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2021 GMC Acadia

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Use our shopping filters to find the right 2/3/4-channel amp to power upgraded speakers properly.

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

Amps for Adding Speakers for 2021 GMC Acadia

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.
Punch Series (32)
V Series (22)
Machete Series (19)
XDM Series (16)
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Prime Series (13)
Hydro Series (12)
CVP Series (11)
FRP Series (9)
SXE Series (9)
VXi Series (9)
Gen-X (8)
Marine V Series (7)
MVi Series (7)
Reference Series (7)
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Ground Pounder Series (6)
KXM Series (6)
M2 Series (6)
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Apocalypse Sport Series (4)
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V-Drive Series (4)
XED Series (4)
ACX Series (3)
AP Series (3)
Apex Series (3)
Apocalypse Atom Pro Series (3)
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D Series (3)
Diamond Elite Series (3)
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Altitude Series (2)
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COLOSSUS Series (2)
Compact Mean Machine Series (2)
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Edge Series (2)
Excelon Motorsports Series (2)
Excelon Reference Series (2)
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HXM Series (2)
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Power Pack Series (2)
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QS Series (2)
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ACM Series (1)
Alpha Series (1)
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CVPRO Series (1)
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VFL Stealth Series (1)
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XFL Series (1)
XQ Series (1)
ZXI 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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Massive Audio TX44

960W RMS Class D Trident Series 4 Channel Marine Amplifier with Bluetooth

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Massive Audio TX44

960W RMS Class D Trident Series 4 Channel Marine Amplifier with Bluetooth

• 120 watts x 4 channel @ 4 ohm
• 240 watts x 4 channel @ 2 ohm
• Bridged: 480 watts x 2 channel @ 4 ohm
• Total RMS Power: 960 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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• 120 watts x 4 channel @ 4 ohm
• 240 watts x 4 channel @ 2 ohm
• Bridged: 480 watts x 2 channel @ 4 ohm
• Total RMS Power: 960 watts
• Class D 2 ohm Stable 4-Channel Amplifier

DS18 Hydro NXL-M5

3600W Peak (1520W RMS) Class D Hydro Series 5-Channel Car Amplifier with Bass Remote

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DS18 Hydro NXL-M5

3600W Peak (1520W RMS) Class D Hydro Series 5-Channel Car Amplifier with Bass Remote

• 150 watts x 4 channel + 300 watts x 1 channel @ 4 ohm
• 230 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 440 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1520 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

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• 150 watts x 4 channel + 300 watts x 1 channel @ 4 ohm
• 230 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 440 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1520 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

NVX - Worth the Envy - Direct to Consumer Car Audio

DS18 Hydro NXL-M6

2700W Peak (1380W RMS) Class D NXL Series 6-Channel Car Amplifier

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DS18 Hydro NXL-M6

2700W Peak (1380W RMS) Class D NXL Series 6-Channel Car Amplifier

• 150 watts x 6 channel @ 4 ohm
• 230 watts x 6 channel @ 2 ohm
• Bridged: 440 watts x 3 channel @ 4 ohm
• Total RMS Power: 1380 watts
• Class D 2 ohm Stable 6-Channel Amplifier

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• 150 watts x 6 channel @ 4 ohm
• 230 watts x 6 channel @ 2 ohm
• Bridged: 440 watts x 3 channel @ 4 ohm
• Total RMS Power: 1380 watts
• Class D 2 ohm Stable 6-Channel Amplifier

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NVX NDA6004 (Open Box, Great)

1200W Peak (600W RMS) N-Series Class-D 4-Channel Amplifier

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NVX NDA6004 (Open Box, Great)

1200W Peak (600W RMS) N-Series Class-D 4-Channel Amplifier

• 100 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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Wet Sounds Sinister-SDX2

