model 600/4
© 2003 Directed Electronics, Inc
CONGRATULATIONS Congratulations for choosing a Directed Audio power amplifier from Directed Electronics, the industry leader in high quality automotive security and audio equipment since 1990. Directed Audio power amplifiers continue to set new standards of performance, reliability, and affordability in the mobile electronics industry.
LIMITED TWO-YEAR CONSUMER WARRANTY Directed Electronics, Inc. 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 product was installed by an authorized Directed dealer.
FEATURES High-speed MOSFET switching power supply and complimentary bipolar outputs Four-channel architecture supports up to six channel use Thermal, DC offset, reverse polarity and short circuit protection Top-mounted controls easily accessed for system tuning Dual continuously variable 12 dB/ octave two-way active crossovers Dual switchable 8 dB bass EQ function Summed stereo full-range RCA output jacks Gold-plated wire terminals and RCA connectors ensure maximum signal tran
INSTALLATION GUIDELINES 1. Please read this owner’s manual carefully before installing this amplifier. 2. Disconnect the battery ground terminal prior to making any electrical connections. 3. Check for any hazards or obstructions such as gas tanks, fuel or brake lines, and wiring harnesses before mounting the amplifier. 4. Pick a mounting location that will provide adequate access and ventilation and protect the amplifier from heat, moisture, and dirt. 5.
speaker load, the more heat is generated. For low impedance speaker applications or restricted ventilation installations, an external cooling fan may be advisable. 9. Battery and ground connections to the vehicle should be made with crimped ring terminals of the appropriate size (surface area is what counts); soldering the terminals after crimping is also recommended. © 2003 Directed Electronics, Inc 10.
FRONT PANEL CONNECTIONS/STATUS LED 1. RCA Input Jacks - Accepts line level outputs from head units or signal processors at voltages between 150mV and 8 volts. 2. RCA Output Jacks - These pass through RCA jacks can be used to send a signal to a second amplifier. They are the summed stereo output of the one through four channel inputs of the amplifier. 3.
4. Remote Turn On - This terminal turns on the amplifier when (+) 12 volt is applied to it. Connect it to the remote turn on lead of the head unit or signal source. If a (+) 12 volt remote turn lead is not available, a Remote Power Adapter (P/N #55000) can be used to supply a remote turn on signal. DO NOT connect this terminal to constant (+) 12 volt. of the vehicle using the shortest wire necessary to make this connection. Always use wire of the same gauge or larger than the (+) 12 volt power wire.
TOP PANEL CONTROLS 1. Input Gain Adjustment - Controls amplifier sensitivity and is used to match the input level of the amplifier to the output level of the signal source. tweeters. LPF attenuates high frequencies and is typically used for subwoofers. 3. Crossover Frequency Adjustment Adjusts the crossover point for the on board active crossovers. 2. Crossover Selection Switch Controls the type of filter for the onboard active crossovers.
SPEAKER WIRING DIAGRAMS Stereo Operation (top view) Two Channel Stereo NOTE: Four Channel Stereo For bridged two 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. For summed subwoofer applications, connect RCA cables per the input jack marking.
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. 12 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.
SPECIFICATIONS Directed model 600/4 RMS continuous power per channel, All channels driven into 4 ohms from 20 to 20,000 Hz, with less than 0.08% Total Harmonic Distortion @ 14.4 VDCC 75 watts RMS continuous power per channel, All channels driven into 2 ohms from 20 to 20,000 Hz, with less than 0.1% Total Harmonic Distortion @ 14.4 VDC 20/125 watts RMS continuous power, 2-channel operation, bridged into 4 ohms from 20 to 20,000 Hz, with less than 0.1% Total Harmonic Distortion @ 14.
The company behind this system is Directed Electronics, Inc. Since its inception, Directed has had one purpose, to provide customers with the finest vehicle security, car stereo products, rear seat entertainment, and accessories available. The recipient of more than 20 patents in the field of advanced electronic Directed Electronics, Inc. Vista, California 92081 www.directed.com technology, Directed is ISO 9001 registered.
