Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In
  1. Home
  2. Car Audio & Electronics
  3. Car Amplifiers
  4. 4-Channel Amplifiers

4-Channel Amplifiers

Filters
Brand New ✕
Clear Filters
Reset Done
Price Range
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.
FRP Series (9)
Machete Series (8)
SXE Series (7)
CVP Series (5)
Gen-X (4)
Power Series (4)
Brutus BRL Series (3)
CRA Series (3)
Ground Pounder Series (3)
Premium Pro Series (3)
Punch Series (3)
Rebel Series (3)
SAE Series (3)
SFB Series (3)
SMD Series (3)
ZR Series (3)
AP Series (2)
Brutus BG Series (2)
COLOSSUS Mini Series (2)
COLOSSUS Series (2)
Compact Mean Machine Series (2)
Epic Series (2)
HED Series (2)
HEX Series (2)
Hooligan Series (2)
iON Series (2)
MDX Series (2)
Micro Series (2)
Mini Series (2)
Power Pack Series (2)
Prime Series (2)
Reference Series (2)
SALT Series (2)
Thunder Series (2)
V Series (2)
V-Drive Series (2)
Venezia Series (2)
X Series (2)
XED Series (2)
Zeus Series (2)
Altitude Series (1)
Atom Series (1)
Buran Series (1)
BX Series (1)
Club Series (1)
Competition Series (1)
CVPRO Series (1)
CX Series (1)
D Series (1)
DB Series (1)
DC Series (1)
Diamond Elite Series (1)
DMD Series (1)
DSP Series (1)
Edge Series (1)
Elite Series (1)
Excelon Motorsports Series (1)
Excelon Reference Series (1)
eXcelon Series (1)
Formula Series (1)
FX Series (1)
GM Series (1)
Godfather Series (1)
HCCA Series (1)
HD Series (1)
JA Series (1)
JD Series (1)
Kappa Perfect Series (1)
Key Series (1)
LC Series (1)
LX Series (1)
M Series (1)
Marine V Series (1)
Mean Machine Series (1)
MHD Series (1)
MINI BANG Series (1)
MotorSport Series (1)
MVi Series (1)
N-Series (1)
Primo Series (1)
Primus Series (1)
QS Series (1)
R-Series (1)
RD Series (1)
RTX Series (1)
S Series (1)
SPL (1)
SPL Show Series (1)
Stage GT Series (1)
Status Series (1)
Stealth Bomber Series (1)
Stealth Mini Series (1)
Stroker Series (1)
Terminator Series (1)
VEGA Series (1)
VFL Comp Series (1)
VFL Series (1)
VFL Stealth Series (1)
VXi Series (1)
Warhorse Series (1)
XC-Series (1)
XDM Series (1)
XFL 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.
Deals
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
Condition
Brand New,
Availability

Shop the Category

filter-icon Filters & Sort
Limited time!

American Bass VFL Comp 350.4FR (VFLCOMP-350.4FR)

1000W RMS Class D VFL Comp Series 4-Channel Car Amplifier

VFLCOMP-350.4FR big
Go to item page Right Arrow Icon of Right Arrow

American Bass VFL Comp 350.4FR (VFLCOMP-350.4FR)

1000W RMS Class D VFL Comp Series 4-Channel Car Amplifier

• 175 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

Save 30% off an NVX XKIT44 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $45.42 in rewards to spend later

List price $766.72
-41% $454.18

In stock.

Add to Cart
Available Deal
VFLCOMP-350.4FR main
Offer may end without notice
Continue Shopping Continue to checkout
Eligible items

Shop items below for 30% off up to $100 discount on Save 30% off an NVX Amp Kit!

NVX XKIT44

NVX XKIT44

$119.99

$83.99

$36 Savings!

Add to cart
Limited time!

