Jensen XA4150 User's Manual
Contents
1. WI Wiring Power and Outputs 12V AMT GNO Power Terminal BATT 12V Remote Terminal RMT 12V Connect the radio power antenna lead from the receiver to the amplifier remote RMT terminal This turns the amplifier on whenever the receiver is turned on If a power antenna lead is not available connect this wire to the radio or accessory fuse Connect directly to the vehicle battery terminal with 8 gauge wire minimum 12V RMT 12V RMT Butt Connector not supplied Install as close to the battery as possible To Receiver Power Antenna Lead Connect to a good chassis ground The ground connection should be to clean unpainted metal to provide a good electrical connection Use only two 25 amp blade type fuses pa Connector Ri rew Goniect t supplied Drill 1 8 hole in chassis sheet metal XA4150 JENSEN Inputs and Controls LOW INPUT PASG es oo Be cow eur pass Input Wiring Pass Output Inputs may be high level from the receiver s Use pass through PASS OUTPUT speaker or low level from special low level connectors for adding oiher amplifiers outputs Low level input is preferred for best performance Important Use only the low level or high level input do Power L ight not use both at one time The power light comes on when 12 powen VOlt power is available at both the battery 12 volt and RMT wires Low Level input Use2. JENSEN Troubleshooting Possible Cause Corrective Action No power to 12V terminal Repair wire or connections Amplifier does not operate power LED not on when vehicle and radio are on No power to remote wire with radio on Check connections to radio with test light Fuse blown Check fuse Input level control gain control adjusted too low Radio volume needs to be turned up too high for amp to wor Radio volume is too sensitive Input level control adjusted too high Adjust input level control to lower setting Sound from only one speaker Defective speaker Replace speaker Poor connections to speaker wire Adjust input level control gain control in Check connections Speaker wires shorting together Separate speaker wires and insulate RCA input cable defective Replace cable Sound distorted Input level control adjusted too high Adjust input level contro Speaker wires shorting together Separate speaker wires and insulate Power wires hooked up incorrectly Check power wire connections Speakers blown or defective Check speakers Alternator whine in outputs Radio has poor noise immunity Disconnect audio inputs to amplifier if noise disappears vehicle ignition noise then the radio is at fault Improper ground connections Make sure radio and amplifier are grounded to the same point Loud pop in speaker
3. FULL 4CH 20H i am ICH OFF on Dass X OVER MODE BASS BOOST a FUU 3CH AE NaN Important When running a subwoofer and two full range speakers together Tri mode operation high and low pass filters must be used Failure to install these filters will damage your amp and or speakers XA4150 Testing JENSEN Before you finish the installation you should do the following tests to make sure the wiring is correct and everything is operating properly Reconnect Battery When wiring is complete 9 reconnect the battery negative terminal Test Power Wiring Turn on the receiver but do not turn up the volume The amplifier power light should come on If not check the RMT and 12V wires Turn up the receiver volume slightly All speakers should operate If not check wiring connections at amplifier and speakers Test Speaker Connections These tests make sure the speakers are connected right If speakers don t play at all one or both speaker wires may be discon nected If the wrong speaker plays you hear left speaker when you expect right speaker make sure you connected the wires correctly Once everything is operating correctly reassemble vehicle trim and dashboard Professional Tip Dealing with Alternator Noise The vehicle alternator can cause a siren sound in the speakers that changes with engine speed To prevent alternator noise e Do not bundle RCA cables wi
4. JENSEN How to Install and Operate Contents the XA4150 Amplifier Features ccc 2 installation 2 Before You Begin Installation oo cceccetesseseees 2 Amplifier Location 0000 2 Disconnect Battery 008 2 Amplifier Installation Kit 2 Supplies and Tools Needed 0 20 c itiataiceetsiteaei nea 3 Routing Wires 0 cc cee eeeeeeee 3 e Bigger is Better cccccccceees 3 Wiring ee 4 Power and Outputs 00 00 000 4 Power Terminal BATT 12V 4 Ground Terminal GND 4 Remote Terminal RMT 12V 4 Welcome FUSES a iinciccesi a a eects ane 4 What you re holding in your hands is no ordinary Inputs ang Controls ceceeeeeee 5 owner s manual We ve tried to make the instructions Input Wiring sessceesssssssssseeeeeeeeee 5 in this book clear and easy to follow Pass Output cccccecseeeerees 5 For your Jensen amplifier to work right it must be Power Light A AA A EE taunts 5 installed correctly This manual will show you how to Protect Light ss seen 5 install your new amplifier like a pro It s a good idea to Input Level Control 6 read all of these instructions before you begin the Bass Boost cccccsccessseeseceerees 6 installation Most installations are straightforward and CLOSSOVER esseeererssssssssseeseeeeeete 6 can be handled by a do it yourselfer with the right Speaker Wiring EAT TE 7 to
