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                    PowerPlus Amplifiers

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Features and Specifications

Your new PowerPlus Jensen mobile stereo power amplifier is the amplifier of 
choice for the high demands of auto sound reproduction. With its deep-bass 
reproduction and plenty of reserve power, low harmonic distortion and neutral 
reproduction, the PowerPlus series of amplifiers takes Mobile Hi-Fi to new 
heights. Like all Jensen products, when it comes to accurate sound 
reproduction the PowerPlus series takes a back seat to no one. Jensen will 
bring your Hi-Fi experience to new heights with the following features:

• Low profile Aluminum extruded heat sink
• Pass-Thru RCA's
• Variable Bass EQ 0 - 12dB @ 45Hz
• 12dB / octave Low Pass and High Pass filters
• Variable Input Level 400mV - 5V
• Encapsulated power and speaker connectors
• Short circuit, DC-offset and Thermal Overload protection circuitry
• Blue illuminated VU level meter(s)
• Diagnostic LED's - Green: Power, Red: Standby / Fault

PowerPlus 420 / 840 / 1304

• Low Pass filter 40 - 240Hz
• High Pass filter 40 - 400Hz
• High Pass/Low Pass/Full Range selector switch
• Stereo/Mono Mode switch (PowerPlus 420)
• 2/3/4 Channel Mode 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 meter interface cable

PowerPlus 900 / 1150

• Mono subwoofer amp
• Low Pass filter 40 - 250Hz
• Subsonic filter 10 - 40Hz, 12dB / octave
• Remote Input Level Control w/ 5 meter interface cable

Specifications

PowerPlus 420 / 840 / 1302 / 1304

• Load Impedance: 2-4ohm

• Signal to Noise @ 1 kHz: >100dB (rated power)
• Channel Separation @ 1 kHz: >60dB
• Frequency Response: 5-60 kHz, -3dB
• Input Impedance: 20 kHz, nominal
• THD+N @ 5 watts: 0.02%, 1 kHz, 14.4VDC 

PowerPlus 900 / 1150

• Signal to Noise @ 125Hz: >100dB (rated power)
• Channel Separation not applicable
• THD+N @ 5 watts: 0.02%, 125Hz, 14.4VDC 

Power Output

RMS Power Output @ 2% THD+N, 1kHz, 14.4VDC

PowerPlus 420

• 75 x 2 Watts, 4-ohm
• 110 x 2 Watts, 2-ohm
• 210 x 1 Watts, 4-ohm Bridged

PowerPlus 840

• 75 x 4 Watts, 4-ohm
• 110 x 4 Watts, 2-ohm
• 210 x 2 Watts, 4-ohm Bridged Stereo

PowerPlus 900

• 275 x 1 Watts, 4-ohm
• 450 x 1 Watts, 2-ohm

PowerPlus 1302

• 195 x 2 Watts, 4-ohm
• 320 x 2 Watts, 2-ohm
• 650 x 1 Watts, 4-ohm Bridged

PowerPlus 1304

• 125 x 4 Watts, 4-ohm
• 160 x 4 Watts, 2-ohm
• 325 x 2 Watts, 4-ohm Bridged Stereo

PowerPlus 1150

• 350 x 1 Watts, 4-ohm
• 575 x 1 Watts, 2-ohm

Specifications subject to change without notice.

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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