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

14th Anniversary Sale--More Products Added

Boss CX1100M

1100W Max, Monoblock Chaos Exxtreme Series Amplifier (CX-1100M)

Discontinued
|

Good news and a little bad...

This item has been discontinued

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

cxxm1250 thumbnail

Boss CXXM1250

OUR PRICE: $64.95

View item

Get FAST answers from customers ASK a Question See questions answers

  • Chaos Exxtreme Series Class AB Monoblock Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 250 watts x 1 chan.
    • 2 ohms: 500 watts x 1 chan.
  • Max power output: 1100 watts x 1 chan.
  • Pulse width modulated (PWM) MOSFET power supply
  • Wired remote bass level control included
  • LED power and protection indicators
  • Tuned Bass EQ (0-18 dB bass boost)
  • Input voltage sensitivity selector
  • Speaker-level inputs
  • Variable gain control
  • Thermal and short circuit protection circuitry
  • Soft power-on/off
  • Anodized aluminum heatsink
  • Chrome-plated RCA level inputs
  • Chrome-plated screw terminals
  • Fixed high-pass filter (200 Hz)
  • Variable low-pass filter (35-160 Hz)
  • Frequency response: 9-50000 Hz
  • Dimensions: 11-7/8"L x 10-9/16"W x 2-5/8"H
  • 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
  • 2-year Manufacturer's warranty

Product History:

Boss CXXM1250 thumbnail
(newest, current model)
Boss CX1100M thumbnail
(previous model, replaced by Boss CXXM1250)
Boss CH850M thumbnail
(previous model, replaced by Boss CX1100M)

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.
250 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.
500 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.
1100 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.

1100 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.

500 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.
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.
0.01%
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.
Yes
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.
No
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)
High-Pass Crossover Frequency
The high-pass crossover frequency can be a fixed crossover point or a variable crossover range. A variable high-pass crossover allows you to select a specific crossover point which allows frequencies above the set crossover point to pass, while making frequencies below 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.

Fixed (200 Hz)
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.

35 - 160 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.
103 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 - 18 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.
25A x 1 
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
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
6 years
Labor Warranty Duration
6 years
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
44%
4 Star
40%
3 Star
8%
2 Star
6%
1 Star
2%

Average Attribution Rating

Durability
4.3
Value
4.6
Features
4.1
Design
4.3
Usability
4.5

Rick

Bakersfield, CA

Overall
Durability
Value
Features
Design
Usability

Great Amp!

April 1, 2011

I have this amp pushing two Sony Xplod XS-GTX120LW 12" Subwoofers. They sound great and hit hard. I listen to mostly country so there's a lot of bass drum coming through. This amp does a great job and gets a little warm but I have it in the trunk where's there's a lot of air flow. I recommend this amp for anyone wanting a good price and good quality.

2 of 2 found this helpful

Help our customers find the most helpful reviews

mikey

spokane,wa

Overall
Durability
Value
Features
Design
Usability

great product at great value

April 30, 2013

Have this amp hooked up to 3 JL audio 10s this amp makes these 10s work it hits hard. Had a competition with a buddy he had two 15s hooked up to a 750 watt amp and mine tied with him.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Patrick

Evergreen Park, IL

Overall
Durability
Value
Features
Design
Usability

Boss amp

April 28, 2013

Good mono amp dont fade or get hot Running one 12" MTX

0 of 0 found this helpful

Help our customers find the most helpful reviews

t dog

bay city tx

Overall
Durability
Value
Features
Design
Usability

ok amp

February 10, 2013

I bought this amp about 6 months ago its ok but if I had to do it again I wouldn't buy it save your money and buy a quality amp you get what you pay for

0 of 0 found this helpful

Help our customers find the most helpful reviews

Darren

Canada

Overall
Durability
Value
Features
Design
Usability

Poor quality power.

February 2, 2013

I have had this amp for about 6 months now, i originally had it powering 2 10" MTX terminators at 150W RMS each, the amp did great with very little clipping with theese speakers, about 50% gain. I had since upgraded my subs to 2 10: Precision Power A.10 with the plan to upgrade my amplifier in the new year, i powered them up with this amp, wired at the same 2ohms as the MTX subs, with about 75% gain, sounded great for the first month, but into the second month the amp began to wear out and clipping occured at that gain level. I turned the gain down to 50% again and it kept clipping, well now i have $200 worth of subs with blown voice coils, I will not buy another boss product and will be ordering a Hifonics Brutus 1200.1d to replace this. use this with low powered subs and you'll be fine. Definately not a quality amp though.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Awwjard

Owensboro, KY

Overall
Durability
Value
Features
Design
Usability

Can't beat it bang for buck!

February 1, 2013

I have this amp powering 2 Infinity 1062s in a sealed box and they pound hard. I replaced an older Kenwood 6201 with this amp and there is a noticeable difference. The BOSS provides way more sound. So what if BOSS amps are rated in max power. Pay attention to the RMS rating and you won't be disappointed. Amp always runs cool. Match it with the right subs and you've got the best bang for the buck mono amp available.

