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1975 Mercury Comet

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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 1975 Mercury Comet

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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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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MTX MUD50-2

200W Peak (50W RMS) Class D MUD Series 2 Channel Marine and Powersports Amplifier

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MTX MUD50-2

200W Peak (50W RMS) Class D MUD Series 2 Channel Marine and Powersports Amplifier

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

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

Deaf Bonce Machete MLA-1500

1480W RMS Class D Machete Series Monoblock Car Amplifier

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Deaf Bonce Machete MLA-1500

1480W RMS Class D Machete Series Monoblock Car Amplifier

• 540 watts x 1 channel @ 4 ohm
• 920 watts x 1 channel @ 2 ohm
• 1480 watts x 1 channel @ 1 ohm
• Total RMS Power: 1480 watts
• Class D 1 ohm Stable Monoblock Amplifier

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DC Audio 10.0k

10000W RMS Class D Competition Series Monoblock Car Amplifier (with Bass Remote)

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DC Audio 10.0k

10000W RMS Class D Competition Series Monoblock Car Amplifier (with Bass Remote)

• 3000 watts x 1 channel @ 4 ohm
• 5500 watts x 1 channel @ 2 ohm
• 10000 watts x 1 channel @ 1 ohm
• Total RMS Power: 10000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Cerwin-Vega H900.6D

900W RMS Class D HED Series 6 Channel Car Amplifier

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Cerwin-Vega H900.6D

900W RMS Class D HED Series 6 Channel Car Amplifier

• 100 watts x 6 channel @ 4 ohm
• 150 watts x 6 channel @ 2 ohm
• Bridged: 300 watts x 3 channel @ 4 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 6-Channel Amplifier

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Hertz HMP 4D

600W Peak (260W RMS) Class D 4 HMP Series 4-Channel Full Range Motorcycle and Powersports Amplifier

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Hertz HMP 4D

600W Peak (260W RMS) Class D 4 HMP Series 4-Channel Full Range Motorcycle and Powersports Amplifier

• 4 Channel: 50 watts x 4 channel @ 4 ohm
• 4 Channel: 65 watts x 4 channel @ 2 ohm
• 3 Channel: 50 watts x 2 channel @ 4 ohm + 130 watts x 1 channel @ 4 ohm
• 3 Channel: 65 watts x 2 channel @ 2 ohm + 130 watts x 1 channel @ 4 ohm
• 2 Channel: 130 watts x 2 channel @ 4-ohm
• Total RMS Power: 260 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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List price $415.00
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• 4 Channel: 50 watts x 4 channel @ 4 ohm
• 4 Channel: 65 watts x 4 channel @ 2 ohm
• 3 Channel: 50 watts x 2 channel @ 4 ohm + 130 watts x 1 channel @ 4 ohm
• 3 Channel: 65 watts x 2 channel @ 2 ohm + 130 watts x 1 channel @ 4 ohm
• 2 Channel: 130 watts x 2 channel @ 4-ohm
• Total RMS Power: 260 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

PRV Audio RS1400 BASS 1 Ohm

1400W RMS Class D RS Series Monoblock Car Amplifier

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PRV Audio RS1400 BASS 1 Ohm

1400W RMS Class D RS Series Monoblock Car Amplifier

• 1000 watts x 1 channel @ 2 ohm
• 1400 watts x 1 channel @ 1 ohm
• Total RMS Power: 1400 watts
• Class D 1 ohm Stable Monoblock Amplifier

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List price $237.39
-20% $189.91

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Hifonics BG-1100.4

1100W RMS Class D Brutus BG Series 4-Channel Car Amplifier

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Hifonics BG-1100.4

1100W RMS Class D Brutus BG Series 4-Channel Car Amplifier

• 175 watts x 4 channel @ 4 ohm
• 275 watts x 4 channel @ 2 ohm
• Bridged: 550 watts x 2 channel @ 4 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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• 175 watts x 4 channel @ 4 ohm
• 275 watts x 4 channel @ 2 ohm
• Bridged: 550 watts x 2 channel @ 4 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Diamond Audio MICRO81U

600W RMS Class D Micro8U Series Monoblock Car Amplifier (with Bass Remote)

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Diamond Audio MICRO81U

600W RMS Class D Micro8U Series Monoblock Car Amplifier (with Bass Remote)

