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.

1 - Monoblock (4)

2-Channel (3)

4-Channel (2)

6-Channel (2)

5-Channel (1)

Amplifier Key Features

Amplifiers can offer a diverse array of features. If you select more than one feature, then you will view amplifiers that have ALL features selected. These include speaker-level inputs that facilitate seamless integration with factory audio systems, Bluetooth connectivity suitable for ATV/UTV or Classic vehicle setups, built-in DSPs that provide enhanced control over your audio signal, and a host of other functionalities to explore.

Bass Boost (10)

Compact Design (3)

Speaker Level Inputs (9)

Weather-Resistant (8)

Amplifier Class

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.

D (12)

Total RMS Power Output

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.

250–500 watts (2)

500–1,000 watts (7)

1,000–1,500 watts (3)

Total Peak Power Output

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.

Up to 500 watts (11)

1,000–2,000 watts (1)

Series

Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.

DXM Series (4)

HXM Series (3)

MicroV2 Series (3)

MotorSport Series (2)

Minimum Impedance Unbridged

The lowest impedance the amplifier will handle when it is not bridged.

2 (9)

1 (3)

Minimum Impedance Bridged

The lowest impedance the amplifier will handle when it is bridged.

4 ohms (10)

Not Bridgeable (2)

Remote bass/level controller

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.

Yes (10)

No (2)

Sonic Certified Amplifier

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.

Not Tested (11)

Preamp Outputs

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.

1 pair (2)

Mono output (1)

Built-in Crossover

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.

Amp Bluetooth Connectivity

This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.

Yes (5)

No (2)

Deals

Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

FREE Amp Kit (10)

Marine and Powersports (12)

On Sale (10)

Sonic Madness Sale (12)

VIP (11)

Availability

In Stock (6)

In stock. Ships from manufacturer (6)

Available to order (3)

Trending Deals in Diamond Audio Marine Amplifiers for Boats

Left Right

All Deals

NVX 10% Off

Free Amp Wiring Kit

Shop the Category

Filters & Sort

Sort

Best Match

Best Rated
Biggest $ savings off list price
Biggest % savings off list price
Price: Lowest First
Price: Highest First
Product Name: A-Z
Product Name: Z-A
Newest First

Diamond Audio MICRO1V2

500W RMS Class D MicroV2 Series Compact Monoblock Compact Amplifier with Bass Remote and Bluetooth

Compare

Go to item page

Diamond Audio MICRO1V2

500W RMS Class D MicroV2 Series Compact Monoblock Compact Amplifier with Bass Remote and Bluetooth

• 175 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Bridged: 175 watts x 1 channel @ 4 ohms
• Bridged: 300 watts x 1 channel @ 2-ohms
• Bridged: 500 watts x 1 channel @ 1-ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier

Free shipping in USA. Provide zip for delivery date.

VIP Product Get $36.00 in rewards to spend later

empty

Was $469.99 Details

$359.99

In stock

Add to Cart

Diamond Audio HXM800.2D

800W RMS Motorsport Series Full-Range Class D 2-Channel Marine Amplifier

Compare

Go to item page

Diamond Audio HXM800.2D

800W RMS Motorsport Series Full-Range Class D 2-Channel Marine Amplifier

• 300 watts x 2 channel @ 4 ohm
• 400 watts x 2 channel @ 2 ohm
• Bridged: 800 watts x 1 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

FREE Amp Kit at Checkout! Shop deal

Free shipping in USA. Provide zip for delivery date.

VIP Product Get $45.00 in rewards to spend later

empty

Was $499.99 Details

$449.99

In stock

Only 2 Left!

Add to Cart

• 300 watts x 2 channel @ 4 ohm
• 400 watts x 2 channel @ 2 ohm
• Bridged: 800 watts x 1 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

Diamond Audio MICRO5V2

950W RMS Class D MicroV2 Series 5-Channel Compact Amplifier with Bass Remote and Bluetooth

Compare

Go to item page

Diamond Audio MICRO5V2

950W RMS Class D MicroV2 Series 5-Channel Compact Amplifier with Bass Remote and Bluetooth

• 80 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 150 watts x 4 channel + 350 watts x 1 channel @ 2 ohm
• Bridged: 300 watts x 2 channel + 200 watts x 1 channel @ 4 ohm
• Total RMS Power: 950 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

Get a FREE Amp Kit at Checkout!

Free shipping in USA. Provide zip for delivery date.

VIP Product Get $55.00 in rewards to spend later

empty

Was $719.99 Details

$549.99

In stock.

