz, with a Q-f actor of 2. Optional QB ASS REMO TE TM This boost control can be mounted in the dash and will supersede the boost control on the amplifier endplate. 16 ...
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Precision Power A800/2 - page 18
QB ASS PLUS/QB ASS REMO TE On A800/2 , and A1000/2 amplifiers, w e’v e tak en bass control to a higher le v el with QB ASS PLUS TM . The two QB ASS TM s witches (labeled 1 and 2) on the front end of the amplifier allow y ou to select one of f our frequency centers 30Hz, 36Hz, 44Hz and 60Hz. On the rear end plate y ou will find the QB ASS TM le v ...
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Precision Power A800/2 - page 19
TC-X CR OSSO VER Y our ne w amplifier has a TC-X Crossov er (T otal Control X-ov er ® ) 30Hz-4kHz (see this guide f or Crosso v er Char t).12dB per octa v e phase correlated crossov er built-in to pro vide superior system fle xibility without the added e xpense and installation of an outboard crossov er . The speaker outputs of y our amplifier are ...
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Precision Power A800/2 - page 20
CR OSSO VER DETENT CHART Detent # Low P ass F requency (Hz) @ -3dB High P ass F requency (Hz) @ -3dB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 28 28 30 30 30 32 34 36 38 42 46 50 52 54 60 66 76 88 100 116 136 144 168 198 240 286 310 340 380 424 484 576 632 748 932 1076 1428 170 ...
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Precision Power A800/2 - page 21
ADJUSTING INPUT GAIN 1. Adjust all amplifier input gain controls to just abov e minimum sensitivity (fully countercloc kwise). 2. Using the cleanest music source (CD) pla ying, tur n up the head unit source v olume until y ou can hear distor tion. No w tur n it do wn a bit until y ou cannot hear the distor tion (usually just below full v olume). 3. ...
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Precision Power A800/2 - page 22
TROUBLESHOO TING NO SOUND Is the LED illuminated? YES NO Chec k P ower and Remote tur n-on wire f or voltage . Mak e sure the ground wire is secure. STILL NO SOUND See your A uthor iz ed Precision P ower TM Dealer or call 1-800-62PO WER. SOUND IN ONE CHANNEL ONL Y Re v erse the left and right speakers b y unplugging the speak er connector , tur nin ...
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Precision Power A800/2 - page 23
LIMITED TW O YEAR CONSUMER W ARRANTY : Directed Electronics promises to the original purchaser , to replace this product should it prov e to be def ective in w orkmanship or mater ial under nor mal use , f or a period of two years from the date of purchase b y the dealer as indicated b y the date code marking of the product PRO VIDED the product wa ...
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