Kenwood amplifiers have earned a strong reputation for rugged, no-nonsense reliability and superior sound quality. They feature efficient power supplies and beefy internal components so they'll pump up a ton of clean, crisp sound at a great price.

The 2-channel KAC-5204 amp delivers 60 watts RMS per channel to your full-range speaker system, which will really improve your sound quality dramatically. This tough little amp will bring new life to your factory speakers, but you'll really notice the difference when you pair it with new aftermarket speakers. You'll hear all the tonal color, depth, and detail you've been missing, whether it's the slide of a finger on an acoustic guitar, or the subtle tones of your favorite singer's voice.

You can also run the KAC-5204 in mono mode to provide 150 watts of RMS power to a subwoofer. In addition to the RCA preamp inputs, you'll find handy speaker-level inputs that allow the amp to work in just about any kind of system.

Product Highlights:

  • 2-channel car amplifier
  • 60 watts RMS x 2 at 4 ohms (75 watts x 2 at 2 ohms)
  • 150 watts RMS x 1 bridged output at 4 ohms (4-ohm stable in bridged mode)
  • selectable low-pass filter (80 Hz at 12 dB per octave)
  • Class AB design and MOSFET power supply
  • CEA-2006 compliant
  • preamp and speaker-level inputs
  • requires 10-gauge power and ground leads — wiring and hardware not included with amplifier
  • fuse rating: 25A x 1
  • 9-1/8"W x 2-5/16"H x 8-3/4"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

Hands-on research

What's in the box?

Download owner's manual

  • 2-Channel amplifier (with 25A ATO fuse inserted in chassis)
  • 8" Speaker-level input harness
  • 4 Self-tapping screws (4mm diameter x 16mm)
  • Rubber terminal cover
  • Instruction Manual (Eng/Fre/Spa)
  • Warranty card

Product Research

Features
Controls
Connections

Features

MOSFET Switching Power Supply: The Kenwood KAC-5204 Two-Channel amplifier is equipped with a MOSFET switching power supply. Compared to conventional power supplies, the MOSFET amplification circuit is smaller and more efficient, and it delivers increased power with less distortion and absolutely zero on/off switching noise.

CEA-2006 Compliant: CEA-2006 is a new system of testing & measurement methods for mobile audio amplifiers. This voluntary standard advocates a uniform method for determining an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring power uses a DC input voltage of 14.4 volts and the RMS power output is measured into a 4-ohm load, with 1% or less Total Harmonic Distortion (THD) plus noise, and at a frequency range (for full range amplifiers) of 20 Hz to 20,000 Hz. Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4 ohms. CEA-2006 allows consumers to compare car amplifiers and receivers on an equal basis. The Kenwood KAC-5204 under CEA-2006 regulations is rated at 60 Watts RMS x 2 channels with a 75 dBA signal to noise ratio.

2-Ohm Stable: The amplifier can support a 2-ohm stereo load. The amplifier is rated at 75 watts RMS x 2-channel in 2-ohms.

Bridgeable: The two-channel amplifier can be bridged for a mono 4-ohm load. The amplifier is rated at 150 watts x 1-channel RMS when bridged.

Cast Aluminum Heat Sink: The Kenwood KAC-5204 utilizes a cast aluminum heat sink design to ensure that the amplifier stays at its optimal temperature.

Protection circuitry: The amplifier features protection circuits that will turn the amp off in case of the following events:

  • Speaker output contacts ground.
  • Speaker wire short-circuits.
  • Unit malfunctions and DC is sent to speaker output.
  • Internal temperature is too high.
  • Loss of ground of head unit or amp.

Power Indicator: When the power is turned on to the amplifier, the Power indicator (on top of the amp) will light up red. This indicator will turn off with the amplifier and will turn off if the amplifier goes into protect mode.

Controls

Gain: To accommodate the varying range of signal levels coming from today's factory and aftermarket radios, the Kenwood KAC-7205 features an adjustable gain control (0.2-5.0V). This means that no matter what kind of radio is connected to this amplifier, the appropriate gain control adjustment can be made to ensure loud, clear, distortion-free music.