• 400 watts x 1 channel @ 2 ohms
• 600 watts x 1 channel @ 1 ohm
• Bridged: 240 watts x 1 channel @ 4 ohms
• Bridged: 400 watts x 1 channel @ 2 ohms
• Bridged: 600 watts x 1 channel @ 1 ohms
• Total RMS Power: 600 watts
• Class D 2 ohm Stable Monoblock Amplifier

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List price $569.99
-12% $499.99

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Wet Sounds HTM-6

900W RMS Class D HTM Series 6 Channel Marine Amplifier with LED Backlit Badge

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Wet Sounds HTM-6

900W RMS Class D HTM Series 6 Channel Marine Amplifier with LED Backlit Badge

• 85 watts x 6 channel @ 4 ohm
• 150 watts x 6 channel @ 2 ohm
• Bridged: 300 watts x 3 channel @ 4 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 6-Channel Marine Amplifier

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• 85 watts x 6 channel @ 4 ohm
• 150 watts x 6 channel @ 2 ohm
• Bridged: 300 watts x 3 channel @ 4 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 6-Channel Marine Amplifier

JL Audio AP300/4

300W RMS Class D AP Series 4-Channel Marine and Powersports Amplifier with Built-in LCD Display

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JL Audio AP300/4

300W RMS Class D AP Series 4-Channel Marine and Powersports Amplifier with Built-in LCD Display

• 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 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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List price $599.99
-17% $499.99

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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 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

Hifonics BG-1000.1

1000W RMS Class D Brutus BG Series Monoblock Car Amplifier with Bass Remote

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Hifonics BG-1000.1

1000W RMS Class D Brutus BG Series Monoblock Car Amplifier with Bass Remote

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

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List price $249.99
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JL Audio XDM500/3

500W RMS Class D XDM Series 3 Channel Car and Marine Amplifier

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JL Audio XDM500/3

500W RMS Class D XDM Series 3 Channel Car and Marine Amplifier

• 75 watts x 2 channel + 180 watts x 1 channel @ 4 ohm
• 100 watts x 2 channel + 300 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 1 channel @ 4 ohm + 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 3-Channel Amplifier

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NVX VADM2 Version 2 (VADM2v2) (Open Box, Great)

600W RMS V-Series Micro Full-Range Class D 2-Channel Amplifier Car/Marine/Powersports Amplifier

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NVX VADM2 Version 2 (VADM2v2) (Open Box, Great)

600W RMS V-Series Micro Full-Range Class D 2-Channel Amplifier Car/Marine/Powersports Amplifier

• 200 watts x 2 channel @ 4 ohm
• 300 watts x 2 channel @ 2 ohm
• Bridged: 600 watts x 1 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

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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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JBL APEX PA1254

1250W Peak (500W RMS) Class D Apex Series Compact 4-Channel Marine and Powersports Amplifier

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JBL APEX PA1254

1250W Peak (500W RMS) Class D Apex Series Compact 4-Channel Marine and Powersports Amplifier

• 75 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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• 75 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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American Bass VFL REBEL 5000.1

5000W RMS Class D VFL Rebel Series Monoblock Full Range Amplifier

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American Bass VFL REBEL 5000.1

5000W RMS Class D VFL Rebel Series Monoblock Full Range Amplifier

• 1600 watts x 1 channel @ 4 ohm
• 3400 watts x 1 channel @ 2 ohm
• 5000 watts x 1 channel @ 1 ohm
• Total RMS Power: 500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Alpine KTA-30MW Tough Power Pack

600W Peak (300W RMS) Class D Power Pack Series Monoblock Marine and Powersports Amplifier

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Alpine KTA-30MW Tough Power Pack

600W Peak (300W RMS) Class D Power Pack Series Monoblock Marine and Powersports Amplifier

• 300 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

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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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Diamond Audio HX800.1D

800W RMS Class D Hex Series Monoblock Car Amplifier (with Bass Remote)

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Diamond Audio HX800.1D

800W RMS Class D Hex Series Monoblock Car Amplifier (with Bass Remote)

• 340 watts x 1 channel @ 4 ohm
• 560 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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MTX RTX3000.1

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

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MTX RTX3000.1

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

• 1000 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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• 1000 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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    FAQ for Universal-Fit Audio & Electronics in 1975 Comet

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 1975 Mercury Comet?

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