200/2 300/2 models 250/4
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. Stereo, mono, or simultaneous stereo/mono operation. Thermal, DC offset, reverse polarity and short circuit protection. Selectable 12dB/octave two-way crossover. Switchable 8 dB bass EQ function. Buffered stereo full-range RCA output jacks. Variable input sensitivity optimizes match with different signal sources. Gold-plated wire terminals and RCA connectors ensure maximum signal transfer.
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. 6 10.
FRONT PANEL CONNECTIONS/CONTROLS 200/2 - 300/2 1. High Level Input Connector - Accepts 1v to 10v input from the headunit’s speaker output. board active crossover. FLAT does not attenuate any frequencies and is for full-range speaker systems. HPF attenuates low frequencies and is used for mid-range speakers and tweeters. LPF attenuates high frequencies and is used for subwoofers speakers. 2. RCA Output Jacks - These pass through RCA jacks can be used to send the input signal to a second amplifier. 3.
FIGURE 2—AMPLIFIER CONNECTIONS 250/4 FRONT 1 + FRONT - 2 L R 3 OUTPUT INPUT 5 LPF HPF R FLAT HIGH L INPUT 4 GAIN MIN 6 6 BASS EQ. BASS EQ. OFF ON OFF ON MAX 4 5 LPF HPF GAIN MIN 3 7 1 INPUT L R + REAR - FLAT MAX HIGH INPUT REAR PANEL CONNECTIONS 1. Speaker Out Terminals - Connect the speakers to these terminals. (Refer to the Speaker Connection section of this guide.) 2.
FIGURE 2—AMPLIFIER CONNECTIONS 200/2 300/2 REAR 2 1 L BRIDGED FUSE 20A R 3 4 5 BATT REM GND SPEAKER OUTPUT FIGURE 2—AMPLIFIER CONNECTIONS 250/4 REAR 2 1 L FRONT BRIDGED FUSE 25A R 3 4 5 BATT REM GND SPEAKER OUTPUT REAR © 2003 Directed Electronics, Inc 9
SPEAKER WIRING DIAGRAMS 200/2 300/2 Stereo operation (top view) Mono operation (top view) Simultaneous stereo/mono operation (top view) 10 © 2003 Directed Electronics, Inc
SPEAKER WIRING DIAGRAMS 250/4 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 200/2 300/2 250/4 RMS continuous power per channel, both channels driven into 4 ohms from 20 to 20,000 Hz, with less than 0.08% Total Harmonic Distortion @ 14.4 VDC RMS continuous power per channel, both channels driven into 2 ohms from 20 to 20,000 Hz, with less than 0.1% Total Harmonic Distortion @ 14.4 VDC RMS continuous power bridged into a 4 ohm load 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.
