Instruction/ maintenance manual of the product A1200/4 Directed Electronics
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AMPLIFIER MODELS A600/4 A1200/4.
T ABLE OF CONTENTS Congr atulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Ser vice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Caution . . . . . . . . . . . . . .
CONGRA TULA TIONS Thank y ou f or choosing Precision P ower TM audio equipment. Designed and engineered in the USA, this product combines innov ativ e technology with the finest mater ials to consistently deliv er Absolutely State of the Ar t ™ perf or mance, sound quality , reliability , and v alue.
FEA TURES Adv anced Instrumentation Input Stage TC-X Cr ossover 24dB/Octa v e; HP/LP/FULL; 30-4kHz Crossov er Adaptiv e PWM P ow er Supply AP-IV Protection Circuity Fully Complementar y Darlington Out.
SPECIFICA TIONS Nominal Power Ratings MODEL 4ohm STEREO 2ohm STEREO 4ohm MONO A600/4 4 X 50 4 X 75 2 X 150 A1200/4 4 X 100 4 X 150 2 X 300 General Specifications F requency Response 20Hz - 20kHz P ow er Bandwidth 10Hz - 50 kHz T otal Harmonic Distor tion + N <0.
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 breaker is to protect y our v ehicle from fire in case the power wire shor ts to the v ehicle body .
AMPLIFIER ST A TUS LEDS The LEDs provide the f ollowing indications: 1. P ower - These LEDs illuminates the center Precision P ow er logo bac kground when the amplifier po wer is tur ned on. 2. Shor t - These LEDs behind the PPI logo will flash to indicate a shor t on the output.
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 .
WIRING Bef ore beginning, disconnect the negative (-) terminal of the batter y prior to connecting the amplifier to the positive (+) 12V terminal to pre vent a shor t to ground and potential damage to wiring and equipment.
Obser v e the same precautions for routing these wires that y ou f ollowed f or r unning the pow er and remote tur n on wires. Cut off e xcess and, using wire str ippers , strip 1/4-inch of insulation. Locate the front speak er/remote tur n-on P ower Loc k TM connector .
F or the rear channels, locate the f our ter minal speak er P ower Loc k TM connector . Using a he x wrench loosen the scre ws on the upperside of the connector . Inser t the speaker leads into the end and secure with the he x wrench. Check to be sure y ou've maintained proper polarity bef ore secur ing each wire .
CHARGING SYSTEM If y our total current dra w is ov er 100 amps ( or total output pow er is ov er 600 watts ), y ou are probab ly e xceeding the capability of your charging system. Dimming lights and fluctuating voltage are solid indicators that y ou need to upgr ade y our alter nator , batter y , or both.
load, doub le its 4 ohm RMS rating. These amplifiers will eff ectively doub le their pow er at this load. 1000W X 1.5 X2 = 3000 watts 3000W = 250 Amps total current dra w 12V If y ou are using more than one amplifier , add up the total current dra w f or all of them and choose the appropriate gauge based on the gr and total.
PO WER LOCK CONNECT ORS Once y ou ha v e r un both the pow er and ground 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 Lock TM pow er and ground connector (supplied).
suitab le subwoof er or center channel. Der iving the mono channel is accomplished b y using the Left Channel P ositiv e wire (L+) as the positiv e speaker wire and the Right Channel Negativ e wire (R-) as the negativ e speaker wire . Note: It is impor tant that a minimum 4 ohm impedance is obser v ed.
A600/4 FR ONT PLA TE DIA GRAM 1. Cooling Plenums: Maintain a minimum 2” clearance around cooling plenums f or proper amplifier cooling. 2. Rear Speaker Connector: Speaker P ower Loc k TM connector . 3. Fr ont Speaker/Remote Connector: Speak er P ower Loc k TM connector .
12. Rear Input INT/EXT Switch: Select the INT position if y ou want to use the inter nal signal path from the front crosso v er for the rear input, or the EXT position to use the e xter nal rear RCA input. 13. Sour ce HP/LP/FULL Switch: Select the desired setting.
A600/4 END PLA TE DIA GRAM 1. P ower/Gr ound Po w e r Lock TM : After y ou ha v e securely connected y our pow er and ground wires, plug in the P ower/Ground Po w e r Lock TM connector here. 2. Cooling Plen ums: Maintain a minimum 2” clearance around cooling plenums f or proper amplifier cooling.
4 & 5. QB ASS TM 1 and QB ASS TM 2 Freq.: Use these s witches, QB ASS TM 1 and QB ASS TM 2 to progr am the QB ASS PLUS TM circuit frequency . 6. -12dB Attenuation Switch: Push this s witch ‘IN’ f or high v oltage input (4V -12V) capability .
19. Output Sour ce HP/LP/FULL Switch: Select the desired crossov er setting, HP/LP/FULL f or the RCA output signal. 20. Output Crosso ver Freq. Contr ol: Use this control to adjust the output crossov er frequency from 30Hz to4kHz.
INPUTS There are two sets of RCA jac ks on the front end of your 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 ailable at y our dealer) to your front or rear set of speak er leads (see dra wing below).
A600/4, A1200/4 BLOCK DIA GRAM INPUT A TTENUA TION INPUT A TTENUA TION 21.
AD V ANCED INSTRUMENT A TION INPUT The Adv anced Instr umentation Input has been incor porated from the legendar y Precision P ower TM 2500F1 . This circuit completely isolates the chassis ground from the audio circuit of the amplifier and reduces noise radiated into y our signal cables b y up to 40dB.
QB ASS/QBASS PLUS SPECIFICA TIONS QB ASS TM ( A600/4 ) Up to 18dB of boost centered at 40Hz, with a Q-f actor of 2. QB ASS PLUS TM ( A1200/4 ) Up to 18dB of boost with selectab le center frequency at 30Hz, 36Hz, 44Hz or 60Hz, with a Q-f actor of 2.
CA UTION: QB ASS PLUS TM should only be used in systems with a strong subwoof er section. +18dB is a tremendous amount of bass boost and ma y damage your speak ers or create e xcessiv e distor tion if ab used. The optional QB ASS REMO TE TM : This boost control can be mounted in the dash and will supersede the boost control on the endplate.
25 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 Crossov er Char t).12dB per octa ve phase correlated crossov er b uilt-in to provide superior system fle xibility without the added e xpense and installation of an outboard crossov er .
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 .
INPUT COMBINE Y our multi-channel amplifier can use both front and rear outputs from y our head unit to maintain the ability to f ade front to rear , or y ou can run a single set of RCAs to the front inputs and push in the Rear Input INT/EXT s witch on the amplifier endplate to route the front signal to the rear channels as well.
28 Ther mal Protection engaged. The amplifiers will tur n off and after a minute or so will come bac k on (the status LEDs will e xtinguish). In this case, ensure that there is nothing b locking the normal con v ection airflow of the amplifier . No obstr uction should be within 2” of the amplifier on all sides.
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 ectiv e in workmanship or mater ial under normal use.
An important point after buying a device Directed Electronics A1200/4 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Directed Electronics A1200/4 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Directed Electronics A1200/4 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Directed Electronics A1200/4 you will learn all the available features of the product, as well as information on its operation. The information that you get Directed Electronics A1200/4 will certainly help you make a decision on the purchase.
If you already are a holder of Directed Electronics A1200/4, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Directed Electronics A1200/4.
However, one of the most important roles played by the user manual is to help in solving problems with Directed Electronics A1200/4. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Directed Electronics A1200/4 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
