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1973 Ford Thunderbird

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Universal gear includes car amplifiers, subs, and other products that do not install in a specific location or require fitment to integrate with a vehicle.

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

Universal-Fit Audio for 1973 Ford Thunderbird

When thinking of universal gear, we consider products like a car amp that gives more power to your speakers or subs, cell phone chargers, equalizers and sound processors, rear-seat entertainment and video monitors, as well as dash cameras.

Better sound with your factory radio

Better sound with a factory radio

Love your factory look or can't replace the stereo? We got you covered.

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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.
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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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Crunch CRA-2000.4

2000W RMS Class D CRA Series 4-Channel Compact Car Amplifier

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Crunch CRA-2000.4

2000W RMS Class D CRA Series 4-Channel Compact Car Amplifier

• 250 watts x 4 channel @ 4 ohm
• 500 watts x 4 channel @ 2 ohm
• Bridged: 1000 watts x 2 channel @ 4 ohm
• Total RMS Power: 2000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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NVX XKIT44

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• 250 watts x 4 channel @ 4 ohm
• 500 watts x 4 channel @ 2 ohm
• Bridged: 1000 watts x 2 channel @ 4 ohm
• Total RMS Power: 2000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

JL Audio AP300/1

300W RMS Class D AP Series Monoblock Marine and Powersports Amplifier with Built-in LCD Display

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JL Audio AP300/1

300W RMS Class D AP Series Monoblock Marine and Powersports Amplifier with Built-in LCD Display

• 200 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Built-in LCD display for manual control
• Can be paired with a Fusion stereo with built-in DSP
• Easy Tune feature via Fusion Audio app
• Control Fusion Audio app via smartphone

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Crunch CRA-1500.4

1500W RMS Class D CRA Series 4-Channel Compact Car Amplifier

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Crunch CRA-1500.4

1500W RMS Class D CRA Series 4-Channel Compact Car Amplifier

• 185 watts x 4 channel @ 4 ohm
• 375 watts x 4 channel @ 2 ohm
• Bridged: 750 watts x 2 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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NVX XKIT44

NVX XKIT44

$119.99

$83.99

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• 185 watts x 4 channel @ 4 ohm
• 375 watts x 4 channel @ 2 ohm
• Bridged: 750 watts x 2 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Jensen JATWO

530W Peak (445W RMS) Class D JA Series 2-Channel Car Amplifier

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Jensen JATWO

530W Peak (445W RMS) Class D JA Series 2-Channel Car Amplifier

• 125 watts x 2 channel RMS @ 4 ohm
• 215 watts x 2 channel RMS @ 2 ohm
• Bridged: 445 watts x 1 channel RMS @ 4 ohm
• Total RMS Power: 445 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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Deaf Bonce Machete MFA-1.500

500W RMS Class D Machete Series Monoblock Car Amplifier with Bass Remote

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Deaf Bonce Machete MFA-1.500

500W RMS Class D Machete Series Monoblock Car Amplifier with Bass Remote

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

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NVX XAPK4 + XIV25 (XKIT42 Sub)

NVX XAPK4 + XIV25 (XKIT42 Sub)

$109.99

$76.99

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Cerwin-Vega CVP2400.1

2400W Peak (660W RMS) Class D CVP Series Monoblock Car Amplifier with Bass Remote

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Cerwin-Vega CVP2400.1

2400W Peak (660W RMS) Class D CVP Series Monoblock Car Amplifier with Bass Remote

• 370 watts x 1 channel @ 4 ohm
• 660 watts x 1 channel @ 2 ohm
• Total RMS Power: 660 watts
• Class D 2 ohm Stable Monoblock Amplifier

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Cerwin-Vega CVP3600.1

3600W Peak (900W RMS) Class D CVP Series Monoblock Car Amplifier with Bass Remote

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Cerwin-Vega CVP3600.1

3600W Peak (900W RMS) Class D CVP Series Monoblock Car Amplifier with Bass Remote

• 500 watts x 1 channel @ 4 ohm
• 900 watts x 1 channel @ 2 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable Monoblock Amplifier

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$249.99

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Cerwin-Vega VCU84

1200W Peak (600W RMS) Class D Vega Series 4-Channel Car and Marine Amplifier

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Cerwin-Vega VCU84

1200W Peak (600W RMS) Class D Vega Series 4-Channel Car and Marine Amplifier

• 80 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 Amplifier

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NVX XKIT84

NVX XKIT84

$79.99

$55.99

$24 Savings!