MTX Thunder TH800.4

800W RMS Class D Thunder Series 4 Channel Car Amplifier

TH8004 big
Go to item page Right Arrow Icon of Right Arrow

MTX Thunder TH800.4

800W RMS Class D Thunder Series 4 Channel Car 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-Channel Amplifier

2+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $48.00 in rewards to spend later

List price $649.95
Save $169.99
-26% $479.96

In stock

Only 1 Left!

Add to Cart
Continue to cart
Available Offers (2) for MTX Thunder TH800.4
FREE NVX Amp Kit at Checkout!
Add both to cart
Save 30% off an NVX XKIT44 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT44 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item

• 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-Channel Amplifier

Limited time!

American Bass VFL Stealth 500.4 (VFLSTEALTH-500.4)

250W RMS Class AB VFL Stealth Series 4-Channel Car Amplifier

VFLSTEALTH-500.4 big
Go to item page Right Arrow Icon of Right Arrow

American Bass VFL Stealth 500.4 (VFLSTEALTH-500.4)

250W RMS Class AB VFL Stealth Series 4-Channel Car Amplifier

• Total RMS Power: 250 watts
• Class A/B Stable 4-Channel Amplifier

Save 30% off an NVX XKIT44 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $29.04 in rewards to spend later

List price $715.96
-59% $290.39

In stock.

Add to Cart
Available Deal
VFLSTEALTH-500.4 main
Offer may end without notice
Continue Shopping Continue to checkout
Eligible items

Shop items below for 30% off up to $100 discount on Save 30% off an NVX Amp Kit!

NVX XKIT44

NVX XKIT44

$119.99

$83.99

$36 Savings!

Add to cart
Limited time!

DS18 X4XL

1800W Peak (720W RMS) Class D X Series 4-Channel Car Amplifier

X4XL big
Go to item page Right Arrow Icon of Right Arrow

DS18 X4XL

1800W Peak (720W RMS) Class D X Series 4-Channel Car Amplifier

• 120 watts x 4 channel @ 4 ohm
• 180 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 720 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Save 30% off an NVX XKIT84 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $30.00 in rewards to spend later

List price $359.99
-17% $299.95

In stock.

Add to Cart
Available Deal
X4XL main
Offer may end without notice
Continue Shopping Continue to checkout
Eligible items

Shop items below for 30% off up to $300 discount on Save 30% off an NVX Amp Kit!

NVX XKIT84

NVX XKIT84

$79.99

$55.99

$24 Savings!

Add to cart

American Bass XFL-DC-4200

1500W Peak (720W RMS) Class D XFL Series 4 Channel Car Amplifier

XFL-DC-4200 big
Go to item page Right Arrow Icon of Right Arrow

American Bass XFL-DC-4200

1500W Peak (720W RMS) Class D XFL Series 4 Channel Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 180 watts x 4 channel @ 2 ohm
• Bridged: 360 watts x 2 channel @ 4 ohm
• Total RMS Power: 720 watts
• Class D 2 ohm Stable 4-Channel Amplifier

2+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $26.88 in rewards to spend later

List price $335.99
-20% $268.79

In stock.

Add to Cart
Continue to cart
Available Offers (2) for American Bass XFL-DC-4200
FREE Belva Amp Kit at Checkout!
Add both to cart
Save 30% off an NVX XKIT84 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT84 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item
Limited time!

Diamond Audio DMD600.4D

640W RMS Class D DMD Series 4-Channel Full Range Car Amplifier with Bluetooth

DMD600.4D big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DMD600.4D

640W RMS Class D DMD Series 4-Channel Full Range Car Amplifier with Bluetooth

• 150 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 640 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Save 30% off an NVX XKIT84 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $39.00 in rewards to spend later

List price $399.99
$389.99

In stock.

Add to Cart
Available Deal
DMD600.4D main
Offer may end without notice
Continue Shopping Continue to checkout
Eligible items

Shop items below for 30% off up to $300 discount on Save 30% off an NVX Amp Kit!

