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2 © 2003 Directed Electronics, Inc

TABLE OF CONTENTS

CONGRATULATIONS

Congratulations for choosing an XtremeSeries power amplifier, by DirectedAudio. This high performance producthas been designed and engineered byDirected Electronics, the industry leaderin high quality automotive security andaudio equipment since 1990. With theXtreme Series power amplifiers,Directed Audio continues to set newstandards of performance, reliability,and affordability in the mobile elec-tronics industry.

Featuring high-efficiency MOSFET powersupplies and flexible built-in crossovershoused in a rugged, extruded aluminum

extrusion with black chrome trimpanels, Xtreme power amplifiers willexcite and delight car audio enthusiastswith years of high performance audioreproduction.

Xtreme Series amplifiers come with atwo-year limited warranty if sold andinstalled by an authorized Directeddealer. If not installed by an authorizeddealer, Xtreme Series amplifiers arecovered by a one-year, parts-and-laborlimited warranty. Be sure to retain youroriginal purchase receipt, and refer tothe warranty section of this guide for fulldetails about your coverage.

Congratulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Limited Two-Year Consumer Warranty . . . . . . . . . . . . . . . . . . . . . . . . .3

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Front Panel Connections/Controls . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Input Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Crossover Settings and Gain Adjustment . . . . . . . . . . . . . . . . . . . . . . .9

Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Speaker connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Bridge Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14



LIMITED TWO-YEAR CONSUMER WARRANTY

3© 2003 Directed Electronics, Inc

Directed Electronics, Inc. promises to theoriginal purchaser, to replace this productshould it prove to be defective in workman-ship or material under normal use, for aperiod of two years from the date ofpurchase by the dealer as indicated by thedate code marking of the productPROVIDED the product was installed by anauthorized Directed dealer. During this two-year period, there will be no charge for thisreplacement PROVIDED the unit is returnedto Directed, shipping pre-paid. If the unit isinstalled by anyone other than an autho-rized Directed dealer, the warranty periodwill be 1 year from the date of purchase bythe dealer as indicated by the date codemarking of the product. During this 1-yearperiod there will be no charge for thisreplacement PROVIDED the unit is returnedto Directed, shipping pre-paid. This warrantyis non-transferable and does not apply toany unit that has been modified or used in amanner contrary to its intended purpose,and does not cover damage to the unitcaused by installation or removal of the unit.This warranty is void if the product has beendamaged by accident or unreasonable use,neglect, improper service or other causesnot arising out of defects in materials orconstruction. ALL WARRANTIES INCLUDINGBUT NOT LIMITED TO EXPRESSWARRANTY, IMPLIED WARRANTY,WARRANTY OF MERCHANTABILITY,FITNESS FOR PARTICULAR PURPOSE, AND

WARRANTY OF NON-INFRINGEMENT OFINTELLECTUAL PROPERTY ARE EXPRESSLYEXCLUDED TO THE MAXIMUM EXTENTALLOWED BY LAW, AND DIRECTEDNEITHER ASSUMES NOR AUTHORIZESANY PERSON TO ASSUME FOR IT ANYLIABILITY IN CONNECTION WITH THESALE OF THE PRODUCT. DIRECTED HASABSOLUTELY NO LIABILITY FOR ANY ANDALL ACTS OF THIRD PARTIES INCLUDINGITS AUTHORIZED DEALERS ORINSTALLERS. Unit must be returned toDirected, postage pre-paid, with: consumer’sname, telephone number, and address,authorized dealer’s name and address, andproduct description. IN ORDER FOR THISWARRANTY TO BE VALID, YOUR UNITMUST BE SHIPPED WITH PROOF OFINSTALLATION BY AN AUTHORIZEDDIRECTED DEALER. ALL UNITS RECEIVEDBY DIRECTED FOR WARRANTY REPAIRWITHOUT PROOF OF DIRECTED DEALERINSTALLATION WILL BE COVERED BY THELIMITED 1-YEAR PARTS AND LABORWARRANTY. Note: This warranty does notcover labor costs for the removal and rein-stallation of the unit. BY PURCHASING THISPRODUCT, THE CONSUMER AGREES ANDCONSENTS THAT ALL DISPUTES BETWEENTHE CONSUMER AND Directed SHALL BERESOLVED IN ACCORDANCE WITH CALI-FORNIA LAWS IN SAN DIEGO COUNTY,CALIFORNIA.