Low Pass Crossover: The amplifier features a fixed 80Hz (-12dB/oct) low-pass filter which can be turned On or Off.

Connections

Power Connections: The power and ground connections are 0.5625" wide screw terminals that will accommodate up to 4-gauge wire. The remote turn-on terminal is 0.3125" wide and will accept up to 8-gauge wire. A Phillips-head or flat blade screw driver (not supplied) is required to tighten/loosen the terminals. Spade connectors are recommended for the power, ground, and remote wires.

Speaker Outputs: The Kenwood KAC-5204 is equipped with two pair of speaker terminals. All four speaker terminals are 0.3125" wide  screw terminals and will accommodate up to 8-gauge wire. A Phillips-head or flat blade screw driver (not supplied) is required to tighten/loosen the terminals. Spade connectors are recommended for the speaker wires.

Note: The speaker output terminals can be used in stereo or bridged mode.

Line Level Input: The two-channel amplifier is equipped with a pair of RCA line level inputs.

Speaker-level input: Multi-pin input for use with included speaker level input harness The KAC-5204 comes with a two channel speaker level input harness. Once you splice the speaker wires from the receiver to the harness, you have plug-in convenience to the amplifier. This feature makes it easier to add an amplifier to a factory radio or to a receiver with no preamp outputs. The maximum power output from the source receiver can be no more than 40 watts.

Fuse: The amplifier is equipped with a 25-amp ATC fuse.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Kenwood KAC-5204 Reviews

Average Customer Review:

35 reviews
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packs a punch

Written By S, Astoria, ny on Thursday, February 23, 2012

Crutchfield Customer Review (What's this?)

I used this for a single 8" JL sub off of the bridged setting and it is a great combo. Simple in design. Gets warm when running it so make sure it has ventilation. Looks pretty cool and runs strong for hours.

Pros: good size for what it can output. great value

Cons: thought it could use rubber feet to give it shock absorption and some elevation for cooling the bottom.

In bridged mode

Written By SteveM, Tampa, Fl on Friday, February 17, 2012

Crutchfield Customer Review (What's this?)

Don't know much about amps - but it sounds great (in bridged mode) with a kicker 10" sub - doesn't overheat, doesn't cut out once installed properly, good reputable power for the price. My bass combo won't rock out the neighborhood, but it's perfect for someone looking to upgrade the factory system and get some solid bass.

Pros: Price Power Reputation Brand Name Doesn't cut out/overheat

Cons: None yet.

Bang for the buck.

Written By Kirkland, Morganfield, KY on Thursday, February 02, 2012

Crutchfield Customer Review (What's this?)

Considering the price I gave for this amp it is well worth the money. It is more than enough power for one 10" Rockford sub when bridged. I used an unported box and stuffed it with cotton. It seems to get the job done with little distortion. This kept me well within the budget I wanted to spend.

A great value

Written By Mike P, Ponte Vedra Beach, FL on Tuesday, January 31, 2012

Crutchfield Customer Review (What's this?)

I am very happy with the KC 5204. The sound is wonderful. It is a first rate product and it is reasonably priced.

Pros: Well built, good value, good performance.

Kenwood KAC-5204

Written By Anonymous, Runnemede, NJ on Saturday, January 28, 2012

Crutchfield Customer Review (What's this?)

Works great for my needs! Replaces a JBL amp that blew a channel.

kenwood KAC -5204

Written By jesus, newnan ga. on Saturday, January 28, 2012

Crutchfield Customer Review (What's this?)

excellent product.It is doing a great job driving 2 12" kicker subs in a non ported box.Very clean sound.

Pros: small and powerful!!!!!!!!!

Great amp for the price

Written By Ryan, Wichita, KS on Friday, January 27, 2012

Crutchfield Customer Review (What's this?)

We wired this amp thru the speaker wires, and for the price, I am shocked how well it performs. It has exceeded my expectations for the price that I paid.

Great Amp for the value price

Written By Brett C, Albemarle, NC on Sunday, November 13, 2011

Crutchfield Customer Review (What's this?)

