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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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Precision Power (PPI) MAA4.400

600W RMS Class D ATOM MINI Series 4-Channel Motorcycle Amplifier for select 1998-2023 vehicles from Harley Davidson

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Precision Power (PPI) MAA4.400

600W RMS Class D ATOM MINI Series 4-Channel Motorcycle Amplifier for select 1998-2023 vehicles from Harley Davidson

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Precision Power A1000.5D

950W RMS Class D ATOM Series 5-Channel Full Range Car Amplifier with Bass Remote

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Precision Power A1000.5D

950W RMS Class D ATOM Series 5-Channel Full Range Car Amplifier with Bass Remote

• 60 watts x 4 channel + 250 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 450 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 450 watts x 1 channel @ 2 ohm
• Total RMS Power: 850 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

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$199.99

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• 60 watts x 4 channel + 250 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 450 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 450 watts x 1 channel @ 2 ohm
• Total RMS Power: 850 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

Precision Power (PPI) i350.2

350W RMS Class D iON Series 2-Channel Car Amplifier

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Precision Power (PPI) i350.2

350W RMS Class D iON Series 2-Channel Car Amplifier

• 115 watts x 2 channel @ 4 ohm
• 175 watts x 2 channel @ 2 ohm
• Bridged: 350 watts x 1 channel @ 4 ohm
• Total RMS Power: 350 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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Precision Power (PPI) i1000.4

1000W RMS Class D iON Series 4-Channel Car Amplifier

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Precision Power (PPI) i1000.4

1000W RMS Class D iON Series 4-Channel Car Amplifier

• 140 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

FREE Amp Kit at Checkout!
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Precision Power (PPI) PC700.4D

700W RMS Class D Vertical PowerClass Series 4-Channel Full Range Car Amplifier with Bass Remote

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Precision Power (PPI) PC700.4D

700W RMS Class D Vertical PowerClass Series 4-Channel Full Range Car Amplifier with Bass Remote

• 120 watts x 4 channel @ 4 ohm
• 175 watts x 4 channel @ 2 ohm
• Bridged: 350 watts x 2 channel @ 4 ohm
• Total RMS Power: 700 watts
• Class D 2 ohm Stable 4-Channel Amplifier

FREE Amp Kit at Checkout!
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Precision Power (PPI) i520.4B

520W RMS Class-D iON Series 4 Channel Car Amplifier with Bluetooth

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Precision Power (PPI) i520.4B

520W RMS Class-D iON Series 4 Channel Car Amplifier with Bluetooth

• 100 watts x 4 channel @ 4 ohm
• 130 watts x 4 channel @ 2 ohm
• Bridged: 260 watts x 2 channel @ 4 ohm
• Total RMS Power: 520 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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$179.99

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Precision Power (PPI) MPA1200.1D

1200W RMS Class D ATOM Series Monoblock Water-Resistant Amplifier with Bass Knob

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Precision Power (PPI) MPA1200.1D

1200W RMS Class D ATOM Series Monoblock Water-Resistant Amplifier with Bass Knob

• 400 watts x 1 channel @ 4 ohm
• 700 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

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• 400 watts x 1 channel @ 4 ohm
• 700 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

Precision Power (PPI) i640.5

670W RMS Class D iON Series 5-Channel Car Amplifier

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Precision Power (PPI) i640.5

670W RMS Class D iON Series 5-Channel Car Amplifier

• 60 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 80 watts x 4 channel + 350 watts x 1 channel @ 2 ohm
• Bridged: 160 watts x 2 channel @ 4 ohm + 350 watts x 1 channel @ 2 ohm
• Total RMS Power: 670 watts
• Class D 2 ohm Stable 5-Channel Amplifier

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Precision Power (PPI) A700.4D

700W RMS Class D ATOM Series 4-Channel Full Range Car Amplifier

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Precision Power (PPI) A700.4D

700W RMS Class D ATOM Series 4-Channel Full Range Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 175 watts x 4 channel @ 2 ohm
• Bridged: 350 watts x 2 channel @ 4 ohm
• Total RMS Power: 700 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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FREE shipping to OH. Delivers Nov. 29 - Dec. 6
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Precision Power (PPI) A400.4D

400W RMS Class D ATOM Series 4-Channel Full Range Car Amplifier

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Precision Power (PPI) A400.4D

400W RMS Class D ATOM Series 4-Channel Full Range Car Amplifier

• 60 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 D 2 ohm Stable 4-Channel-Channel Amplifier

