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AMPLIFIER MODELS
A600/4 A1200/4
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TABLE OF CONTENTS Congratulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 CEA Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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CONGRATULATIONS TM Thank you for choosing Precision 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, TM 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 TM Do not attempt to service Precision Pow
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FEATURES Advanced Instrumentation Input Stage TC-X Crossover 24dB/Octave; HP/LP/FULL; 30-4kHz Crossover Adaptive PWM Power Supply AP-IV Protection Circuity Fully Complementary Darlington Output Stage TM QBASS Bass Boost (A600/4) TM QBASS Plus Bass Boost (A1200/4) High Voltage Input Capability with -12dB Attenuation Switch Gold Plated RCA Input and Output Connectors TM PowerLock Speaker and Power Wire Connectors Mixed Mono/Stereo Operation WHAT’S INCLUDED Amplifier (with speaker and power plugs m
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SPECIFICATIONS 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 Frequency Response 20Hz - 20kHz Power Bandwidth 10Hz - 50 kHz Total Harmonic Distortion + N <0.05% Input Topology Instrumentation Input Sensitivity 150mV - 12 Volts RMS (with -12dB pad) Input Impedance 40 kOhms Load Impedance (stereo) 2 - 8 Ohms Load Impedance (bridged) 4 - 8 Ohms Supply Voltage 9 - 16 Volts Damping Factor >150 Slew Rat
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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 powe
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AMPLIFIER STATUS LEDS 1 2 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.
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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 install
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WIRING Before beginning, disconnect the negative (-) terminal of the battery prior to connecting the amplifier to the positive (+) 12V terminal 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. 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. Wh
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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. Locate TM the front speaker/remote turn-on PowerLock connector. Using a hex wrench loosen the screws on the upperside of the connector. Insert the front 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
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Rear Speaker TM POWERLOCK Connector 2mm hex wrench Left Speaker - Left Speaker + Remove retaining Right Speaker + screw with a Right Speaker - 2.5mm hex wrench TM For the rear channels, locate the four terminal speaker 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. GROUND WIRING Locate an area near the
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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 ene
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load, double its 4 ohm RMS rating. These amplifiers will effectively double their power at this load. 1000W X 1.5 X2 = 3000 watts 3000W = 250 Amps total current draw 12V 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. 12
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POWER LOCK 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 TM 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 into the appropriate hole, and tighten the screws. The Power/Ground TM PowerLock will accommodate 4 gauge
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suitable subwoofer or center channel. Deriving the mono channel is accomplished by using the Left Channel Positive wire (L+) as the positive speaker wire and the Right Channel Negative wire (R-) as the negative speaker wire. Note: It is important that a minimum 4 ohm impedance is observed. If the impedance drops below 4 ohms while the amplifier is wired in the bridged configuration, the amplifier’s protection circuitry may engage. MIXED MONO OUTPUT The ability to run stereo speakers while simult
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A600/4 FRONT PLATE DIAGRAM " ! #
! " # 1. Cooling Plenums: Maintain a minimum 2” clearance around cooling plenums
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12. Rear Input INT/EXT Switch: Select the INT position if you want to use the internal signal path from the front crossover for the rear input, or the EXT position to use the external rear RCA input. 13. Source HP/LP/FULL Switch: Select the desired setting. HP/LP/FULL for the internal signal from the front channel to the rear channel when not using an external rear RCA input. 14. Rear Gain: Use this control to match the output level of the head unit to the rear channel of the amplifier. 15. Rear
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A600/4 END PLATE DIAGRAM TM 1. Power/Ground PowerLock : After you have securely connected your power and ground wires, plug in the Power/Ground TM PowerLock connector here. 2. Cooling Plenums: Maintain a minimum 2” clearance around cooling plenums for proper amplifier cooling. A1200/4 FRONT PLATE DIAGRAM " ! #
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TM TM 4 & 5. QBASS 1 and QBASS 2 Freq.: Use these switches, TM TM TM QBASS 1 and QBASS 2 to program the QBASS PLUS circuit frequency. 6. -12dB Attenuation Switch: Push this switch ‘IN’ for high voltage input (4V-12V) capability. This button must be pushed ‘IN’ for use with speaker level input on common ground head-units or for high voltage line drivers. 7. RCA Output: RCA outputs provide HP/LP/FULL 30-4kHz signal to another amplifier. 8. Rear Inputs: Plug in the rear RCA leads from your source
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19. Output Source HP/LP/FULL Switch: Select the desired crossover setting, HP/LP/FULL for the RCA output signal. 20. Output Crossover Freq. Control: Use this control to adjust the output crossover frequency from 30Hz to4kHz. 21. Output Crossover HP/LP/FULL Switch: Select the desired crossover setting, HP/LP/FULL for the internal output signal of the RCA output. Note: See the next section for the rear panel view of this endplate. A1200/4 END PLATE DIAGRAM !
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