Expert Service 1-877-289-7664 [Hours]

2nd Annual Warehouse Sale- more products added!

Jensen Power 900

Monoblock Amplifier (POWER900)

Discontinued
|

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

power9001 thumbnail

Jensen Power 900.1

OUR PRICE: $84.99

View item

Get FAST answers from customers ASK a Question See questions answers

  • Power Series Monoblock Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 230 watts x 1 chan.
    • 2 ohms: 340 watts x 1 chan.
  • Max power output: 900 watts x 1 chan.
  • MOSFET power supply
  • Design Minimizes Distortion and Reduces Idle Current
  • High Current Bi-Polar Output Transistors
  • LED power, standby, and fault indicators
  • Pass-Thru RCAs
  • Single channel operation
  • Preamp RCA outputs
  • Short Circuit, DC-offset and Thermal Overload Protection Circuitry
  • Variable low-pass filter (40-240 Hz)
  • CEA-2006 compliant amplifier
  • Frequency response: 10-240 Hz
  • 4-gauge power and ground leads recommended. Contact us for information regarding a discount on a select amplifier kit when purchased together.
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Product History:

Jensen Power 900.1 thumbnail
(newest, current model)
Jensen POWER-900 thumbnail
(previous model, replaced by Jensen Power 900.1)

Power Specifications - Subwoofer Channel

RMS Power @ 4 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
230 watts x 1 channels
RMS Power @ 2 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
340 watts x 1 channels
RMS Power @ 1 ohm
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 1 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
Not Stable
Peak Power Output
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage. Often times this maximum is achieved during a brief musical burst, such as a drum accent or low bass hit. Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison. This is the peak power output for the amplifier's 5th channel.
900 watts x 1 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

D
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
1 - Mono
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.

900 watts
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

340 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
4 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Not Bridgeable
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
1%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
No
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
1 pair
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-pass (LP)
High-pass (HP)
Full (AP)
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

40 - 240 Hz
Subsonic Filter
Allows you to block (filter) ultra-low frequencies that your subs cannot reproduce.
10 - 40 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
100 dB
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
30A x 2 
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

Yes
Strappable
Some amplifiers can be "strapped" together in order to increase the output of a single audio channel. These amplifiers feature RCA preamp outputs, allowing you to pass the signal directly from one amp to the other to ensure consistency.

Specials with this Item

Promotions
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
55%
4 Star
27%
3 Star
9%
2 Star
9%
1 Star
0%

Average Attribution Rating

Durability
4.0
Value
4.5
Features
4.1
Design
3.5
Usability
4.4

Joey

Gilbert AZ

Overall
Durability
Value
Features
Design
Usability

Works Great On A single 12 inch sub

October 24, 2010

I have in hooked up to a 12inch Kenwood with power900 and everything works great hits hard doesn't get overheated that much

2 of 2 found this helpful

Help our customers find the most helpful reviews

b

Canada

Overall
Durability
Value
Features
Design
Usability

Cheap

September 20, 2010

Pro's - cheap, CEA 2006 rated numbers, Stays fairly cool for an a/b amp, remote with clipping indicating light. Cons- It has an audible rattle at ~70Hz from the top part of the case... not sure if it is just mine or if they all do. I have it mounted behind the panel above the rear tire, it ran for 3 hours straight into strong clipping when it was about 27C outside before it entered thermal protect. It's driving a cheap 400w boss sub, 8guage wiring kit with 50A fuse.

2 of 2 found this helpful

Help our customers find the most helpful reviews

WESLEY

DULUTH, MN

Overall
Durability
Value
Features
Design
Usability

Jensen Power 900

May 27, 2009

I have had this amp for 6 months now and haven't had any problems whatsoever. It keeps my Infinity 1050W thumping very nicely. I have and have had several Jensen products in the past. Jensen is by far the best value for your money. I would recommend this product to anyone.

2 of 2 found this helpful

Help our customers find the most helpful reviews

Logan

Dallas, GA

Overall
Durability
Value
Features
Design
Usability

amazing for the price

February 17, 2009

i have never really liked Jensen in the past but i heard from some buddies that they were good so i thought i would try it out. i hooked it up to 2 power acoustic 10's in my truck and boy did they beat up a storm and the bass control knob is a great thing to have all and all i would recommend this to anyone looking for a great budget amp

2 of 2 found this helpful

Help our customers find the most helpful reviews

Zack

The Dalles, OR

Overall
Durability
Value
Features
Design
Usability

Good buy!

October 9, 2011

Lots of talk about this amp overheating. I've never had mine overheat in nearly a year of abuse. I've even wired it @ 1 Ohm. sure it got warm, but it never went into thermal protect. Bottom line, if you can tune this amp it wont give you any problems.

