This is the ultimate buyer’s guide to the Best 4 Channel Marine Amplifiers. We’ve listed our top picks, including the Most popular, Top-rated, and Bestselling Products.
After hours of scanning and analyzing the market, using too many factors, we have found the Best 4 Channel Marine Amplifiers of 2022. Check out our ranking below!


Top 20 Best 4 Channel Marine Amplifiers of 2022



Best 4 Channel Marine Amplifiers 2022 (Reviews)


Pyle Hydra Marine Amplifier - Upgraded Elite Series 400 Watt 4 Channel Audio Amplifier - Waterproof, Dual MOSFET Power Supply, GAIN Level Controls, RCA Stereo Input & LED Indicator (PLMRA400)

$44.76  in stock
37 new from $43.71
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • PREMIUM 4 CHANNEL AMPLIFIER: Pyle’s PLMRA400 is engineered as a 4 Channel marine amplifier that allows high quality stereo reproduction from source. This will power up your speaker and be universally compatible with a variety of head units
  • RCA STEREO INPUT: For an easier use of this hydra marine amplifier, it comes with premium RCA inputs. If your marine receiver lacks RCA output jacks, you can connect speaker output leads to the high-level terminal inputs
  • SHORT PROTECTION: Built with a heavy duty Aluminum Alloy heatsink, thermal overload speaker short protection and LED light indicator. These are to protect the amp and your vehicle's electrical system from short circuit conditions
  • POWERFUL 400 WATT: This amplifier is powerful with its 100 WATT x 4 max or 400 WATT and dual MOFSET power supply. Comes with dual adjustable input GAIN level controls between 1-300mV and 4 or 8 Ohm speaker impedance
  • MARINE GRADE: With its Marine rating of IP-01, it is waterproof ready. It’s constructed with gold-plated speaker output terminal connectors as well to combat corrosion with long term use

Rockville DBM45 4-Channel 2000w Peak/500w Dyno-Certified RMS Marine/Boat Amplifier

$159.95  in stock
2 new from $159.95
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • Rockville DBM45 4-Channel 2000w Peak/500w Dyno-Certified RMS Marine/Boat Amplifier
  • Rockville DBM45 4-Channel 2000w Peak/500w Dyno-Certified RMS Marine/Boat Amplifier. Dyno Certified RMS Power Ratings: (Certified Dyno Test / Less than 1 % THD) (Use these ratings when comparing with top brands such as Kicker, Rockford Fosgate, etc).
  • 2 Ohm: 125 Watts x 4 Channel. 4 Ohm: 85 Watts x 4 Channel. 4 Ohm Bridged: 250 Watts x 2 Channel. Peak: (Use these ratings when comparing with the top budget brands such as Boss, Power Acoustik, etc). 2 Ohm: 500 Watts x 4 Channel. 4 Ohm: 340 Watts x 4 Channel.
  • 4 Ohm Bridged: 1000 Watts x 2 Channel. Painted Conformal Coating PCB Board (Uses 2577 Waterproof Glue). Waterproof silicone covers for end panels. Rustproof Aluminum heat sink with white painted finish. Stainless steel end panels are rustproof.
  • All screws and mounting hardware are stainless steel and rustproof. Bottom panel is aluminum and rustproof. All channels on the amp have crossovers so they can each be used for subs or full range speakers or tweeters or midrange speakers. All channels on the amplifier are bridgeable. Fully Adjustable 12dB / Octave Crossover with Differential Circuitry

2.1 Bluetooth Marine Amplifier Receiver - Waterproof 4 Channel Wireless Bridgeable Audio Amp for Stereo Speaker with 400 Watt Power Dual MOSFET Supply, GAIN Level and LED Indicator - Pyle PLMRA410BT

$45.89  in stock
12 new from $45.89
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • 4 CHANNEL BRIDGEABLE AMPLIFIER: Pyle’s PLMRA410BT is engineered as a 4 Channel bridgeable marine amplifier that powers up your speaker and is universally compatible. It has a bridge mode selection switch and high or low electronic crossover network
  • 2.1 BLUETOOTH CONNECTIVITY: Built with 2.1 Bluetooth connectivity that has a wireless range of 25+ feet. Compatible with all Bluetooth devices like iPhone, Android, iPad and tablets. It even has a smart auto connect that remembers device pairing info
  • WATERPROOF & WEATHERPROOF: The audio amplifier is waterproof with its marine grade rating of IP 01. It’s constructed with silver plated stereo speaker output terminal connectors to combat weather corrosion with long term us
  • SHORT PROTECTION: Built with a heavy duty Aluminum Alloy heatsink, thermal overload speaker short protection and LED light indicator. These are to protect the amp and your vehicle's electrical system from short circuit conditions
  • POWERFUL 400 WATT: This amplifier receiver is powerful with its 400 WATT MAX and dual MOSFET power supply. Comes with dual adjustable input GAIN level controls between 4 to 8 Ohm speaker impedance

