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Kenwood 2156568 KAC-M1804 Compact 4-Channel Amplifier

4.4 4.4 out of 5 stars 464 ratings

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Item Dimensions LxWxH 5.51 x 3.54 x 1.34 inches
Voltage 5 Volts
Manufacturer KENWOOD
Mounting Type Board Mount
Brand Kenwood

About this item

  • Kac-m1804 - Kenwood 4-channel 400w class d compact digital car amplifier
  • Rms power rating: 4 ohms: 45 watts x 4 Chan, max power output: 400 watts
  • Conformal coated circuit board suitable for marine applications
  • Extruded aluminum heat sink design
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$139.99
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Ships from and sold by Audio Watt Store.
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$99.99 ($50.00/Item)
Get it as soon as Sunday, Mar 31
Only 4 left in stock - order soon.
Sold by Audio Dreams and ships from Amazon Fulfillment.
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Kenwood 2156568 KAC-M1804 Compact 4-Channel Amplifier
Kenwood 2156568 KAC-M1804 Compact 4-Channel Amplifier
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Price$139.99$139.59$118.95$249.99$199.00$189.99
Delivery
Get it Apr 1 - 4
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Sound quality
4.3
4.5
4.2
Value for money
4.2
4.6
4.1
Sold By
Audio Watt Store
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Alphasonik
NVX®, Victor Fitness®, Belva® Official
webtron-x
KAV Enterprises LLC
number of channels
4
4
4
4
4
5
voltage
5 volts
6 volts
14.4 volts
5 volts
16 volts
6 volts
mounting type
Board Mount
Surface Mount
Car Mount
Surface Mount
Surface Mount

Looking for specific info?

Product Description

Kenwood 4ch amplifier 400w max. Kac-m1804 - Kenwood 4-channel 400w class d compact digital car amplifier. RMS power rating: 4 ohms: 45 watts x 4 chan. Max power output: 400 watts. Conformal coated circuit board suitable for marine applications. Extruded aluminum heat sink design. Specifications Signal to Noise Ratio - 90dB (Reference: Rated Power into 4Ohms at 14.4V) Frequency Response - 20Hz-20kHz (+0dB, -1dB) Input Impedance - 10k ohm Speaker Impedance - 4Ω

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Kenwood 2156568 KAC-M1804 Compact 4-Channel Amplifier


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Customer reviews

4.4 out of 5 stars
4.4 out of 5
464 global ratings

Customers say

Customers like the power, sound quality, size and ease of installation of the electronic component amplifier. For example, they mention it works great, filters the sound perfectly, fills out the sound system nicely and that it takes up minimal space. That said, some complain about the adjustability and quality.

AI-generated from the text of customer reviews

107 customers mention98 positive9 negative

Customers like the power of the electronic component amplifier. For example, they mention it works well, has good power, and is effective. Some say that it powers their speakers well and is a niche piece that works well. Overall, most are satisfied with the performance and power of this product.

"...4-26-2018 update. So far the amp as been rock solid. No problems at all." Read more

"...You can mount this amp anywhere with no problem, power is ok but I was expecting some more power but considering the size of the amplifier I guess..." Read more

"...Regardless, worked perfectly and sounded awesome. Not a fan of speaker level inputs...." Read more

"Amplifier works very well. It does lack a speaker relay to prevent the thump sound when you turn it on/off which is annoying...." Read more

92 customers mention81 positive11 negative

Customers like the sound quality of the electronic component amplifier. For example, they say it provides plenty of power and filters the sound perfectly. Some say that it fills out their sound system nicely and that there is no humming through the speakers.

"...but my daughter is now happy and it seems to have filled out her sound system nicely. My only concern is the power wire...." Read more

"...little bit better with the amp, if you are looking for something not really loud, small and compact this is the way to go, if you are looking for..." Read more

"...sub-woofers and wake tower speakers, I was just looking for decent quality sound and something noticeably better than stock...." Read more

"...Regardless, worked perfectly and sounded awesome. Not a fan of speaker level inputs...." Read more

67 customers mention67 positive0 negative

Customers are satisfied with the size of the electronic component amplifier. They mention that it fits just about anywhere, takes up minimal space, and sounds good for its size. Some say that it's easy to install and can be hidden in the dash. Overall, most are happy with the product's size and rated power.

