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1982 BMW 733i

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

Overview Upgrade your Stereo 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 1982 BMW 733i

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.
Power Series (17)
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Alpha Series (1)
AP Series (1)
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COLOSSUS Series (1)
Compact Mean Machine Series (1)
CVPM Series (1)
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DPower Series (1)
DRVN Series (1)
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EV Series (1)
Excelon Motorsports Series (1)
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M5 Series (1)
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Stealth Bomber Series (1)
Street Reference (1)
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X Series (1)
XFL Series (1)
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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Earthquake Sound Mini D1000

1000W Peak (600W RMS) Class D MiNi Series Monoblock Car Amplifier

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Earthquake Sound Mini D1000

1000W Peak (600W RMS) Class D MiNi Series Monoblock Car Amplifier

• 180 watts x 1 channel @ 4 ohm
• 360 watts x 1 channel @ 2 ohm
• 600 watts x 1 channel @ 1 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Rockford Fosgate Power T1000-1bdCP + NVX XKIT42 4 Gauge Amp Wiring Kit

1000W RMS Power Series Constant Power Monoblock Class BD Amplifier

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Rockford Fosgate Power T1000-1bdCP + NVX XKIT42 4 Gauge Amp Wiring Kit

1000W RMS Power Series Constant Power Monoblock Class BD Amplifier

• RMS: 700W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total RMS Power: 1000W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB at 45 Hz
• Ultra Efficient Class bD Circuitry
• Dimensions: 13-11/16"L x 8-3/16"W x 2-3/16"H
• Includes NVX XKIT42 4 Gauge Amp Wiring Kit

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• RMS: 700W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total RMS Power: 1000W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB at 45 Hz
• Ultra Efficient Class bD Circuitry
• Dimensions: 13-11/16"L x 8-3/16"W x 2-3/16"H
• Includes NVX XKIT42 4 Gauge Amp Wiring Kit

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DS18 H-KO8

8000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote

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DS18 H-KO8

8000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote

• 2500 watts x 1 channel @ 4 ohm
• 4800 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 AAK-6000.1D

6000W RMS Class D Apocalypse Series Monoblock Car Amplifier

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Deaf Bonce Apocalypse AAK-6000.1D

6000W RMS Class D Apocalypse Series Monoblock Car Amplifier

• 1700 watts x 1 channel @ 4 ohm
• 3100 watts x 1 channel @ 2 ohm
• Total RMS Power: 6000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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American Bass Godfather 1500.1D (GF-1500.1D)

1508W RMS Class D Godfather Series Monoblock Car Amplifier (with Bass Remote)

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American Bass Godfather 1500.1D (GF-1500.1D)

1508W RMS Class D Godfather Series Monoblock Car Amplifier (with Bass Remote)

• 670 watts x 1 channel @ 4 ohm
• 1120 watts x 1 channel @ 2 ohm
• Total RMS Power: 1508 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Deaf Bonce Apocalypse ATOM 9.5K PRO

9500W RMS Class D Apocalypse Atom Pro Series Monoblock Car Amplifier with Bass Remote

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Deaf Bonce Apocalypse ATOM 9.5K PRO

9500W RMS Class D Apocalypse Atom Pro Series Monoblock Car Amplifier with Bass Remote

• 3420 watts x 1 channel @ 4 ohm
• 5650 watts x 1 channel @ 2 ohm
• 9500 watts x 1 channel @ 1 ohm
• Total RMS Power: 9500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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DC Audio 7.5k

7500W Peak Class D Competition Series Monoblock Car Amplifier (with Bass Remote)

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DC Audio 7.5k

7500W Peak Class D Competition Series Monoblock Car Amplifier (with Bass Remote)

• 2000 watts x 1 channel @ 4 ohm
• 4400 watts x 1 channel @ 2 ohm
• Total RMS Power: 7500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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NVX XKIT02

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DS18 H-KO5/RD

5000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote and Voltmeter (Red)

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DS18 H-KO5/RD

5000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote and Voltmeter (Red)

• 2200 watts x 1 channel @ 4 ohm
• 3500 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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List price $1439.99
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NVX XKIT02

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JL Audio MHD750/1

750W RMS Class D MHD Series Monoblock Marine Amplifier

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JL Audio MHD750/1

750W RMS Class D MHD Series Monoblock Marine Amplifier

• 750 watts x 1 channel @ from 1.5 to 4 ohm
• Total RMS Power: 750 watts
• Class D 1.5 ohm Stable Monoblock Amplifier