0 of 0 found this helpful

Help our customers find the most helpful reviews

implicitchunk

texas

Overall
Durability
Value
Features
Design
Usability

good for themoney

January 15, 2013

its a great buy for the money I highly recommend that saving and getting higher quality amp would be best but for those who are on a budget this is good and it handles power well if you know what you are doing

0 of 0 found this helpful

Help our customers find the most helpful reviews

Randy

Salisbury, NC

Overall
Durability
Value
Features
Design
Usability

great amp

January 2, 2013

I bought one of these since i was on a budget to power a 10" Rockford, and it does that perfectly. Enough settings to dial it in just right and the bass control works good too. Ive recommended this amp to a friend who is now happily using it to power two kicker 8's. Never had a single problem and it dont seem to get real hot under my seat with not much airflow.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Darren

Canada

Overall
Durability
Value
Features
Design
Usability

Good bang for buck

October 12, 2012

Amp is great, i use it to power 2 10" subs and it hits no problem, only downfall is the bass remote that comes with it. I am less than pleased with the quality of it, very cheap feeling plastic and when plugged in i lose about 20% volume.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Louis5377

Downers Grove, IL

Overall
Durability
Value
Features
Design
Usability

Great amp for the money

September 21, 2012

Bought this amp to drive surrounding speakers in my van. I installed kicker 3.5 in and Orion 6x9 in each corner wired in parallel so this amp drives 8 sets of speakers at 2 ohm load. Sounds great, does not get too hot at full load, lots of headroom, no clipping or ignition noise. Nice - will buy again.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Pablo

Winnemucca, NV

Overall
Durability
Value
Features
Design
Usability

Very nice amp

June 9, 2012

I have this hooked up to two 10" FLI audio subs and pushes them relly good at 2 ohm's.

0 of 0 found this helpful

Help our customers find the most helpful reviews

HD

shasta lake

Overall
Durability
Value
Features
Design
Usability

great value

April 2, 2012

This amp powers 2 1000 watt subs with no problem. The rms response is wonderful for the price. The amp looks great and takes a beating, ive gotten it wet stacked stuff on top of it and it still works great. Don't pass it up just because you dont know the name.

0 of 0 found this helpful

Help our customers find the most helpful reviews

b-series ryder

Salisbury, NC

Overall
Durability
Value
Features
Design
Usability

pretty good

March 21, 2012

Product was installed into a bandpass enclosure. I don't recommend doing that. Specs said its ok but didnt perform to my expectations. I would like to have tried it in a different enclosure. It may have preformed better.

0 of 0 found this helpful

Help our customers find the most helpful reviews

charly

edinburg tx

Overall
Durability
Value
Features
Design
Usability

GREAT PRODUCT

March 16, 2012

Boss cx1100m works perfect.

0 of 0 found this helpful

Help our customers find the most helpful reviews

delfino

Plains, NY

Overall
Durability
Value
Features
Design
Usability

Muy bueno lo recomiendo

March 11, 2012

I was looking for good bass in my minivan and it turned out perfect. I can feel the vibration in the distance. Set in a box with 2 subs and they sound the best at a reasonable price.

0 of 0 found this helpful

Help our customers find the most helpful reviews

GWD

Wilmington, Delaware

Overall
Durability
Value
Features
Design
Usability

Great AMP

January 23, 2012

This amplifier has definitely held up to expectations. It has a lot of power. I have it running into a 175w RMS 300w peak 12" subwoofer. I haven't had a single issue with it. It's worth the try/buy.

0 of 0 found this helpful

Help our customers find the most helpful reviews

M dog

Lincoln, NE

Overall
Durability
Value
Features
Design
Usability

Its Okay

January 17, 2012

I have owned this amp for about 6 months now, and it just cut out. I had my sub wired for two ohms which the sub can handle. It couldnt and would overheat. I rewired my sub to 4 ohms and now it sounds better. For the price its an okay amp. But for a little bit more you should probably just go with something a little more reliable.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Issa

Monroe, UT

Overall
Durability
Value
Features
Design
Usability

ya get what ya pay for

January 9, 2012

It's alright. Installation was easy. So far, (about 3 months later) it seems pretty durable, doesn't get hot. The bass knob is useless, i wouldn't recommend even installing it. Just use the sub controls on your deck. I have it pushing a kicker shallow mount 4 ohms rated at 400rms and this just doesn't push it like i feel it could be pushed. Will upgrade at a later date. Probly with a higher quality amp. Overall, you get what you pay for. Kudos to Sonic though. Their customer service, and shipping are first class. Have ordered several items and their shipping is always prompt.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Pearson

Itasca, Tx

Overall
Durability
Value
Features
Design
Usability

Awesome Amp

December 30, 2011

I would recommend this amp! I installed it for a friend of mine in the navy, I had his car. I hooked it up to a 12" Kicker Comp Subwoofer. It pumped that sub without a problem, I was VERY impressed!! Pros: Amp Quality, Reliability, Design, Power Cons: The wheel to select how hard you want it to thump didnt do much.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Jason, Mobile Enclosures

New London, CT

Overall
Durability
Value
Features
Design
Usability

Not bad at all

December 27, 2011

Well, I am a sound quality guy, so everything in my vehicle is MB quart and focal etc. But I got this amp as a temp amp until I got my custom rack finished for the quarts. And I have to say, I was impressed. Especially for the stereotype that BOSS has as a reliable brand. So, it must be pointed out that I have owned many amplifiers over the years and aside from the black amplifiers that BOSS sells (which are actually not good at all), this one and the other silver models keep up well with everything else for the price. If you are looking for something simple, effective, and satisfactory, as a professional audio engineer, I must say, you should give this a try. I never had to replace it. Never had to push it hard. Never had problems with it at all. As long as you use it as intended, you should be fairly impressed with the quality of the cx models from BOSS. But stay away from any of the black amps they sell.

0 of 0 found this helpful

Help our customers find the most helpful reviews

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 $89.99

Stinger SK4641 4 Gauge Wiring Kit

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

Your Price $64.99

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 $29.99

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

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

Your Price $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 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

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

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

SMD DD-1 Distortion Detector

Set the gain of an audio amplifier quickly and accurately

Your Price $149.99

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

Hide answersShow all answers | Sort by
No questions have been asked about this item. Be the first!

Product Summary

Manufacturer

Model Number

CX1100M

UPC

791489107938

Weight

8.00lbs

Internal SKU

cx1100m

Internal Product ID

11591

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: Boss CX1100M