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Kenwood KAC-M1814 4-Channel Compact Bridgeable Marine/Motorsports 400W Max Power Digital Amplifier

4.4 4.4 out of 5 stars 150 ratings
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Style: KAC-M1814
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Purchase options and add-ons

Item dimensions L x W x H 8.5 x 3 x 7 inches
Voltage 14.4 Volts
Manufacturer Kenwood
Mounting Type Boat Mount
Brand Kenwood

About this item

  • Digital Amplifier Technology
  • Speaker Level Input w/ Signal Sensing Turn-on
  • 2 Ohms Load Capability. High Pass Filter : 50Hz-200Hz, -12dB/oct (A/B)
  • Power MOS-FET Switching Power Supply
  • 1m (3.3ft) RCA Cable

Frequently bought together

This item: Kenwood KAC-M1814 4-Channel Compact Bridgeable Marine/Motorsports 400W Max Power Digital Amplifier
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Product details

  • Product Dimensions ‏ : ‎ 8.5 x 3 x 7 inches; 1.5 Pounds
  • Item model number ‏ : ‎ KACM1814
  • Date First Available ‏ : ‎ February 20, 2019
  • Manufacturer ‏ : ‎ Kenwood
  • ASIN ‏ : ‎ B097DGV7FG
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.4 4.4 out of 5 stars 150 ratings

Product Description

Digital Amplifier Technology Speaker Level Input w/ Signal Sensing Turn-on 2 Ohms Load Capability Power MOS-FET Switching Power Supply 1m (3.3ft) RCA Cable

Top Brand: Kenwood

Highly Rated
100K+ customers rate items from this brand highly
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Customer reviews

4.4 out of 5 stars
150 global ratings

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Customers say

Customers find the amplifier has a compact size that allows them to install it right underneath the stock amp. They appreciate its power, sound quality, and ease of installation. The instructions are clear and the product works great. Customers also mention that it's a great product, provides volume and clarity in their speakers, and is easy to set up.

AI-generated from the text of customer reviews

15 customers mention "Power"12 positive3 negative

Customers appreciate the amplifier's power. They find it has plenty of power and clarity at 4 ohms, making it a great amp in a compact package. It drives their speakers nicely with its true 45 watts RMS power and clear sound.

"...this product for anyone looking for a compact amp with a true 45 watts RMS with clean power." Read more

"Provides the power I need for 3 small speakers. I recommend." Read more

"Installed in an older Jeep JK. Powers my new speakers nicely. The small size makes it easier to install in unused dash cavities" Read more

"Could only get one channel to work . 2 front speakers worked but rear wouldn’t work" Read more

14 customers mention "Compact size"14 positive0 negative

Customers appreciate the compact size of the subwoofer. They say it fits well under their seats and handles low frequencies well.

"...I love it was pre wired and fit right behind the head unit. Puts the factory keep unit to shame with the Ground Zero speakers I added...." Read more

"...The compact size allowed me to install it right underneath the stock head unit. The wire harnesses that come with the amp are nice and long...." Read more

"I installed this amp in my 1997 Toyota T100, it fits perfectly in small spaces...." Read more

"...I highly recommend this product for anyone looking for a compact amp with a true 45 watts RMS with clean power." Read more

14 customers mention "Sound quality"14 positive0 negative

Customers are satisfied with the sound quality of the amplifier. They say it provides good volume and clarity for their speakers, and is easy to install.

"...I had to swap out for a smaller wire. The sound is great, with a little tweaking, I am running 4 ,6 inch speakers with tweeters, no sub...." Read more

"Great sound! Installed in a Jeep JKU with Kenwood Excelon head unit and Blauhpunkt sub. I love it was pre wired and fit right behind the head unit...." Read more

"...For me, the sound is enhanced perfectly after tuning the gain/sensitivity. One of my new favorites." Read more

"...Overall good product, my speakers sound pretty clean. If you're looking for huge base, then this is not the product for you...." Read more

8 customers mention "Ease of installation"8 positive0 negative

Customers find the product easy to install with clear instructions. They say it works well so far.

"I needed an amp that had a small footprint. The installation was easy, the wiring came in a pigtail...." Read more

"Really improved sound of aftermarket head unit, easy to install and inexpensive." Read more

"this amp was so easy to install works great sounds good I love it.is one of the best upgrades. I’ve done in a long time and not super expensive." Read more

"...Powers my new speakers nicely. The small size makes it easier to install in unused dash cavities" Read more

8 customers mention "Functionality"8 positive0 negative

Customers are satisfied with the product's functionality. They say remote power works without any issues and it does what they need it to do.