"...the amp, if you are looking for something not really loud, small and compact this is the way to go, if you are looking for power you better look for..." Read more

"...This is a compact, no-frills amp that will roughly double the volume output of a standard head unit at a very affordable price...." Read more

"This amp is great for the price. It is compact, durable, and gives a appreciable boost to the sound system...." Read more

"...And so small you can place it anywhere and it want be in the way. I should have video the hold thing it was so fast to install...." Read more

57 customers mention57 positive0 negative

Customers find the installation process of the electronic component amplifier to be easy. They mention that it's small enough to find a place for it without taking the radio. The installation process is fast and smooth, and the compact size makes it easy to mount. The small package makes it an easy upgrade to stock head unit.

"...So I decided to try this little guy. So the install went smooth I was able to install it behind the radio on the right side kind of behind the..." Read more

"...and only explain things in the most rudimentary of ways, but it's easy enough, and all of the wires are color-coded as you would expect for modern..." Read more

"...I should have video the hold thing it was so fast to install. My 2016 Harley-Davidson Road Glide just smiles from aproval HAHAHAHAHA!..." Read more

"...More loudness, clarity, and bass. Very nice amp for an easy upgrade to a boat's speakers. Excellent price and easy to hook up. Highly recommend." Read more

33 customers mention33 positive0 negative

Customers are satisfied with the value of the electronic component amplifier. They mention that it is a good budget amp that works great and produces good sound quality. Some say that it makes their system sound like a million dollars.

"...This amp is intended to be an affordable, good quality upgrade over stock radios and in that capacity it does a fantastic job...." Read more

"This amp is great for the price. It is compact, durable, and gives a appreciable boost to the sound system...." Read more

"...Very nice amp for an easy upgrade to a boat's speakers. Excellent price and easy to hook up. Highly recommend." Read more

"...Easy install... definitely good value for the money. If you want something that screams insanely look elsewhere..." Read more

12 customers mention12 positive0 negative

Customers like the punch of the electronic component amplifier. They say it adds a lot of punch to their stock GM stereo, has a nice kick and power, and works extremely well given the price point. It is compact, durable, and gives an appreciable boost to the sound system. It really wakes up the Kickers it is connected to, and is a perfect boost to any system.

"This amp is great for the price. It is compact, durable, and gives a appreciable boost to the sound system...." Read more

"...Aside from the lack of tunability, the amp is great. Has nice kick and power, and works extremely well given the price point. Very satisfied." Read more

"...Really wakes up the Kickers it is connected to." Read more

"Added a lot of punch to my stock GM stereo...." Read more

16 customers mention9 positive7 negative

Customers are mixed about the quality of the electronic component amplifier. Some mention it's a good quality upgrade over stock radios, reliable, durable, and gives an appreciable boost to the sound, while others say that it was defective and blew up as soon as they turned it on.

"...This amp is intended to be an affordable, good quality upgrade over stock radios and in that capacity it does a fantastic job...." Read more

"...He seems to think the item is defective." Read more

"This amp is great for the price. It is compact, durable, and gives a appreciable boost to the sound system...." Read more

"...Circuit board inside just fried up and started to smell like something is burning blowing the 15 amp fuse every time...." Read more

15 customers mention0 positive15 negative

Customers are dissatisfied with the adjustability of the electronic component amplifier. They mention that it does not have any type of adjustment or gain controls, there's no adjustment on frequency, and there is no internal EQ adjustments. They also say that the volume cannot be adjusted and the line level volume adjustment is very sensitive. Some customers also mention that the amp lacks tunability and would like controls for input sensitivity.

"...(Note that this amp does not have any controls of its own, its just an amp...." Read more

"...Regardless, worked perfectly and sounded awesome. Not a fan of speaker level inputs...." Read more

"just no. installed on Harley with aquatic a/v hu. lacks adjustability, lots of distortion with bass notes. hpf would be nice...." Read more

"...There are no adjustments available so the amp runs full bore while on but for what I'm using it for it suites my needs." Read more

Don't really know if it's worth it
3 Stars
Don't really know if it's worth it
I purchased the 400 watt kenwood mini amp back in February and have had nothing but problems with it cutting out sound to the speakers.Took it to a professional an apparently the connection coming from the amp to the speakers is loose. My guy says I should see if it's under warranty or if it's returnable? He seems to think the item is defective.
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Reviewed in the United States on March 28, 2018
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Top reviews from other countries

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Carole M.
5.0 out of 5 stars My Husband Loves It
Reviewed in Canada on June 26, 2019
eugen
1.0 out of 5 stars The amplifier arriving time. I installed. I realise ...
Reviewed in the United Kingdom on April 29, 2018
Amazon Customer
5.0 out of 5 stars As advertised thank you!
Reviewed in Canada on April 17, 2019
One person found this helpful
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Yanick Proulx
3.0 out of 5 stars Three Stars
Reviewed in Canada on August 24, 2018