Really amazed for the budget price. I purchased 2 of these amps. 1 drives a pair of BA S95 and the other drives a JL 10" W1V2 sub in a sealed enclosure. I have the gain for the pair of 6x9 at almost min and the gain for the sub at 1/2 gain and am able to drive at 100% volume with no distortion, except for the rattle in a budget friendly 93 Olds Ciera. Highly recommend this amp to the budget minded consumer.

Pros: Price and power range for budget friendly work car

Cons: No dislikes for intended use

Kenwood KAC-5204

Written By bjk, Boyne City, MI on Sunday, November 06, 2011

Crutchfield Customer Review (What's this?)

Time will tell, but presently it is doing a great job driving one 8" kicker sub in a non ported enclosure with plenty of power to spare. Very clean sound.

Cons: As with any amp I've ever encountered, the power terminals are too small to accommodate proper terminal ends for the appropriate gauge wire.

Kenwood amp

Written By Curtis, Atoka, TN on Tuesday, October 11, 2011

Crutchfield Customer Review (What's this?)

...this amp rocks! I had two sub-woofers just hanging out in the attic collecting dust, and I noticed the Kenwood KAC 5204 when I'd purchased with the KDC- 248U....these two are a happily married couple now! For the price, you can't go wrong with it. I thought I would run into a road block when it came to "bridging" the two woofers however, the instructions provided, it was right the first time.

Curtis USN, ret

Kenwood KAC-5204

Written By MadJack, Amity PA on Thursday, October 06, 2011

Crutchfield Customer Review (What's this?)

Great Sound....logical, easy connections are user friendly...used it to power a subwoofer I salvaged from my totaled Jeep Cherokee. Basically plug & play.

A great buy!

Written By Pat S., Independence, WI on Tuesday, September 27, 2011

Crutchfield Customer Review (What's this?)

Ordered 2 of them, one to power the front door 3 way 5 1/4" Kenwoods and one to power 4 way 6x9 Kenwwods in the rear deck of my '98 Bonneville. My head unit is a Kenwood KDC-X595 and I have a powered 10 inch Bazooka Bass tube in the trunk. I don't own an Ipod so I loaded all of my music on a 8 gig thumb drive which the head unit plays like a dream. It took some tinkering around to get the system dialed in, but let me tell you this system is one of the best I've heard ANYWHERE! The bass is super clean and tight, when I crank it the images in the rear and side view mirrors get fuzzy and you can feel it right down to your bones, while being crystal clear. "La Villa Strangiato" by Rush cranked up to 30 will make you see the world in a new light. Guess whose car we have to take on all roadtrips, my friends think I'm a God. For the money you can't go wrong, order yours today.

Kenwood KAC-5204

Written By RJ, Milwaukee Wi on Friday, September 23, 2011

Crutchfield Customer Review (What's this?)

Excellent amp! Great price.

Open box review

Written By T C, Misawa Japan on Wednesday, September 21, 2011

I am sure this works great. I will be able to prove it when I change out the lackluster speakers I have it hooked to.

Kenwood amp

Written By TcTN, Chattanooga, TN on Friday, September 16, 2011

Crutchfield Customer Review (What's this?)

I purchased this amp to power a 8" JBL Sub in an enclosure that I built to fit under my passenger seat and it works great. Amp is located under the driver seat. It definately fill in the lows to the point that you feel it thru the seat.

Good Buy

Written By Carl, Chicago on Wednesday, September 07, 2011

Crutchfield Customer Review (What's this?)

Great little amp, TINY and can be hid away very nicely.

Solid amp for the $$

Written By TXSteve, central TX on Tuesday, September 06, 2011

Crutchfield Customer Review (What's this?)

Great amp for the money. I used the speaker inputs spliced from the rear speakers in my 08 Malibu and use the amp bridged powering a vintage 10" Oz Audio sub in a small sealed box. The bass output is perfect for the stock stereo, although not enough to impress/annoy the neighbors it sounds great inside the car.

Good Amp!!

Written By Droyster1, Memphis, TN on Thursday, August 11, 2011

Crutchfield Customer Review (What's this?)

I have this amp powering 4 6x8" door speakers. sounds great.

Kenwood kAC5204

Written By James, Honolulu, HI on Wednesday, August 10, 2011

Crutchfield Customer Review (What's this?)