NVX XKIT84

NVX XKIT84

$79.99

$55.99

$24 Savings!

Add to cart
See all 4 special offers
Limited time!

Infinity Kappa Perfect 5004A (INFPWSKP5004AAM)

1250W Peak (500W RMS) Class D Kappa Series 4 Channel Powersports Amplifier

KAPPA 5004A big
Go to item page Right Arrow Icon of Right Arrow

Infinity Kappa Perfect 5004A (INFPWSKP5004AAM)

1250W Peak (500W RMS) Class D Kappa Series 4 Channel 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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $36.00 in rewards to spend later

List price $549.95
Save $190.00
-35% $359.95

Available

Ships in 10-14 days

Add to Cart

Autotek MM-3025.4D Mean Machine

3000W Peak Class D Mean Machine Series 4-Channel Car Amplifier

MM-3025.4D big
Go to item page Right Arrow Icon of Right Arrow

Autotek MM-3025.4D Mean Machine

3000W Peak Class D Mean Machine Series 4-Channel Car Amplifier

• 375 watts x 4 channel @ 4 ohm
• 750 watts x 4 channel @ 2 ohm
• Bridged: 1500 watts x 2 channel @ 4 ohm
• Total Peak Power: 3000 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

2+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $25.00 in rewards to spend later

$249.99

Available

Ships in 10-14 days

Add to Cart
Continue to cart
Available Offers (2) for Autotek MM-3025.4D Mean Machine
FREE Belva Amp Kit at Checkout!
Add both to cart
Save 30% off an NVX XKIT44 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT44 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item

Earthquake Sound MiNi D3000.4

3000W Peak (800W RMS) Class D Mini Series 4-Channel Car Amplifier

MiNi D3000.4 big
Go to item page Right Arrow Icon of Right Arrow

Earthquake Sound MiNi D3000.4

3000W Peak (800W RMS) Class D Mini Series 4-Channel Car Amplifier

• 120 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 1 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable Amplifier

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $42.50 in rewards to spend later

$425.00

In stock.

Add to Cart

• 120 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 1 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable Amplifier

Diamond Audio MICRO84U

660W RMS Class D Micro8U Series 4-Channel Full Range Car Amplifier

MICRO84U big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio MICRO84U

660W RMS Class D Micro8U Series 4-Channel Full Range Car Amplifier

• 85 watts x 4 channel @ 4 ohm
• 85 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 660 watts
• Class D 2 ohm Stable 4-Channel Amplifier

2+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $50.00 in rewards to spend later

List price $649.99
-23% $499.99

In stock.

Add to Cart
Continue to cart
Available Offers (2) for Diamond Audio MICRO84U
FREE NVX Amp Kit at Checkout!
Add both to cart
Save 30% off an NVX XKIT84 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT84 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item
See all 4 special offers

Cerwin Vega S9600.4D

600W RMS Class D Stroker Series 4 Channel Car Amplifier

S9600.4D big
Go to item page Right Arrow Icon of Right Arrow

Cerwin Vega S9600.4D

600W RMS Class D Stroker Series 4 Channel Car Amplifier

• 140 watts x 4 channel @ 4 ohm
• 170 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

2+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $47.00 in rewards to spend later

1
List price $563.99
-17% $469.99

In stock

Add to Cart
Continue to cart
Available Offers (2) for Cerwin Vega S9600.4D
FREE NVX Amp Kit at Checkout!
Add both to cart
Save 30% off an NVX XKIT44 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT44 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item
Limited time!

DS18 ZR600.4D

2400W Peak (960W RMS) Class D ZR Series 4-Channel Car Amplifier

ZR600.4D big
Go to item page Right Arrow Icon of Right Arrow

DS18 ZR600.4D

2400W Peak (960W RMS) Class D ZR Series 4-Channel Car Amplifier

• 150 watts x 4 channel @ 4 ohm
• 240 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 960 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Save 30% off an NVX XKIT44 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $31.20 in rewards to spend later

$311.95

In stock.

