Water-resistant, Marine & Off-Road Amplifiers at Sonic Electronix

Water-resistant, Marine & Off-Road Amplifiers

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An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.

This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
The lowest impedance the amplifier will handle when it is not bridged.
The lowest impedance the amplifier will handle when it is bridged.
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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MTX Audio 400W 5 Speaker Polaris RZR Audio Package - System 3

Vehicle-Specific Complete Audio Package featuring Bluetooth Receiver, Four Speakers + Subwoofer, and Weatherproof Amplifier

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Vehicle-Specific Complete Audio Package featuring Bluetooth Receiver, Four Speakers + Subwoofer, and Weatherproof Amplifier

•Digital Bluetooth Receiver with 3" Color Display, SiriusXMTM Ready
• Direct fit, No drilling require
• Dash Speaker Pods
• Cage Mount Speaker Pods
• 4-channel Weatherproof Powersports Amplifier
• Amplified Direct Fit Loaded Subwoofer Enclosure

MTX Audio 400W 5 Speaker Polaris RZR Audio Package - System 3

Vehicle-Specific Complete Audio Package featuring Bluetooth Receiver, Four Speakers + Subwoofer, and Weatherproof Amplifier

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Ships at Later Date

$1869.95 (12.32% off)
$1,639.65
NVX MVPA4 4-Channel Amplifier + Free Pure OFC Copper 8 Gauge Installation Kit

Micro-V Series 400W 4-Ch Class D Compact Amplifier with 100% Copper, 4-Ch True Spec 8 Gauge Installation Kit

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Micro-V Series 400W 4-Ch Class D Compact Amplifier with 100% Copper, 4-Ch True Spec 8 Gauge Installation Kit

• The size of a postcard with 400 Watts True RMS Output!
• • MVP Series 4-Channel Micro Class D Amplifier
• 50W x 4-Chan. @ 4 ohms
• 100W x 4-Chan. @ 2 ohms
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Extremely Small Footprint!
• 8 Gauge 4-Channel Complete Amplifier Installation Kit
• For Car Audio Systems Up To 600 Watts RMS
• Silver-Tinned 100% Virgin Copper
• 4-channel RCA Interconnect Cable

117
NVX MVPA4 4-Channel Amplifier + Free Pure OFC Copper 8 Gauge Installation Kit

Micro-V Series 400W 4-Ch Class D Compact Amplifier with 100% Copper, 4-Ch True Spec 8 Gauge Installation Kit

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$529.97 (40.56% off)
$314.99

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Micro-V Series 400W 4-Ch Class D Compact Amplifier with 100% Copper, 4-Ch True Spec 8 Gauge Installation Kit

$314.99

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Belva BAK84

Complete 8 Gauge Amplifier Wiring Kit with 4-Channel RCA Interconnects

$29.99

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NVX Universal Remote Level Bass Control

Controls bass level and frequency via RCA/Interconnect connectors on any amp.

$9.99

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NVX XIV45 4-Channel RCA Audio Interconnect Cable

5 Meters (16.4 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

$23.99

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Cerwin Vega B54 + Belva 4 Gauge Amp Kit

1200W 4-Channel Bomber Series Class D Amplifier

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1200W 4-Channel Bomber Series Class D Amplifier

• RMS: 80 Watts x 4 @ 4 ohms, 150 Watts x 4 @ 2 ohms, Bridged: 300 Watts x 2 @ 4 ohm
• Total Peak Power: 1000 Watts
• Class D IR Chipset with DirectFET Power Mosfet Output
• Wired remote bass level control included
• Ultra Compact High Density Aluminum Alloy Chassis
• Dimensions: 4.02" W x 8.70" L x 1.40" H

48
Cerwin Vega B54 + Belva 4 Gauge Amp Kit

1200W 4-Channel Bomber Series Class D Amplifier

In stock

$529.98 (35.85% off)
$339.99
Rockford X3-STAGE4

400 watt stereo, front speaker, subwoofer, & rear speaker kit for 2017-2018 Maverick X3 models

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400 watt stereo, front speaker, subwoofer, & rear speaker kit for 2017-2018 Maverick X3 models

• 400 watt stereo, front speaker, subwoofer, & rear speaker kit for 2017-2018 Maverick X3 models
• Direct connect wiring harnesses for Can-Am X3 models
• Element Ready™ design withstands harsh outdoor environment
• Enclosures for speakers and/or subwoofer integrate with no loss of passenger/cargo space

Rockford X3-STAGE4

400 watt stereo, front speaker, subwoofer, & rear speaker kit for 2017-2018 Maverick X3 models

In stock

Only 1 Left!

