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Jensen Power 900.1

900W Max Power Series Class AB Monoblock Amplifier with Black Gloss Finish

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List price $139.99

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$84.99

with warranty

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Bundled Savings with this Product

=

25% off a 4 Gauge Amp Kit with Purchase

You will need an amp kit to install your amp, and the Belva BAK42 is the perfect kit for this amp. For a limited time, when you click "Add Both to Cart", you'll receive 25% off the amp kit with the purchase of select amplifiers.

7.50

37044

294

Jensen Power 900.1

$84.99

+

25% OFF

Belva BAK42BK (Black)

$29.99

Special Price $22.49 ($29.99 if purchased separately)

Belva BAK42BK (Black)

• Complete 4 Gauge 2-Channel Amplifier Installation Kit
• Designed Specifically For Car Audio Systems Up to 1000W RMS
• Premium Power and Ground Wire Provides Optimal Power Transfer

(Offer 1 of 1)

Combined Total Price

$107.48

You Save $7.50

  • Monoblock Power Series Class AB Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 300 watts x 1 chan.
    • 2 ohms: 450 watts x 1 chan.
  • Max power output: 900 watts x 1 chan.
  • Pulse Width Modulated MOSFET power supply
  • Remote input level control with 5m cable
  • LED power (green) and standby/fault (red) indicators
  • Variable bass EQ (0-12 dB @ 45 Hz)
  • Soft Start Turn-on
  • Monoblock operation
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-Way System Protection circuitry (thermal, DC-Offset, and speaker short protection)
  • Heavy duty extruded heatsink for extreme heat dissipation
  • High current bi-polar output transistors
  • Optimized class AB design minimizes distortion and reduces idle current
  • Chrome-plated RCA level inputs
  • Chrome-plated screw terminals
  • Variable Low-Pass Filter (40-300 Hz, 12 dB/octave)
  • Subsonic Filter (10-40 Hz @ 12 dB)
  • Signal-to-Noise Ratio: >100 dB
  • Frequency Response: 5-300 Hz
  • Variable Input Level: 400mV - 5V
  • THD (Total Harmonic Distortion): 0.02%
  • Fuse Rating: 2 x 30 amps
  • Dimensions: 9"D x 15-3/4"W x 2-1/2"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 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.
300 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.
450 watts x 1 channels
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.

AB
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.

450 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.
0.02%
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)
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 - 300 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
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 12 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Yes
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 
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.
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.

No
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.

Specials with this Item

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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
53%
4 Star
27%
3 Star
13%
2 Star
7%
1 Star
0%

Average Attribution Rating

Durability
4.1
Value
4.7
Features
4.3
Design
4.5
Usability
4.5
Owen

Greensboro, NC

Overall
Durability
Value
Features
Design
Usability
Wouldn't Recommend

March 10, 2012

This amp has had so many problems. When i first got it in October it worked great, it pushed my 12s hard. But after ten minutes of not even full power it heats up and goes into protect mode. And i have only heard it a few times since november because it doesnt work in the cold. This amp is terrible. Do not buy if you live anywhere where the temperature drops below 50 degress.

2 of 2 found this helpful

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Phil

Naples FL

Overall
Durability
Value
Features
Design
Usability
Jensen power 900.1

December 25, 2014

Works well and pushes a smooth wattage to power my 8" L7 kicker. A great pair and the remote feature is a must

0 of 0 found this helpful

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A-aron

aurora Co

Overall
Durability
Value
Features
Design
Usability
great value

June 17, 2014

This amp is a great amp to buy. And its for a low price deffenlly recommend!!!

0 of 0 found this helpful

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Dre

Canada

Overall
Durability
Value
Features
Design
Usability
Beautiful Amp

April 29, 2014

It's awesome, exactly what i wanted, great quality in terms of the product build and terminals. Manual had the answer to all my questions and all the specs are what they were listed as.

0 of 0 found this helpful

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Ears

Eau Claire, WI

Overall
Durability
Value
Features
Design
Usability
Great mono amp for Price

March 25, 2014

This is one of the cheaper amps, but does rated or close to rated power. 60 amps of fuses for 450rms @2ohms. For people who complain about fuses popping and this amp not working, YOU ARE WIRING YOUR SUBWOOFER INCORRECTLY. Clearly not one ohm stable and some reviews I read people blame the amp. Know how to use your stuff. Great amp, gets any sub in the right enclosure loud.

0 of 0 found this helpful

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Gregar

Greeley, CO.

