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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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DS18 NXL-X850.4D (Hydro) with NVX 8 Gauge Amp Kit

1600W Peak Class D HYDRO Series 4-Channel Marine and Powersports Amplifier

NXLX8504D_XKIT84 big
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DS18 NXL-X850.4D (Hydro) with NVX 8 Gauge Amp Kit

1600W Peak Class D HYDRO Series 4-Channel Marine and Powersports Amplifier

• 150 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 1600 watts
• IPX6 waterproof rating
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.
39
List price $767.94
-7% $715.94

In stock.

Add to Cart

• 150 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 1600 watts
• IPX6 waterproof rating
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

DS18 G1800.4D with Belva 4 Gauge Amp Kit

1800W Peak 860W RMS GEN-X Series Full-Range Class-D 4-Channel Amplifier

G18004D_BAK44 big
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DS18 G1800.4D with Belva 4 Gauge Amp Kit

1800W Peak 860W RMS GEN-X Series Full-Range Class-D 4-Channel Amplifier

• 150 watts x 4 channel @ 4 ohm
• 230 watts x 4 channel @ 2 ohm
• Bridged: 430 watts x 2 channel @ 4 ohm
• Total RMS Power: 860 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.
61
List price $367.94
-12% $322.94

In stock.

Add to Cart

• 150 watts x 4 channel @ 4 ohm
• 230 watts x 4 channel @ 2 ohm
• Bridged: 430 watts x 2 channel @ 4 ohm
• Total RMS Power: 860 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

DS18 ION1200.1D with Belva 4 Gauge Amp Kit

3600W Peak (1200W RMS) Class D ION Series Monoblock Car Amplifier with Bass Remote

ION12001D_BAK42 big
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DS18 ION1200.1D with Belva 4 Gauge Amp Kit

3600W Peak (1200W RMS) Class D ION Series Monoblock Car Amplifier with Bass Remote

• 400 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
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.
169
List price $359.94
-10% $324.44

In stock.

Add to Cart

• 400 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
• Includes Amplifier Wiring Kit

DS18 NXL-X1200.5D (Hydro) with NVX 4 Gauge Amp Kit

2800W Peak Class D HYDRO Series 5-Channel Marine and Powersports Amplifier

NXLX12005D_XKIT46 big
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DS18 NXL-X1200.5D (Hydro) with NVX 4 Gauge Amp Kit

2800W Peak Class D HYDRO Series 5-Channel Marine and Powersports Amplifier

• 150 watts x 4 channel + 350 watts @ 4 ohm
• 200 watts x 4 channel + 600 watts @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm + 600 watts @ 2 ohm
• Total RMS Power: 2800 watts
• IPX6 waterproof rating
• Class D 2 ohm Stable 5-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.
45
List price $899.94
-10% $812.59

In stock.

Add to Cart

• 150 watts x 4 channel + 350 watts @ 4 ohm
• 200 watts x 4 channel + 600 watts @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm + 600 watts @ 2 ohm
• Total RMS Power: 2800 watts
• IPX6 waterproof rating
• Class D 2 ohm Stable 5-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

DS18 NXL-N2 (Hydro) with NVX 8 Gauge Amp Kit

900W Peak Class D HYDRO Series 2-Channel Ultra-Compact Marine and Powersports Nano Amplifier

NXLN2_XKIT82 big
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DS18 NXL-N2 (Hydro) with NVX 8 Gauge Amp Kit

900W Peak Class D HYDRO Series 2-Channel Ultra-Compact Marine and Powersports Nano Amplifier

• 100 watts x 2 channel @ 4 ohm
• 150 watts x 2 channel @ 2 ohm
• Bridged: 300 watts x 1 channel @ 4 ohm
• Total Peak Power: 900 watts
• IP67 waterproof rating
• Class D 2 ohm Stable 2-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.
60
List price $431.94
-9% $391.94

In stock.

Add to Cart

• 100 watts x 2 channel @ 4 ohm
• 150 watts x 2 channel @ 2 ohm
• Bridged: 300 watts x 1 channel @ 4 ohm
• Total Peak Power: 900 watts
• IP67 waterproof rating
• Class D 2 ohm Stable 2-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

DS18 NXL-N1 (Hydro) with NVX 8 Gauge Amp Kit

1050W Peak Class D HYDRO Series Ultra Compact Monoblock Marine and Powersports Amplifier

NXLN1_XKIT82 big
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DS18 NXL-N1 (Hydro) with NVX 8 Gauge Amp Kit

1050W Peak Class D HYDRO Series Ultra Compact Monoblock Marine and Powersports Amplifier

• 140 watts x 1 channel @ 4 ohm
• 230 watts x 1 channel @ 2 ohm
• 350 watts x 1 channel @ 1 ohm
• Total Peak Power: 1050 watts
• IP67 waterproof rating
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.
60
List price $431.94
-9% $391.94

In stock.

