Best 4 Channel Marine Amp 2021 - Top 10 Picks

This is the ultimate buyer's guide to finding the right 4 channel marine amp to suit your needs. We review the 10 best4 channel marine amp on the market so you know that your next decision will be a smart one!

When you're trying to select the good 4 channel marine amp, there are a lot of factors to consider. This page has everything you need to know in one place.

This guide will help you avoid the pitfalls that come with researching 4 channel marine amp.

You don't have to try out every 4 channel marine amp to find one that meets your needs. After extensive research and hours of in-person tests, we've found the best 4 channel marine amp to be Rockford Fosgate M5-800X4 IPX6 Element Ready 800-Watt 4-Channel Marine Amplifier with Dynamic Power. There are a lot of sub-par products out there, but this product is one of the highest quality you'll find. Next best option is Skar Audio RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier.

Choosing the 4 channel marine amp can be a daunting task, especially if you're doing it for the first time. Here's what we recommend based on our extensive research. We've compiled a list of the highest rated 4 channel marine amp. The following products are some of the best you can get right now.

List of Top 10 4 Channel Marine Amp

Review of Best 4 Channel Marine Amp

1. Rockford Fosgate M5-800X4 IPX6 Element Ready 800-Watt 4-Channel Marine Amplifier with Dynamic Power

  • Our 800-Watt, 4-channel, ultra-compact (1.7" x 4.25" x 8.41") M5-800X4 amplifier features the next level of Element Ready design and performance from Rockford Fosgate, that’s built as rugged as the outdoor environment it’s used in
  • The IPX6 rated M5 amplifiers provide superior protection and are built to stand up to all the elements including water, dust, mud, and UV rays
  • The M5 amplifiers are the first series based on new industry standard Dynamic Power ratings, deliver more output where you actually hear it (Dynamic Power Rating: 125 Watts x 4 @ 4Ω OR 200 Watts x 4 @ 2Ω OR 400 Watts x 2 @ 4Ω Bridged/Mono)
  • Built on the popular Rockford Fosgate Power Marine series, M5 amplifiers also feature the same great technologies like Constant Power, Class-AD and C.L.E.A.N., all engineered, developed, and validated in Tempe, Arizona
  • Famous Rockford Fosgate build quality with a full 2-year warranty when purchased from an authorized Rockford Fosgate reseller

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

  • 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)

3. Rockford Fosgate TM400X4ad Power Marine 400 Watt Class-ad 4-Channel Amplifier

  • Our compact (1.6” x 4.3” x 8.3”) Power Marine TM400X4ad 4-channel amplifier produces more power per square inch than any other model we make with 400 Watts of POWER
  • Proprietary Constant Power amps are the most powerful on the market, delivering up to 25% more power across all impedance loads (100 Watts x 4 @ 4-Ohm or 100 Watts x 4 @ 2-Ohm or 200 Watts x 2 @ 4-Ohm Bridged)
  • Built on Rockford Fosgate’s proprietary Class-AD technology and Element Ready protecting against dust, UV, and corrosion, making it perfect for motorsport and marine applications
  • High-level auto turn-on, CLEAN circuit input/output clip detection, On-board Punch EQ with +18dB boost @ 45Hz and 12dB/octave Butterworth crossover make TM400X4ad an impressive POWER house
  • Famous Rockford Fosgate build quality insures that the TM400X4ad will handle everything you throw at it! Full 2-year parts and labor warranty when purchased from an authorized Rockford Fosgate reseller

4. NVX VAD10004 1000W RMS Full Range Class D 4-Channel Car/Marine/Powersports Amplifier

  • 📢 PEAK POWER: 2000 Watts
  • 📢 RMS POWER: 【4 ohms: 150W x 4 chan.】【2 ohms: 250W x 4 chan.】【4 ohms bridged: 500W x 2 chan.】
  • 📢 MARINE CERTIFIED: This 4-Channel VAD Amp 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 | Heavy duty aluminum alloy heat-sink | Platinum-plated RCA level inputs | Platinum-plated screw terminals | Preamp RCA outputs to daisy chain multiple amps | Selectable crossover modes

5. 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
  • 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

6. Rockford Fosgate PM600X4 Punch Marine 600 Watt 4-Channel Amplifier

  • The PM600X4 marine grade 4-channel amplifier (2.4" x 7.8" x 13.3") was designed to provide system design versatility while packing a Punch with 600 Watts of RMS power
  • Versatile design can be used in either 2 or 4 channel configurations (RMS Power Output: 75 Watts x 4 @ 4-Ohm or 150 Watts x 4 @ 2-Ohm or 300 Watts x 2 @ 4-Ohm Bridged)
  • Compact design with high dynamic power using Class-a/b technology, the PM600X4 multi-channel amp is flexible enough to power any audio system configuration in your marine and motorsports vehicles
  • High level input capable with Auto Turn-On circuit, On-board Punch EQ with +18dB boost @ 45Hz and 12dB/octave Butterworth crossover make the PM600X4a serious power house
  • Famous Rockford Fosgate build quality insures that the PM600X4 will handle everything you throw at it! Full 2-year parts and labor warranty when purchased from an authorized Rockford Fosgate reseller

8. KICKER 48KMA3604 360 Watt 4-Channel Marine Amplifier Boat Amp KMA360.4

  • Specifications: POWER [watts/ch], 2 OHM STEREO: 90 x 4, POWER [watts/ch], 4 OHM BRIDGED MONO: 180 x 2, DYNAMIC POWER [watts]: 500.
  • COMES WITH WIRED REMOTE: No, DIMS [in] all models 2-5/16H x 7-1/8W x_L: 12-7/16, DIMS [cm] all models 5.9H x 18.0W x_L: 31.5.
  • FREQUENCY RESPONSE [Hz]: 10-20k, +0/-1dB, INPUT SENSITIVITY: High Level 250mV-10V, Low Level 125mV-5V.
  • SIGNAL-TO-NOISE RATIO: 95dB, a-weighted, re: rated power, KickEQ BOOST: Variable 0-6dB, centered 40Hz.
  • ACTIVE CROSSOVER: 12dB/octave, variable 50-200Hz, selectable high pass, low pass or all pass.

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

  • 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

10. 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)

  • 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

Last update on 2021-10-17 / Affiliate links / Images from Amazon Product Advertising API

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