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Kenwood KAC-9103D

1800W Max, Class D Monoblock Amplifier

Discontinued
|

Good news and a little bad...

This item has been discontinued

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

kac9104d thumbnail

Kenwood KAC-9104D

OUR PRICE: $219.99

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  • Monoblock Class-D Subwoofer Amplifier
  • RMS Power Output:
    • 500 Watts x 1 Channel @ 4 Ohms
    • 900 Watts x 1 Channel @ 2 Ohms
  • CEA-2006 compliant
  • Top-Mounted controls
  • Preamp Outputs - 1 Pair
  • Power MOSFET Switching Power Supply
  • Variable Low-Pass Filter: 50 - 200 Hz
  • Infrasonic Filter: Off / 15 / 25 Hz
  • High- and Low- Level Input
  • Adjustable Input Sensitivity: 0.2 - 5V
  • Bass Boost Control: 0 - 18 dB
  • Class D Amplifier Circuit
  • RCA Inputs/Outputs
  • Fuse Rating: 30A x 2
  • Signal-to-Noise Ratio: 94 db
  • Dimensions: 11-1/4" L x 14-15/16" W x 2-9/16" H
  • 1-year SonicElectronix.com warranty

Product History:

Kenwood KAC-9106D thumbnail
(newest, current model)
Kenwood KAC-9105D thumbnail
(previous model, replaced by Kenwood KAC-9106D)
Kenwood KAC-9104D thumbnail
(previous model, replaced by Kenwood KAC-9105D)
Kenwood KAC-9103D thumbnail
(previous model, replaced by Kenwood KAC-9104D)
Kenwood KAC-9102D thumbnail
(previous model, replaced by Kenwood KAC-9103D)

Power Specifications - Full Range Channels

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 speakers or subwoofers 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.

500 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 speakers or subwoofers 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.

900 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 speakers or subwoofers equals 1 ohm, 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.

Not Stable
Bridged RMS Power

Bridging refers to combining two channels on an amplifier to create one channel with double the voltage and an increased power output. A 2-channel amplifier will bridge down to 1-channel and a 4-channel amplifier can bridge to create 2-channels. An amplifier is most commonly bridged to drive a subwoofer.

Remember, once you bridge two channels down to one its final impedance will be 4 ohms unless otherwise specified. This rating lists the RMS power created once an amplifier is bridged.

Not Bridgeable

Amplifier Specifications

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.

1800 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.

900 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.
0.5%
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.
1 pair
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.

50 - 200 Hz
Subsonic Filter
Allows you to block (filter) ultra-low frequencies that your subs cannot reproduce.
15 - 25 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.
94 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.
No
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).
Yes
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

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
67%
4 Star
20%
3 Star
0%
2 Star
0%
1 Star
13%

Average Attribution Rating

Durability
4.2
Value
4.7
Features
4.6
Design
4.7
Usability
4.9

Ben

Colchester, VT

Overall
Durability
Value
Features
Design
Usability

Great amp

March 1, 2009

I have this amp powering a 15" Kicker L5. The sub is 750W rms, I have the amp wired at 2 ohms throwing 900W at the sub - it pounds like crazy. Nice looking amp, clean power. 10 out of 10

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Brandon

Irvine, CA

Overall
Durability
Value
Features
Design
Usability

pure power

November 30, 2008

900 watts @ 2 ohms rms is no joke i have this amp powering my alpine type r and it pushes it to the limit. the fan keeps the amp cool and the lights on it look real nice. u buy this amp and u will not be let down

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Chris

Solon, OH

Overall
Durability
Value
Features
Design
Usability

POWER

November 18, 2008

this thing powers my 15" type r like a dream 900 rms of beautiful power at 2 ohms even has a fan to keep cool not to mention it looks pretty cool

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vaughn

framingham, MA

Overall
Durability
Value
Features
Design
Usability

AWSOME

October 28, 2008

I have 1 of these pushing to kickers and man this thing thumps, i had to turn this way down to keep my car from rattling i need to buy some dynamat from sonic but awesome product

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Ricky

Rogers, AR

Overall
Durability
Value
Features
Design
Usability

Great Amp For The Price!