"Could only get one channel to work . 2 front speakers worked but rear wouldn’t work" Read more

"...2018 Honda Goldwing motorcycle to give the stock radio a boost, worked perfectly & now I can hear my music going down the road, and I have to turn..." Read more

"Worked perfectly. Has an additional wire that senses when the deck is on, then it turns on...." Read more

"Wonderful, did just what I needed it to do." Read more

7 customers mention "Quality"7 positive0 negative

Customers appreciate the quality of the product. They find it reliable, powerful, and weather-proof. The included accessories are also appreciated.

"...The wire harnesses that come with the amp are nice and long. For me, the sound is enhanced perfectly after tuning the gain/sensitivity...." Read more

"...Overall good product, my speakers sound pretty clean. If you're looking for huge base, then this is not the product for you...." Read more

"...Needed something compact, powerful and weather proof. This ticked every box at a very reasonable price...." Read more

"...Great size and quality material. Kenwood has made quality products for a long time" Read more

7 customers mention "Value for money"7 positive0 negative

Customers are satisfied with the value for money of the amplifier. They say it's a nice little budget amplifier.

"...Great amp for the money." Read more

"Really improved sound of aftermarket head unit, easy to install and inexpensive." Read more

"...I’ve done in a long time and not super expensive." Read more

"...This ticked every box at a very reasonable price...." Read more

7 customers mention "Wiring"7 positive0 negative

Customers appreciate the wiring included in the product. They say it comes with RCA cables, wiring harness, and even some zip ties. The installation process is easy, and the wiring comes in a pigtail. There is an additional wire that senses when the deck is on.

"...The installation was easy, the wiring came in a pigtail. The only issue I have is you cant use a 10 gauge hot wire, or ground...." Read more

"...I love it was pre wired and fit right behind the head unit. Puts the factory keep unit to shame with the Ground Zero speakers I added...." Read more

"...Comes with all the wiring, no need to buy additional wires or RCA cables, unless you're trying to install it 10ft away from the head unit...." Read more

"...Everything you need is included, RCA cables, wiring harness, even some zip ties...." Read more

Good Product
4 out of 5 stars
Good Product
I installed this amp in my 1997 Toyota T100, it fits perfectly in small spaces. Comes with all the wiring, no need to buy additional wires or RCA cables, unless you're trying to install it 10ft away from the head unit. Overall good product, my speakers sound pretty clean. If you're looking for huge base, then this is not the product for you. This one is perfect to enhance the sound coming from the speakers on your car's door.
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Top reviews from the United States

  • Reviewed in the United States on August 23, 2024
    Style: KAC-M1814Verified Purchase
    I needed an amp that had a small footprint. The installation was easy, the wiring came in a pigtail. The only issue I have is you cant use a 10 gauge hot wire, or ground. I had to swap out for a smaller wire. The sound is great, with a little tweaking, I am running 4 ,6 inch speakers with tweeters, no sub. Great amp for the money.
    2 people found this helpful
    Report
  • Reviewed in the United States on January 25, 2025
    Style: KAC-M1814Verified Purchase
    Great sound! Installed in a Jeep JKU with Kenwood Excelon head unit and Blauhpunkt sub. I love it was pre wired and fit right behind the head unit. Puts the factory keep unit to shame with the Ground Zero speakers I added. 400 watts never sounded so good! Definitely a winner!
  • Reviewed in the United States on September 30, 2023
    Style: KAC-M1814Verified Purchase
    Purchased this to amplify the standard door and tweeters in my 2022 Tacoma. The compact size allowed me to install it right underneath the stock head unit. The wire harnesses that come with the amp are nice and long. For me, the sound is enhanced perfectly after tuning the gain/sensitivity. One of my new favorites.
    6 people found this helpful
    Report
  • Reviewed in the United States on January 23, 2025
    Style: KAC-M1814Verified Purchase
    I installed this amp in my 1997 Toyota T100, it fits perfectly in small spaces. Comes with all the wiring, no need to buy additional wires or RCA cables, unless you're trying to install it 10ft away from the head unit. Overall good product, my speakers sound pretty clean. If you're looking for huge base, then this is not the product for you. This one is perfect to enhance the sound coming from the speakers on your car's door.
    Customer image
    RAC
    4.0 out of 5 stars
    Good Product