0 of 0 found this helpful

Help our customers find the most helpful reviews

rayman

apache junction, Az

Overall
Durability
Value
Features
Design
Usability

Don't Believe the Hype! eh heh heh heh

January 14, 2011

This amp is HORRIBLE. If youre looking for a quality amp that stays cool and gives you nice, clean, hard hitting bass this is definitely not the amp for you. this thing will scorch your hand after 30 minutes or so of listening to music, it puts out 300 watts rms of actual power (a 3rd of its peak), and it rattles somethin awful. I don't know what amp these other people are reviewing but i promise you, if youre looking for an amp with big bass that will power your speakers, do yourself a favor and look elsewhere. I bought this thing as part of a "bass package" and was told it "pounded". dont make the same mistake i did. if you just like a little bit of bass added to your music, this thing will be fine. if youre looking to get your trunk rattling this thing will disappoint you. pay an extra 100 and triple the RMS output of this thing and get something that has a fan and wont burn your fingerprints off.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Bryan

Redlands, CA

Overall
Durability
Value
Features
Design
Usability

great amp for the price

June 21, 2010

This is a very powerful amp for the money you pay for it. Very dependable and nice looking.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Rich

Dardenne Prairie, MO

Overall
Durability
Value
Features
Design
Usability

good subwoofer amp

March 22, 2010

I bought this amp for my son. He is powering two 12 inch subwoofers in his truck with it. It sounds good.

0 of 0 found this helpful

Help our customers find the most helpful reviews

hoede

effy

Overall
Durability
Value
Features
Design
Usability

can you say, OVERHEAT?

May 5, 2009

Definately don't recommend if you're gonna go over 500 watts with this thing, ive got it on a rockford fosgate 12" p3 and the thing will overheat in 15 minutes or less while DRIVING. That's just plain dumb, i know its an $85 amp but still for 85 bucks they coulda put a fan in it. It bumps the heck out of it for a little while but then it goes on protect. IT GETS HOT!!! no joke this thing burnt where i had it mounted in the back of my blazer. u can see the outline PERFECTLY. not cool. buy if u wana run less than 600, if ur tryin to get a decent amount of power, spend more money and get one with a fan. severely disappointed. love this site tho, great buys.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Chris

Monongahela, PA

Overall
Durability
Value
Features
Design
Usability

jensen power 900

January 10, 2009

have it hooked up to 2 sony xplod 12" subs wired at 2 ohms. sounds great. pretty impressive for how cheap it is. hits hard.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Josue

El paso, TX

Overall
Durability
Value
Features
Design
Usability

this amp is pretty good

September 16, 2008

i bought this about a month or so i have it connected to a solo kicker L512 and it hits it pretty good on my new beetle the first day i connected my lights where dimming and i got a capacitor and know i fixed that problem thinking of buying another of this amp for my other car

0 of 0 found this helpful

Help our customers find the most helpful reviews

Accessory Tools and Products

Accessories added

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

Your Price $79.99

Kicker Big 3 Package 1/0 Gauge Big 3 Upgrade Kit

Get all you need including wire cutters to upgrade your power and ground wire.

Your Price $149.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

StreetWires FB8

8 Gauge Firewall Bushing

Your Price $6.95

NVX XDBU4 - Top of the Line!

Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs

Your Price $17.99

Professional Installation for your Car Power Amplifier

Covers labor charges through our professional installer network.

Your Price $89.99

Kicker KI24 K-Series RCA Audio Interconnect Cable

4 Meters (13 ft.) 2-Channel K-Series RCA Audio Interconnect Cable

Your Price $16.95

NVX XIV25 V-Series 2-Channel RCA Cable

16.4 ft of V-Series 2-Channel RCA Audio Premium Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $11.99

NVX XWS1225 12 AWG Speaker Wire

25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $39.99

NVX XWS1625 16 AWG Speaker Wire

25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $13.99

Belva BBSW127 12 AWG Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $14.99

Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $12.99

The Install Bay IB-CAP1F

True 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $37.99

e2 ECAP1 by Scosche - Mid-Level 1 Farad

Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $49.99

Rockford Fosgate RFC1D - Top of the Line 1 Farad

Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $104.99

Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

Your Price $21.99

AutoSound 2000 CD-102

High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.

Your Price $11.99

AutoSound 2000 CD-104

Audiophile reference series test disc for evaluation of all audio components.

Your Price $11.99

Product Summary

Manufacturer

Model Number

POWER-900

UPC

043258303578

Weight

12.00lbs

Internal SKU

power900

Internal Product ID

10300

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Jensen Power 900