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2019 BMW X2

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Single, 1-channel monoblock sub amplifiers for when you add a sub

Overview Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Amplifiers for Powering a Sub for 2019 BMW X2

Some vehicles require an amp bypass module, a line-output converter like the NVX XLCA2 or AudioControl LC2i, or a DSP to integrate with your factory radio and avoid bass roll-off. Bass roll-off occurs when a factory radio's crossover is designed only for the original equipment speakers, resulting in a not complete signal being sent to your new aftermarket amp.

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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.
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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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Sundown Audio SAEv.4-2000.1D

2000W RMS Class D SAE Series Monoblock Car Amplifier with Bass Remote (SAEv.4-2000D)

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Sundown Audio SAEv.4-2000.1D

2000W RMS Class D SAE Series Monoblock Car Amplifier with Bass Remote (SAEv.4-2000D)

• 875 watts x 1 channel @ 4 ohm
• 1300 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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• 875 watts x 1 channel @ 4 ohm
• 1300 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Soundstream MR1.2000D

2000 W Peak (1000W RMS) Class D Monoblock 1-Ohm Stable Marine Amplifier with Remote Bass Knob Included

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Soundstream MR1.2000D

2000 W Peak (1000W RMS) Class D Monoblock 1-Ohm Stable Marine Amplifier with Remote Bass Knob Included

• 400 Watts RMS x 1 @ 4 ohm
• 600 Watts RMS x 1 @ 2 ohm
• 1000 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 2000 Watts
• Variable Bass Boost: 0 to +12 dB bass boost
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation

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• 400 Watts RMS x 1 @ 4 ohm
• 600 Watts RMS x 1 @ 2 ohm
• 1000 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 2000 Watts
• Variable Bass Boost: 0 to +12 dB bass boost
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation

Belva BXD3K (Open Box, Good)

3000W Peak BX-Series Class-D Monoblock Car Audio Amplifier with Bass Remote

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Belva BXD3K (Open Box, Good)

3000W Peak BX-Series Class-D Monoblock Car Audio Amplifier with Bass Remote

• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• Total Peak Power: 3000 watts
• Class D 1 ohm Stable Monoblock

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• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• Total Peak Power: 3000 watts
• Class D 1 ohm Stable Monoblock

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Sundown Audio SAEv4-3000.1D

3000W RMS Class D SAE Series Monoblock Car Amplifier with Bass Remote (SAEv.4-3000D)

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Sundown Audio SAEv4-3000.1D

3000W RMS Class D SAE Series Monoblock Car Amplifier with Bass Remote (SAEv.4-3000D)

• 1300 watts x 1 channel @ 4 ohm
• 2000 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• Total RMS Power: 3000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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NVX XKIT02

NVX XKIT02

$179.99

$125.99

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• 1300 watts x 1 channel @ 4 ohm
• 2000 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• Total RMS Power: 3000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Sundown Audio SALT-3

3000W RMS Class D SALT Series Monoblock Car Amplifier with Bass Remote (A-SALT3)

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Sundown Audio SALT-3

3000W RMS Class D SALT Series Monoblock Car Amplifier with Bass Remote (A-SALT3)

• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• 6000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 3000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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NVX XKIT02

NVX XKIT02

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• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• 6000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 3000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SALT-1.5

1500W RMS Class D SALT Series Monoblock Car Amplifier with Bass Remote (A-SALT1.5)

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Sundown Audio SALT-1.5

1500W RMS Class D SALT Series Monoblock Car Amplifier with Bass Remote (A-SALT1.5)

• 400 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• 3000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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• 400 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• 3000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

MB Quart NA2-400.1

400W Peak Class D Nautic Series Monoblock Marine and Powersports Amplifier

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MB Quart NA2-400.1

400W Peak Class D Nautic Series Monoblock Marine and Powersports Amplifier

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

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

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American Bass VFL Stealth 4500.1 (VFLSTEALTH-4500.1D)

4500W Peak (2250W RMS) Class D VFL Stealth Series Monoblock Car Amplifier (with Bass Remote)

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American Bass VFL Stealth 4500.1 (VFLSTEALTH-4500.1D)

4500W Peak (2250W RMS) Class D VFL Stealth Series Monoblock Car Amplifier (with Bass Remote)

• 1875 watts x 1 channel @ 4 ohm
• 1050 watts x 1 channel @ 2 ohm
• Total RMS Power: 1875 watts
• Class D 1 ohm Stable 1 - Mono Amplifier