INSTALLATION GUIDELINES

High-powered car audiosystems may produce sound

pressure levels that exceed thethreshold at which hearing loss mayresult.

They may also impair a driver’s ability tohear traffic sounds or emergency vehi-cles. Use common sense and practicesafe listening habits when listening to oradjusting your audio system.

WARNING

FEATURES

High-speed MOSFET power supplies

Complimentary bipolar transistoroutputs

Mono/stereo/mixed mono opera-tion (1500X mono only)

2 ohm stereo stable/4 ohm monostable (1500X 2 ohm monostable)

Built-in 2-way variable crossovers(1500X LP only)

+6 or +12 dB switchable bassboost (4600X switchable +12dB)

Adjustable input gain

Power/status LED's

Thermal, short-circuit, over-current,and reverse polarity protection

Gold-plated RCA inputs

Heavy duty screw terminals acceptup to 8 AWG cables

1. Please read this owner’s manualcarefully before installing this ampli-fier.

2. Disconnect the battery groundterminal prior to making any elec-trical connections.

3. Check for any hazards or obstruc-tions such as gas tanks, fuel orbrake lines, and wiring harnessesbefore mounting the amplifier.

4. Pick a mounting location that willprovide adequate access and venti-lation and protect the amplifierfrom heat, moisture, and dirt.

5. Avoid sharp metal areas whenrouting cables to the amplifier, andrun RCA cables away from thepower cables and other potentiallynoisy car harnesses.




6. The amplifier should be groundedwith a short, heavy gauge wireconnected directly to the car at abare metal surface, preferablyscraped body sheet metal. Do notuse factory ground locations, seatbolts, or brackets that arespotwelded.

7. Always fuse your power connectionwithin 8 to 10 inches of the batteryterminal. Use a fuse or circuitbreaker rated slightly more than theon-board fuse(s) of theamplifier(s). The gauge of powerwire used should take into accountthe total current draw of thesystem, and the length of wireused. IASCA and other auto soundcompetition organizations havecharts available for this; you canalso find a chart in the MECP studyguide. Minimum wire gauge recom-mendations for the individual ampli-fiers are listed on the specificationpage. Always use the same gaugewire for the amplifier ground thatyou use for the power wire. Be sureto examine the battery groundcable of the vehicle, and if neces-sary, upgrade it by adding an addi-tional ground wire that is the samegauge as the amplifier power wire.Remember, the amplifier can onlydeliver its rated output when it is

not current limited by the powerand ground supply wires.

8. This amplifier is designed to drive aspeaker load that measures from 2to 8 ohms. Keep in mind that heatis the long-term enemy of automo-tive electronics and the lower yourspeaker load, the more heat isgenerated. For low impedancespeaker applications or restrictedventilation installations, an externalcooling fan may be advisable.

9. Battery and ground connections tothe vehicle should be made withcrimped ring terminals of the appro-priate size (surface area is whatcounts); soldering the terminalsafter crimping is also recom-mended.

10. Due to the high-frequency MOSFETswitching power supply, filtering thepower cable is not generallyrequired (remember that the ampcan’t deliver full output if the powersupply is restricted). Propergrounding of the signal source ismandatory for the amplifier toreach its performance peak. If theRCA inputs are not groundedadequately via the signal source,electrical noise from the vehiclemay be picked up in the system.




1. RRCCAA IInnppuutt JJaacckkss -- Accepts line leveloutputs from head units or signalprocessors at voltages between150mV and 4 volts.

2. IInnppuutt GGaaiinn AAddjjuussttmmeenntt -- Controlsamplifier sensitivity and is used tomatch the input level of the ampli-fier to the output level of the signalsource.

3. CCrroossssoovveerr FFrreeqquueennccyy AAddjjuussttmmeenntt --Adjusts the crossover point for theon-board active crossovers.