5. a pair of shielded stereo audio cables with RCA type jacks Most trunk mount amplifier installations require 20 foot RCA cables Most under seat and pickup truck installations use i 12 foot cables Protect Light Connect RCA cables from your receiver to the RCA input jacks on the amplifier The red protect light comes on Oo when the amplifier shuts down from Protect overheating or a short circuit speaker failure High Level Input Connect left and right speaker wires coming from radio to high level input plug as shown White Left White Black Left o Black ground Gray Black Right Gray Right Radio Splice as i necessary j Hi level input plug on amp XA4150 Crossover Adjust the crossover to accommodate your chosen installation method e LPF iow pass filter only bass tones go to speakers Use with woofers or subwoofer e FULL all tones go to speakers T HPF Use with full range speakers ME HPF high pass filter blocks very low tones from the speakers Use with 6 or smaller speakers X OVER Use LPF and HPF to adjust from 40 to 240Hz O O When using your Jensen amplifier to runa subwoofer and two full Input Level Control range speakers known as Tri mode or three channel operation you will need to purchase separate high and low pass crossovers from your local retailer A pair of high pass crossovers for your full range speakers and a low pas
6. dged into a 4 ohm load IN installation Before You Begin Installation Before you begin you will need tools supplies and adapters It is best to make sure you have everything you need before you start There is a list of supplies and tools on the next page Amplifier Location Important Allow air circulation around the amplifier The XA4150 amplifiers compact design allows greater flexibility in mounting It can be mounted under a seat or in the trunk When selecting a location remember that amplifiers generate heat Select a location where air can circulate around the amplifier Do not cover the XA4150 with carpets or enclose it behind interior trim panels Do not mount the amplifier in an inverted or upside down configuration Every installation will be a bit different based upon vehicle design Check all locations and placements carefully before making any cuts or connections XA4150 e Bridgeable design to direct full power to two speakers Audio Amplifiers Amplification offers two advantages e The XA4150 amplifier can make the sound of your receiver fuller and richer even at low volume levels e Many automotive receivers provide four to 10 watts at maximum power At 75 watts RMS per channel 200 watts bridged the XA4150 can be played substantially louder permitting the use of more powerful speakers Disconnect Battery Before you begin always 9 disconnect the battery negative ter
7. hese items separately you will need the following 20 25 feet of 8 gauge wire 50 amp fuse or circuit breaker to be hooked up at the battery 20 feet of 18 gauge wire for the remote turn on power antenna lead RCA cable for signal input from radio 20 feet for trunk installation 12 feet for under seat installation Two 8 gauge ring terminals one for the battery connection and the other for the ground connec tion at the amp You may need two additional ring terminals if you are using a circuit breaker at the battery Two 8 gauge barrel connectors you may need these depending on what type of fuse holder you have Two 8 gauge spade terminals to hook up power at the amp Eight 12 gauge spade terminals for subwoofers or 16 18 gauge spade terminals for other speaker connections to amp One 18 gauge spade terminal for remote turn on power antenna lead JENSEN Routing Wires Fuse or Circuit Grommet To prevent damage to power wire 4 Power Wire 8 gauge wire or larger __ Power Antenna paa Turn on Wire 18 gauge wire gt DN P Ar O E Ground Screw Drill 1 8 hole in chassis sheet metal Use the same ground if Amplifier using multiple Snplitiers Professional Tip Bigger is better Stereo installation dealers sell extra thick power and speaker wires to ensure best sound Look for 8 gauge power wire espe cially if you have several amplifiers JENSEN XA4150
8. minal Important If wiring connections are made wrong the unit will not operate properly and it could be damaged Follow the installation instructions carefully or have the installation handled by an experienced technician Professional Tip Amplifier Installation Kit Your installation job will be much easier if you purchase an amplifier installation kit These kits often include low level RCA cables extra large power and ground wires a fuse or circuit breaker and connector for the battery XA4150 Supplies and Tools Needed Supplies Speaker wire 12 gauge for subwoofers 16 18 gauge for other speakers Sheet metal type screws for mounting amplifier Electrical tape Solderless crimp connectors e 1 2 thick plywood or particle board to mount amplifier on Tools e Flat and Phillips screwdrivers e Wire cutters e Wire strippers e Cordless or standard electric drill and drill bit set Crimping tool if using solderless crimp connectors e 12 volt test light or digital multimeter Wire brush or scraper to remove paint for a good ground connection to vehicle Soldering iron and rosin core solder if you re going to solder your connections Amplifier Installation Kit You will need an amplifier installation kit to install your amp properly because it contains all the wire and connectors that you will need to hook up your new amp right the first time If you want to purchase t