Nice, clean signal amplifies my Rockford Fosgate R1682s. Compact, easy to install. Happy with high volume clean sound. This is a great amp for the price!

Great Amp

Written By Jeff, St. George, Utah on Monday, August 08, 2011

I installed this, paired with a kicker crossover, to replace the stock rear deck speakers in a 2001 Audi A4. Sounds great and plenty of power for the Alpine speakers I used.

Just what I was looking for!

Written By S10, Milwaukee, WI on Sunday, July 17, 2011

Awesome package sounds great, easy too install, and didn't break the bank! Wouldn't do it any other way.

great amp

Written By butch, lansing,il on Tuesday, June 28, 2011

Crutchfield Customer Review (What's this?)

could not find a better amp for my application, sounds great, and couldn't beat the price

Nice cheap amp.

Written By sirheck, Shawnee OK on Tuesday, June 21, 2011

Crutchfield Customer Review (What's this?)

Installed one of these in my moms truck and it powers her sony 12 inch sub pretty good. I ordered one to power my 8 inch kenwood excelon sub. A seemingly good, small and cheap two or single channel amp.

Kenwood KAC-5204

Written By Brian, San Antonio, TX on Monday, June 20, 2011

Crutchfield Customer Review (What's this?)

Drives my new 8" Kicker Sub with plenty of extra power.

Great Amp

Written By Cory, West Harrison Indiana on Friday, April 22, 2011

Great Amp
Gets the job done
Sturdy case.

Great amp!

Written By Joshua I, Tiffin, oh on Monday, April 11, 2011

Crutchfield Customer Review (What's this?)

This amp does exactly what they say it does. I found this amp on several sites
some for a few dollars less, but crutchfield is a well known reliable company. it
was delivered in 2 days, and had great instructions. Easy to hook up, and im
no expert. powering an old 10" Jensen sub on bridged mode and it sounds
great. Not breaking any records, but my slipknot sounds awsome, just a nice
tight thump in all music. very happy. dont hesitate this amp works flawlessly.

Excellent for speakers, little weak for a 12" sub

Written By Andrew, Lima, OH on Wednesday, April 06, 2011

Crutchfield Customer Review (What's this?)

First off, I purchased this amp with the intention of driving one 12" sub. On sale,
the price wasn't even comparable to anything out there, with exception to all of
the "1100 watt" no-name, peak-rated amps that litter online retailers. Teamed
with free shipping, you simply couldn't touch this deal for a CEA-2006
compliant amp rated @ 150 watts RMS. With limited settings on the amp,
setting the gain took mere minutes and with a flick of the low pass filter switch,
I was ready to go.

In my findings, this amp would be better utilized for 2 speakers @ 60 watts VS
a 12" sub @ 150 watts. My preamp outs from my deck were 4V and I had to set
the gain to just a little over 1V to even get an acceptable thump out of my sub.
That said, there was more distortion @ (IMO) reasonable volumes then I would
have expected for 150W. I also found that the amp was getting quite a bit hotter
then I felt comfortable with after only 15 to 20 minutes at medium volume. If
you're going to be pushing an 8" or 10" sub with a high sensitivity rating, you
might still be in good shape. However, I didn't find the 150 watts to be enough
to comfortably push a 12". And just for reference, I listen to almost all punk, rock
and alternative. Nothing bass-heavy like rap or R&B.

I opted to return the amp and upgrade to a Boston Acoustics GTA-400m. Cost
almost twice as much, but makes 2.5x the power and isn't even comparable for
pushing a 12". The Kenwood may be reliable, but was too underpowered for
me.

Kenwood KAC-5204

Written By Dan, IL on Monday, April 04, 2011

Crutchfield Customer Review (What's this?)

Good amp, but I think the crossover is a little too low for my setup. Also wish it
had a little more power. Overall real happy with this amp.

Kenwood KAC-5204

Written By Flyboy48, Ohio. on Sunday, April 03, 2011

Crutchfield Customer Review (What's this?)