Add to Cart
Available Deal
ZR600.4D main
Offer may end without notice
Continue Shopping Continue to checkout
Eligible items

Shop items below for 30% off up to $100 discount on Save 30% off an NVX Amp Kit!

NVX XKIT44

NVX XKIT44

$119.99

$83.99

$36 Savings!

Add to cart
Limited time!

Cerwin-Vega H440.4D

440W RMS Class D HED Series 4 Channel Car Amplifier

H440.4D big
Go to item page Right Arrow Icon of Right Arrow

Cerwin-Vega H440.4D

440W RMS Class D HED Series 4 Channel Car Amplifier

• 75 watts x 4 channel @ 4 ohm
• 110 watts x 4 channel @ 2 ohm
• Bridged: 220 watts x 2 channel @ 4 ohm
• Total RMS Power: 440 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Save 30% off an NVX XKIT44 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
List price $347.99
-17% $289.99

In stock.

Add to Cart
Available Deal
H440.4D main
Offer may end without notice
Continue Shopping Continue to checkout
Eligible items

Shop items below for 30% off up to $100 discount on Save 30% off an NVX Amp Kit!

NVX XKIT44

NVX XKIT44

$119.99

$83.99

$36 Savings!

Add to cart
See all 4 special offers

Diamond Audio DES400.4D

800W RMS Class D Diamond Elite Series 4-Channel Full Range Car Amplifier

DES400.4D big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DES400.4D

800W RMS Class D Diamond Elite Series 4-Channel Full Range Car Amplifier

• 140 watts x 4 channel @ 4 ohm
• 170 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-Channel Amplifier

2+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $52.00 in rewards to spend later

List price $549.99
-5% $519.99

In stock.

Add to Cart
Continue to cart
Available Offers (2) for Diamond Audio DES400.4D
FREE NVX Amp Kit at Checkout!
Add both to cart
Save 30% off an NVX XKIT84 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT84 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item
See all 4 special offers
Limited time!

Cerwin-Vega XED6004D

500W Peak (480W RMS) Class D XED Series 4 Channel Car Amplifier

XED6004D big
Go to item page Right Arrow Icon of Right Arrow

Cerwin-Vega XED6004D

500W Peak (480W RMS) Class D XED Series 4 Channel Car Amplifier

• 80 watts x 4 channel @ 4 ohm
• 120 watts x 4 channel @ 2 ohm
• Bridged: 220 watts x 2 channel @ 4 ohm
• Total RMS Power: 480 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Save 30% off an NVX XKIT44 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
List price $227.99
-17% $189.99

In stock.

Add to Cart
Available Deal
XED6004D main
Offer may end without notice
Continue Shopping Continue to checkout
Eligible items

Shop items below for 30% off up to $100 discount on Save 30% off an NVX Amp Kit!

NVX XKIT44

NVX XKIT44

$119.99

$83.99

$36 Savings!

Add to cart

MB Quart RA1-280.4

280W RMS Class D Reference Series 4 Channel Car Amplifier

RA1-280.4 big
Go to item page Right Arrow Icon of Right Arrow

MB Quart RA1-280.4

280W RMS Class D Reference Series 4 Channel Car Amplifier

• 50 watts x 4 channel @ 4 ohm
• 70 watts x 4 channel @ 2 ohm
• Total RMS Power: 280 watts
• Class D 2 ohm Stable 4-Channel Amplifier

2+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $26.25 in rewards to spend later

List price $290.00
-9% $262.50

Available

Ships in 10-14 days

Add to Cart
Continue to cart
Available Offers (2) for MB Quart RA1-280.4
FREE Belva Amp Kit at Checkout!
Add both to cart
Save 30% off an NVX XKIT44 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT44 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item
Limited time!