$3041.99 (23.08% off)
$2,339.99
JL Audio MX280/4 + Free Belva Amp Kit

140W RMS Class-D Weatherproof Motorcycle / ATV / SSV / UTV / Car 4-Channel Amplifier

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140W RMS Class-D Weatherproof Motorcycle / ATV / SSV / UTV / Car 4-Channel Amplifier

• 50 Watts RMS x 4 @ 4 ohms
• 70 Watts RMS x 4 @ 2 ohms
• Total Peak Power: 280 Watts
• CEA-2006 Compliant/Preamp Outputs/LPF
• Frequency Response: 20 - 20,000 Hz
• Dimensions: 8.66"W x 3.09"D x 1.77"H

16
JL Audio MX280/4 + Free Belva Amp Kit

140W RMS Class-D Weatherproof Motorcycle / ATV / SSV / UTV / Car 4-Channel Amplifier

In stock

$329.98 (3.03% off)
$319.99
Rockford X3-STAGE5

1000 watt stereo, front speaker, subwoofer, & rear speaker kit for 2017-2018 Maverick X3 models

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1000 watt stereo, front speaker, subwoofer, & rear speaker kit for 2017-2018 Maverick X3 models

• 1000 watt stereo, front speaker, subwoofer, & rear speaker kit for 2017-2018 Maverick X3 models
• Direct connect wiring harnesses for Can-Am X3 models
• Element Ready™ design withstands harsh outdoor environment
• Enclosures for speakers and subwoofer integrate with no loss of passenger/cargo space

Rockford X3-STAGE5

1000 watt stereo, front speaker, subwoofer, & rear speaker kit for 2017-2018 Maverick X3 models

Special order

Ships at Later Date

$4250.99 (23.08% off)
$3,269.99
JL Audio MX280/4 Amplifier + High Quality NVX Amp Kit

140W RMS Class-D Weatherproof Motorcycle / ATV / SSV / UTV / Car 4-Channel Amplifier

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140W RMS Class-D Weatherproof Motorcycle / ATV / SSV / UTV / Car 4-Channel Amplifier

• 50 Watts RMS x 4 @ 4 ohms
• 70 Watts RMS x 4 @ 2 ohms
• Total Peak Power: 280 Watts
• CEA-2006 Compliant/Preamp Outputs/LPF
• Frequency Response: 20 - 20,000 Hz
• Dimensions: 8.66"W x 3.09"D x 1.77"H

55
JL Audio MX280/4 Amplifier + High Quality NVX Amp Kit

140W RMS Class-D Weatherproof Motorcycle / ATV / SSV / UTV / Car 4-Channel Amplifier

In stock

$409.97 (21.95% off)
$319.99
Rockford X3-STAGE3

400 watt stereo, front speaker, and subwoofer kit for select Maverick X3 models

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400 watt stereo, front speaker, and subwoofer kit for select Maverick X3 models

• 400 watt stereo, front speaker, and subwoofer kit for select Maverick X3 models
• Direct connect wiring harnesses for Can-Am X3 models
• Element Ready™ design withstands harsh outdoor environment
• Enclosures for speakers and/or subwoofer integrate with no loss of passenger/cargo space

Rockford X3-STAGE3

400 watt stereo, front speaker, and subwoofer kit for select Maverick X3 models

Available

Ships in 1-2 weeks

$2222.99 (23.08% off)
$1,709.99
Rockford YXZ-STAGE5

400 Watt Amplified Stereo, Front Upper & Lower Speaker, and Subwoofer Kit for select Yamaha YXZ® models

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400 Watt Amplified Stereo, Front Upper & Lower Speaker, and Subwoofer Kit for select Yamaha YXZ® models