Add to Cart

Diamond Audio MICRO2V2

500W RMS Class D MicroV2 Series 2-Channel Full Range Compact Amplifier with Bluetooth

Compare

Go to item page

Diamond Audio MICRO2V2

500W RMS Class D MicroV2 Series 2-Channel Full Range Compact Amplifier with Bluetooth

• 150 watts x 2 channel @ 4 ohm
• 250 watts x 2 channel @ 2 ohm
• Bridged: 500 watts x 1 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

Get a FREE Amp Kit at Checkout!

Free shipping in USA. Provide zip for delivery date.

VIP Product Get $32.00 in rewards to spend later

empty

Was $419.99 Details

$319.99

In stock

Add to Cart

• 150 watts x 2 channel @ 4 ohm
• 250 watts x 2 channel @ 2 ohm
• Bridged: 500 watts x 1 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

Diamond Audio DXM600.2D

600W RMS DXM Series Class-D 2-Channel Full Range Marine Amplifier

Compare

Go to item page

Diamond Audio DXM600.2D

600W RMS DXM Series Class-D 2-Channel Full Range Marine Amplifier

• 200 watts x 2 channel @ 4 ohm
• 300 watts x 2 channel @ 2 ohm
• Bridged: 600 watts x 1 channel @ 4 ohm
• Total RMS Power: 600 watts
• Stable & Reliable Four Layers PCB Trace Layout
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

Get a FREE Amp Kit at Checkout!

Free shipping in USA. Provide zip for delivery date.

VIP Product Get $48.00 in rewards to spend later

empty

Was $499.99 Details

$479.99

In stock.

Add to Cart

Diamond Audio HXM800.4D

800W RMS Class D Motorsport Series 4-Channel Full Range Car, Marine and Powersport Amplifier with Bluetooth

Compare

Go to item page

Diamond Audio HXM800.4D

800W RMS Class D Motorsport Series 4-Channel Full Range Car, Marine and Powersport Amplifier with Bluetooth

• 120 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

FREE Amp Kit at Checkout! Shop deal

Free shipping in USA. Provide zip for delivery date.

VIP Product Get $59.00 in rewards to spend later

empty

Was $679.99 Details

$589.99

In stock.

Add to Cart

• 120 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Diamond Audio DXM800.4D

800W RMS DXM Series Class-D 4-Channel Marine Amplifier

Compare

Go to item page

Diamond Audio DXM800.4D

800W RMS DXM Series Class-D 4-Channel Marine Amplifier

• 125 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

FREE Amp Kit at Checkout! Shop deal

Free shipping in USA. Provide zip for delivery date.

VIP Product Get $59.00 in rewards to spend later

empty

Was $649.99 Details

$589.99

In stock.

Add to Cart

• 125 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Diamond Audio DXM1000.6D

900W RMS DXM Series 6-Channel Full Range Class D Waterproof Amplifier

Compare

Go to item page

Diamond Audio DXM1000.6D

900W RMS DXM Series 6-Channel Full Range Class D Waterproof Amplifier

• 100 watts x 6 channel + @ 4 ohm
• 150 watts x 6 channel
• Bridged: 300 watts x 3 channel @ 4 ohm + @ 2 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 6-Channel Amplifier
• Power Supply Harness Kits Included

Free shipping in USA. Provide zip for delivery date.

empty

Was $879.99 Details

$779.99

Available

Ships in 10-14 days

Add to Cart

Diamond Audio HXM1100.6D

1100W RMS HXM Series Class-D 6-Channel Full-Range Marine Amplifier

Compare

Go to item page

Diamond Audio HXM1100.6D

1100W RMS HXM Series Class-D 6-Channel Full-Range Marine Amplifier

• 90 watts x 4 channel + 250 watts x 2 channel @ 4 ohm
• 150 watts x 4 channel + 150 watts x 2 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm + 150 watts x 2 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable 6-Channel Amplifier

FREE Amp Kit at Checkout! Shop deal

Free shipping in USA. Provide zip for delivery date.

VIP Product Get $78.00 in rewards to spend later

empty

Was $949.99 Details

$779.99

Available

Ships in 10-14 days

Add to Cart

Diamond Audio HXM1200.1D

1200W RMS Class D Motorsport Series Monoblock Car, Marine and Powersport Amplifier with Bluetooth

Compare

Go to item page

Diamond Audio HXM1200.1D

1200W RMS Class D Motorsport Series Monoblock Car, Marine and Powersport Amplifier with Bluetooth

• 550 watts x 1 channel @ 4 ohm
• 850 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

FREE Amp Kit at Checkout! Shop deal

Free shipping in USA. Provide zip for delivery date.

