model 1200/5
© 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 Dual high-speed MOSFET switching power supplies. Remote subwoofer level control and switchable 8 dB bass EQ function. Complimentary bipolar outputs (ch 1-4), and high-current MOSFET outputs (sub channel). Two, four, and six channel input allows full access to source or processor output functions. Five channel expandable architecture supports single or multiple amp system designs. Master/slave function allows synced bridged or parallel operation with model 750d.
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.
and the lower your 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 5. RCA Bridge Output Jack - This output sends an out-of-phase signal to a 750d slave amplifier when connected in the External Synced Bridged combination. (Refer to the Combined Amplifiers section of this guide.) 1. RCA Input Jacks - Accepts line level outputs from head units or signal processors between 150mV and 8 volts. 2.
REAR PANEL CONNECTIONS 1. Sub Out Terminals - Connect subwoofers to these terminals. (Refer to the Speaker Wiring Diagrams section of this guide.) 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 on lead is not available, 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. 2.
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. 6. Subsonic Frequency Switch - Sets the cutoff point for subsonic frequencies at 30 Hz. Frequencies below will be attenuated by 24db per octave. 2. Crossover Selection Switch Controls the type of filter for the onboard active crossovers. FLAT does not attenuate any frequencies and is for full-range speaker systems.
FIGURE 3—AMPLIFIER CONTROLS 1200/5 TOP 4 5 6 PHASE BASS EQ SUBSONIC 0 180 OFF FREQ ON OFF FREQ ON FREQ 3 50Hz 2 500Hz 50Hz 1+2 GAIN 500Hz 30Hz 3+4 LPF HPF FLAT GAIN 250Hz SUB LPF HPF FLAT GAIN 1 MIN MAX OFF MIN ON 3+4 INPUT MAX OFF MIN MAX ON 7 SUB INPUT 8 TOP PANEL FEATURES Control Panel Cover Remove/Install The gain and filter controls are located under a control panel cover on top of the amplifier.
SPEAKER WIRING DIAGRAMS Five channel operation (top view) Three channel operation (top view) 12 © 2003 Directed Electronics, Inc
COMBINED AMPLIFIERS The Directed 1200/5 channel five subwoofer section can be combined with a 750d in a master/slave combination for increased power and accurate level matching. They are the Parallel Synced Gain and External Synced Bridged combinations. NOTE: The Directed 1200/5 is always the master amplifier in these combinations. Parallel Synced Gain The Parallel Synced Gain combination includes a master amplifier and a slave amplifier.
PARALLEL SYNCED GAIN CONNECTIONS/SETTINGS 1. Input/Output Signal - Connect these RCA jacks as described in the Front Panel Connections/Controls section of this guide. 2. Remote Sub Level Control - Connect the Remote Sub Level control to the 1200/5 only. The 1200/5 control panel subwoofer adjustments are used first to set the overall gain for all synced amplifiers, then the Remote Sub Level control can adjust the gain of all synced amplifiers by adjusting its control knob. 3.
FIGURE 5—PARALLEL SYNC GAINED 750d/1200/5 Master (1200/5) 1 1+2 Do Not Use SUB 3+4 1-4 OUT SUB OUT SLAVE R SYNC OUT L BRIDGE OUT MASTER POWER REMOTE PROTECTION 2 Slave (750d) MIN 3 INPUT I/O SUB LEVEL SLAVE R SLAVE IN SYNC OUT L BRIDGE OUT MASTER REMOTE 4 Do Not Use MAX Do Not Use Speaker Wiring (top view) MASTER 1200/5 - SUB SUBWOOFER + - + SLAVE 750D - 5 + + + NOTE: © 2003 Directed Electronics, Inc The dual + and -- sub-out terminals of the 750d are paralleled int
1. Input/Output Signal - Connect these RCA jacks as described in the Front Panel Connection/Controls section of this guide. 2. Remote Sub Level Control - Connect the Remote Sub Level control to the 1200/5 only. The 1200/5 control panel subwoofer adjustments are used first to set the overall gain for all synced amplifiers, then the Remote Sub Level control can adjust the gain of all synced amplifiers by adjusting its control knob. 3.
FIGURE 6—EXTERNAL SYNC BRIDGED 600d/1100d5 Master (1200/5) 1 1+2 Do Not Use SUB 3+4 1-4 OUT SUB OUT SLAVE R SYNC OUT L BRIDGE OUT MASTER POWER REMOTE PROTECTION 2 Slave (750d) MIN 3 INPUT I/O SUB LEVEL SLAVE R SLAVE IN SYNC OUT L BRIDGE OUT MASTER REMOTE 4 Do Not Use MAX Do Not Use Speaker Wiring (top view) MASTER 1200/5 SUB 12 gauge 5 + SLAVE 750D + - - + 12 gauge + NOTE: © 2003 Directed Electronics, Inc The dual + and -- sub-out terminals of the 750d are paralleled
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. 18 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 1200/5 Ch 1-4 Sub Ch. 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. Sub channel driven into 4 ohms from 20-250 Hz, with less than 0.4% THD @ 14.4 VDC. 75 watts 275 watts RMS continuous power per channel, Channels 1-4 driven into 2 ohms from 20 to 20,000 Hz, with less than 0.1% Total Harmonic Distortion @ 14.4 VDC.
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.
