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Kenwood KAC-7205

1000W Max 2-Channel Performance Series Stereo/ Bridgeable Power Amplifier

Discontinued
|

We apologize

This item has been discontinued

Fan Cooled and Powerful

The new Kenwood Performance series amplifiers are amps that truly live up to their name. Delivering high performance constantly and consistently. The Kenwood KAC-7205 is a high powered amplifier with a maximum output of 1000 watts. That power is distributed into two separate channels, or the two channels can be bridged to a single channel. The back of the amplifier features two cooling fans that allow the internal heat to quickly escape the amplifier. This helps the amplifier stay cool no matter how much use it gets. A low-pass filter is built-on to the board of the amplifier and can be adjusted with the dials on the front panel. This helps make the KAC-7205 amplifier the perfect choice for powering a subwoofer. It is also fully compatible with 2 ohm loads, which give the amp a wider variety of compatible speakers and subwoofers. Kenwood has also made this amplifier perfect for those that want to keep a factory stereo installed in their car by accepting speaker level inputs to provide an input signal. This helps make the installation into OEM systems easier and faster. Overall, this 2 channel amplifier from Kenwood proves to be a powerful and efficient choice for any car audio system.

Amplifier Features:
  • 2-Channel Class AB Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 170 watts x 2 chan.
    • 2 ohms: 250 watts x 2 chan.
    • Bridged, 4 ohms: 500 watts x 1 chan.
  • Max power output: 500 watts x 2 chan.
  • MOSFET power supply
  • LED power indicator
  • Tuned Bass EQ (0-18 dB bass boost at 40 Hz)
  • Speaker impedance: 2-8 ohms (4-8 ohms bridged)
  • Bridgeable operation
  • Speaker-level inputs with signal sensing for automatic turn-on
  • Short circuit, DC offset, overload, and thermal protection circuitry
  • Aluminum die cast heat sink
  • Built-in cooling fan
  • Gold-plated RCA level inputs
  • Gold-plated screw terminals
  • Variable low-pass filter (50-200 Hz, 24 dB/octave)
  • CEA-2006 compliant amplifier
  • Frequency response: 5-50,000 Hz
  • Dimensions: 13-3/4"L x 2-5/16"H x 9-3/8"D
  • 4-gauge power and ground leads recommended. Contact us for information regarding a discount on a select amplifier kit when purchased together.
  • 1-year Sonic Electronix warranty

Product History:

Kenwood KAC-7205 thumbnail
(newest, current model)
Kenwood KAC-7204 thumbnail
(previous model, replaced by Kenwood KAC-7205)
Kenwood KAC-7203 thumbnail
(previous model, replaced by Kenwood KAC-7204)
Kenwood KAC-7202 thumbnail
(previous model, replaced by Kenwood KAC-7203)
Kenwood KAC-7201 thumbnail
(previous model, replaced by Kenwood KAC-7202)

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.

170 watts x 2 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.

250 watts x 2 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.

500 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 occurring. 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.

500 watts x 2 channels

Amplifier Specifications

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.
2
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.

1000 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.
4 ohms
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.
0.8%
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)
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
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.
80 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
72%
4 Star
21%
3 Star
5%
2 Star
0%
1 Star
2%

Average Attribution Rating

Durability
4.4
Value
4.6
Features
4.4
Design
4.6
Usability
4.7

John

Smiths, Alabama

Overall
Durability
Value
Features
Design
Usability

Nice amp! But...

March 29, 2012

This amp looks nice and works good with my speakers and is good for the price. The only downfall to me is that it has a safety switch built into it, so when it gets too hot, it kicks off. Which is good so you dont blow any fuses, but then the speakers won't work at all. They come back on after a few mins and then go right back off, either the fans in the amp are not working right or I just have bad luck.

2 of 2 found this helpful

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Tucker

coquille, OR

Overall
Durability
Value
Features
Design
Usability

Kenwood KAC-7205

May 18, 2010

This is a great amp. the first one i have ever owned where you could audibly tell that the adjustable LPF was actually making a difference. I used to own a Cadence ultra Q drive 3000 that put out slightly higher wattage but did not have the SQ i was looking for. it made my MTX subs sound sloppy because it was letting in the high notes. I listen to a lot of metal and when those bass drums start to get fast i like to be able to hear them clearly. This amp will do that no problem with the bass EQ turned down and the gain up. Im going to upgrade my 12" MTX terminators to the alpine type r 10" because it will be tighter and more punchy.

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Ryan

Canada

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Value
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Usability

Just Installed

March 13, 2013

Just installed this amp to 2 10" JL's. It's working great, sounds amazing. Fans are noticeable when no music is on and its sitting close to you (mine is mounted on the back of my collapsible seat)

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Maurice

Camden, DE

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Value
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Usability

Decent Sub

January 22, 2013

Decent amp....first time putting a system in my car and I should have gone with a Mono amp for a little bit more bang but it does the job pretty nice. Overheats quite a bit on songs that are heavy on the bass. Gonna try 0/1 gauge wire and actually putting a capacitor on see if that stops the overheating like some people suggested. But overall I'm happy with what I got. Powers my Power Acoustik P3-15W pretty decently. Issue might need a better sub but my kenwood blew so went with the Acoustik.