1250W RMS Class D Sinister Series 2 Channel Marine Amplifier

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Wet Sounds Sinister-SDX2

1250W RMS Class D Sinister Series 2 Channel Marine Amplifier

• 400 watts x 2 channel @ 4 ohm
• 620 watts x 2 channel @ 2 ohm
• Bridged: 1250 watts x 1 channel @ 4 ohm
• Total RMS Power: 1250 watts
• Class D 2 ohm Stable 2-Channel Marine Amplifier

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• 400 watts x 2 channel @ 4 ohm
• 620 watts x 2 channel @ 2 ohm
• Bridged: 1250 watts x 1 channel @ 4 ohm
• Total RMS Power: 1250 watts
• Class D 2 ohm Stable 2-Channel Marine Amplifier

Diamond Audio HX1200.5

1400W RMS Class D HEX Series 5-Channel Full Range Car Amplifier (with Bass Remote)

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Diamond Audio HX1200.5

1400W RMS Class D HEX Series 5-Channel Full Range Car Amplifier (with Bass Remote)

• 100 watts x 4 channel + 480 watts x 1 channel @ 4 ohm
• 150 watts x 4 channel + 800 watts x 1 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm + 800 watts x 1 channel @ 2 ohm
• Total RMS Power: 1400 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

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DS18 Hydro NXL-X600.4D

1600W Peak Class D HYDRO Series 4-Channel Marine and Powersports Amplifier

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DS18 Hydro NXL-X600.4D

1600W Peak Class D HYDRO Series 4-Channel Marine and Powersports Amplifier

• 150 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 1600 watts
• IPX6 waterproof rating
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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• 150 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 1600 watts
• IPX6 waterproof rating
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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Deaf Bonce Machete MLA-100.2

300W RMS Class D Machete Series 2-Channel Full Range Car Amplifier

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Deaf Bonce Machete MLA-100.2

300W RMS Class D Machete Series 2-Channel Full Range Car Amplifier

• 100 watts x 2 channel @ 4 ohm
• 150 watts x 2 channel @ 2 ohm
• Bridged: 300 watts x 1 channel @ 4 ohm
• Total RMS Power: 460 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

Save 30% on an NVX XKIT42 Amp Kit with Purchase!
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NVX XAPK4 + XIV25 (XKIT42 Sub)

NVX XAPK4 + XIV25 (XKIT42 Sub)

$109.99

$76.99

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Deaf Bonce Machete MLA-160.2

460W RMS Class D Machete Series 2-Channel Car Amplifier

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Deaf Bonce Machete MLA-160.2

460W RMS Class D Machete Series 2-Channel Car Amplifier

• 160 watts x 2 channel @ 4 ohm
• 230 watts x 2 channel @ 2 ohm
• Bridged: 460 watts x 1 channel @ 4 ohm
• Total RMS Power: 460 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

Save 30% on an NVX XKIT42 Amp Kit with Purchase!
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$139.90

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NVX XAPK4 + XIV25 (XKIT42 Sub)

NVX XAPK4 + XIV25 (XKIT42 Sub)

$109.99

$76.99

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Deaf Bonce Apocalypse ASA 1000.2

1000W RMS Class D Apocalypse Sport Series 2-Channel Car Amplifier

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Deaf Bonce Apocalypse ASA 1000.2

1000W RMS Class D Apocalypse Sport Series 2-Channel Car Amplifier

• 410 watts x 2 channel @ 4 ohm
• 680 watts x 2 channel @ 2 ohm
• 1000 watts x 2 channel @ 1 ohm
• Bridged: 1360 watts x 1 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable 2-Channel Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
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$399.90

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NVX XKIT02

NVX XKIT02

$179.99

$125.99

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Diamond Audio HXM800.4D

800W RMS Class D Motorsport Series 4-Channel Full Range Car, Marine and Powersport Amplifier with Bluetooth

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Diamond Audio HXM800.4D

800W RMS Class D Motorsport Series 4-Channel Full Range Car, Marine and Powersport Amplifier with Bluetooth

• 120 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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List price $679.99
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MB Quart RA1-710.5

700W Peak (550W RMS) Class D Reference Series 5 Channel Car Amplifier with Bass Remote

