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OWNER’S MANUAL
Models 150/250/400
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CONGRATULATIONS Thank you for choosing a Directed Audio audio design, Directed Audio amplifiers power amplifier. Directed has been the will satisfy every music lover’s needs for leader in high-quality and innovative years to come. Your Directed Audio security products in the U.S. since power amplifier comes with a two year 1990. Now we introduce to the car limited warranty if it is installed by an audio industry the same winning authorized DEI dealer. Amplifiers not formula - products that me
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TABLE OF CONTENTS Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 2 Amplifier Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 4 Amplifier Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 5 Speaker Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . .Page 6 Crossover Setting and Gain Adjustment . . . . . . . . . . . . . . . .Page 7 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . .
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INSTALLATION GUIDELINES 1. Please read the owner’s manual more amps than the on board carefully before you install the fuse(s) of the amplifier(s). The amplifier. gauge of power wire used should 2. Disconnect the battery ground take into account the total current terminal prior to making any elec- draw of the system, and the length trical connections. of wire used. IASCA and other 3. Check for any hazards or obstruc- autosound competition organiza- tions such as gas tanks, fuel or tions have c
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INSTALLATION GUIDELINES (continued) is generated. For low impedance 10. Due to the high-frequency MOSFET speaker applications or restricted switching power supply used in all ventilation installations, an external Directed Audio amplifiers, filtering cooling fan may be advisable. the power cable is not generally 9. Your connections to the amplifier’s required (remember that the amp speaker and power terminals can’t deliver full output if the power should be made with crimped spade supply is res
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AMPLIFIER CONNECTIONS Refer to Figure 1 for details. 1. GROUND TERMINAL - connect this not connect this terminal to a constant source of +12V. terminal to the car chassis with a short heavy gauge wire, DO NOT 3. +12V POWER TERMINAL - connect CONNECT TO THE NEGATIVE this terminal to the positive terminal TERMINAL OF THE CAR BATTERY or of the car or separate audio system to factory chassis ground points battery. Refer to the installation already occupied by factory wires! If guidelines and specs
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AMPLIFIER CONTROLS Refer to Figure 2 for details. 1. RCA INPUT JACKS - accepts line- 4. LED INDICATOR - the green Power level outputs from head units or LED lights to indicate normal opera- signal sources at voltages from tion. The green LED will shut off to 200mV to 8 volts. High-grade indicate amp shutdown due to shielded or twisted pair RCA cables short circuit, DC offset, or over- are recommended for this input. current conditions detected by on- board protection circuits. Thermal 2. GAIN
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SPEAKER WIRING DIAGRAMS Stereo operation Mono operation Simultaneous stereo/mono operation 6 © 1999 Directed Electronics, Inc
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CROSSOVER SETTINGS AND GAIN ADJUSTMENT Your Directed Audio power amplifier needs to be adjusted carefully to achieve maximum performance. These are some guidelines to follow when fine-tuning the amplifier. • For full-range and simultaneous stereo/mono bass applications, the crossover selection switch should be set to "FLAT". If the amplifier is driving your subwoofers, set the switch to "LPF", and for mid-bass/midrange output, set to "HPF". • The crossover frequency control needs to be adjust
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SPECIFICATIONS 150/250/400 model 150 250 400 RMS continuous power per channel, both chan- 50 75 125 nels driven into 4 ohms from 20 to 20,000 Hz, watts watts watts with less than 0.08% Total Harmonic Distortion @ 14.4 VDC RMS continuous power per channel, both chan- 75 125 200 nels driven into 2 ohms from 20 to 20,000 Hz, watts watts watts with less than 0.1% Total Harmonic Distortion @ 14.4 VDC 150 250 400 RMS continuous power bridged into a 4 ohm load fro
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LIMITED TWO YEAR CONSUMER WARRANTY ® Directed Electronics, Inc. (DEI ) promises to ULAR PURPOSE, AND WARRANTY OF the original purchaser, to replace this NON-INFRINGEMENT OF INTELLECTUAL product should it prove to be defective in PROPERTY ARE EXPRESSLY EXCLUDED TO workmanship or material under normal use, THE MAXIMUM EXTENT ALLOWED BY for a period of two years from the date of LAW, AND DEI NEITHER ASSUMES NOR purchase by the dealer as indicated by the AUTHORIZES ANY PERSON TO ASSUME date code mar
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OTHER PRODUCTS AVAILABLE FROM: • CLASS D MONO AMPLIFIERS ® • 2 CHANNEL AMPLIFIERS • 4 AND 5 CHANNEL AMPLIFIERS • SIGNAL PROCESSORS • TUBE SUBWOOFERS • POWERED SUBWOOFERS • SINGLE AND DUAL VOICE COIL SUBWOOFERS • COAXIAL SPEAKERS • SINGLE AND DUAL VOICE COIL SUBWOOFERS • COAXIAL SPEAKERS • COMPONENT SPEAKER SYSTEMS • SINGLE AND DUAL VOICE COIL DIE-CAST SUBWOOFERS • COMPONENT NEODYMIUM SPEAKER SYSTEMS • SINGLE AND DUAL VOICE COIL DIE-CAST SUBWOOFERS • HIGH PERFORMANCE POWER CABLES • PREMIUM S