VIP Product Get $65.00 in rewards to spend later

empty

Was $719.99 Details

$649.99

Available

Ships in 10-14 days

Add to Cart

• 550 watts x 1 channel @ 4 ohm
• 850 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

Diamond Audio DXM1200.1D

1200W RMS DXM Series Class-D Monoblock Amplifier

Compare

Go to item page

Diamond Audio DXM1200.1D

1200W RMS DXM Series Class-D Monoblock Amplifier

• 500 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

FREE Amp Kit at Checkout! Shop deal

Free shipping in USA. Provide zip for delivery date.

VIP Product Get $65.00 in rewards to spend later

empty

Was $679.99 Details

$649.99

In stock.

Add to Cart

• 500 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

Diamond Audio HXM800.1D

800W RMS HXM Series Class-D Monoblock Full-Range Marine Amplifier

Compare

Go to item page

Diamond Audio HXM800.1D

800W RMS HXM Series Class-D Monoblock Full-Range Marine Amplifier

• 350 watts x 1 channel @ 4 ohm
• 550 watts x 1 channel @ 2 ohm
• 800 watts x 1 channel @ 1 ohm
• Total RMS Power: 800 watts
• Ultra-compact, high density aluminum alloy chassis provides superior thermal stability
• Class D 1 ohm Stable Monoblock Amplifier

FREE Amp Kit at Checkout! Shop deal

Free shipping in USA. Provide zip for delivery date.

VIP Product Get $55.00 in rewards to spend later

empty

Was $599.99 Details

$549.99

In stock.

Add to Cart

Clear all

Related Categories in Diamond Audio Marine Amplifiers for Boats

Diamond Audio Car Audio Installation & Accessories
Find everything you need to install car audio components. We have car amplifier installation kits, car stereo install dash kits, car speaker adapters, installation tools, car subwoofer installation wire, and many other install parts. You'll also find the right car audio accessories to get the full potential from your car electronics such as Bluetooth car kits, Android and iPhone car stereo adapters, SIRIUS XM Satellite Radio and more.

We love people and we're ready to help you! See what separates us from our competition.

Free perks, no Prime^TM fees

Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.

Free install gear for stereos

Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.

Authentic & Authorized

We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.

View best sellers, deals, and more

Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!

Learn about All Car Audio

We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!

Call or email our experts

Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!

Why Shop With Us?

Welcome to the Team!

Diamond Audio Marine Amplifiers for Boats

Trending Deals in Diamond Audio Marine Amplifiers for Boats

Shop the Category

Diamond Audio MICRO1V2

Diamond Audio MICRO1V2

Diamond Audio HXM800.2D

Diamond Audio HXM800.2D

Diamond Audio MICRO5V2

Diamond Audio MICRO5V2

Diamond Audio MICRO2V2

Diamond Audio MICRO2V2

Diamond Audio DXM600.2D

Diamond Audio DXM600.2D

Diamond Audio HXM800.4D

Diamond Audio HXM800.4D

Diamond Audio DXM800.4D

Diamond Audio DXM800.4D

Diamond Audio DXM1000.6D

Diamond Audio DXM1000.6D

Diamond Audio HXM1100.6D

Diamond Audio HXM1100.6D

Diamond Audio HXM1200.1D

Diamond Audio HXM1200.1D

Diamond Audio DXM1200.1D

Diamond Audio DXM1200.1D

Diamond Audio HXM800.1D

Diamond Audio HXM800.1D

Account

Shopping help

Company

Everyday heroes

Brand stores

Useful links

Subscribe

Welcome to the Team!

Diamond Audio Marine Amplifiers for Boats

Trending Deals in Diamond Audio Marine Amplifiers for Boats

Shop the Category

Diamond Audio MICRO1V2

Diamond Audio MICRO1V2

Diamond Audio HXM800.2D

Diamond Audio HXM800.2D

Diamond Audio MICRO5V2

Diamond Audio MICRO5V2

Diamond Audio MICRO2V2

Diamond Audio MICRO2V2

Diamond Audio DXM600.2D

Diamond Audio DXM600.2D

Diamond Audio HXM800.4D

Diamond Audio HXM800.4D

Diamond Audio DXM800.4D

Diamond Audio DXM800.4D

Diamond Audio DXM1000.6D

Diamond Audio DXM1000.6D

Diamond Audio HXM1100.6D

Diamond Audio HXM1100.6D

Diamond Audio HXM1200.1D

Diamond Audio HXM1200.1D

Diamond Audio DXM1200.1D

Diamond Audio DXM1200.1D

Diamond Audio HXM800.1D

Diamond Audio HXM800.1D

Related Categories in Diamond Audio Marine Amplifiers for Boats

Didn't find your car?

Account

Shopping help

Company

Everyday heroes

Brand stores

Useful links