PrecisionPower DCX 1000.4 - Manual

Page 2 - TABLE OF CONTENTS

TABLE OF CONTENTS Congratulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 4 - QBASS Plus; SPECIFICATIONS

FEATURES Advanced Instrumentation Input StageTC-X Crossover 12dB/Octave; HP/LP/FULL; 30-4kHz CrossoverAdaptive PWM Power Supply (DCX 300.4, DCX 600.4, DCX 800.5) AP-IV Protection CircuityFully Regulated PWM Power Supply (DCX 1000.4) Fully Complementary Darlington Output StageForced Air Thermal Manag...

Page 5 - QBASS; QBASS PLUS; Crossovers; Dimensions; Length; FUSE REQUIREMENTS; Amp

QBASS TM Up to +18dB @ 40Hz QBASS PLUS TM Up to +18dB Boost@30, 36, 44, or 60Hz Crossovers 12dB/Octave Crossover Frequency 30-4kHz Idle Current: DCX 300.4 2 AmpsDCX 600.4 2.5 AmpsDCX 1000.4 3 AmpsDCX 800.5 2.5 Amps Dimensions Length Width Height DCX 300.4 21-½” 10-½” 2-¾” DCX 600.4 24-¾” 10-½” 2-¾” ...

Page 6 - AMPLIFIER STATUS LEDS; The LEDs provide the following indications:

5 AMPLIFIER STATUS LEDS The LEDs provide the following indications: 1. Power - This LED illuminates RED when the amplifier power isturned on with the remote input (output muted). After a short timedelay this LED will turn GREEN (amplifier ready).2. Clip Output - This LED illuminates RED on the peaks...

Page 7 - QBASS/QBASS PLUS SPECIFICATIONS; Optional; QBASS REMOTE; TOOLS/PARTS FOR INSTALLATION

QBASS/QBASS PLUS SPECIFICATIONS QBASS TM ( DCX 300.4) Up to 18dB of boost centered at 40Hz, with a Q-factor of 2. QBASS PLUS TM ( DCX 600.4, 1000.4, 800.5) Up to 18dB of boost with selectable center frequency at 30Hz, 36Hz,44Hz or 60Hz, with a Q-factor of 2. Optional QBASS REMOTE TM ( DCX 600.4, 100...

Page 8 - 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 11 - CURRENT DRAW; DCX amplifier is more efficient than most; Total RMS output X 1.5 = Total Input Wattage; A DCX amplifier has two channels at 250 watts per; You would use the formula in the following way:; DCX amplifiers will effectively; double their power at this load.

CURRENT DRAW The following is a basic formula to be used as a guide to determinecurrent draw. Your new DCX amplifier is more efficient than most other amplifiers. This formula is to be used as a guideline. Using wireof a larger gauge can only improve the current transfer of yoursystem. Do NOT use sm...

Page 12 - AMPLIFIER BRIDGING; DCX multi-channel amplifiers are capable of

POWER WIRE SIZE A minimum of 8 gauge or a maximum of 4 gauge wire isrecommended dependent on the application. The ground wire must be the same gauge as the power wire. POWER LOCK CONNECTORS Once you have run both the power and ground wires, then connectthe cables to the amplifier. Cut off excess wir...

Page 13 - MIXED MONO OUTPUT; 2POWER for more information about passive crossovers.

modules. This feature permits the creation of a mono channel for asuitable subwoofer or center channel. Deriving the mono channel isaccomplished by using the Left Channel Positive wire (L+) as thepositive speaker wire and the Right Channel Negative wire (R-) asthe negative speaker wire. Note: It is ...

Page 14 - DCX 300.4 FRONT PLATE DIAGRAM; connector; PowerLock; Level Control: Controls bass boost, centered at 40Hz

DCX 300.4 FRONT PLATE DIAGRAM 1. Cooling Plenums: Maintain a minimum 2” clearance aroundcooling plenums for proper amplifier cooling.2. Rear Speaker Connector: Plug in the PowerLock TM connector here.3. Front Speaker/Remote Connector: Plug in the PowerLock TM connector here.4. QBASS TM Level Control...

Page 15 - DCX 300.4 END PLATE DIAGRAM; : After you have securely

to use the internal signal path from the front crossover for the rearinput, 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 rearchannel when not using an external rear RCA...

Page 17 - Note: See the next section for the rear panel view of this endplate.

setting. HP/LP/FULL for the speaker output signal of the frontchannel.13. Rear Source INT/EXT Switch: Select the INT position (switchin) if you want to use the internal signal path from the front crossoverfor the rear input, or the EXT position (switch out) to use the externalrear RCA input.14. Rear...

Page 18 - DCX 800.5 FRONT PLATE DIAGRAM

DCX 800.5 FRONT PLATE DIAGRAM 1. Cooling Plenums: Maintain a minimum 2” clearance aroundcooling plenums for proper amplifier cooling.2. Sub Speaker Connector: Plug in the PowerLock TM connector here.3. Rear Speaker Connector: Plug in the PowerLock TM connector here.4. Front Speaker/Remote Connector:...

Page 20 - : Plug in the data cable from the optional; dash mounted level control here. (The remote; : Up to 18dB of bass level control boost.; INPUTS

DCX 600.4, DCX 800.5, DCX 1000.4 END PLATE DIAGRAM 1. Power/Ground PowerLock TM : After you have securely connected your power and ground wires, plug in the Power/GroundPowerLock TM connector here. 2. QBASS REMOTE TM : Plug in the data cable from the optional QBASS REMOTE TM dash mounted level contr...

Page 23 - ADVANCED INSTRUMENTATION INPUT; PrecisionPower; bass control circuit.; control is

ADVANCED INSTRUMENTATION INPUT The Advanced Instrumentation Input has been incorporated fromthe legendary PrecisionPower 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 equi...

Page 26 - CROSSOVER DETENT CHART; Low Pass

25 CROSSOVER DETENT CHART Detent # Low Pass Frequency (Hz) @ -3dB High Pass Frequency (Hz) @ -3dB 123456789 1011121314151617181920212223242526272829303132333435363738394041 282830303032343638424650525460667688 100116136144168198240286310340380424484576632748932 107614281700243628302980 5252525656606...

Page 27 - INPUT COMBINE; DCX amplifier can use both front and rear; ADJUSTING INPUT GAIN; The unique heatsink on your; DCX amplifier has been designed with; FORCED AIR THERMAL MANAGEMENT

INPUT COMBINE Your multi-channel DCX amplifier can use both front and rear outputs from your head unit to maintain the ability to fade front torear, or you can run a single set of RCAs to the front inputs and pushin the Rear Input INT/EXT switch on the amplifier endplate to routethe front signal to ...

Page 28 - AP-IV PROTECTION CIRCUIT; Short Circuit Protection engaged: The; DCX amplifiers will turn off; Thermal Protection engaged. The; DCX amplifiers will turn off and

through the lower intake vents on the endplate. This cool air flowsbelow the circuit board, through the fan and across the internal fins,cooling the heatsink. The warm air is then forced out through theupper end-plate exhaust vents. AP-IV PROTECTION CIRCUIT Short Circuit Protection engaged: The DCX ...

Page 30 - LIMITED TWO YEAR CONSUMER WARRANTY:

LIMITED TWO YEAR CONSUMER WARRANTY: Directed Electronics, Inc. promises to the original purchaser, to replace thisproduct should it prove to be defective in workmanship or material under normaluse, for a period of two years from the date of purchase by the dealer as indicatedby the date code marking...

PrecisionPower DCX 1000.4 - Manual

Table of Contents:

Summary

Other PrecisionPower Models