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NVX XKIT02

NVX XKIT02

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• 1875 watts x 1 channel @ 4 ohm
• 1050 watts x 1 channel @ 2 ohm
• Total RMS Power: 1875 watts
• Class D 1 ohm Stable 1 - Mono Amplifier

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Sundown Audio SALT-4

4000W RMS Class D SALT Series Monoblock Car Amplifier with Bass Remote (A-SALT4)

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Sundown Audio SALT-4

4000W RMS Class D SALT Series Monoblock Car Amplifier with Bass Remote (A-SALT4)

• 1000 watts x 1 channel @ 4 ohm
• 2000 watts x 1 channel @ 2 ohm
• 4000 watts x 1 channel @ 1 ohm
• 8000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 4000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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NVX XKIT02

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• 1000 watts x 1 channel @ 4 ohm
• 2000 watts x 1 channel @ 2 ohm
• 4000 watts x 1 channel @ 1 ohm
• 8000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 4000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Sundown Audio SIA-8000D

8000W RMS Class D SIA Series Monoblock Car Amplifier

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Sundown Audio SIA-8000D

8000W RMS Class D SIA Series Monoblock Car Amplifier

• 5600 watts x 1 channel @ 4 ohm
• 7700 watts x 1 channel @ 2 ohm
• 8000 watts x 1 channel @ 1 ohm
• Total RMS Power: 8000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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NVX XKIT02

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• 5600 watts x 1 channel @ 4 ohm
• 7700 watts x 1 channel @ 2 ohm
• 8000 watts x 1 channel @ 1 ohm
• Total RMS Power: 8000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Deaf Bonce Apocalypse ASA 4000.1

4000W RMS Class D Apocalypse Sport Series Monoblock Car Amplifier

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Deaf Bonce Apocalypse ASA 4000.1

4000W RMS Class D Apocalypse Sport Series Monoblock Car Amplifier

• 1530 watts x 1 channel @ 4 ohm
• 2620 watts x 1 channel @ 2 ohm
• 4000 watts x 1 channel @ 1 ohm
• Bridged: 8100 watts @ 2 ohm
• Total RMS Power: 4000 watts
• Class D 1 ohm Stable Monoblock Subwoofer Amplifier

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$749.90
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• 1530 watts x 1 channel @ 4 ohm
• 2620 watts x 1 channel @ 2 ohm
• 4000 watts x 1 channel @ 1 ohm
• Bridged: 8100 watts @ 2 ohm
• Total RMS Power: 4000 watts
• Class D 1 ohm Stable Monoblock Subwoofer Amplifier

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Sundown Audio SAEv4-5000D

5000W RMS Class D SAEv4 Series Monoblock Car Amplifier with Bass Remote

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Sundown Audio SAEv4-5000D

5000W RMS Class D SAEv4 Series Monoblock Car Amplifier with Bass Remote

• 2200 watts x 1 channel @ 4 ohm
• 3300 watts x 1 channel @ 2 ohm
• 5000 watts x 1 channel @ 1 ohm
• Total RMS Power: 5000 watts
• Class D 4 ohm Stable Monoblock Amplifier

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• 2200 watts x 1 channel @ 4 ohm
• 3300 watts x 1 channel @ 2 ohm
• 5000 watts x 1 channel @ 1 ohm
• Total RMS Power: 5000 watts
• Class D 4 ohm Stable Monoblock Amplifier

Limited time!

JL Audio RD500/1 (Open Box, Great)

500W RMS Class D RD Series Monoblock Car Amplifier

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JL Audio RD500/1 (Open Box, Great)

500W RMS Class D RD Series Monoblock Car Amplifier

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

10% Off Open Box!

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

Kicker 43CXA12001 with Amplifier Wiring Kit

2400W Peak (1200W RMS) CX Series Monoblock Class D Subwoofer Car Amplifier Package

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Kicker 43CXA12001 with Amplifier Wiring Kit

2400W Peak (1200W RMS) CX Series Monoblock Class D Subwoofer Car Amplifier Package

• 1200 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 2400 Watts
• Preamp RCA outputs to daisy chain multiple amps
• Variable Low-Pass Crossover: 50 - 200Hz 12dB/octave
• Variable Bass Boost: 0 to +12 dB bass boost at 40 Hz
• Dimensions: 7-3/16"W x 8-1/8"L x 2-3/8"H • Includes Amplifier Wiring Kit

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• 1200 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 2400 Watts
• Preamp RCA outputs to daisy chain multiple amps
• Variable Low-Pass Crossover: 50 - 200Hz 12dB/octave
• Variable Bass Boost: 0 to +12 dB bass boost at 40 Hz
• Dimensions: 7-3/16"W x 8-1/8"L x 2-3/8"H • Includes Amplifier Wiring Kit