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

$168.00  in stock
8 new from $168.00
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • 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

Skar Audio RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier

 in stock
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • 500-Watt MOSFET 4-Channel Class A/B Power Marine Amplifier
  • RMS Power at 2 Ohms: 125 Watts x 4 Channels
  • RMS Power at 4 Ohms: 75 Watts x 4 Channel
  • Fully Marini zed with Waterproof Coating on Circuit Board & Rust Proof Painting on Mechanical Case
  • User Adjustable Controls: Gain, Variable LPF, HPF, Bass EQ Switch (0, +6, +12 dB)

Pyle 4-Channel Marine Amplifier Receiver - Waterproof and Weatherproof Audio Subwoofer for Boat Stereo Speaker & Other Watercraft - 1200 Watt Power, Wired RCA, AUX and MP3 Audio Input Cable - PLMTR4A

$78.99
$56.99
 in stock
3 new from $56.99
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • WATERPROOF & WEATHERPROOF: The audio amplifier is waterproof with its marine grade rating of IP-65. It has a rugged construction and integrated power wiring harness to combat weather conditions
  • POWERFUL 1200 WATT: This amplifier receiver is powerful with its 1200 watt max. It has an anti-thump turn on and soft turn on or off to save energy. Comes with 2 to 4 Ohm speaker impedance and adjustable volume control
  • 4 CHANNEL AMPLIFIER: Pyle’s PLMTR4A is engineered as a 4-channel marine amplifier that powers up any boat stereo speaker and is universally compatible too. It has wired RCA, AUX and MP3 audio input
  • SHORT PROTECTION: Built with a heavy duty heatsink, thermal overload speaker short protection to protect the amp and your vehicle's electrical system from short circuit conditions. It has 12V DC and 10A fuse
  • COMPACT AND LIGHTWEIGHT: The subwoofer amp is compact with an exact dimension of 6.2’’ x 3.5’’ x 2.1’’ and lightweight with only 2.29 lbs. The T.H.D is 0.1%, S/N Ratio is > 95 dB, channel separation is > 65 dB and the frequency response is 10 - 40kHz

Pyle Hydra Marine Amplifier - Upgraded Elite Series 800 Watt 4 Channel Micro Amplifier - Waterproof, GAIN Level Controls, RCA Stereo Input, 3.5mm Jack, MP3 & Volume Control (PLMRMP3B)

$52.99
$50.39
 in stock
16 new from $46.99
6 used from $42.25
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • PREMIUM 4 CHANNEL AMPLIFIER: Engineered as a 4 Channel marine amplifier that allows high quality stereo reproduction from source. This will power up your speaker and universally compatible with a variety of head units like MP3 and smartphone.
  • RCA STEREO INPUT: For an easier use of this hydra marine amplifier, it comes with premium RCA inputs. This also includes a 3.5mm-to-RCA adaptor so you can connect your device and a remote for volume control.
  • SHORT PROTECTION: Has a built-in power protection circuitry and soft turn on/off. These are to protect the amp and your vehicle's electrical system from short circuit conditions.
  • POWERFUL 800 WATT: This amplifier is powerful with its 800 WATT maximum power supply. Comes with adjustable input GAIN level controls of 2 to 4 Ohm speak. It’s also waterproof marine grade.
  • Included Components: 1 Pyle Branded Product

Pyle Hydra Marine Amplifier - Upgraded Elite Series 1000 Watt 4 Channel Bridgeable Amp Tri-Mode Configurable, Waterproof, MOSFET Power Supply, GAIN Level Controls and RCA Stereo Input(PLMRA420)

