Page 2 - TABLE OF CONTENTS
TABLE OF CONTENTS Congratulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 3 - Our factory parts are not made; CAUTION
CONGRATULATIONS Thank you for choosing Precision Power TM audio equipment. Designed and engineered in the USA, this product combinesinnovative technology with the finest materials to consistently deliver Absolutely State of the Art ™ performance, sound quality, reliability, and value. This Precision...
Page 5 - QBASS PLUS; Dimensions; Length
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 ...
Page 6 - FUSE REQUIREMENTS; Amplifier
5 FUSE REQUIREMENTS You will need to install an in-line fuse or circuit breaker in the powerwire within 18” of the battery. This fuse or circuit breaker is to protectyour vehicle from fire in case the power wire shorts to the vehiclebody. If you are only using one amplifier, use the fuse ratingindic...
Page 7 - AMPLIFIER STATUS LEDS
AMPLIFIER STATUS LEDS 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...
Page 8 - TOOLS/PARTS FOR INSTALLATION
TOOLS/PARTS FOR INSTALLATION NOTE: TOOLS ARE NOT SUPPLIED. Small flat blade screwdriverPhillips screwdriver (#2 or medium sized)Wire cuttersWire strippers4 - #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 ...
Page 9 - WIRING
WIRING Before beginning, disconnect the negative (-) terminal of the batteryprior to connecting the amplifier to the positive (+) 12V terminal toprevent a short to ground and potential damage to wiring andequipment. Some vehicle radios have an anti-theft feature wherewhen the radio is removed from 1...
Page 10 - Power; Lock; connector. Using a hex; Connector
Observe the same precautions for routing these wires that youfollowed for running the power and remote turn on wires. Cut offexcess and, using wire strippers, strip 1/4-inch of insulation. Locatethe front speaker/remote turn-on Power Lock TM connector. Using a hex wrench loosen the screws on the upp...
Page 11 - For the rear channels, locate the four terminal speaker; GROUND WIRING; soldering this connection. After the; or total power is over 500 watts; Rear Speaker
For the rear channels, locate the four terminal speaker Power Lock TM connector. Using a hex wrench loosen the screws on the upperside ofthe connector. Insert the speaker leads into the end and secure withthe hex wrench. Check to be sure you've maintained proper polaritybefore securing each wire. GR...
Page 12 - CHARGING SYSTEM; or total output power is; Precision; Technical Support; CURRENT DRAW; NOT
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 solidindicators that you need to upgrade your alternator, battery, or both.You should...
Page 13 - POWER WIRE SIZE; The ground wire must be the same gauge as the power wire.
load, double its 4 ohm RMS rating. These amplifiers will effectivelydouble 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 currentdraw for all of them and choose the appropriate gauge based on th...
Page 14 - POWER LOCK CONNECTORS; power and ground; will accommodate 4 gauge wire for these amplifiers.; AMPLIFIER BRIDGING
POWER LOCK CONNECTORS Once you have run both the power and ground wires, then connectthe cables to the amplifier. Cut off excess wire, and using wirestrippers, strip the ends of the power and ground cablesapproximately 1/4 inch. Locate the Power Lock TM power and ground connector (supplied). Using a...
Page 15 - MIXED MONO OUTPUT
suitable subwoofer or center channel. Deriving the mono channel isaccomplished 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 imp...
Page 16 - QBASS
A600/4 FRONT PLATE DIAGRAM 1. Cooling Plenums: Maintain a minimum 2” clearance around cooling plenums for proper amplifier cooling. 2. Rear Speaker Connector: Speaker Power Lock TM connector. 3. Front Speaker/Remote Connector: Speaker Power Lock TM connector. 4. QBASS TM Level Control: Controls bass...
Page 19 - and QBASS
4 & 5. QBASS TM 1 and QBASS TM 2 Freq.: Use these switches, QBASS TM 1 and QBASS TM 2 to program the QBASS PLUS TM circuit frequency. 6. -12dB Attenuation Switch: Push this switch ‘IN’ for high voltage input (4V-12V) capability. This button must be pushed ‘IN’ for usewith speaker level input on ...
Page 21 - INPUTS; input attenuation switch.
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 labeledINPUTS. If your source unit doesn’t have RCA outputs, then add aset of RCA plugs (available at your dealer) to your front or rear setof speaker leads (see drawing below...
Page 23 - ADVANCED INSTRUMENTATION INPUT
ADVANCED INSTRUMENTATION INPUT The Advanced Instrumentation Input has been incorporated fromthe legendary Precision Power TM 2500F1 . This circuit completely isolates the chassis ground from the audio circuit of the amplifierand reduces noise radiated into your signal cables by up to 40dB.This is eq...
Page 26 - Your new amplifier has a; Front
25 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 octavephase correlated crossover built-in to provide superior systemflexibility without the added expense and installation of an outboardcrossover. The speaker ...
Page 27 - CROSSOVER DETENT CHART; Low Pass
CROSSOVER DETENT CHART Detent # Low Pass Frequency (Hz) @ -3dB High Pass Frequency (Hz) @ -3dB 123456789 1011121314151617181920212223242526272829303132333435363738394041 282830303032343638424650525460667688 100116136144168198240286310340380424484576632748932 107614281700243628302980 5252525656606472...
Page 28 - Adjust all amplifier input gain controls to just above minimum; HIGH MASS INTERNAL HEATSINK
INPUT COMBINE Your multi-channel amplifier can use both front and rear outputsfrom your head unit to maintain the ability to fade front to rear, or youcan run a single set of RCAs to the front inputs and push in the RearInput INT/EXT switch on the amplifier endplate to route the frontsignal to the r...
Page 30 - LIMITED TWO YEAR CONSUMER WARRANTY:
LIMITED TWO YEAR CONSUMER WARRANTY: Directed Electronics promises to the original purchaser, to replace this productshould it prove to be defective in workmanship or material under normal use, fora period of two years from the date of purchase by the dealer as indicated by thedate code marking of th...
