Table of Contents
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Table of Contents
Summary of Contents for Impact Car Audio HC 75.2
- Page 1 Owner manual HC Series amplifiers HC 75.2 - HC 150.2 - HC 250.2 - HC 550.2...
- Page 2 INDEX INTRODUCTION WARNING Introduction Congratulation on your purchase of a new Impact Impact HC amplifiers can reproduce high sound Important High Current amplifier. pressure levels that can cause permanent dam- Warning We, at Impact, are aware of the fact that your ages to your hearing system by long exposures.
- Page 3 MAIN FEATURES SPECIFICATIONS • Stereo, Bridged and Tri-Mode System HC 75.2 HC 150.2 HC 250.2 HC 550.2 application Compatible • Full Mos-Fet Circuitry RMS Power @ 4 Ohm - 13,8 V 2 x 75 2 x 150 2 x 250 2 x 500 •...
- Page 4 CONTROLS CONTROL PANELS The Impact HC amplifiers feature an extremely flexible set of input and output controls which permit the widest range of installation opportunities. order ensure best performance, any adjustment should be made after the amplifier is installed and all input, speaker and power connections are completed.
- Page 5 CONTROL PANELS 9. POWER LED (green) Illumination this indicates that amplifier operating normally. 10. PROTECTION LED (red) Illumination of this led indicates that a short circuit exist somewhere in your system. The amplifier turns off. 11. RCA LINE OUTPUT JACKS Line out signal is automatically set by the position of the amplifier crossover select switch (5).
- Page 6 INSTALLATION Please read Installation Precaution before Amplifier Installation Set amplifiers controls as described in the installing your Impact HC amplifier, and then system you choose and according to the • Bolt the amplifier to the mounting surface. refer to the diagrams provided to connect Do not mount the amplifier upside down, as wiring diagrams that follow in this manual.
- Page 7 WIRING SYSTEM Nr. 1 2 channel stereo configuration Settings: • Adjust the Input Level control to suit the sig- nal output from the source. • For Full Range Speaker System set the selec- tor AMPLIFIER X-OVER to the FULL position •...
- Page 8 WIRING SYSTEM Nr. 2 Simultaneous Stereo and Mono Configuration to output of Head Unit to Battery FUSE High Pass Passive Crossover Right Satellite Speaker to Remote Control from Head Unit Left Satellite Speaker Low Pass Passive Crossover Mono Speaker...
- Page 9 WARNING ! This wiring requires minimum speaker impedance of 2 Ohm or more (both front system and subwoofer) Connections: • Connect a stereo signal source to amplifier inputs • Connect the speakers as shown on the above diagram. NOTE MINIMUM IMPEDANCES!!! Settings •...
- Page 10 WIRING SYSTEM Nr. 3 AMP B - front Two amplifiers in a Bi-amp System (front system + mono subwoofer) AMP A - front AMP B - rear to output of Head Unit AMP A - rear to Battery FUSE to Remote Control from Head Unit Left Satellite Right Satellite...
- Page 11 Amplifier A Input and Speaker Connections Amplifier B Input and Speaker Connections • Connect the Input signal to amplifier A as • Connect the LINE OUT of Amplifier A to shown in above diagram the LINE INPUT of Amplifier B. Be careful to •...
- Page 12 Mach Impact HC amplifiers to Impact subwoofer Great power handling and High Current Subwoofer 67 serie Subwoofer 57 serie capabilities make Impact HC amplifiers the best choice for powering a subwoofer system. Here are some 2 Ohm subwoofer system mono wiring configuration for the best performance.
- Page 13 Subwoofer 37-47 serie Subwoofer 27 serie...
- Page 14 TROUBLESHOOTING Amplifier will not power up No sound Alternator whine in speakers • Check fuse • Check radio volume and fader control • Confirm that the amplifier and any other • Check all power connections (+ 12 V, Ground • Check speaker wires for loose or disconnect signal sources are properly grounded.
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