$88.09
$80.89
 in stock
20 new from $74.99
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • 4 CHANNEL BRIDGEABLE AMPLIFIER: Pyle’s PLMRA420 is engineered as a 4 Channel bridgeable marine amplifier that powers up your speaker and is universally compatible. It also has high and low electronic crossover network or pass filters
  • PREMIUM RCA INPUT: For an easier use of this hydra marine amplifier, it comes with premium RCA inputs. If your marine receiver lacks RCA output jacks, you can connect speaker output leads to the high level inputs
  • SHORT PROTECTION: Built with a heavy duty Aluminum Alloy heatsink, thermal overload speaker short protection and LED light indicator. These are to protect the amp and your vehicle's electrical system from short circuit conditions
  • POWERFUL 1000 WATT: This amplifier is powerful with its 1000 WATT maximum and dual MOFSET power supply. Comes with dual adjustable input GAIN level controls of 10k Ohm (Low) and 100 Ohm (High) speaker impedance
  • MARINE GRADE: With its Marine rating of IP-01, it is waterproof ready. It’s constructed with gold plated speaker output terminal connectors as well to combat corrosion with long term use

Soundstream SM4.10000D 1000W Max 4 Channel Stealth Series Marine Grade Class D Amplifier - SM4.1000D

$128.28  in stock
9 new from $119.90
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • 90 watts RMS x 4 at 4 ohms (125 watts RMS x 4 at 2 ohms)
  • 250 watts x 2 bridged at 4 ohms
  • Mosfet power supply. Quick Disconnect RCA/High Level Wire Harness
  • Preamp and speaker-level inputs
  • Variable high- and low-pass filters (35-250 Hz, 12 dB/octave)

Kicker PXA300.4 Compact 300W 4 Channel Amp Amplifier Powersport UTV ATV Marine (Renewed)

$179.95  in stock
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • Factory Refurbished by Kicker - 1 Year Warranty

BLAUPUNKT 1600W 4-Channel, Full-Range Amplifier AMP1604

$66.88  in stock
30 new from $62.24
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • Blaupunkt AMP1604 4-Channel, Full-Range Amplifier Max. Output Power: 1600W

Pyle 4 Channel Marine Amplifier - Compact Power 400 Watt RMS 4 OHM Full Range Stereo & Waterproof - Wireless Bluetooth Receiver Audio Speaker with LCD Digital Screen - PFMRA440BB

$74.99  in stock
19 new from $74.99
1 used from $63.02
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • ADJUSTABLE TREBLE BASS EQ: Bass signal output can operate independently and the bass amplitude range is fine-tuning. The subwoofer output is controlled separately. May appropriate to adjust the style effect according to your needs for sound effect
  • WIRELESS BLUETOOTH CONNECT: Built in 2.1 version and that ranges up to 50’ + feet and has thermal power protection circuitry and variety spring loaded speaker terminal. Also,installed with HD sound and LED digital screen that your stereo is working
  • 400 WATT POWER: 2 channel amplifier with 400 watt RMS at 4 ohm impedance and frequency range between 10-40 kHz for unrivaled sound superiority. Fully marine grade rating at IP-41, a class D circuit and RCA audio connector
  • AUXILIARY INPUT: Save MP3 audio files to a memory card and play back through the USB or SD card reader pair of RCA jacks on the rear of the amplifier, to external smartphone, computer, MP3, laptop or tablet. Connect and stream from external devices
  • HIGH-FIDELITY STEREO DESIGN: It has perfect audio outputs, plus a separate subwoofer output, volume, treble and bass shock, which can be accessed in the side panel button control center. It is made durable marine grade construction and waterproof

2.1 Bluetooth Marine Amplifier Receiver - Waterproof 4 Channel Wireless Bridgeable Audio Amp for Stereo Speaker with 1000 Watt Power Dual MOSFET Supply, GAIN Level and LED Indicator - Pyle PLMRA430BT

$98.29
$80.39
 in stock
4 new from $80.39
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • 4 CHANNEL BRIDGEABLE AMPLIFIER: Pyle’s PLMRA430BT is engineered as a 4 Channel bridgeable marine amplifier that powers up your speaker and is universally compatible. It has a bridge mode selection switch and high or low electronic crossover network
  • 2.1 BLUETOOTH CONNECTIVITY: Built with 2.1 Bluetooth connectivity that has a wireless range of 25+ feet. Compatible with all Bluetooth devices like iPhone, Android, iPad and tablets. It even has a smart auto connect that remembers device pairing info
  • WATERPROOF & WEATHERPROOF: The audio amplifier is waterproof with its marine grade rating of IP-01. It’s constructed with silver-plated stereo speaker output terminal connectors to combat weather corrosion with long term us
  • SHORT PROTECTION: Built with a heavy duty Aluminum Alloy heatsink, thermal overload speaker short protection and LED light indicator. These are to protect the amp and your vehicle's electrical system from short circuit conditions
  • POWERFUL 1000 WATT: This amplifier receiver is powerful with its 1000 WATT MAX and dual MOSFET power supply. Comes with dual adjustable input GAIN level controls between 4 to 8 Ohm speaker impedance