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MB Quart RA1-710.5

700W Peak (550W RMS) Class D Reference Series 5 Channel Car Amplifier with Bass Remote

• 50 watts x 4 channel + 150 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 150 watts x 1 channel @ 2 ohm
• Bridged: 350 watts x 1 channel @ 4 ohm + 150 watts x 1 channel @ 2 ohm
• Total RMS Power: 550 watts
• Class D 1 ohm Stable 5-Channel Amplifier

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Save 30% off an NVX XKIT46 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT46 Amp Kit! No code needed — discount applies automatically at checkout.
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MTX PS800.4

800W RMS Class D PS Series 4-Channel Powersports Amplifier

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MTX PS800.4

800W RMS Class D PS Series 4-Channel Powersports Amplifier

• 100 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 4-Channel Amplifier

FREE Belva Amp Kit at Checkout! Shop deal
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List price $549.95
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• 100 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Cerwin-Vega VCU85

1900W Peak (950W RMS) Class D Vega Series 5-Channel Car and Marine Amplifier

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Cerwin-Vega VCU85

1900W Peak (950W RMS) Class D Vega Series 5-Channel Car and Marine Amplifier

• 80 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 150 watts x 4 channel + 350 watts x 1 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm + 200 watts x 1 channel
• Total RMS Power: 950 watts
• Class D 2 ohm Stable 5-Channel Amplifier

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List price $635.99
-38% $397.49

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• 80 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 150 watts x 4 channel + 350 watts x 1 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm + 200 watts x 1 channel
• Total RMS Power: 950 watts
• Class D 2 ohm Stable 5-Channel Amplifier

Diamond Audio DES1000.5D

1100W RMS Class D Diamond Elite Series 5-Channel Full Range Amplifier (with Bass Remote)

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Diamond Audio DES1000.5D

1100W RMS Class D Diamond Elite Series 5-Channel Full Range Amplifier (with Bass Remote)

• 90 watts x 4 channel + 150 watts x 2 channel @ 4 ohm
• 150 watts x 4 channel + 250 watts x 1 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm + 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable 5-Channel Amplifier

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JL Audio MV700/5i

700W RMS Class D MVi Series 5 Channel Marine Amplifier

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JL Audio MV700/5i

700W RMS Class D MVi Series 5 Channel Marine Amplifier

• 75 watts x 4 channel + 180 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 300 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 700 watts
• Class D 2 ohm Stable 5-Channel Amplifier

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Rockford Fosgate M2-200X2

200W RMS Class D M2 Series 2 Channel Marine Amplifier

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Rockford Fosgate M2-200X2

200W RMS Class D M2 Series 2 Channel Marine Amplifier

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

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

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Cerwin Vega S9500.2D

500W RMS Class D Stroker Series 2-Channel Car Amplifier with Bass Remote

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Cerwin Vega S9500.2D

500W RMS Class D Stroker Series 2-Channel Car Amplifier with Bass Remote

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

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Diamond Audio HX480.4

740W RMS Class D HEX Series 4-Channel Full Range Car Amplifier

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Diamond Audio HX480.4

740W RMS Class D HEX Series 4-Channel Full Range Car Amplifier

• 120 watts x 4 channel @ 4 ohm
• 185 watts x 4 channel @ 2 ohm
• Bridged: 370 watts x 2 channel @ 4 ohm
• Total RMS Power: 740 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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Diamond Audio HX600.4

1000W RMS Class D HEX Series 4-Channel Full Range Car Amplifier

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Diamond Audio HX600.4

1000W RMS Class D HEX Series 4-Channel Full Range Car Amplifier

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

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    FAQ for Multi-channel Amplifiers for Adding Speakers in 2021 Acadia

    Q: Can I upgrade or change the Multi-channel Amplifiers for Adding Speakers in 2021 GMC Acadia?

    A: Yes this page includes all the best Multi-channel Amplifiers for Adding Speakers that work in your Acadia.

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