9. ols patience and the ability to follow instructions Testing 9 But do it yourself installation isn t for everyone If you Reconnect Battery ere 3 still don t feel confident after reading this book Test Power Wiring A 9 consider turning the installation job over to someone bes E eee 9 A e Deall WI ernator better suited to it Ea EOE EEE 9 Warranty Service o Installing in Trunk 10 If your Jensen amplifier should ever require service e Crimp Connections 10 you will need to have the original dated receipt If you Securing Wires aa 10 ever need to return the unit for any reason always Speaker ani include the r eceipt wi th the pr oduct Power Wires 00 0 cece eceeeeeceeee 10 Troubleshooting 11 p Specifications EN Technical Assistance and Warranty 12 For technical assistance with the operation or installation of the XA4150 call 1 800 323 0221 JENSEN Features The Jensen XA4150 power amplifier is afour channel 600 watt total system power automotive amplifier The XA4150 includes e RCA inputs e High level inputs e Continuously variable low pass or high pass crossover Bass boost feature e Remote turn on off e Electronic protection circuitry to protect the amplifier from short circuit DC offset and thermal overload e Unique super efficient heat sink design 4x 75 watts RMS per channel 4 x 150 watts peak e 2x 200 watts RMS bri
10. s filter for the subwoofer This will allow the amplifier to work properly when installing it in Tri mode Failure to install these filters may damage your amplifier and or your speakers The input level control matches the output of your radio to the input of the MIN MAX MIN max amplifier After the installa tion is complete make sure the input level control on the amp is turned down all the way counterclockwise or all the way to the left Play a tape or CD make sure bass and treble settings or EQ are flat too and turn the volume up slowly until you just start to hear distortion Now back the volume down just a bit On the amp slowly turn up the input level control clockwise or to the right until you just start to hear distortion and back it down a bit Now your radio and amplifier levels are matched Bass Boost BASS BOOST BASS BOOST increases the volume of bass by up to 6 dB at 45Hz OFF ON XA4150 JENSEN Speaker Wiring The XA4150 amplifier has inputs and outputs for four channels 4 Speakers 2 Subwoofers Bridged Mono RCA Cables 4Q He T aoas BASS p m L a TE f ge N CF ON X a tT ae a JENSEN XA4150 2 Speakers Bridged Subwoofer 4 Speakers 2 Subwoofers 4Q minimum Filter BASS KIOST X OVER available at g J J most car stereo as installation 40 CEF ON LPF HPF FUU stores minimum aes MODE QASS 8OOST fm Aa S DF i Hee fe a
11. s when Remote wire blue not properly power is turned on or off Refer to page 4 for proper installation If radio does not have a connected power antenna lead and you have connected the remote lead to an ignition source then you may oe et a pop in your speakers This is not uncommon You may have to put a switch in line with the remote lead to turn the amp on off manually Protect light comes on amplifier shuts down Amp is in thermal protection Let amp cool down before attempting to turn back on some installations may require a fan to keep the amp cool especially if you are driving subwoofers with the amp Faulty speaker connection and or crossover Check speakers and or crossovers for loose or bad connections Low battery voltage Make sure you are getting between 10 8 15 6 volts to the amplifier with a digital multimeter measured at the amplifier Speaker impedance less than 2 ohms per channel If you are using 4 ohm speakers you cannot have more than two speakers wired in parallel per channel Amp will not operate into 2 ohms bridged No output on channels Speaker wires not connected to speakers properly Input hooked up incorrectly Can t find cause of problem fe Contact Jensen Technical Assistance 1 800 323 0221 Refer to pages 5 6 and 7 for proper installation 11
12. th speaker or power wires e Do not run speaker wires parallel to power wires If you have more than one amplifier connect all ground wires to the same screw Make sure all wires are as short as possible e Make sure the receiver black wire has a good connection to the vehicle chassis ground JENSEN Professional Tip Installing in Trunk When installing the amplifier in the trunk run the power wires along the same path as the other vehicle wiring Many cars have insulated channels for wiring You will have to remove the door sill trim and the carpet Professional Tip Crimp Connections Purchase crimp connectors and crimping tool Connectors are color coded 1 Strip 1 4 inch 6mm of insulation from both wires 2 Insert into connector 3 Crimp tightly You can make permanent splices using butt connectors or select connectors that can be removed and reinstalled ai Of Strip wire T 1 4 6mm t 10 XA4150 Professional Tip Securing Wires Be proud of your installation Use wire ties to bundle wires together when possible But never bundle speaker wires and power wires together Secure loose wires to the vehicle to make sure they don t rub or rattle Professional Tip Speaker and Power Wires Do not run speaker and power wires next to each other Power wires can generate a siren sound in the speakers Run speaker and power wires on opposite sides of the car XA4150
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