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  1. Home
  2. Rockford Fosgate Store
  3. Rockford Fosgate Motorcycle & Harley-Davidson Audio
  4. Rockford Fosgate Motorcycle Amplifiers

Rockford Fosgate Motorcycle Amplifiers

Premium motorcycle amplifiers from Rockford Fosgate for high-quality audio on two wheels.

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Number of Channels
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.
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.
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.

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.
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.
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.
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
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.
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.
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.
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.
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Rockford Fosgate Power Marine TM400X4ad

400W Power Series Class-AD Marine 4-Channel Amplifier

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Rockford Fosgate Power Marine TM400X4ad

400W Power Series Class-AD Marine 4-Channel Amplifier

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

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FREE 1-day shipping to OH. Get it Wed, Nov. 19
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VIP Product Get $63.00 in rewards to spend later

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

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$629.99

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Only 2 Left!

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Like New from: $579.97

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

Rockford Fosgate M5-800X4

400W RMS M5-Series Class-AD 4-channel Marine Amplifier

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Rockford Fosgate M5-800X4

400W RMS M5-Series Class-AD 4-channel Marine Amplifier

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

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FREE 1-day shipping to OH. Get it Wed, Nov. 19
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VIP Product Get $69.00 in rewards to spend later

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Rockford Fosgate Punch Marine PM600X4

600W RMS Punch Series Class-AB 4-Channel Marine Amplifier

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Rockford Fosgate Punch Marine PM600X4

600W RMS Punch Series Class-AB 4-Channel Marine Amplifier

• 75 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

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FREE 1-day shipping to OH. Get it Wed, Nov. 19
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VIP Product Get $65.00 in rewards to spend later

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$649.99

In stock

Only 2 Left!

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Like New from: $519.99

Rockford Fosgate M5-1000X1

1000W Peak (750W RMS) Class BD M5 Series Monoblock Marine Amplifier

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Rockford Fosgate M5-1000X1

1000W Peak (750W RMS) Class BD M5 Series Monoblock Marine Amplifier

• 500 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm (Dynamic Power)
• Total RMS Power: 750 watts
• Class BD 1 ohm Stable Monoblock Amplifier

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FREE 1-day shipping to OH. Get it Wed, Nov. 19
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VIP Product Get $69.00 in rewards to spend later

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$689.99

In stock

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• 500 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm (Dynamic Power)
• Total RMS Power: 750 watts
• Class BD 1 ohm Stable Monoblock Amplifier

Rockford Fosgate Punch Marine PM100X1K

300W Peak (100W RMS) Punch Series BTL Monoblock Marine Amplifiers (Pair)

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Rockford Fosgate Punch Marine PM100X1K

300W Peak (100W RMS) Punch Series BTL Monoblock Marine Amplifiers (Pair)

• 60 watts x 1 channel @ 4 ohm
• 100 watts x 1 channel @ 2 ohm
• Total RMS Power: 100 watts
• 2 ohm Stable Monoblock Amplifiers
• Sold in pairs (left and right amplifier)

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$309.99

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Only 1 Left!

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• 60 watts x 1 channel @ 4 ohm
• 100 watts x 1 channel @ 2 ohm
• Total RMS Power: 100 watts
• 2 ohm Stable Monoblock Amplifiers
• Sold in pairs (left and right amplifier)

Rockford Fosgate Punch Marine PM300X2

300W RMS Punch Series Class-A/B 2-Channel Marine Amplifier

PM300X2 big
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Rockford Fosgate Punch Marine PM300X2

300W RMS Punch Series Class-A/B 2-Channel Marine Amplifier

• 100 watts x 2 channel @ 4 ohm
• 150 watts x 2 channel @ 2 ohm
• Bridged: 300 watts x 1 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class A/B 2 ohm Stable 2-Channel-Channel Amplifier

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FREE 1-day shipping to OH. Get it Wed, Nov. 19
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VIP Product Get $35.00 in rewards to spend later