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Jordski

Minnesota

Overall
Durability
Value
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Design
Usability

Couldnt have made a better choice

January 15, 2013

My friend had a Kenwood amp and i went off of his referall, and i couldnt have made a better choice, easy to install, and when i went to bridge em it had it labeled, for my first amp this works great and its a great value.

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Kevin

Grayson, GA

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Durability
Value
Features
Design
Usability

I use this amp for 8 ohm midrange/midbass speakers and 8 ohm tweeters

December 3, 2012

I know a lot of people use this amp for a subwoofer, but i actually use it for mids and highs. i use this amp to power 4 8ohm cadence fx6m8 midrange speakers and 2 8ohm cadence xt20 tweeters. I have 2 speakers and 1 tweeter wired to a 2.67ohm load on 1 channel on this amp and the other 2 speakers and 1 tweeter on the other channel on this amp. The midrange speakers push 75RMS each and the tweeters push 75RMS each. So this amp is running at 225RMS at 2.67 ohms per channel. This amp pushes my speakers and tweeters really loud, my car counds like a rolling house party or club. Overall, this amp has never given me any problems. It never went into protect mode, and it has never gotten hot nor even gotten warm. Also, this amp is CEA compliant so you can have peace of mind.

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Loud subs

Pacific, Missouri

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Value
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Design
Usability

Great Value

October 3, 2012

Upgrading from an old 700 watt amp to this made a huge difference on my 2 10" subs with a ported box. Very good value. A lot of power with clean sound if tuned properly

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jimmy

montevallo, AL

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Value
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Usability

great amp great price

July 16, 2012

Great amp. Have it with 2 12"s. Sony sounds great, but drains battery when shut down. Yet, I haven't any power being used per amp meter. I would still recommend.

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Blak Bettie

Elk Grove Village,IL.

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Value
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Design
Usability

Kenwood you done it again

June 26, 2012

This has been the second time I've own a Kenwood product and it is doing the job for me.I really like the way it lights up,not to bright and cool blue and red

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robert

marietta, GA

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Value
Features
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Usability

Not bad!

April 6, 2012

I have had better but this amp hasnt failed me yet ....well on one or two ocasions but it was my fault... it does make some heat for sure but it has great power for the money i have it powering two Polk Audio db840DVC 8in subs and it does the job well.

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dclar4

Westbrook, CT

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Durability
Value
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Usability

Great Amp

February 1, 2012

GREAT AMP! It really rocks my car!! Couldn't be happier and the price is more than worth it! Great sound, durable, easy wiring and tuning to get that perfect sound. I love it, I would recomend to anyone looking for a great sounding amp for a great price!

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Jonathan

Xenia, OH

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Value
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Usability

Yet Another Great Kenwood Product

January 14, 2012

I bought this amp to power my 12" Kicker subwoofer. The cooling fan is a great feature and even through hours of use it still remains cool with little to no heat being given off. As I continue to upgrade my car's audio system, Kenwood will continue to be my brand of choice.

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Larry

Albuquerque

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Value
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Usability

The car Guy

January 10, 2012

I have had these amps for about a month running 2 10" rockford fosgates and these are the best bass I have ever had. Loud crisp and right on the money.

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jjjjjj

iowa

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Durability
Value
Features
Design
Usability

junk

January 6, 2012

Crappy as hell keeps powering off and blowing fuses.

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chris

Saint Louis, MO

Overall
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Value
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kenwood

November 17, 2011

My best friend has this amp and it is great... the looks are great and it pushes out just about as much as its marketing. It is a great amp for the right sub or subs.

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nathaniel

spokane wa

Overall
Durability
Value
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Usability

great deal built right

September 3, 2011

I bought it about 8 months ago and still works great. i have the bass boost set at 8 out of 12 and it is plenty. anything more would be too much. is pushing my 1000watt orion and have never had a problem. i recomend it, especially for the price.

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Marcus

Covington, GA

Overall
Durability
Value
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Usability

Kenwood

August 5, 2011

Very powerful amp.

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kwood

richmond, va

Overall
Durability
Value
Features
Design
Usability

KAC-7205

July 26, 2011

Great amp like all the adjustable settings on it. very easy to set up and set to anyones perfered settings. i had this running two kenwood 12s at one time and and i never had a problem never over heated or cut off. later on i added another 12 and i ran all three of this amp i know it was very under powered but it still got down. very very pleased

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Joe

San Diego, CA

Overall
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Value
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Usability

pretty good

July 14, 2011

Pushes strong, good quality amp here, i had to get something a bit more powerful but this thing is great if ur looking to push a couple small subs.

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Jon

West Virginia

Overall
Durability
Value
Features
Design
Usability

Kenwoos KAC-7205

June 16, 2011

I have had this amp hooked up to two Hifonics 12's for about 6 months now and never once has it gave me any trouble. Great amp.

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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

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 2-Channel RCA Audio Interconnect Cable with Twisted Pair Construction

Your Price $11.99

NVX XIX25 X-Series Interconnect Cable

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

Your Price $26.99

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 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

KAC-7205

UPC

019048187451

Weight

9.00lbs

Internal SKU

kac7205

Internal Product ID

22733

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-7205