Assessments - 3, GPA: 3.7
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10. Due to the high-frequency MOSFET switching power supply, filtering the power cable is not generally required (remember that the amp can’t deliver full output if the power supply is restricted). Proper grounding of the signal source is mandatory for the amplifier to reach its performance peak. If the RCA inputs are not grounded adequately via the signal source, electrical noise from the vehicle may be picked up in the system. © 2002 Directed Electronics, Inc FRONT PANEL CONNECTIONS/STATUS LED 1. R RRC CCA AA I IIn nnp ppu uut tt J JJa aac cck kks ss -Accepts line level outputs from head units or signal processors at voltages between 150mV and 8 volts. 2. R RRC CCA AA O OOu uut ttp ppu uut tt J JJa aac cck kks ss -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. S SSt tta aat ttu uus ss L LLE EED DD - Lights GREEN to indicate the amplifier is on and operating normally and will be off if the amplifier shuts down due to short circuit, DC offset, or overheating detected by the on-board protection circuitry. FIGURE 1—AMPLIFIER CONNECTIONS 4200/4500 FRONT 12 3 REAR PANEL CONNECTIONS 1. S SSp ppe eea aak kke eer rr O OOu uut tt T TTe eer rrm mmi iin nna aal lls ss - Connect the speakers to these terminals. (Refer to the Speaker Connection section of this guide.) 2. P PPo oow wwe eer rr F FFu uus sse ees ss -These fuse(s) protect the amplifier against internal electrical damage and are meant to protect the amplifier only. All other power connections should be fused at the source. 3. ( ((+ ++) )) 1 112 22 V VVo ool llt tt P PPo oow wwe eer rr - 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. W WWA AAR RRN NNI IIN NNG GG: ::Always protect this power wire by installing a fuse or circuit breaker of the appropriate size within 12 inches of the battery terminal connection. © 2002 Directed Electronics, Inc 4. R RRe eem mmo oot tte ee T TTu uur rrn nn O OOn nn - 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. G GGr rro oou uun nnd dd -Connect this terminal directly to the sheet metal chassis FIGURE 2—AMPLIFIER CONNECTIONS 4200 REAR 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. 1 2 345 FIGURE 3—AMPLIFIER CONNECTIONS 4500 REAR 1 2 43 5 © 2002 Directed Electronics, Inc TOP PANEL CONTROLS 1. I IIn nnp ppu uut tt G GGa aai iin nn A AAd ddj jju uus sst ttm mme een nnt tt - Controls amplifier sensitivity and is used to match the input level of the amplifier to the output level of the signal 3. source. 2. 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 on4. board active crossovers. 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 FIGURE 4—AMPLIFIER CONTROLS 4200/4500 TOP tweeters. LPF attenuates high frequencies and is typically used for subwoofers. C CCr rro oos sss sso oov vve eer rr F FFr rre eeq qqu uue een nnc ccy yy A AAd ddj jju uus sst ttm mme een nnt tt Adjusts the crossover point for the on board active crossovers. B BBa aas sss ss E EEQ QQ S SSw wwi iit ttc cch hh - Adds an additional 8 db of boost to the speaker output when on. 3 2 . . . . 1 . . . . 4 . . . . . . . . . TOP PANEL FEATURES Control Panel Cover The gain and filter controls are located under a control panel cover on top of the amplifier. The control panel cover must be removed to gain access to the gain and filter controls. Remove/Install Four Allen-head screws hold the control panel cover to the amplifier top panel, one at each corner. They can be removed with the wrench supplied in the hardware pack. © 2002 Directed Electronics, Inc SPEAKER WIRING DIAGRAMS 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. Simul...