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Cerwin-Vega CVPM1000.1D

1000W Peak (500W RMS) Class D CVPM Series Monoblock Car Amplifier with Bass Remote

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Cerwin-Vega CVPM1000.1D

1000W Peak (500W RMS) Class D CVPM Series Monoblock Car Amplifier with Bass Remote

• 310 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

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DS18 SMD-5000.1D

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

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DS18 SMD-5000.1D

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

• 2000 watts x 1 channel @ 4 ohm
• 3500 watts x 1 channel @ 2 ohm
• 5000 watts x 1 channel @ 1 ohm
• Total RMS Power: 5000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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JL Audio MV1000/1

1000W RMS MVi Series Marine Class-D Monoblock Marine Amplifier

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JL Audio MV1000/1

1000W RMS MVi Series Marine Class-D Monoblock Marine Amplifier

• 600 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

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• 600 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

MB Quart FA2-2000.1

2000W RMS Class D Formula Series Monoblock Car Amplifier with Bass Remote

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MB Quart FA2-2000.1

2000W RMS Class D Formula Series Monoblock Car Amplifier with Bass Remote

• 500 watts x 1 channel @ 4 ohm
• 1000 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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NVX NDA15001 (Open Box, Great)

3000W Peak (1500W RMS) N-Series Class-D 1-Ohm Stable Monoblock Amplifier with Remote Bass Knob

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NVX NDA15001 (Open Box, Great)

3000W Peak (1500W RMS) N-Series Class-D 1-Ohm Stable Monoblock Amplifier with Remote Bass Knob

• 670 watts x 1 channel @ 4 ohm
• 1100 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Wet Sounds STX MICRO-1

600W Peak Class D Stealth STX Series Monoblock Marine and Powersports Amplifier

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Wet Sounds STX MICRO-1

600W Peak Class D Stealth STX Series Monoblock Marine and Powersports Amplifier

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

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Deaf Bonce Machete MLA-800

790W RMS Class D Machete Series Monoblock Car Amplifier

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Deaf Bonce Machete MLA-800

790W RMS Class D Machete Series Monoblock Car Amplifier

• 340 watts x 1 channel @ 4 ohm
• 540 watts x 1 channel @ 2 ohm
• 790 watts x 1 channel @ 1 ohm
• Total RMS Power: 790 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Rockford Fosgate Punch Marine PM500X1bd

500W RMS Class BD Punch Series Monoblock Marine Amplifier

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Rockford Fosgate Punch Marine PM500X1bd

500W RMS Class BD Punch Series Monoblock Marine Amplifier

• 150 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• 500 watts x 1 channel @ 1 ohm
• Total RMS Power: 500 watts
• Class BD 1 ohm Stable Monoblock Amplifier

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• 150 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• 500 watts x 1 channel @ 1 ohm
• Total RMS Power: 500 watts
• Class BD 1 ohm Stable Monoblock Amplifier

DS18 SXE-2500.1D/RD

2500W Peak (800W RMS) Class D SXE Series Monoblock Car Amplifier with Bass Remote (Red)

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DS18 SXE-2500.1D/RD

2500W Peak (800W RMS) Class D SXE Series Monoblock Car Amplifier with Bass Remote (Red)

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

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$239.95

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American Bass VFL Comp 20K (VFLCOMP-20K)

20000W RMS Class D VFL Comp Series Monoblock Car Amplifier (with Bass Remote)

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American Bass VFL Comp 20K (VFLCOMP-20K)

20000W RMS Class D VFL Comp Series Monoblock Car Amplifier (with Bass Remote)

• 7600 watts x 1 channel @ 4 ohm
• 13000 watts x 1 channel @ 2 ohm
• 20000 watts x 1 channel @ 1 ohm
• Total RMS Power: 20000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
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Massive Audio T2

1600W Peak (800W RMS) Class D Trident Series Monoblock Marine and Powersports Amplifier

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Massive Audio T2

1600W Peak (800W RMS) Class D Trident Series Monoblock Marine and Powersports Amplifier

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

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

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    FAQ for Monoblock Sub Amplifiers in 1982 733i

    Q: Can I upgrade or change the Monoblock Sub Amplifiers in 1982 BMW 733i?

    A: Yes this page includes all the best Monoblock Sub Amplifiers that work in your 733i.

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