    Reviewed in the United States on January 23, 2025
    I installed this amp in my 1997 Toyota T100, it fits perfectly in small spaces. Comes with all the wiring, no need to buy additional wires or RCA cables, unless you're trying to install it 10ft away from the head unit. Overall good product, my speakers sound pretty clean. If you're looking for huge base, then this is not the product for you. This one is perfect to enhance the sound coming from the speakers on your car's door.
    Images in this review
    Customer imageCustomer image
  • Reviewed in the United States on November 17, 2024
    Style: KAC-M1814Verified Purchase
    Really improved sound of aftermarket head unit, easy to install and inexpensive.
  • Reviewed in the United States on February 14, 2025
    Style: KAC-M1814Verified Purchase
    Could only get one channel to work . 2 front speakers worked but rear wouldn’t work
  • Reviewed in the United States on January 8, 2024
    Style: KAC-M1814Verified Purchase
    Upon tuning the gain on the amp. The amp was suppose to get a clean sound at 13.4 volts, but instead it was even getting a clean sound at 14.2 volts. I was impressed and happy with the way my highs and mid sounded. I highly recommend this product for anyone looking for a compact amp with a true 45 watts RMS with clean power.
    2 people found this helpful
    Report
  • Reviewed in the United States on June 2, 2024
    Style: KAC-M1814Verified Purchase
    I've had 200+ watt Pioneers installed for about a year with a Kenwood head unit, sometimes when playing content from my phone I really had to crank the volume up to hear it well enough. Now with this amp connected, I barely need to go above 25% and it has fantastic audio quality. I've added the Kenwood compact sub to my setup so the Pioneers handle the mids and highs (and some low Hz), the compact sub handles the lows - all setup using the crossover in the head unit.

    You really have to tune your setup if you expect this to sound good - go through your head unit settings, set the speaker size, distance, etc... Don't leave everything to default. I set the line sensitivity at about .3 (which is about 65-75% turning of the dial). HPF off so I can change settings on the fly at the head unit.

    Oh and the size - this thing is so compact, I was able to tuck it under the dash behind the 'ol glovebox.

    Everything you need is included, RCA cables, wiring harness, even some zip ties.

    Like I said, when you tune it against the settings in your head unit, the audio quality is fantastic.
    Customer image
    Ian
    5.0 out of 5 stars
    Big sound, small size!

    Reviewed in the United States on June 2, 2024
    I've had 200+ watt Pioneers installed for about a year with a Kenwood head unit, sometimes when playing content from my phone I really had to crank the volume up to hear it well enough. Now with this amp connected, I barely need to go above 25% and it has fantastic audio quality. I've added the Kenwood compact sub to my setup so the Pioneers handle the mids and highs (and some low Hz), the compact sub handles the lows - all setup using the crossover in the head unit.

    You really have to tune your setup if you expect this to sound good - go through your head unit settings, set the speaker size, distance, etc... Don't leave everything to default. I set the line sensitivity at about .3 (which is about 65-75% turning of the dial). HPF off so I can change settings on the fly at the head unit.

    Oh and the size - this thing is so compact, I was able to tuck it under the dash behind the 'ol glovebox.

    Everything you need is included, RCA cables, wiring harness, even some zip ties.

    Like I said, when you tune it against the settings in your head unit, the audio quality is fantastic.
    Images in this review
    Customer image
    4 people found this helpful
    Report

Top reviews from other countries

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  • Randy
    5.0 out of 5 stars Small but mighty
    Reviewed in Canada on February 11, 2025
    Style: KAC-M1814Verified Purchase
    I've ordered several of these for a stereo kit that I build for an obscure vehicle, and I have been impressed time after time with these units. The 4 channel setup is perfect for powering any speaker set you want to hook it to, full range of gains on volume control and bass, and the price is just right.
  • Alejandro Javier Pina García
    5.0 out of 5 stars Buena potencia y sonido.
    Reviewed in Spain on July 9, 2024
    Style: KAC-M1814Verified Purchase
    Muy bien sonido y una potencia aceptable. El amplificador tiene un tamaño pequeño adaptable a cualquier sitio. Lo único que destacaría en su contra es que los cables de conexión se quedan cortos. En mi caso me los tuvieron que sustituir por otros más largos, pero en general estoy satisfecho. Buen sonido Kenwood y calidad.
  • Paul
    5.0 out of 5 stars Cute little amp
    Reviewed in Canada on October 29, 2024
    Style: KAC-M1814Verified Purchase
    Used this on my Seadoo sportster, it's a great little amp and can cleanly drive 4 speakers well above the ambient noise level at 50mph.
  • john t.
    5.0 out of 5 stars GOOD
    Reviewed in Canada on September 27, 2024
    Style: KAC-M1814Verified Purchase
    GOOD SOUND