4. CCrroossssoovveerr SSeelleeccttiioonn SSwwiittcchh --Controls the type of filter for the on-board active crossover. FLAT doesnot attenuate any frequencies andis for full-range speaker systems.HPF attenuates low frequencies andis used for mid-range speakers andtweeters. LPF attenuates highfrequencies and is used forsubwoofers speakers.

5. BBaassss EEQQ SSwwiittcchh - Adds an additional6 or 12 db of bass boost to thespeaker output (4600X 12 dbonly).

6. SSttaattuuss LLEEDD - Will light BLUE to indi-cate the amplifier is on and oper-ating normally, and will be RED ifthe amplifier shuts down due toshort circuit, or overheatingdetected by on-board protectioncircuitry.

NNOOTTEE:: The 2300X and 4600X amplifiers require thatthe system remote power be cycled off and onagain to restart the amplifier after a protectionshutdown.

The 1500X amplifier will cycle off and automati-cally turn back on when the fault condition clears.

The amplifier should be inspected for proper venti-lation clearance on all sides of the amplifier (2-inches). The speaker wiring should be inspectedfor any shorts.

NNOOTTEE:: The 1500X and 2300X amplifiers have onecombined Power/Protection (BLUE/RED) LED,the 4600X amplifier has separate Power (BLUE)and Protection (RED) LEDs.

FRONT PANEL CONNECTIONS/CONTROLS

NNOOTTEE:: The step numbers listed below are referenced on the Input Wiring Diagram.




1

45

2 3 36

LPF HPF

INPUT WIRING DIAGRAMS

1

45

2 63

X-OVER




2 3 23

45 45

FOUR CHANNEL 4600X

1 1

6 6

POWER PROTECT

LPF HPF




CROSSOVER SETTINGS AND GAIN ADJUSTMENT

Your Xtreme Series power amplifier by Directed Audio needs to be adjusted carefully toachieve maximum performance. These are some guidelines to follow when fine-tuningthe amplifier.

For full-range and simultaneous stereo/mono bass applications, the crossover selec-tion switch should be set to FLAT. If the amplifier is driving your subwoofers, set theswitch to LPF, and for mid-bass/midrange output, set to HPF.

The crossover frequency control needs to be adjusted to suit your particular system.For subwoofer applications, try to keep the setting low enough to prevent theimage smearing (you should not be able to hear male voices from the subwoofer)but not so low as to create a gap between the subwoofer and the mid-bass/midrange speakers. For mid-bass/midrange settings, try to keep the settinglow enough to keep your sound stage in front of you, without overdriving thespeaker. It will be to your advantage to spend some extra time with this adjust-ment, listening to familiar music or system set-up discs to achieve the kind ofmusical reproduction that you prefer.

The gain adjustment allows you to set proper signal match for clean, quiet ampli-fier operation. For full-range and simultaneous stereo/mono bass applications,start by playing some music you are familiar with. With the gain adjustment onthe amplifier in the middle of its rotation, bring up the volume on your head unitto the 3/4 volume setting or until you start to hear distortion or clipping. If youhear distortion before you reach the 3/4 volume setting of your head unit, reducethe gain setting on the amplifier and start to raise the head unit volume again.When you can listen to the music at or slightly above 3/4 on your head unitwithout audible distortion, slowly raise the gain of the amplifier until distortion isheard, then back off the gain until the distortion is not audible. This setting willallow you to reach full output with all but the quietest of source material, whileavoiding excessive noise in the system.

The same procedure should be used for adjusting the amplifier when the on-boardcrossover is set to LPF or HPF, but you will also have to take into consideration theeffect that gain adjustment has on system frequency response and imaging.Again, plan on spending some time with music that you know, getting the gainand crossover settings the way you like. Test discs and analyzers may help with thisprocess, but in the end it's your ears that count - listen to the music!




1. SSppeeaakkeerr OOuutt TTeerrmmiinnaallss - Connectthe speakers to these terminals.(Refer to the Speaker Connectionsection of this guide.)