Hertz Venezia V4

1160W RMS Class D Venezia Series 4-Channel Full Range Marine Amplifier

Venezia V4 big
Go to item page Right Arrow Icon of Right Arrow

Hertz Venezia V4

1160W RMS Class D Venezia Series 4-Channel Full Range Marine Amplifier

• 4 Channel: 160 watts x 4 channel @ 4 ohms
• 4 Channel: 290 watts x 4 channel @ 4 ohms
• 3 Channel: 160 watts x 2 channel @ 4 ohms + 580 watts x 1 channel @ 4 ohms
• 3 Channel: 290 watts x 2 channel @ 2 ohms + 580 watts x 1 channel @ 4 ohms
• 2 Channel: 580 watts x 2 channel
• Total RMS Power: 1160 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Save 30% off an NVX XKIT44 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $110.00 in rewards to spend later

List price $1255.00
-12% $1,099.99

Available

Ships in 10-14 days

Add to Cart
Available Deal
Venezia V4 main
Offer may end without notice
Continue Shopping Continue to checkout
Eligible items

Shop items below for 30% off up to $100 discount on Save 30% off an NVX Amp Kit!

NVX XKIT44

NVX XKIT44

$119.99

$83.99

$36 Savings!

Add to cart

Diamond Audio HX600.4

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

HX600.4 big
Go to item page Right Arrow Icon of Right Arrow

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

2+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $80.00 in rewards to spend later

List price $849.99
-6% $799.99

In stock

Only 2 Left!

Add to Cart
Continue to cart
Available Offers (2) for Diamond Audio HX600.4
FREE NVX Amp Kit at Checkout!
Add both to cart
Save 30% off an NVX XKIT84 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT84 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item
See all 4 special offers

Diamond Audio HX480.4

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

HX480.4 big
Go to item page Right Arrow Icon of Right Arrow

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

2+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $58.00 in rewards to spend later

List price $629.99
-8% $579.99

In stock.

Add to Cart
Continue to cart
Available Offers (2) for Diamond Audio HX480.4
FREE NVX Amp Kit at Checkout!
Add both to cart
Save 30% off an NVX XKIT84 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT84 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item
See all 4 special offers
Limited time!

DS18 H-KO340/RD

2200W RMS Class D Hooligan Series 4-Channel Car Amplifier (Red)

H-KO340/RD big
Go to item page Right Arrow Icon of Right Arrow

DS18 H-KO340/RD

2200W RMS Class D Hooligan Series 4-Channel Car Amplifier (Red)

• 300 watts x 4 channel @ 4 ohm
• 550 watts x 4 channel @ 2 ohm
• Bridged: 1000 watts x 2 channel @ 4 ohm
• Total RMS Power: 2200 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Save 30% off an NVX XKIT04 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $72.00 in rewards to spend later

List price $863.99
-17% $719.95

Available

Ships in 10-14 days

Add to Cart
Available Deal
H-KO340/RD main
Offer may end without notice
Continue Shopping Continue to checkout
Eligible items

Shop items below for 30% off up to $100 discount on Save 30% off an NVX Amp Kit!

NVX XKIT04

NVX XKIT04

$192.98

$135.09

$57.89 Savings!