• YAMAHA YXZ STAGE 5 KIT
• 400 Watt Amplified Stereo, Front Upper & Lower Speaker, and Subwoofer Kit
• Compatible with Yamaha YXZ1000R (2016-2019) & YXZ1000R SS (2017-2019) models
• Direct connect wiring harnesses for YXZ models
• System is Element Ready™ to withstand harsh outdoor environment

Rockford YXZ-STAGE5

400 Watt Amplified Stereo, Front Upper & Lower Speaker, and Subwoofer Kit for select Yamaha YXZ® models

Available

Ships in 1-2 weeks

$3223.99 (23.08% off)
$2,479.99
NVX VADM4 Amplifier + 5.25" NVX Speakers

400W RMS Full Range Class D 4-Channel Car/Marine/Powersports Amplifier

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400W RMS Full Range Class D 4-Channel Car/Marine/Powersports Amplifier

• 400 Watt True RMS Output!
• Marine Certified 4-Channel Micro Class D Amplifier
• 75W x 4-Chan. @ 4 ohms
• 100W x 4-Chan. @ 2 ohms
• 3-Way System Protection
• 4/2 Channel Operation
• 8 Gauge Power and Ground Inputs
• Extremely Small Footprint!

38
NVX VADM4 Amplifier + 5.25" NVX Speakers

400W RMS Full Range Class D 4-Channel Car/Marine/Powersports Amplifier

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$389.97 (23.08% off)
$299.97

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400W RMS Full Range Class D 4-Channel Car/Marine/Powersports Amplifier

$299.97

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Belva BAK84

Complete 8 Gauge Amplifier Wiring Kit with 4-Channel RCA Interconnects

$29.99

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Scosche TK12 Car Stereo Installation Kit

Includes panel removal tool, wire cutter/stripper, test light, RCA cable runner, screwdriver, and more!

$19.99

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Rockford YXZ-STAGE3

400 Watt Amplified Stereo with Front Speaker and Subwoofer Kit for select Yamaha YXZ® models

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400 Watt Amplified Stereo with Front Speaker and Subwoofer Kit for select Yamaha YXZ® models

• Stereo and Front Speaker Kit for select Yamaha YXZ models
• Direct connect wiring harnesses for Yamaha YXZ models
• System is Element Ready™ to withstand harsh outdoor environment
• 6.5" Front Lower Speaker with Enclosure
• 10" 400W Amplified Subwoofer with Enclosure
• Amp Wiring Kit Included

Rockford YXZ-STAGE3

400 Watt Amplified Stereo with Front Speaker and Subwoofer Kit for select Yamaha YXZ® models

Available

Ships in 1-2 weeks

$2313.99 (14.43% off)
$1,979.99
Cerwin Vega B54

1200W 4-Channel Bomber Series Class D Amplifier

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1200W 4-Channel Bomber Series Class D Amplifier

• RMS: 80 Watts x 4 @ 4 ohms, 150 Watts x 4 @ 2 ohms, Bridged: 300 Watts x 2 @ 4 ohm
• Total Peak Power: 1000 Watts
• Class D IR Chipset with DirectFET Power Mosfet Output
• Wired remote bass level control included
• Ultra Compact High Density Aluminum Alloy Chassis
• Dimensions: 4.02" W x 8.70" L x 1.40" H

3
Cerwin Vega B54

1200W 4-Channel Bomber Series Class D Amplifier

In stock

$429.99 (25.58% off)
$319.99
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  • Save 25% on an 8 Gauge Amp Kit with Purchase!