2. PPoowweerr FFuussee -- This fuse protects theamplifier against internal electricaldamage and is meant to protect theamplifier only. All other powerconnections should be fused at thesource.

3. ((++)) 1122 VVoolltt PPoowweerr - Connect thisterminal through a FUSE or CIRCUITBREAKER to the positive terminal ofthe vehicle battery or the positiveterminal of an isolated audiosystem battery.

WWAARRNNIINNGG:: Always protect this power wire by installing a fuseor circuit breaker of the appropriate size within12 inches of the battery terminal connection.

4. RReemmoottee TTuurrnn OOnn - This terminalturns on the amplifier when (+) 12volt is applied to it. Connect it to

the remote turn on lead of the headunit or signal source. If a (+) 12volt remote turn lead is not avail-able, a Remote Power Adapter(P/N #55000) can be used tosupply a remote turn on signal. DONOT connect this terminal toconstant (+) 12 volt.

5. GGrroouunndd -- Connect this terminaldirectly to the sheet metal chassisof the vehicle using the shortestwire necessary to make thisconnection. Always use wire of thesame gauge or larger than the (+)12 volt power wire. The chassisconnection point should be scrapedfree of paint and dirt. Use onlyquality crimped and/or solderedconnectors at both ends of thiswire. DO NOT connect this terminaldirectly to the vehicle batteryground terminal or any otherfactory ground points.

REAR PANEL CONNECTIONS




SPEAKER CONNECTIONS

MONO CHANNEL 1500X

FUSES

SPEAKER4 Ohm

SPEAKER4 Ohm

TWO SPEAKER CONNECTION

FUSES

SPEAKER2-4 Ohm

ONE SPEAKER CONNECTION

25A fuses

25A fuses




TWO CHANNEL 2300X

FOUR CHANNEL 4600X

FUSESBRIBRI

Note that the two speakers & fourspeakers have been connected to thefour terminal following the (+) and (-)graphic. Your speaker terminals may bemarked (+) and (-) or there may be reddot by one terminal which means thesame as (+).

Connecting the speakers in this mannerassures that the two speaker cones willmove in and out together according tothe original recording. If one of the twospeakers is reversed, stereo imagingand bass response will be degraded.

25A fuses

25A fuse




BRIDGE MODE

TWO CHANNEL 2300X

SPEAKER4 Ohm

FOUR CHANNEL 4600X

FUSESBRIBRI

SPEAKER4 Ohm

SPEAKER4 Ohm

Note that the two speakers & fourspeakers have been connected to thefour terminal following the (+) and (-)graphic. Your speaker terminal may bemarked (+) and (-) or there may be reddot by one terminal which means thesame as (+).

Connecting the speakers in this mannerassures that the two speaker cones willmove in and out together according tothe original recording. If one of the twospeakers is reversed, stereo imagingand bass response will be degraded.

25A fuse

25A fuses




SPECIFICATIONS Xtreme models 1500X 2300X 4600X

Type Mono block 2-channel 4-channel

Maximum Power 500 watts 300 watts 600 watts

Continuous Power @ 4 ohms 150 x 1 50 x 2 50 x 4(watts RMS)

Continuous Power @ 2 ohms 250 x 1 75 x 2 75 x 4(watts RMS)

Damping Factor >50 >50 >50

Frequency Response 20Hz-20kHz 20Hz-20kHz 20Hz-20kHz+/- 1dB +/- 1dB +/- 1dB

S/N Ratio -90dBA -90dBA -90dBA(Full power into 4 ohms)

Crossover LP 50-250Hz Variable Variable12dB Slope HP/LP HP/LP

50-250Hz 50-250Hz12dB Slope 12dB Slope

Bass EQ Switch Switch Switch+6/+12dB +6/+12dB +12dB@ 50Hz @ 50Hz @ 50Hz

Input Sensitivity 200mV-4V 100mV-4V 100mV-4V

Protection Thermal, Overcurrent, Short Circuit, Reverse Polarity

Fuse Size 25A x 2 25A 25A x 2

Minimum Power Wire Gauge 10 12 10



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