Add to Cart

• 140 watts x 1 channel @ 4 ohm
• 230 watts x 1 channel @ 2 ohm
• 350 watts x 1 channel @ 1 ohm
• Total Peak Power: 1050 watts
• IP67 waterproof rating
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

DS18 G1000.4D with Belva 4 Gauge Amp Kit

1000 Peak (600W RMS) Class D Gen-X Series 4 Channel Car Amplifier

G10004D_BAK44 big
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DS18 G1000.4D with Belva 4 Gauge Amp Kit

1000 Peak (600W RMS) Class D Gen-X Series 4 Channel Car Amplifier

• 90 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 D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.
61
List price $259.94
-17% $214.94

In stock.

Add to Cart

• 90 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 D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

DS18 NXL-X900.6D with NVX 4 Gauge Amp Kit

3000W Peak Class D HYDRO Series 6-Channel Marine and Powersports Amplifier

NXLX9006D_XKIT46 big
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DS18 NXL-X900.6D with NVX 4 Gauge Amp Kit

3000W Peak Class D HYDRO Series 6-Channel Marine and Powersports Amplifier

• 150 watts x 6 channel @ 4 ohm
• 250 watts x 6 channel @ 2 ohm
• 500 watts x 3 channel @ 1 ohm
• IPX6 waterproof rating
• Class D 2 ohm Stable 6-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

shipping truck icon Free shipping in USA. Provide zip for delivery date.
45
List price $1019.94
-9% $932.59

In stock.

Add to Cart

• 150 watts x 6 channel @ 4 ohm
• 250 watts x 6 channel @ 2 ohm
• 500 watts x 3 channel @ 1 ohm
• IPX6 waterproof rating
• Class D 2 ohm Stable 6-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

DS18 SXE-2000.4D/RD (Open Box, Great)

2000W Peak (640W RMS) Class D SXE Series 4 Channel Car Amplifier

SXE-2000.4D/RD big
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DS18 SXE-2000.4D/RD (Open Box, Great)

2000W Peak (640W RMS) Class D SXE Series 4 Channel Car Amplifier

• @ 4 ohm
• @ 2 ohm
• Bridged: @ 4 ohm
• Total RMS Power:
• Class Stable Amplifier
• Red Brushed Aluminum Body Color

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List price $239.95
-10% $215.97

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• @ 4 ohm
• @ 2 ohm
• Bridged: @ 4 ohm
• Total RMS Power:
• Class Stable Amplifier
• Red Brushed Aluminum Body Color

DS18 SMD-8500.1D (Open Box, Great)

8500W RMS Class D SMD Series Monoblock Car Amplifier with Bass Remote, VM-1 Voltmeter, and Digital LED Lights

SMD-8500.1D big
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DS18 SMD-8500.1D (Open Box, Great)

8500W RMS Class D SMD Series Monoblock Car Amplifier with Bass Remote, VM-1 Voltmeter, and Digital LED Lights

• 3300 watts x 1 channel @ 4 ohm
• 5700 watts x 1 channel @ 2 ohm
• 8500 watts x 1 channel @ 1 ohm
• Total RMS Power: 8500 watts
• Class D 1 ohm Stable Monoblock Amplifier
• Wired bass level remote control included
• IR Remote Control for LED patterns and colors included

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List price $1699.95
-15% $1,444.96

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DS18 SMD-300.4AB (Open Box, Great)

1200W RMS Class AB SMD Series 4 Channel Car Amplifier with Bass Remote

SMD-300.4AB big
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DS18 SMD-300.4AB (Open Box, Great)

1200W RMS Class AB SMD Series 4 Channel Car Amplifier with Bass Remote

• 200 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 1200 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

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List price $574.95
-5% $546.24

In stock

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• 200 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 1200 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

DS18 SMD-5000.1D (Open Box, Great)

5000W RMS Class D SMD Series Monoblock Car Amplifier with Bass Remote, VM-1 Voltmeter, and Digital LED Lights

SMD-5000.1D big
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DS18 SMD-5000.1D (Open Box, Great)

5000W RMS Class D SMD Series Monoblock Car Amplifier with Bass Remote, VM-1 Voltmeter, and Digital LED Lights

• @ 4 ohm
• @ 2 ohm
• @ 1 ohm
• Total RMS Power:
• Class Stable Monoblock Amplifier

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1
List price $1299.95
-10% $1,169.95

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