NVX VADM4 400W RMS Full Range Class D 4-Channel Car/Marine/Powersports Compact Micro Amplifier - Marine Certified

$179.99  in stock
2 new from $179.99
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • PEAK POWER: 800 Watts
  • RMS POWER: 【4 ohms: 75W x 4 chan.】【2 ohms: 100W x 4 chan.】【4 ohms bridged: 200W x 2 chan.】
  • COMPACT: Cutting edge Micro Class D technology allows amplifier to be extremely compact. Dimensions: 7.2"L x 3.4"W x 1.45"H
  • MARINE CERTIFIED: Our VAD line includes a conformally coated, marine grade circuit board. This allows this amplifier to be installed in nearly any application.
  • FEATURES: LED indicator lighting | 3-way protection circuitry | Balanced Differential Inputs | Speaker-level (high-level) inputs | Selectable crossover modes

Pyle Auto 4-Channel Marine Amplifier - 200 Watt RMS 4 OHM Full Range Stereo with Wireless Bluetooth & Powerful Prime Speaker - High Crossover HD Music Audio Multi Channel System PLMRMB4CW White

$72.99
$57.89
 in stock
6 new from $57.89
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • WIRELESS BLUETOOTH CONNECT: This bluetooth is built in with 2.0 version and with the wide range that could reach up to 30’ + feet even on underwater. It has power protection circuitry and electronic high crossover network that bridge variety channel
  • COMPACT AND POWERFUL: This multi channel amp is prime class and slim pack with 4x100 Watts RMS @ 4Ohm, 4x 200Watt MAX @ 4Ohm and 4x300 Watt RMS @ 2 Ohm and has wire auxiliary RCA audio connection and integrated cable for easy installation
  • WORKS TO ALL DEVICES: This powerful multi 4 channel marine and car amplifier can immediately connect to all of your favorite gadgets such phone, ipod, iphone, android, tablet and can be used for boat or aquatic vehicle application or in your home
  • WEATHERPROOF WATER RESISTANT DESIGN: This extremely efficient, 4channel, 200w outdoor amp is fully marinized with a waterproof and rust resistant coating on the PCB and mechanical casing. Truly, lives the one and only legacy of an auto amplifier
  • INCOMPARABLE SPEAKER: This latest 200watt 4 channel subwoofer amplifier takes your small vehicle’s no filter music audio system to the next level. It is install with full HD sound, bass control and LED lights indicator that your stereo is working

Rockville Micro Marine/ATV Amplifier 1600w Max 4 Channel 4x100/CEA Rated (RXM-S20)

$119.95  in stock
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • Rockville RXM-S20 Proton Series 1600w Peak/400w Dyno-Certified RMS 4 Channel Micro Marine/ATV Amplifier with PA Microphone Included!.
  • PA Microphone with talkover - When you talk on the mic it will must the music and when you stop talking the music will come back on. Dyno Certified RMS Power Ratings: (Certified Dyno Test / Less than 1 % THD) (Use these ratings when comparing with top brands such as Kicker, Rockford Fosgate, etc). 300 Watts (4 x 75 Watts) at 4 ohms and 1% THD+N. 400 Watts (4 x 100 Watts) at 2 ohms < 1% THD.
  • 400 Watts (2 x 200 Watts) bridged @ 4 Ohms < 1% THD. Peak: (Use these ratings when comparing with the top budget brands such as Boss, Power Acoustik, etc). Marine amplifier with conformal coated PCB board. High-Speed MOSFET Power Supply. Studio-Grade Bipolar Output Stage Transistors. Double Sided Surface Mount (SMD) PCB Design . Selectable +6dB/+12dB Bass Equalizer @ 45hz.
  • Channel Separation: 50 dB. Current drawn @ MAX RMS output: 27A @ 4ohm, 40A @ 2ohm. Efficiency @ MAX RMS output: 70% @ 4ohm, 63% @ 2ohm. 2-Ohm Stable Stereo. 4-Ohm Mono Bridgeable. 3 Channel Mixed-Mono Capable. Input sensitivity: 200mV-6V. Mute and Delay Soft Start System. Full IC-Controlled Protection Circuitry. 2 CH / 4 CH Input Mode Switch. RCA Preamp Line Output. 8 Volt Preamp Circuitry.
  • Status Mode LED Indicator. 4 Gauge Lucite Encapsulated Power/Ground Terminals. 12 Gauge Lucite Encapsulated Speaker Terminals. THD+A: 0.01%. Frequency Response: 15Hz - 20KHz. Continuously Fully Adjustable 12dB / Octave Crossover with Differential Circuitry. Continuously Fully Adjustable High Pass Crossover: 50HZ - 250HZ. CH1 & CH2 High Pass 50Hz - 250Hz. CH3 & CH4 Low Pass 50Hz - 250Hz. CH3 & CH4 High Pass 50Hz - 250Hz.

