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manual abstract
If the RCA inputs are not grounded adequately via the signal source, electrical noise from the vehicle may be picked up in the system. © 2003 Directed Electronics, Inc FRONT PANEL CONNECTIONS/CONTROLS 200/2 - 300/2 1. H HHi iig ggh hh L LLe eev vve eel ll I IIn nnp ppu uut tt C CCo oon nnn nne eec cct tto oor rr - Accepts board active crossover. FLAT does 1v to 10v input from the headunit’s not attenuate any frequencies and speaker output. is for full-range speaker systems. HPF attenuates low frequencies and 2. R RRC CCA AA O OOu uut ttp ppu uut tt J JJa aac cck kks ss - --These pass is used for mid-range speakers andthrough RCA jacks can be used to tweeters. LPF attenuates high send the input signal to a second frequencies and is used for amplifier. subwoofers speakers. 3. R RRC CCA AA I IIn nnp ppu uut tt J JJa aac cck kks ss - --Accepts line level 6. B BBa aas sss ss E EEQ QQ S SSw wwi iit ttc cch hh - Adds an additional outputs from head units or signal 8 db of boost to the speaker output processors at voltages between when on. 150mV and 8 volts. 7. S SSt tta aat ttu uus ss L LLE EED DD - Will light GREEN to 4. I IIn nnp ppu uut tt G GGa aai iin nn A AAd ddj jju uus sst ttm mme een nnt tt - --Controls indicate the amplifier is on and amplifier sensitivity and is used to operating normally, and will be off match the input level of the ampli-if the amplifier shuts down due to short circuit, DC offset, or over fier to the output level of the signal heating detected by on-board source. protection circuitry. 5. C CCr rro oos sss sso oov vve eer rr S SSe eel lle eec cct tti iio oon nn S SSw wwi iit ttc cch hh - -Controls the type of filter for the on- FIGURE 1—AMPLIFIER CONNECTIONS 200/2 - 300/2 FRONT POWER BASS EQ. OFF ON LPF HPF FLAT HIGH INPUT + - OUTPUT INPUT R L MAXMIN RL 1 2 3 GAIN 4 5 6 7 © 2003 Directed Electronics, Inc 1. Speaker Out Terminals - Connect the speakers to these terminals. (Refer to the Speaker Connection section of this guide.) 2. Power Fuse - This fuse protects the amplifier against internal electrical damage and is meant to protect the amplifier only. All other power connections should be fused at the source. 3. (+) 12 Volt Power - Connect this terminal through a FUSE or CIRCUIT BREAKER to the positive terminal of the vehicle battery or the positive terminal of an isolated audio system battery. WARNING: Always protect this power wire by installing a fuse or circuit breaker of the appropriate size within 12 inches of the battery terminal connection. 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. 5. Ground - Connect this terminal directly to the sheet metal chassis 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. The chassis connection point should be scraped free of paint and dirt. Use only quality crimped and/or soldered connectors at both ends of this wire. DO NOT connect this terminal directly to the vehicle battery ground terminal or any other factory ground points. REAR PANEL CONNECTIONS 8 © 2003 Directed Electronics, Inc FIGURE 2—AMPLIFIER CONNECTIONS 250/4 FRONT HIGH INPUT +- L R 1 FRONT HIGH INPUT + - REAR 1 OUTPUT INPUT R L 2 3 L R 7 INPUT 6 3 BASS EQ. OFF ON 5 LPF HPF FLAT MIN MAX 4 GAIN 5 LPF HPF FLAT MIN MAX 4 GAIN 6 BASS EQ. OFF ON FIGURE 2—AMPLIFIER CONNECTIONS 200/2 300/2 REAR 1 2 43 5 FIGURE 2—AMPLIFIER CONNECTIONS 250/4 REAR REMGNDBATT25AFUSELRBRIDGEDSPEAKEROUTPUTFRONTREAR1 2 43 5 © 2003 Directed Electronics, Inc SPEAKER WIRING DIAGRAMS 200/2 300/2 Stereo operation (top view) Mono operation (top view) Simultaneous stereo/mono operation (top view) © 2003 Directed Electronics, Inc SPEAKER WIRING DIAGRAMS 250/4 Stereo Operation (top view) Two Channel Stereo Four Channel Stereo Two Channel Stereo Four Channel Stereo N NNO OOT TTE EE: ::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. Simultaneous stereo/mono operation (top view) Simultaneous Two Channel Stereo with Mono Sub © 2003 Directed Electronics, Inc 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 HP...
Other models in this manual:Car Amplifiers - 250/4 (223.02 kb)
Car Amplifiers - 300/2 (223.02 kb)