Overall
Durability
Value
Features
Design
Usability
Works great!

March 12, 2014

I installed this amp over a month ago into an inclosed compartment in the back of a SUV. It has worked flawlessly without over-heating since. I really like the remote power control that comes with the unit too. It makes for easy volume control to the sub.

0 of 0 found this helpful

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Rick

Bartlesville, OK

Overall
Durability
Value
Features
Design
Usability
Great Value

September 17, 2013

Some of my friends spent more than $135.00 for their amps. After hearing mine and what I spent, they wanted to hook it up to their subs. I let two try it. They were impressed with the output and wished they had known about the Jensen 900.

0 of 0 found this helpful

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David

Uniontown, PA

Overall
Durability
Value
Features
Design
Usability
Good enough to power smaller subs

July 30, 2013

I bought this to match up to my 12 inch Kicker CVR dual 4 ohm sub, wired to 2 ohm impedance. It was a decent sounding combination but after the amp began to overheat (despite the fact air is able to be around and go underneath the amp) I decided to upgrade to JL Audio

0 of 0 found this helpful

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Timmy

Lake Worth, TX

Overall
Durability
Value
Features
Design
Usability
It's a keeper

May 1, 2013

Bought this amp and still using it.. Couldn't ask for more really.. Great sound quality.. Great amplifier..

0 of 0 found this helpful

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Memphislover

Richmond, VA

Overall
Durability
Value
Features
Design
Usability
Not worth it

February 28, 2013

I bought this amp thinking that it would be good to power my 15' Kicker CVR. I wasn't looking for big bass but I wanted a little bit of punch.. It pushed it good at first (for like a week), then the fuses blew. Then I bought new fuses and they blew within an HOUR! I had 4 gauge wiring though. My guess is that I had too much power into this amp and it was trying to push a bada** speaker. I wouldn't recommend this if you are looking for awesome bass, but if you want to push a little 10" sub just to have a little boom or some 6x9's, then go for it.

0 of 0 found this helpful

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dave

Virginia

Overall
Durability
Value
Features
Design
Usability
awesome amp

January 14, 2013

Great amp for the price. Love the bass control knob. I have it powering a 12" alpine type r. It is a liitle too big for concealment.

0 of 0 found this helpful

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Richard

Bartlesville, OK

Overall
Durability
Value
Features
Design
Usability
Great Value

January 11, 2013

Was simple to install, good power output. Good deal for the price.

0 of 0 found this helpful

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henry

Phoenix, AZ

Overall
Durability
Value
Features
Design
Usability
Decent Amp for the price.

July 12, 2012

This is a decent low level amp, but now into summer I am having much trouble with the amp overheating BEFORE I even get into the car. If my car sits in the sun for an hour or two, the amp will not power up the sub, goes into a safe mode.

Mostly this does not bother me since I usually have my car in the garage or under covered parking, but for anyone who parks in the sun often I would not recommend this amp. Save your money for a brand name amp.

0 of 0 found this helpful

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boom of madbendesigns

ft myers florida

Overall
Durability
Value
Features
Design
Usability
jensen power 900.1

May 11, 2012

I installed one of these for a customer very easy to work , very user friendly. Did some testing with this amp and it comes very close to the stated power rating . No second battery needed. I highly suggest and recommend this product

0 of 0 found this helpful

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Dredz

My Block, USA

Overall
Durability
Value
Features
Design
Usability
Great AMP SO FAR

April 25, 2012

I have this amp pusing 2 ZSTAT 12's and it hits pretty hard, I have not had any problems with this amp, it could use a little more true power though.

0 of 0 found this helpful

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Accessory Tools and Products

Accessories added

NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

The reviews speak for themselves, this is awesome wire with everything you need!

Your Price $66.99

Stinger SK4641 4 Gauge Wiring Kit

Get a high quality amp kit from Stinger to get the most from your new amp!

Your Price $61.99

Belva BAK42 4 Gauge Amplifier Installation Kit

Great amps need great wire at a great price. This amp kit has everything you need!

Your Price $23.99

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

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

Your Price $56.99

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 $151.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $31.99

StreetWires FB4

4 AWG / 4 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

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 $11.99

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 $30.99

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 $99.99

Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

Your Price $21.99

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Product Summary

Manufacturer

Model Number

Power 900.1

UPC

043258304889

Weight

10.00lbs

Internal SKU

power9001

Internal Product ID

37044

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 900.1

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