August 11, 2008

This amp is CEA Compliant. Im pushing it at 2 ohms right now. It does not get hot like my friend's amp. The 9103 is fan cooled and has sweet blue lights around the fan. The bass boost, gain, etc are all under the metal plate. That's kind of a con. I totally recommend this amp to anyone who is going to push 900W RMS. Wire it at 2 ohms, and wow. I was blown away. It sounds great at 4 ohms as well. The amp is even 1 ohm stable!

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brett

Columbus, MS

Overall
Durability
Value
Features
Design
Usability

Great Amp!

July 18, 2008

I have this amp pushing 2 diamond d3 15's...they bang!!! its only sitting on 3 bass gain and it rattles your ear drums going down the road! Great Amp!

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Sean

Newport News, VA

Overall
Durability
Value
Features
Design
Usability

GREAT PRODUCT!

July 3, 2008

I have this amp powering 2 Alpine type R's. It hits!!! I am only running 4 ohms right now, but once I get my new box, I will run 1 ohm. I don't know if it will support it even though it's rated for it. We'll see! The only down side is that it does not come with a bass knob.

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Justin

Hiawassee, GA

Overall
Durability
Value
Features
Design
Usability

good but not great

March 4, 2008

this amp is great on 4ohms and 2 ohms but even though it says 1 ohm stable when i had mine professionally wired in 1 ohm it would go into protection mode all the time so i wired it to 4 ohms and it hasn't done it since. another great feature is the internal fan it keeps the amp cool to the touch you can play it for hours and it isn't even hot.

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Bryce

Aurora, NE

Overall
Durability
Value
Features
Design
Usability

Monster

January 31, 2008

I own one of these pushing the 3000W premier sub and she gives her all she can take trust me if you are looking to get some power to your sub this is it.....but on thing you should know be prepared to buy a new alternator or another battery cause this thing sucks a lot of juice from the battery but it is definitely worth it.

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Cory

Fargo, ND

Overall
Durability
Value
Features
Design
Usability

Kenwood

December 6, 2007

I have one of these amps in my cavalier hooked up to 2 12" Diamonds, It will shake the mirrors off of the car parked next to you. Even at 500 watts RMS its a great amp for beginners, but there is always a time when an audio junky feels they need to upgrade.

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Ben

idaho falls, ID

Overall
Durability
Value
Features
Design
Usability

hmmm.

December 4, 2007

I bought this amp with wiring kit, had it pushing 2 kenwood KFC-W3011 in a box i built to specs. It hit HARD for 2 days... On the third day it cut out, wont power back on..

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antonio

waterbury, CT

Overall
Durability
Value
Features
Design
Usability

killer power amp

October 12, 2007

i own this amp,i thougt i needed 1600 watts to power my alpine type-r 12" sub but when i hooked up this beast of a amp i didn't know how powerfull it is,i could of put 2 subs at 2ohm in my van.great buy!!!!!!!!

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jennie

rock island, TN

Overall
Durability
Value
Features
Design
Usability

not good

October 5, 2007

i owned this amp a good while back,not very good one gave out,next one wouldnt even power on.

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Truitt

Denton, TX

Overall
Durability
Value
Features
Design
Usability

Just Bought

August 8, 2007

I just bought this to power my two JL Audio 12" W3's. This amp has too much power for my subs and it is tuned down way low. Its a great buy and would recommend it for everybody that needs the power.

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Leo

Pittston, PA

Overall
Durability
Value
Features
Design
Usability

Nice Amp

February 27, 2007

This amp makes for a nice clean setup with all the wires coming out of one side u can hide everything. It has a lot of adjustments for fine tuning your system, and it makes some awesome power. Only downside is that there is no bass knob to put in ur car.

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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 $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

Universal Remote Level Bass Control

Controls bass level and frequency via RCA/Interconnect connectors on any amp.

Your Price $7.99

Small Universal Remote Level Bass Control

The Scosche RLC is a smaller universal bass remote that connects via RCA inputs.

Your Price $11.99

StreetWires FB4

4 AWG / 4 Gauge Firewall Bushing

Your Price $6.95

StreetWires FB0

1/0 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

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 XIX25 X-Series RCA Interconnect Cable

16.4 ft. of 4-Channel X-Series RCA Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $26.99

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

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

KAC-9103D

UPC

019048169723

Weight

9.00lbs

Internal SKU

kac9103d

Internal Product ID

8515

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: Kenwood KAC-9103D