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1978 GMC Caballero

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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 1978 GMC Caballero

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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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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Crunch CRA-1500.1

1500W RMS Class D CRA Series Monoblock Car Amplifier with Bass Remote

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Crunch CRA-1500.1

1500W RMS Class D CRA Series Monoblock Car Amplifier with Bass Remote

• 650 watts x 1 channel @ 4 ohm
• 750 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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NVX XAPK4 + XIV25 (XKIT42 Sub)

NVX XAPK4 + XIV25 (XKIT42 Sub)

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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

NVX - Worth the Envy - Direct to Consumer Car Audio
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Infinity Primus 50011A (PRIMUS50011A)

1220W Peak (500W RMS) Class D Primus Series Monoblock Car Amplifier with Bass Remote

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Infinity Primus 50011A (PRIMUS50011A)

1220W Peak (500W RMS) Class D Primus Series Monoblock Car Amplifier with Bass Remote

• 300 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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• 300 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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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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Diamond Audio MICRO1V2

500W RMS Class D MicroV2 Series Compact Monoblock Amplifier with Bass Remote and Bluetooth

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Diamond Audio MICRO1V2

500W RMS Class D MicroV2 Series Compact Monoblock Amplifier with Bass Remote and Bluetooth

• 175 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Bridged: 175 watts x 1 channel @ 4 ohms
• Bridged: 300 watts x 1 channel @ 2-ohms
• Bridged: 500 watts x 1 channel @ 1-ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier

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DS18 SMD-8500.1D

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

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DS18 SMD-8500.1D

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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NVX XKIT02

NVX XKIT02

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Hifonics HCM-1500.1D Colossus Mini

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

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Hifonics HCM-1500.1D Colossus Mini

1500W Peak Class D Colossus Mini 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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Hertz DPower 1

600W Peak (300W RMS) Class D DPOWER Series Monoblock Car Amplifier

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Hertz DPower 1

600W Peak (300W RMS) Class D DPOWER Series Monoblock Car Amplifier

• 180 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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Massive Audio T3

1400W RMS Class D Trident Series Monoblock Marine and Powersports Amplifier

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Massive Audio T3

1400W RMS Class D Trident Series Monoblock Marine and Powersports Amplifier

• 450 Watts RMS x 1 @ 4 ohm
• 700 Watts RMS x 1 @ 2 ohm
• 1400 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 2800 Watts
• CEA-2006 Compliant/Preamp Outputs/LPF
• 4.25 "W 11.50 "L 1.6 "H

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• 450 Watts RMS x 1 @ 4 ohm
• 700 Watts RMS x 1 @ 2 ohm
• 1400 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 2800 Watts
• CEA-2006 Compliant/Preamp Outputs/LPF
• 4.25 "W 11.50 "L 1.6 "H

Kicker 46CXA8001 with Amplifier Wiring Kit

800W RMS CX Series Class-D Monoblock Amplifier

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Kicker 46CXA8001 with Amplifier Wiring Kit

800W RMS CX Series Class-D Monoblock Amplifier

• 300 Watts RMS x 1 @ 4 ohm
• 600 Watts RMS x 1 @ 2 ohm
• 800 Watts RMS x 1 @ 1 ohm
• Efficient Class-D Monoblock Amplifier
• KickEQ™ 6dB variable bass boost for those additional low frequencies
• Includes Amplifier Wiring Kit

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• 300 Watts RMS x 1 @ 4 ohm
• 600 Watts RMS x 1 @ 2 ohm
• 800 Watts RMS x 1 @ 1 ohm
• Efficient Class-D Monoblock Amplifier
• KickEQ™ 6dB variable bass boost for those additional low frequencies
• Includes Amplifier Wiring Kit

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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MB Quart PA1-3000.1

3000W Peak Class D Premium Pro Series Monoblock Car Amplifier with Bass Remote

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MB Quart PA1-3000.1

3000W Peak Class D Premium Pro Series Monoblock Car Amplifier with Bass Remote

• 1000 watts x 1 channel @ 4 ohm
• 1500 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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List price $499.99
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Alpine Status HDA-M80

800W RMS Class D Status Series Monoblock Car Amplifier

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Alpine Status HDA-M80

800W RMS Class D Status Series Monoblock Car Amplifier

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

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List price $1080.00
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Cerwin-Vega SRPM1000.1D

1000W RMS Class D RPM Stroker Series Monoblock Marine and Powersports Amplifier

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Cerwin-Vega SRPM1000.1D

1000W RMS Class D RPM Stroker Series Monoblock Marine and Powersports Amplifier

• 400 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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Hifonics HCM-1200.1D Colossus Mini

1200W Peak Class D Colossus Mini Series Monoblock Amplifier with Bass Remote

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Hifonics HCM-1200.1D Colossus Mini

1200W Peak Class D Colossus Mini Series Monoblock Amplifier with Bass Remote

• 300 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

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List price $429.99
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MTX TN1000.1

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

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MTX TN1000.1

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

• 400 watts x 1 channel @ 4 ohm
• 700 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 $439.95
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• 400 watts x 1 channel @ 4 ohm
• 700 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

Limited time!

MB Quart PA1-5000.1

5000W Peak Class D Premium Pro Series Monoblock Car Amplifier with Bass Remote

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MB Quart PA1-5000.1

5000W Peak Class D Premium Pro Series Monoblock Car Amplifier with Bass Remote

• 2500 watts x 1 channel @ 4 ohm
• 5000 watts x 1 channel @ 2 ohm
• Total RMS Power: 5000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
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List price $799.99
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NVX XKIT02

NVX XKIT02

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Kicker PXA300.1 (48PXA3001)

500W Peak (300W RMS) Class D PXA Series Monoblock Marine and Powersports Amplifier

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Kicker PXA300.1 (48PXA3001)

500W Peak (300W RMS) Class D PXA Series Monoblock Marine and Powersports Amplifier

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

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Hifonics A1200.1D with Belva 8 Gauge Amp Kit

Alpha Series Class-D Compact 1200 Watt 1-Ohm Stable Monoblock Car Audio Amplifier

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Hifonics A1200.1D with Belva 8 Gauge Amp Kit

Alpha Series Class-D Compact 1200 Watt 1-Ohm Stable Monoblock Car Audio Amplifier

• 4 ohm: 325 Watts x 1 chan. / 2 ohm: 600 Watts x 1 chan. / 1 ohm: 1200 Watts x 1 chan.
• Total power output: 1200 Watts
• Pulse Width Modulated MOSFET power supply
• Accu-Cross crossovers allow for complete control of the signal directing to all speakers
• The Ultra-Fi™ MOSFET is designed for music production vs just electronics output power. It produces very musical high power with high efficiency for cooling and minimal distortion
• Frequency Response: 10 - 250 Hz
• Includes Amplifier Wiring Kit

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• 4 ohm: 325 Watts x 1 chan. / 2 ohm: 600 Watts x 1 chan. / 1 ohm: 1200 Watts x 1 chan.
• Total power output: 1200 Watts
• Pulse Width Modulated MOSFET power supply
• Accu-Cross crossovers allow for complete control of the signal directing to all speakers
• The Ultra-Fi™ MOSFET is designed for music production vs just electronics output power. It produces very musical high power with high efficiency for cooling and minimal distortion
• Frequency Response: 10 - 250 Hz
• Includes Amplifier Wiring Kit

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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    FAQ for Monoblock Sub Amplifiers in 1978 Caballero

    Q: Can I upgrade or change the Monoblock Sub Amplifiers in 1978 GMC Caballero?

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