The Best Marine Amplifiers 2025

1. JBL MA704 4 Channel Amplifier 1000 Amp Max

JBL MA704 4 Channel Amplifier 1000 Amp Max Model: MA704 Speaker-level and low-level inputs let JBL Apex amplifiers integrate with just about any audio input. JBLMarine amps feature selectable all-, high-, or low-pass crossovers with variable electronic frequency adjustment to allow for fine-tuning multiple system configurations. JBL power and performance at an affordable price point. Product family look and feel to meet the needs of our JBL cutomers. JBL Marine amplifiers are engineered to withstand harsh marine conditions, with fully "marinzed" circuit boards to ensure flawless power delivery, year after year Onbard 12dB electronic crossovers, with slectable full-range, high-pass & low-pass switching, provide tuning options for systems of any size Output power is perfectly matched to meet the needs for your JBL marine products JBL Marine amplifiers feature a slim chassis and a small footprint to allow for installation in tight spaces New weather-resistant & high-performance JBL Marine amplifiers deliver impressive power from a compact chassis designed to withstand outdoor environments. with 4-channel and 5-channel outputs. JBL Marine amplifiers incorporate our latest amplifier topology that includes selectable all-, high-, or low-pass crossovers with variable electronic frequency adjustment for precision system tuning. Engineered for harsh marine conditions, with power and performance to meet the needs of any outdoor audio system, JBL Marine amplifiers are the perfect match for all of your JBL marine products.

Max Power1000W Peak RMS Power Output @ 2?100W x 4, <1% THD+N RMS Power Output @ 4?70W x 4, <1% THD+N RMS Power Output, 4? Bridged200W x 2, <1% THD+N Signal-to-Noise Ratio>85dB (ref 1W output @ 4?) BRAND : JBL UPC : 50036346320 Model No :JBLMA704

2. JBL - Marine 1800W Class AB Bridgeable Multichannel Amplifier with Variable Crossovers - White/Black

Handles up to 450W peak power (150W RMS); 6" x 9" polypropylene woofer; 3/4" and 1/2" tweeters; water-resistant design

Enjoy dynamic sound with this five-channel JBL Marine amplifier. The 80dB signal-to-noise ratio delivers crisp, clear audio, and the compact size allows for easy transport and flexible installation. This white JBL Marine amplifier has weather-resistant construction that protects against harsh elements for long-lasting durability, and the simple interface ensures easy volume control.

3. JBL - Apex 1250W Class D Bridgeable Multichannel Amplifier with Variable Crossovers - Black

The SPH-10BT offers a new approach to smartphone connectivity with a built-in smartphone cradle and the ability to connect to the Pioneer Smart Sync app for a connected and integrated driving experience

Power up the stereo system in your watercraft with this JBL Apex powersports amplifier. Weatherproof construction including a reinforced circuit board helps ensure strong performance through harsh weather conditions. The compact size of this JBL Apex powersports amplifier helps save on space and provides a wider variety of viable installation spots.

4. Stinger - 4GA Marine Amplifier Power Installation Kit - Yellow/Red

140W maximum power handling (65W RMS); dual 6-1/2" polypropylene woofers; IPX5 water-resistant design; UV-resistant; removable grille

Add a powerful amplifier to your boat's sound system with this 23&#8217; 4GA Marine Amplifier Power Installation Kit by Stinger. The SEA4247 features a 23-foot (7m) 4GA wire with marine-grade PVC jacket and comes in a dual cable form for neat power and ground circuit setup. The tinned oxygen-free copper conductors of this complete Stinger marine amplifier installation kit resist corrosion. This marine-compliant kit also includes an 80A MIDI fuse and element-resistant fuse holder for lasting durability.

5. Stinger - Micro 5-Channel 1000W Marine and Powersports Amplifier - Silver

Compatible with Harley-Davidson Street Glide touring models with batwing fairing 1998 to 2013; predrilled for Metra PowerSports amplifiers, including MPS-AMP60x4, MPS-AMP100x2, MPS-AMP200-2D, MPS-AMP125-4D, and MPS-AMP850-5D; support of other micro amps; steel construction, UV powder coating; allows for installation of 2 MPS amplifiers

Take your audio off-road or on the water with this Micro 5-Channel 1000W Marine and Powersports Amplifier by Stinger. The SPX1000X5 is a full-range Class D amplifier that delivers massive power in a compact size to fit limited spaces. This weather-resistant amplifier features an IPX4/5 rated design to reject salt and fog intrusion in harsh marine environments. Dial in your bass just the way you like it with the included remote subwoofer level controller. This micro amplifier is ideal for boaters or powersports users who have limited space available yet demand powerful sound.

6. MB Quart - Nautic 560W Class AB Multichannel MOSFET Amplifier with Variable Crossovers - White

Variable adjustment crossovers; high- and low-level inputs; conformal-coated PCB; compact size

Equip your boat with this four-channel MB Quartz Nautic marine amplifier for enhanced sound quality. Sound control is retained using variable electronic crossovers, while ,FLUID-FETs produce powerful, high-quality sound. This MB Quartz Nautic marine amplifier boasts marine-grade protection from water and dust and a heavy-duty heat sink for effective cooling.

7. MB Quart - Nautic 600W Class AB Multichannel Amplifier with Variable Crossovers - White

Compatible with Jeep Wrangler JL Sport 2018 and later vehicles; durable ABS construction; top, left, and right side marking

Improve your marine audio delivery with this MB Quart Nautic amplifier. The Q-Stasis preamplifier delivers maximum low voltage signals into the circuit for precise reproduction, while the electronic equalizer lets you adjust output levels to suit specific frequencies. This MB Quart Nautic amplifier features a heavy-duty heat sink for efficient temperature stabilization, and the LED indicator allows easy monitoring for overload.

8. Stinger - 8GA Marine Amplifier Power Installation Kit - Yellow/Red

Variable adjustment crossovers; high- and low-level inputs; conformal-coated PCB; compact size

Secure a boat amplifier with this complete 23&#8217; 8GA Marine Amplifier Power Installation Kit by Stinger. The SEA4287 features a 23-foot (7m) 8GA wire with marine-grade PVC jacket and comes in a dual cable form for neat power and ground circuit setup. It also features tinned hyper-twist oxygen-free copper conductors with a high strand count for heavy-duty quality and seamless current transfer. This marine-compliant kit includes a 40A MIDI fuse and element-resistant fuse holder for lasting durability.

9. MB Quart - Nautic 1000W Class AB/D Multichannel Amplifier with Variable Crossovers - White

Variable adjustment crossovers; high- and low-level inputs; conformal-coated PCB; compact size

Boost your boat's audio transmission with this five-channel MB Quart Nautic amplifier. The variable electronic crossovers keep you in control of the sound, while the low noise preamplifier circuit minimizes signal distortion. This MB Quart Nautic amplifier features FLUID-FETS output device technology for high quality sound reproduction, and the marine-grade protection ensures durability against extreme conditions.