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Directed Electronics Model 350 Power Amplifier manual

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Table of contents for the manual

  • Page 1

    OWNER’S MANUAL Model 350[...]

  • Page 2

    © 2000 Directed Electronics, Inc. CONGRA TULA TIONS Thank you for choosing a Directed Audio power amplifier . Directed has been the leader in high-quality and innovative security products in the U.S. since 1990. Now we introduce to the car audio industry the same winning formula - products that meet the strin- gent standards of today’ s mobile e[...]

  • Page 3

    1 © 2000 Directed Electronics, Inc. T ABLE OF CONTENTS High-powered car audio systems may produce sound pressure levels that exceed the threshold at which hearing loss may result. They may also impair a driver’ s ability to hear traffic sounds or emergency vehi- cles. Use common sense and practice safe listening habits when listening to or adjus[...]

  • Page 4

    © 2000 Directed Electronics, Inc. 2 INST ALLA TION GUIDELINES 1. Please read the owner’ s manual carefully before you install the amplifier . 2. Disconnect the battery ground terminal prior to making any elec- trical connections. 3. Check for any hazards or obstruc- tions such as gas tanks, fuel or brake lines, and wiring harnesses before mounti[...]

  • Page 5

    © 2000 Directed Electronics, Inc. INST ALLA TION GUIDELINES (continued) 3 is generated. For low impedance speaker applications or restricted ventilation installations, an external cooling fan may be advisable. 9. Y our connections to the amplifier’ s speaker and power terminals should be made with crimped spade lugs, and the battery and ground c[...]

  • Page 6

    4 © 2000 Directed Electronics, Inc. 1. GROUND TERMINA L - connect this terminal to the car chassis with a short heavy gauge wire, DO NOT CONNECT TO THE NEGA TIVE TERMINAL OF THE CAR BA TTERY or to factory chassis ground points already occupied by factory wires! If you are grounding multiple ampli- fiers, you may use a high-current distribution blo[...]

  • Page 7

    5 © 2000 Directed Electronics, Inc. 1. RCA INPUT JACKS - accepts line- level outputs from head units or signal sources at voltages from 200mV to 8 volts. 2. GAIN ADJUSTMENT - controls the gain (input sensitivity) of the amplifier . Each control sets the gain for that half of the amplifier . 3. CROSSOVER SELECTION SWITCH - controls the type of filt[...]

  • Page 8

    6 © 2000 Directed Electronics, Inc. SPEAKER WIRING DIAGRAMS For bridged three channel operation as shown in this diagram, connect right channel RCA cables to the “FRONT” inputs of the amplifier , and left channel RCA cables to the “REAR” inputs of the amplifier . Five channel operation Three channel operation[...]

  • Page 9

    7 © 2000 Directed Electronics, Inc. CROSSOVER SETTINGS AND GAIN ADJUSTMENT Y our 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 normal complete system applications, the crossover selection switches should be set to "HPF&[...]

  • Page 10

    8 © 2000 Directed Electronics, Inc. SPECIFICA TIONS RMS continuous power per channel, Channels 1-4 driven into 4 ohms from 20 to 20,000 Hz, with less than 0.08% total Harmonic Distortion @ 14.4 VDC. Channel 5 driven into 4 ohms from 20-250 Hz, with less than 0.08% THD @ 14.4 VDC. RMS continuous power per channel ,Channels 1-4 driven into 2 ohms fr[...]

  • Page 11

    9 © 2000 Directed Electronics, Inc. Directed Electronics, Inc. (DEI ® ) promises to the original purchaser , to replace this product should it prove to be defective in workmanship or material under normal use, for a period of two years from the date of purchase by the dealer as indicated by the date code marking of the product PROVIDED the produc[...]

  • Page 12

    • SINGLE AND DUAL VOICE COIL SUBWOOFERS • COAXIAL SPEAKERS • COMPONENT SPEAKER SYSTEMS © 2000 Directed Electronics, Inc. • Vista, CA 92083 • All Rights Reserved G45054 1/00 Always use a DEI is a proud member of • CLASS D MONO AMPLIFIERS • 2 CHANNEL AMPLIFIERS • 4 AND 5 CHANNEL AMPLIFIERS • SIGNAL PROCESSORS • SINGLE AND DUAL VO[...]