Blaupunkt 1500W 4-Channel, Full-Range Amplifier

$69.81
$64.50
 in stock
10 new from $56.98
1 used from $65.35
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • 1500W Maximum Power Full-Range Amplifier
  • Optimized 150-watt RMS output and a max power output of 1500 watts, you can give your music a huge boost in power that will have you and your passengers partying while on the road
  • This slim amplifier fits perfectly into any trunk so you can easily connect it to your stereo system

Infinity Mobile Marine Grade / 4-Channel, 70w X 4 amplifier

$359.95
$197.00
 in stock
18 new from $197.00
1 used from $189.99
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • Infinity High-Performance Power Amplifier Quality
  • High- and low-level inputs
  • Selectable Output and Variable Adjustment Crossovers
  • Conformal-Coated PCB
  • Variable Crossovers

Infinity Marine M704A 4-Channel Amplifier

$159.96  in stock
5 new from $159.96
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

Part NumberM704A

Pyle Hydra Marine Amplifier - Upgraded Elite Series 240 Watt 4 Channel Audio Amplifier - Waterproof, 4-8 Ohm Impendance, GAIN Level Controls, RCA Stereo Input & LED Indicator (PLMRA120)

$32.99  in stock
20 new from $32.99
1 used from $27.46
Free shipping
Amazon.com
as of March 2, 2022 9:34 pm

Features

  • PREMIUM 4 CHANNEL AMPLIFIER: Pyle’s PLMRA120 is engineered as a 4 Channel marine amplifier that allows high quality stereo reproduction from source. This will power up your speaker and universally compatible with a variety of head units.
  • RCA STEREO INPUT: For an easier use of this hydra marine amplifier, it comes with premium RCA inputs. If your marine receiver lacks RCA output jacks, you can connect speaker output leads to the high-level terminal inputs.
  • SHORT PROTECTION: Built with a heavy duty Aluminum Alloy heatsink, thermal overload speaker short protection and LED light indicator. These are to protect the amp and your vehicle's electrical system from short circuit conditions.
  • POWERFUL 240 WATT: This amplifier is powerful with its IC Power 120 Watts x 2 Output power supply. Comes with dual adjustable input GAIN level controls between 4 or 8 Ohm speaker impedance.
  • MARINE GRADE: With its Marine rating of IP-01, it is waterproof ready. It’s constructed with gold-plated speaker output terminal connectors as well to combat corrosion with long term use.

Best 4 Channel Marine Amplifiers 2022 | Price Comparison

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Your Guide To Buying The Best 4 Channel Marine Amplifiers

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We understand this because we have already gone through the entire process of researching the best products.
So we have compiled a complete list of the “Best 4 Channel Marine Amplifiers” available on the market today.

We’ve also composed this buyer’s guide to help you make the right decision when selecting the “Best 4 Channel Marine Amplifiers“. It’ll help you:

  1. Read reviews of your chosen product, and what consumers are saying,
  2. Select the right brand of the Best 4 Channel Marine Amplifiers, and
  3. Compare prices and find the best value.
  4. Select the features that satisfy your needs.

A thorough and thoughtful examination is essential to ensure that you get the “Best 4 Channel Marine Amplifiers” possible.
We provide guidance on buying the Best 4 Channel Marine Amplifiers, and this information is complete and accurate.
We use both artificial intelligence and big data to analyze the information we collect, using a selection of algorithms that have allowed us to compile a list of the Best 4 Channel Marine Amplifiers currently available on the market.
This is the technology we use to compile our list based on a variety of factors, we always remember that keeping the Best 4 Channel Marine Amplifiers information up-to-date is the most important thing, so we are constantly updating our site.

5/5 - (436 votes)