Add to cart
Prev 5 6 7 8 9 Next

Items per page: 20 40 60

    Clear all

    FAQ Frequently asked questions in 4-Channel Amplifiers

    4 Channel Amplifiers Frequently Asked Questions (FAQ)
    A 4-channel amplifier is a type of car audio amplifier that features four separate channels, each capable of powering a speaker or a pair of speakers. By distributing power across four channels, you can connect your front and rear speakers to the amplifier, significantly enhancing the overall sound quality and clarity in your car audio system. With a 4-channel amplifier, you can achieve a balanced soundstage, where the music seems to come from different directions, providing an immersive listening experience. Additionally, these amplifiers often come with adjustable crossovers and gain controls, allowing you to fine-tune the audio output for each set of speakers, optimizing the sound reproduction according to your preferences.
    Yes, many 4-channel amplifiers are bridgeable, allowing you to combine two channels to power a single speaker or subwoofer with higher output power. This bridging capability is useful if you have a pair of high-powered front speakers or a powerful subwoofer that requires more power than a single channel can provide. However, it's essential to check the amplifier's specifications and instructions to confirm its bridgeability and the recommended bridging configurations. Not all 4-channel amplifiers support bridging, and improper bridging can damage the amplifier or connected speakers. If you are unsure about bridging your 4-channel amplifier, consult the amplifier's manual or reach out to Sonic Electronix customer support for expert assistance.
    To select the right 4-channel amplifier for your speakers, consider their power handling capabilities and impedance. First, identify the RMS power rating of your front and rear speakers. The amplifier's RMS power output per channel should match or slightly exceed the RMS power rating of your speakers to ensure optimal performance without distortion. Next, check the impedance (measured in ohms) of your speakers, as well as the amplifier's minimum and maximum impedance ratings. Match the speaker impedance with the appropriate amplifier channels to prevent compatibility issues. For example, if your speakers have an impedance of 4 ohms, make sure the amplifier channels for those speakers can handle a 4-ohm load. Paying attention to these specifications ensures a seamless integration of your speakers with the 4-channel amplifier.
    Yes, a 4-channel amplifier can be used to power additional speakers, such as tweeters or coaxial speakers, in your car audio system. Beyond the front and rear speakers, a 4-channel amplifier has the flexibility to accommodate additional speaker types, provided that the total load impedance and power requirements of the amplifier's channels are within its specifications. For example, if your 4-channel amplifier has two unused channels, you can use them to power additional speakers for improved sound coverage and audio performance. Be cautious not to overload the amplifier, and ensure that the speakers' impedance and power handling align with the available channels to avoid damaging the amplifier or speakers. If you have questions about expanding your audio system with a 4-channel amplifier, seek expert advice from Sonic Electronix.
    A proper and safe installation of a 4-channel amplifier is essential for optimal performance and to prevent any electrical or mechanical issues. To ensure a successful installation, start by reading the amplifier's user manual thoroughly, as it contains specific instructions and guidelines for installation. Follow all safety precautions and use the appropriate wiring and connectors rated for the amplifier's power output. Securely mount the amplifier in a well-ventilated area, away from heat sources, and avoid placing it on carpeted surfaces. Route and secure all cables carefully to avoid interference and potential hazards. Double-check all connections to ensure they are tight and secure. If you are not confident in installing the amplifier yourself, consider seeking professional installation services to ensure a safe and expertly done installation that optimizes the performance of your 4-channel amplifier and car audio system.
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    Save up to 10 different vehicles in your garage
    Vehicle
    Store     Delete

    2023 GMC Acadia

    2007 Jeep Commander

    2005 Lexus RX330

    2005 Mazda 6

    2002 Toyota MR2 Spyder

    2011 Ford E Series

    2007 Mercedes-Benz AMG E-Class

    1993 Mitsubishi Eclipse

    2000 Ford Ranger

    2005 GMC Safari

    Vehicle
    Store     Delete

    2017 Can-Am Defender HD10

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm

    Cancel

    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue

    Cancel

    Shop your 2023 Acadia
    Why Use a Vehicle Fit Guide?
    Change vehicle | Shop without vehicle
    Whoa! Slow down. Add your details below!
    additional information required
    Add vehicle details to confirm fitment
    Ignore fitment details
    Find stereos and more that work -- fast.

    Additional information:

    Remove

    Can't find your vehicle? Click here and we'll help.

    Where to find vehicle info

    Go to Fitment

    Didn't find your car?

    Submit your details and we'll help!
    Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon
    Back

    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

    Back
    Track your order
    Call our experts
    Support Center
    Return & Exchanges
    Follow on Instagram Instagram logo
    Subscribe on YouTube YouTube logo