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

$349.99

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Rockford Fosgate T1000X5ad

1000W RMS Class AD/BD Power Series 5 Channel Car Amplifier

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Rockford Fosgate T1000X5ad

1000W RMS Class AD/BD Power Series 5 Channel Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class AD / BD 2 ohm Stable 5-Channel Amplifier

FREE Amp Kit at Checkout!
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FREE 1-day shipping to OH. Get it Wed, Nov. 19
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VIP Product Get $95.00 in rewards to spend later

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Used from: $949.99 Like New from: $902.49

Rockford Fosgate Punch PM600X4 - New (Damaged Packaging, Product A+)

600W RMS Punch Series Class-AB 4-Channel Marine Amplifier

PM600X4 big
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Rockford Fosgate Punch PM600X4 - New (Damaged Packaging, Product A+)

600W RMS Punch Series Class-AB 4-Channel Marine Amplifier

• 75 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

shipping truck icon
FREE 1-day shipping to OH. Get it Wed, Nov. 19

empty

Universal Fitment Icon Universal-fit, works with nearly all vehicles.

Was $649.99 Details
$519.99

In stock

Only 2 Left!

Add to Cart

• 75 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Rockford Fosgate TM400X4ad - New (Damaged Packaging, Product A+)

400W Power Series Class-AD Marine 4-Channel Amplifier

TM400X4ad big
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate TM400X4ad - New (Damaged Packaging, Product A+)

400W Power Series Class-AD Marine 4-Channel Amplifier

• RMS: 100 watts x 4 chan. @ 4 ohm, 100 watts x 4 chan. @ 2 ohm, 200 watts x 2 chan. @ 4 ohm Bridged
• CEA-2006 Compliant Amplifier
• Rockford Fosgate 4/2 Ohm muti-impedance Constant Power technology
•Differential inputs with high level auto turn-on feature
• C.L.E.A.N. input/output clip detection and indicator LEDs
• 4-layer 2oz. copper circuit board with 2-part epoxy coating

shipping truck icon
FREE 1-day shipping to OH. Get it Wed, Nov. 19

empty

Universal Fitment Icon Universal-fit, works with nearly all vehicles.

4
Was $629.99 Details
$579.97

In stock

Only 2 Left!

Add to Cart

• RMS: 100 watts x 4 chan. @ 4 ohm, 100 watts x 4 chan. @ 2 ohm, 200 watts x 2 chan. @ 4 ohm Bridged
• CEA-2006 Compliant Amplifier
• Rockford Fosgate 4/2 Ohm muti-impedance Constant Power technology
•Differential inputs with high level auto turn-on feature
• C.L.E.A.N. input/output clip detection and indicator LEDs
• 4-layer 2oz. copper circuit board with 2-part epoxy coating

Rockford Fosgate T1000X5AD (Open Box, Like New)

1000W RMS Class AD/BD Power Series 5 Channel Car Amplifier

T1000X5ad big
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Rockford Fosgate T1000X5AD (Open Box, Like New)

1000W RMS Class AD/BD Power Series 5 Channel Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class AD / BD 2 ohm Stable 5-Channel Amplifier

shipping truck icon
FREE 1-day shipping to OH. Get it Wed, Nov. 19

empty

Universal Fitment Icon Universal-fit, works with nearly all vehicles.

3
Was $949.99 Details
$902.49

In stock

Only 1 Left!

Add to Cart

• 100 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class AD / BD 2 ohm Stable 5-Channel Amplifier

Rockford Fosgate T1000X5ad (Open Box, Great)

1000W RMS Class AD/BD Power Series 5 Channel Car Amplifier

T1000X5ad big
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate T1000X5ad (Open Box, Great)

1000W RMS Class AD/BD Power Series 5 Channel Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class AD / BD 2 ohm Stable 5-Channel Amplifier

shipping truck icon
FREE 1-day shipping to OH. Get it Wed, Nov. 19

empty

Universal Fitment Icon Universal-fit, works with nearly all vehicles.

3
$949.99

In stock

Add to Cart

• 100 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class AD / BD 2 ohm Stable 5-Channel Amplifier

 
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