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Precision Power E.5V

5-Band Parametric Equalizer with LED Voltage Display

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Precision Power E.5V

5-Band Parametric Equalizer with LED Voltage Display

• 5 band-Band Parametric Equalizer
• 3 Sets of preamp outputs (front, rear, and subwoofer)
• 8.5 volts Max preamp outputs
• Subwoofer frequency and level control
• Gold-plated RCA level inputs

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• 5 band-Band Parametric Equalizer
• 3 Sets of preamp outputs (front, rear, and subwoofer)
• 8.5 volts Max preamp outputs
• Subwoofer frequency and level control
• Gold-plated RCA level inputs

Precision Power TRAX1.1500D

1500W Peak (750W RMS) Class D Trax Series Monoblock Amplifier with Bass Remote

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Precision Power TRAX1.1500D

1500W Peak (750W RMS) Class D Trax Series Monoblock Amplifier with Bass Remote

• 500 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable Monoblock Amplifier

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Precision Power TM1.6000D

6000W Peak Class D Trax Micro Series Monoblock Amplifier with Bass Remote

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Precision Power TM1.6000D

6000W Peak Class D Trax Micro Series Monoblock Amplifier with Bass Remote

• Total Peak Power: 6000 watts
• Class D Stable Monoblock Amplifier
• Wired bass level remote control included
• Includes speaker-level inputs

FREE Amp Kit at Checkout!
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Precision Power BP.80MX

Digital Bass Reconstruction Processor in Mexican Edition with Remote Control

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Precision Power BP.80MX

Digital Bass Reconstruction Processor in Mexican Edition with Remote Control

• Digital Bass Reconstruction Processor in Mexican Edition
• LED max bass control indicators
• Selectable subsonic filter
• Dash mount remote control included

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• Digital Bass Reconstruction Processor in Mexican Edition
• LED max bass control indicators
• Selectable subsonic filter
• Dash mount remote control included

Precision Power TM1.4000D

4000W Peak Class D Trax Micro Series Monoblock Amplifier with Bass Remote

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Precision Power TM1.4000D

4000W Peak Class D Trax Micro Series Monoblock Amplifier with Bass Remote

• Total Peak Power: 4000 watts
• Class D Stable Monoblock Amplifier
• Wired bass level remote control included
• Includes speaker-level inputs

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FREE shipping to OH. Delivers Nov. 29 - Dec. 6

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$114.99

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Precision Power (PPI) MPA1000.5D

1000W RMS Class D ATOM Series 5-Channel Water-Resistant Amplifier with Bass Knob

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Precision Power (PPI) MPA1000.5D

1000W RMS Class D ATOM Series 5-Channel Water-Resistant Amplifier with Bass Knob

• 60 watts x 4 channel + 250 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel + 450 watts x 2 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 450 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 5-Channel Amplifier

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FREE shipping to OH. Delivers Nov. 29 - Dec. 6
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$259.99

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Precision Power (PPI) PC500.4D

500W RMS Class D Vertical PowerClass Series 4-Channel Car Amplifier

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Precision Power (PPI) PC500.4D

500W RMS Class D Vertical PowerClass Series 4-Channel Car Amplifier

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

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$189.99

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Precision Power (PPI) MPA700.4D

700W RMS Class D ATOM Series 4-Channel Water-Resistant Amplifier

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Precision Power (PPI) MPA700.4D

700W RMS Class D ATOM Series 4-Channel Water-Resistant Amplifier

• 100 watts x 4 channel @ 4 ohm
• 175 watts x 4 channel @ 2 ohm
• Bridged: 350 watts x 2 channel @ 4 ohm
• Total RMS Power: 700 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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FREE shipping to OH. Delivers Nov. 26 - Nov. 28
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$209.99

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• 100 watts x 4 channel @ 4 ohm
• 175 watts x 4 channel @ 2 ohm
• Bridged: 350 watts x 2 channel @ 4 ohm
• Total RMS Power: 700 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Precision Power NTA1000.1

1600W Peak Class D Monoblock Subwoofer Car Amplifier with Dash-Mounted Gain Control Module

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Precision Power NTA1000.1

1600W Peak Class D Monoblock Subwoofer Car Amplifier with Dash-Mounted Gain Control Module

• 400 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• Total Peak Power: 1600 watts
• Class D 2 ohm Stable Monoblock Amplifier

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$109.99

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Precision Power NTA1000.4

1000W Peak Class D 4-Channel Full Range Car Amplifier

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Precision Power NTA1000.4

1000W Peak Class D 4-Channel Full Range Car Amplifier

• 150 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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FREE shipping to OH. Delivers Nov. 29 - Dec. 6

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$99.99

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