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1200W 4-Channel Bomber Series Class D Amplifier

$319.99

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Belva BAK44 4-Channel 4 Gauge Amplifier Installation Kit

Complete 4-Channel CCA 4 Gauge Amp Kit with RCA Cables and Speaker Wire

$39.99

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NVX XIV45 4-Channel RCA Audio Interconnect Cable

5 Meters (16.4 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

$23.99

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NVX XWS1225 12 AWG Speaker Wire

25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

$29.99

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NVX MVPA6 6-Channel Marine Amplifier + 8 Gauge Marine Amp Wiring Kit

Marine-V Series 900W Class D Compact Marine/Powersports/Motorcycle Amplifier

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Marine-V Series 900W Class D Compact Marine/Powersports/Motorcycle Amplifier

• 100 Watts RMS x 6 @ 4 ohms
• 150 Watts RMS x 1 @ 2 ohms
• CEA-2006 Compliant/Preamp Outputs/LPF
Weatherproof Amplifier
• Micro Amp
• 12.9"W x 4.4"L x 1.7"H

44
NVX MVPA6 6-Channel Marine Amplifier + 8 Gauge Marine Amp Wiring Kit

Marine-V Series 900W Class D Compact Marine/Powersports/Motorcycle Amplifier

In stock

$649.97 (33.84% off)
$429.99
MTX Audio MUD50.2

200W Peak (100W RMS) 2-Channel Ultra-Compact Class D Power Sports Amplifier for Install in Car, Off-Road, SSV and more...

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200W Peak (100W RMS) 2-Channel Ultra-Compact Class D Power Sports Amplifier for Install in Car, Off-Road, SSV and more...

• 25 Watts RMS x 2 @ 4 ohms
• 50 Watts RMS x 2 @ 2 ohms
• Total Peak Power: 200 Watts
• Fixed high-pass filter: 80 Hz
• Frequency Response: 11 - 40,000 Hz
• Speaker-level (high-level) inputs
• Class D Full Range

2
MTX Audio MUD50.2

200W Peak (100W RMS) 2-Channel Ultra-Compact Class D Power Sports Amplifier for Install in Car, Off-Road, SSV and more...

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$119.99 (16.70% off)
$99.95
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  • 25% Off NVX Universal Bluetooth Controller with Purchase!

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200W Peak (100W RMS) 2-Channel Ultra-Compact Class D Power Sports Amplifier for Install in Car, Off-Road, SSV and more...

$99.95

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NVX XLCA2

2 Channel Line Out Converter with xBOOST & 3-year warranty*!

$89.99

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NVX XIV25 V-Series 2-Channel RCA Cable

16.4 ft 2-Channel RCA Audio Interconnect Cable with Twisted Pair Construction

$18.99

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NVX XWS1650 Speaker Wire

50 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

$29.99

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Cerwin Vega SRPM700.4D Amplifier + Free High Quality NVX Amp Kit

700W RMS Class-D 4-Channel 2-Ohm Stable Marine Amplifier

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700W RMS Class-D 4-Channel 2-Ohm Stable Marine Amplifier

• 100 Watts RMS x 4 @ 4 ohms
• 150 Watts RMS x 4 @ 2 ohms
• Conformal Coating Protects Against Moisture
• Aluminum Heatsink

54
Cerwin Vega SRPM700.4D Amplifier + Free High Quality NVX Amp Kit

700W RMS Class-D 4-Channel 2-Ohm Stable Marine Amplifier

In stock

$779.97 (50.10% off)
$389.19

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Marine amplifiers are the perfect addition to your boat and will amp up your sound system's volume. In the marine environment, it is important that you have enough power to drown out background noises. A marine amp will provide plenty of power for your marine speakers and marine subwoofers and they are built to last in the marine environment, as marine amplifiers can withstand light rain, moisture and damaging sun rays.

Marine audio amplifiers protect your audio system’s power from moisture and humidity with gasket-sealed covers for the top-mounted controls and endcaps. The marine amps feature rubber caps to cover the RCA inputs, silicone boots to shield the fuses, and their circuit boards have corrosion-deterring conformal coating.

We carry marine amplifiers in monoblock, 2-channel, 4-channel and 5-channel models. In addition, they come in variety of power output capabilities. Some popular brands for marine amplifiers are Boss, Kicker, and MB Quart. Shop now!

With a marine certified amplifier, your boat will sound better than ever. Here at Sonic, we carry mono, 2-Channel, and multi-channel amplifiers that are perfect for your specific marine needs.

Trying to add an amplifier to your motorcycle? Check out our selection of amplifier specially made to endure harsh environments like wind, rain, and mud! Most are compact enough to fit into fairings and other small areas required by motorcycles.
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