If you are searching for the best marine 4 channel amp then you landed on the right page. Here we have compiled a list of the top marine 4 channel amp.
We have spent around 41 hours to find the right option for you and based on our research 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),BLACK is our top pick for you. This is one of the best products currently available in the market. However, if you don’t want to spend extra then we have another great option for you is 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 – PLMRMP4A. Below is a review of some of the best marine 4 channel amp, together with their specifications and functions. So without further waiting, Let’s dive right in.
Best marine 4 channel amp

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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),BLACK
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),BLACK
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
Kenwood KAC-M1814 4-Channel Compact Bridgeable Marine/Motorsports 400W Max Power Digital Amplifier
Kenwood KAC-M1814 4-Channel Compact Bridgeable Marine/Motorsports 400W Max Power Digital Amplifier
$119.95 out of stock
2 used from $99.95
Features
- 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
Kenwood KAC-M3004 4 Channel 600 Watt Amp Marine ATV Boat Amplifier + Wiring Kit
Kenwood KAC-M3004 4 Channel 600 Watt Amp Marine ATV Boat Amplifier + Wiring Kit
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 – PLMRMP4A
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 - PLMRMP4A
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 600 WATT: This amplifier receiver is powerful with its 600 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 PLMRMP4A 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 amp is compact with an exact dimension of 5.3’’ x 3.5’’ x 2.1’’ and lightweight with only 1.94 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)
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)
4 used from $47.72
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
Soundstream SM4.10000D 1000W Max 4 Channel Stealth Series Marine Grade Class D Amplifier – SM4.1000D
Soundstream SM4.10000D 1000W Max 4 Channel Stealth Series Marine Grade Class D Amplifier - SM4.1000D
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)
Garmin 010-01500-00 Fusion Entertainment 4-channel Marine Amplifier
Garmin 010-01500-00 Fusion Entertainment 4-channel Marine Amplifier
$190.00 in stock
Features
- Class-AB amplifier design delivers efficiency with reduced distortion
- Conformal coated PCBs provide extra protection from the marine elements, helping to extend the life of your amplifier
- Heat sink provides greater dissipation of heat for enhanced component reliability
- Features built-in variable bass boost, a subsonic filter and variable crossover filters for enhanced performance and system protection
- 2 ohm stereo stable design, capable of powering up to four pairs of speakers, or two pairs of speakers and one subwoofer
Soundstream MR4.1400D Rubicon Nano Marine 1400W Class D 4-Channel Amplifier,White
Soundstream MR4.1400D Rubicon Nano Marine 1400W Class D 4-Channel Amplifier,White
Features
- Rubicon Nano Marine 1400W Class D 4-CH Amplifier
- High Efficiency Class D Full Range Amplifiers
- Hybrid Aluminum Alloy Heatsink for Optimum Dissipation
- 2-ohm Stereo & 4-ohm Bridged Class D Full Range
- MOSFET Power Supply w/ Audiophile Grade IRTM Transistors
Kicker 42PXA3004 PXA Series 4 Channel Amplifier for Car Audio Speakers, 75 Watts Per Channel, 150 Watts Bridged, Black
Kicker 42PXA3004 PXA Series 4 Channel Amplifier for Car Audio Speakers, 75 Watts Per Channel, 150 Watts Bridged, Black
Features
- Small Footprint, Big Power
- High Level or Preamp Input Selection
- Kicker
Marine Bluetooth Amplifier 4 Channel Class D 800W Amp Stereo on Boats UTV ATV Golf Carts and Cars
Marine Bluetooth Amplifier 4 Channel Class D 800W Amp Stereo on Boats UTV ATV Golf Carts and Cars
Features
- Waterproof Marine Bluetooth Amplifier (No head unit required) & 3 m Wired Remote with 3-color LED indicator (sources - USB/AUX/Bluetooth). Wired Remote with S-terminal connector, please ensure the cable connection is always tight.
- Marine Amplifier with Controller, hidden stereo
- Bluetooth Amplifier with wired remote controller
- Bluetooth Streaming, Boasts Power 60W x 4CH
- Elegant Design, Solid Materials, Durable
In this article, we have reviewed the best marine 4 channel amp for our readers. We hope you get the perfect marine 4 channel amp from our above list. If you didn’t find your desired one then check out Kenwood KAC-M3004 4 Channel 600 Watt Amp Marine ATV Boat Amplifier + Wiring Kit, one of the most sold items in the market.