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PowerPlus Amplifiers

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Installation

Before you begin the installation of your PowerPlus series amp remember, 
there are two ways to do things – right and twice! Use the proper installation 
techniques, tools and accessories to ensure that your Jensen PowerPlus 
series amp will put out all the power it was designed to. If necessary, seek a 
professional installer to have the amplifier installed correctly. Most mobile amp 
installations do not have the proper gauge wire for power and ground – do not 
let your amp be a victim of this common installation oversight!

NOTE: This device is a high-power audio amplifier intended for 
installation in vehicles with a 12-Volt negative ground electrical system. 
Attempting to connect or operate the amplifier with another type of 
electrical system may cause damage to the amplifier or the electrical 
system.

Installation Assistance

For installation assistance, call 1-800-323-4815 during normal business hours, 
or visit www.jensen.com at any time.

Supplies and Tools Needed

To install the amplifier, you will need tools, supplies and adapters. It is best to 
make sure you have everything you need before you start.

Supplies

• Black electrical tape
• Amplifier Installation Kit

Tools

• Cordless drill with assortment of bits
• Flat-head and Philips screwdrivers
• Wire cutters/strippers
• Crimping tool
• 12-volt test light or digital multimeter
• Wire brush, sandpaper or scraping tool (ground connection to vehicle should 

be a clean, unpainted metal surface)

Disconnect Battery

Disconnect the negative (-) battery cable before starting the installation. Check 
the battery ground (there should be two (2) ground wires coming from the 
battery – one going to the starter mounting bolt or engine block and another 

going to the vehicle chassis) and make sure the battery is grounded to the 
chassis with at least a #8 gauge wire. Also check the alternator connections, 
making sure they are tight and free from corrosion, rust or dirt. 

Location and Mounting

The amplifier’s compact design allows great flexibility in mounting. Common 
mounting locations include under the front passenger seat or in the trunk area.

When selecting a location, remember that amplifiers generate heat. Select a 
location on a flat surface away from heat and moisture where air can circulate 
around the amplifier.

Place the amplifier in the mounting location and mark the positions of the holes 
with a marker, pen or pencil. Carefully drill the mounting holes in the marked 
positions, then use the supplied mounting screws to securely fasten the 
amplifier to the mounting surface.

WARNING: Do not cover the amplifier with carpets or enclose it behind 
interior trim panels, and do not mount the amplifier in an inverted or 
upside down configuration. Be sure the mounting location and the 
drilling of pilot holes will not damage any wires, control cables, fuel 
lines, fuel tanks, hydraulic lines or other vehicle systems or components.

Routing Wires

Proper wiring connections are illustrated on the following pages. If wiring 
connections are made incorrectly, the unit will not operate properly and could 
become permanently damaged. Follow the installation instructions carefully, or 
have the amplifier installed by an experienced technician.

Summary of Contents for PowerPlus 900

Page 1: ...ion Manual Contents Introduction 2 Features and Specifications 3 Installation 4 Wiring 5 Speaker Wiring 7 Indicators and Controls 11 Testing 12 Remote Input Level Control 12 Troubleshooting 13 CEA Pow...

Page 2: ...So feel confident that your Jensen purchase decision was a sound one and remember If it s Too Loud You re Too Old Before You Begin We need to get the legal stuff out of the way so please keep reading...

Page 3: ...ode switch PowerPlus 840 and 1304 PowerPlus 1302 Low Pass filter 50 250Hz High Pass filter 40 500Hz High Pass Low Pass Full Range selector switch Stereo Mono Mode switch Remote Input Level Control w 5...

Page 4: ...t the negative battery cable before starting the installation Check the battery ground there should be two 2 ground wires coming from the battery one going to the starter mounting bolt or engine block...

Page 5: ...eries can be installed if desired Use the following recommended wire gauge as a guide when installing your amplifier s Power Terminal 12V B Connect the main power wire to the battery within 18 inches...

Page 6: ...are metal Use a ring terminal of the proper gauge and an outside star washer between the chassis and ring terminal when making your ground connection Although you ve scraped away the paint to expose b...

Page 7: ...For maximum power configure your speakers for a nominal 2 ohm load NOTE Do not overlook the use of the proper gauge speaker wire The PowerPlus series of amplifiers require a minimum of 12 gauge wire...

Page 8: ...LPF OFF SPEAKER OUTPUT BRIDGED BRIDGED CH1 CH2 CH3 CH4 4 ohm nominal 2 ohm minimum 4 ohm nominal 2 ohm minimum HPF LPF OFF HPF LPF OFF SPEAKER OUTPUT BRIDGED BRIDGED CH1 CH2 CH3 CH4 4 ohm nominal 4 oh...

Page 9: ...annel or 4 channel RCA Cable CAR STEREO SOURCE UNIT RCA Cable CAR STEREO SOURCE UNIT Input Wiring Mono Mode Input Wiring Stereo Mode MODE 4 3 2 2 Channel 40Hz 240Hz 40Hz 400Hz 0dB 12dB 5V 0 4V X OVER...

Page 10: ...Connecting Additional Amplifiers Pass Thru RCA connectors are provided to connect additional amplifiers without the need to purchase Y adapters MODE 4 3 2 HPF LPF OFF 5V 0 4V 0dB 12dB 40Hz 400Hz 40Hz...

Page 11: ...ly use a higher crossover setting between 125Hz and 150Hz Since musical tastes vary you should play music that you would normally listen to in your vehicle with the above settings as a starting point...

Page 12: ...both speaker wires may be disconnected Remote Input Level Control The PowerPlus 900 1150 and 1302 come equipped with a Remote Input Level Control The Remote Input Level Control allows the input level...

Page 13: ...lternator whine Ground loop s Use good quality shielded RCA cables Faulty ground at amp Re ground amp to clean bare metal chassis Faulty ground at head unit Re ground head unit to clean bare metal cha...

Page 14: ...uency Response 10Hz to 240Hz 3dB Reference 1 watt Dimensions L17 25 x H2 5 x W11 75 PowerPlus 1150 Power Output 330 watts RMS X 1 channels into 4 ohms 1 THD N Signal to Noise Ratio 100dBA below refere...

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