This MIGHT be a first, but I installed the Kenwood KAC-5204 in my 2008 Harley
Davidson Ultra Classic, in the tour pac against the front wall. I changed out
the Factory speakers ( 4 ) and installed the Amp, which made a Huge difference.
The factory speakers was just ok, but needed some punch and some high end.
When I am traveling 65+ mph, sometimes in wind can be a real problem hearing
songs, but after installing my new Kenwood KAC-5204, that has all changed. I can
now hear all my songs playing through my XM, CD, or FM really Great !!!

Kenwood KAC-5204

Written By Tim, Parker, CO on Sunday, March 20, 2011

Crutchfield Customer Review (What's this?)

Great amp for the price. I bought this to run a single Pioneer 10" sub and it
sounds great in my quad cab Dodge pick-up. I wasn't looking for window
smashing bass, just some nice low end to complement the component door
speakers I installed. This amp did just the trick!

Kenwood KAC-5204

Written By curtind1, Raleigh, NC on Tuesday, March 15, 2011

Crutchfield Customer Review (What's this?)

It just works...

Wasn't looking for a high end amp. Just needed something to give the front
component speakers enough power to perform well.

Simple install, easy to adjust, and small enough to put almost anywhere.

Great Amp

Written By Bryan, VA on Tuesday, March 15, 2011

Crutchfield Customer Review (What's this?)

got this amp to power my kicker speakers and its is awesome nice and
compact so you have more choices of where to put it and plenty of power have
it on about half and more than enough power and better clarity

Awesome

Written By KevinE, Eugene, OR on Friday, March 11, 2011

Crutchfield Customer Review (What's this?)

Great little amp, I bought this to power a DA 10" sub in a sealed box and I am
more than pleased with it's performance. It produces tight well defined bass
with great clarity and no muddiness. I wasn't looking for something that was
capable of detaching my retina's I was looking for musical accuracy and this
little gem delivered.

Kenwood KAC-5204

Written By ChristopherP, Oklahoma City, OK on Sunday, February 20, 2011

Crutchfield Customer Review (What's this?)

My opinion, since I'm no way an audio expert is: that the product performed as function in
my '07 Regular Cab Ram, pushing only one sub, a Kicker Comp 10. I have no regreats
and would recommend to anyone doing the same. It suits me fine, as I want the bass,
but I don't wanna advertise it to the world. Its a healthy upgrade, since I was originally
running a Jensen 250W with a Kicker Stillwater Desgin 10", which was over 10 years old.

Kenwood KAC-5204

Written By Steve, San Antonio, Tx on Thursday, February 17, 2011

This amp will power door speakers, but do not buy this amp to power a subwoofer

Get everything you’ll need to enjoy your new Kenwood KAC-5204

You'll need an amp wiring kit to install your new amplifier, as wiring is not included.
Bring the music from your amp to your speakers.
Patch cables take the music from your stereo to the amplifier. Most amp wiring kits don't include them.
Helps protect your car's charging system and improves power handling. Required power and ground wires not included with cap.
The right tools will make the installation easier.
Have your new amplifier put in by a qualified professional in your area.
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Rockford Fosgate RFK10

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EFX PA10BX Wiring Kit

EFX PA10BX Wiring Kit

10-gauge amplifier wiring kit — includes 2-channel patch cable

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T-Spec 12-gauge Speaker Wire

T-Spec 12-gauge Speaker Wire

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T-Spec 16-gauge Speaker Wire

T-Spec 16-gauge Speaker Wire

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Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

Priced per foot (16 Gauge)

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T-Spec 2-Channel RCA Patch Cables

T-Spec 2-Channel RCA Patch Cables

Available in 7 different lengths (20-foot)

Item #: 120RCA202

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EFX 17-foot RCA Patch Cable

EFX 17-foot RCA Patch Cable

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EFX 2-Channel RCA Patch Cables

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EFX 2-Channel RCA Patch Cables

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Core Series Twisted RCA patch cables — available in 5 different lengths (3-foot)

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EFX 2-Channel RCA Patch Cables

EFX 2-Channel RCA Patch Cables

Elite Series Braided Multi-Core RCA patch cables — available in 5 different lengths (12-foot)

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T-Spec Capacitor

T-Spec Capacitor

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S&G Tool Aid 87650

S&G Tool Aid 87650

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Skewdriver Pro SPK4042

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Install Bay 3320

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