Cerwin Vega S91000.1D + Free $150 Gift Card

Stroker Series 1000W RMS Class-D Monoblock Car Audio Amplifier

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Cerwin Vega S91000.1D + Free $150 Gift Card

Stroker Series 1000W RMS Class-D Monoblock Car Audio Amplifier

• Cerwin Vega Stroker Series Monoblock Car Amplifier
• Crossover 35Hz – 350Hz
• Frequency Response: 10Hz – 35KHz
• Remote Bass Knob Included
• Amplifier Class: Class-D

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List price $809.99
-32% $549.99
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• Cerwin Vega Stroker Series Monoblock Car Amplifier
• Crossover 35Hz – 350Hz
• Frequency Response: 10Hz – 35KHz
• Remote Bass Knob Included
• Amplifier Class: Class-D

Alpine M-A120M

1200W RMS Class D Monoblock Marine Amplifier

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Alpine M-A120M

1200W RMS Class D Monoblock Marine Amplifier

• 1200 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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List price $1000.00
-10% $899.95
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• 1200 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

Kicker CXA1200.1 (46CXA12001T) with NVX 4 Gauge Amp Kit

1200W RMS Class-D CX-Series Monoblock Car Amplifier

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Kicker CXA1200.1 (46CXA12001T) with NVX 4 Gauge Amp Kit

1200W RMS Class-D CX-Series Monoblock Car Amplifier

• 600 watts x 1 channel @ 4 ohm
• 1200 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

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List price $580.97
-17% $482.87
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• 600 watts x 1 channel @ 4 ohm
• 1200 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

Rockford Fosgate Power T1500-1BDCP + Rockford Fosgate RFK4I 4 Gauge 2-Ch Amp Kit

1500W RMS Constant Power Series Class BD Monoblock Amplifier

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Rockford Fosgate Power T1500-1BDCP + Rockford Fosgate RFK4I 4 Gauge 2-Ch Amp Kit

1500W RMS Constant Power Series Class BD Monoblock Amplifier

• RMS: 1000W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
• Total RMS Power: 1500W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB at 45 Hz
• Ultra Efficient Class bD Circuitry
• Dimensions: 14-15/16"L x 8-3/16"W x 2-3/16"H
• Includes Rockford Fosgate RFK4I 4 Gauge 2-Ch Amp Kit

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• RMS: 1000W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
• Total RMS Power: 1500W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB at 45 Hz
• Ultra Efficient Class bD Circuitry
• Dimensions: 14-15/16"L x 8-3/16"W x 2-3/16"H
• Includes Rockford Fosgate RFK4I 4 Gauge 2-Ch Amp Kit

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DS18 SMD-3000.1D with NVX 1/0 Gauge Amp Kit

3000W RMS Class D SMD Series Monoblock Car Amplifier with Bass Remote

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DS18 SMD-3000.1D with NVX 1/0 Gauge Amp Kit

3000W RMS Class D SMD Series Monoblock Car Amplifier with Bass Remote

• 1300 watts x 1 channel @ 4 ohm
• 2200 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• Total RMS Power: 3000 watts
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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List price $1027.94
-12% $901.04
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• 1300 watts x 1 channel @ 4 ohm
• 2200 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• Total RMS Power: 3000 watts
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

Rockford Fosgate Power T1500-1BDCP with Amplifier Wiring Kit

1500W RMS Constant Power Series Monoblock Amplifier + NVX 4 Gauge Amp Wiring Kit

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Rockford Fosgate Power T1500-1BDCP with Amplifier Wiring Kit

1500W RMS Constant Power Series Monoblock Amplifier + NVX 4 Gauge Amp Wiring Kit

• RMS: 1000W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
• Total RMS Power: 1500W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB at 45 Hz
• Ultra Efficient Class bD Circuitry
• Dimensions: 14-15/16"L x 8-3/16"W x 2-3/16"H

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List price $913.98
-16% $769.99
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• RMS: 1000W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
• Total RMS Power: 1500W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB at 45 Hz
• Ultra Efficient Class bD Circuitry
• Dimensions: 14-15/16"L x 8-3/16"W x 2-3/16"H

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    FAQ for Monoblock Sub Amplifiers in 2019 X2

    Q: Can I upgrade or change the Monoblock Sub Amplifiers in 2019 BMW X2?

    A: Yes this page includes all the best Monoblock Sub Amplifiers that work in your X2.

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