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Crunch DR-2125.1D

2125W Peak Class D V-Drive Series Monoblock Car Subwoofer (with Bass Remote)

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Crunch DR-2125.1D

2125W Peak Class D V-Drive Series Monoblock Car Subwoofer (with Bass Remote)

• 1050 watts x 1 channel @ 4 ohm
• 2125 watts x 1 channel @ 2 ohm
• Total peak power output: 2125 watts
• Class D 2 ohm Stable Monoblock Amplifier

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Crunch DR-2125.2D

2125W Peak Class D V-Drive Series 2-Channel Car Amplifier

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Crunch DR-2125.2D

2125W Peak Class D V-Drive Series 2-Channel Car Amplifier

• 530 watts x 2 channel @ 4 ohm
• 1060 watts x 2 channel @ 2 ohm
• Bridged: 2125 watts x 1 channel @ 4 ohm
• Total peak power output: 2125 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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List price $95.99
-6% $89.99

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JVC KS-DR2004D

600W Peak (150W RMS) Class D DRVN Series 4-Channel Marine and Powersports Amplifier

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JVC KS-DR2004D

600W Peak (150W RMS) Class D DRVN Series 4-Channel Marine and Powersports Amplifier

• 50 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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List price $318.80
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• 50 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Limited time!

DS18 SXE-3000.4D/RD

3000W Peak (1360W RMS) Class D SXE Series 4 Channel Full Range Car Amplifier

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DS18 SXE-3000.4D/RD

3000W Peak (1360W RMS) Class D SXE Series 4 Channel Full Range Car Amplifier

• 200 watts x 4 channel @ 4 ohm
• 320 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1360 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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NVX XKIT44

NVX XKIT44

$119.99

$83.99

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Boss Elite BE600.1D

600W RMS Class D Elite Series Monoblock Car Amplifier with Bass Remote

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Boss Elite BE600.1D

600W RMS Class D Elite Series Monoblock Car Amplifier with Bass Remote

• 200 watts x 1 channel @ 4 ohm
• 350 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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MTX MA750.1

750W RMS Class D MA Series Monoblock Marine Amplifier with Bass Remote

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MTX MA750.1

750W RMS Class D MA Series Monoblock Marine Amplifier with Bass Remote

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

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

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DC Audio 1.2k

1200W RMS Class D Competition Series Monoblock Car Amplifier (with Bass Remote)

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DC Audio 1.2k

1200W RMS Class D Competition Series Monoblock Car Amplifier (with Bass Remote)

• 350 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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NVX XAPK4 + XIV25 (XKIT42 Sub)

NVX XAPK4 + XIV25 (XKIT42 Sub)

$109.99

$76.99

$33 Savings!

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AudioControl ACX-600.1

600W RMS Class D ACX Series Monoblock Marine and Powersports Amplifier

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AudioControl ACX-600.1

600W RMS Class D ACX Series Monoblock Marine and Powersports Amplifier

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

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

Hifonics HAC-1500.1D Colossus Pro

1500W Peak Class D Colossus Pro Series Monoblock Car Amplifier with Bass Remote

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Hifonics HAC-1500.1D Colossus Pro

1500W Peak Class D Colossus Pro Series Monoblock Car Amplifier with Bass Remote

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

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Sound Extreme by ECOXGEAR SEI-AMPEV30041

300W RMS Class D EV Series 4 Channel Marine Amplifier

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Sound Extreme by ECOXGEAR SEI-AMPEV30041

300W RMS Class D EV Series 4 Channel Marine Amplifier

• 74 watts x 4 channel @ 4 ohm
• Bridged: 150 watts x 2 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 4 ohm Stable 4-Channel Amplifier

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• 74 watts x 4 channel @ 4 ohm
• Bridged: 150 watts x 2 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 4 ohm Stable 4-Channel Amplifier

Boss Elite BE400.1D

400W RMS Class D Elite Series Monoblock Car Amplifier with Bass Remote

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Boss Elite BE400.1D

400W RMS Class D Elite Series Monoblock Car Amplifier with Bass Remote

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

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Autotek MM-2025.4D Mean Machine

2000W Peak Class D Compact Mean Machine Series 4-Channel Car Amplifier

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Autotek MM-2025.4D Mean Machine

2000W Peak Class D Compact Mean Machine Series 4-Channel Car Amplifier

• 250 watts x 4 channel @ 4 ohm
• 500 watts x 4 channel @ 2 ohm
• Bridged: 1000 watts x 2 channel @ 4 ohm
• Total Peak Power: 2000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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$199.99

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