How to Install and Operatethe XA4100 Amplifier®ContentsTechnical AssistanceFor technical assistance with the operation or installationof the XA4100, call 1-800-323-0221.Welcome!What you're holding in your hands is no ordinaryowner's manual. We've tried to make the instructionsin this book clear and easy to follow.For your Jensen amplifier to work right, it must beinstalled correctly. This manual will show you how toinstall your new amplifier like a pro. It's a good idea toread all of these instructions before you begin theinstallation. Most installations are straightforward andcan be handled by a do-it-yourselfer with the righttools, patience, and the ability to follow instructions.But, do-it-yourself installation isn't for everyone. If youstill don't feel confident after reading this book,consider turning the installation job over to someonebetter suited to it.Warranty ServiceIf your Jensen amplifier should ever require service,you will need to have the original dated receipt. If youever need to return the unit for any reason, alwaysinclude the receipt with the product.Features ........................................ 2Installation ................................... 2Before You BeginInstallation ..................................... 2Amplifier Location .......................... 2Disconnect Battery ........................ 2• Amplifier Installation Kit ............. 2Supplies and ToolsNeeded .......................................... 3Routing Wires ................................ 3• Bigger is Better .......................... 3Wiring ............................................. 4Power and Outputs ........................ 4Power Terminal (BATT +12V) ........ 4Ground Terminal (GND) ................. 4Remote Terminal (RMT +12V) ....... 4Fuses ............................................. 4Inputs and Controls ....................... 5Input Wiring.................................... 5Pass Output ................................... 5Power Light .................................... 5Protect Light .................................. 5Input Level Control ........................ 6Bass Boost..................................... 6Crossover ...................................... 6Speaker Wiring .............................. 7Testing .......................................... 9Reconnect Battery ......................... 9Test Power Wiring .......................... 9Test Speaker Connections ............ 9• Dealing with AlternatorNoise .......................................... 9• Installing in Trunk ..................... 10• Crimp Connections .................. 10• Securing Wires ........................ 10• Speaker andPower Wires ............................ 10Troubleshooting ....................... 11Specificationsand Warranty ............................. 12POWERPROTECTHIGH INPUTHIGH INPUT®LEVELHPFLPFMIN MAXMIN MAX50 25050 25050 25050 250CH3/4CH1/2ON OFFBASS-BOOSTHPF LPFFULLX-OVERON OFFBASS-BOOSTHPF LPFFULLX-OVER2CH 4CH3CHMODECH 1/2CH 3/45313Eamp.p65 4/10/99, 7:05 PM1