Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In

2003 Audi A6

Change vehicle | Remove vehicle

Single, 1-channel monoblock sub amplifiers for when you add a sub

Overview Upgrade your Stereo 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 2003 Audi A6

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.

Filters
Brand New ✕
Clear Filters
Reset Done
Product Type
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.
Punch Series (13)
FRP Series (12)
Power Series (10)
Prime Series (10)
Apocalypse Atom Pro Series (8)
CVP Series (7)
SALT Series (7)
Brutus BRL Series (6)
BX Series (6)
Competition Series (6)
CX Series (6)
Godfather Series (6)
Hooligan Series (6)
Reference Series (6)
SIA Series (6)
Stroker Pro Series (6)
Epic Series (5)
SAE Series (5)
Stroker RPM Series (5)
Brutus BG Series (4)
Club Series (4)
LX Series (4)
MA Series (4)
Machete Series (4)
RS Series (4)
SMD Series (4)
SXE Series (4)
V Series (4)
V-Drive Series (4)
XC-Series (4)
XED Series (4)
CRA Series (3)
DMD Series (3)
Elite Series (3)
eXcelon Series (3)
Formula Series (3)
Ground Pounder Series (3)
HEX Series (3)
Hydro Series (3)
iON Series (3)
JD Series (3)
Mini Series (3)
Nautic Series (3)
RD Series (3)
SAM Series (3)
Thunder Series (3)
XDM Series (3)
XQ Series (3)
ZR Series (3)
ACX Series (2)
Altitude Series (2)
Apocalypse Series (2)
Apocalypse Sport Series (2)
COLOSSUS Mini Series (2)
Diamond Elite Series (2)
Excelon Reference Series (2)
EXL Series (2)
EXL-P Series (2)
GM Series (2)
HD Series (2)
JA Series (2)
M2 Series (2)
MVi Series (2)
MX Series (2)
N-Series (2)
Power Pack Series (2)
PowerHouse Shredder Series (2)
Premium Pro Series (2)
PXA Series (2)
R-Series (2)
S Series (2)
SFB Series (2)
Stroker Series (2)
Terminator Series (2)
VEGA Series (2)
VFL Comp Series (2)
VFL Rebel Series (2)
VFL Stealth Series (2)
VXi Series (2)
Alpha Series (1)
AP Series (1)
BB Series (1)
Colossus Classic Series (1)
COLOSSUS Series (1)
Compact Mean Machine Series (1)
CVPM Series (1)
Discus Series (1)
DPower Series (1)
DRVN Series (1)
DXM Series (1)
EV Series (1)
Excelon Motorsports Series (1)
FX Series (1)
Gen-X (1)
GM Digital Series (1)
HCCA Series (1)
HCP Series (1)
HED Series (1)
HMP Series (1)
HRPM Series (1)
HTM Series (1)
HXM Series (1)
Key Series (1)
KM Series (1)
KPX Series (1)
KXM Series (1)
LC Series (1)
M Series (1)
M5 Series (1)
Marine Series (1)
MDX Series (1)
Mean Machine Series (1)
MHD Series (1)
Micro8U Series (1)
MicroV2 Series (1)
MINI BANG Series (1)
MotorSport Series (1)
MUD Series (1)
Performance Series (1)
Picasso-Nano Series (1)
Primo Series (1)
Primus Series (1)
PS Series (1)
Q-Series (1)
Reserve Series (1)
RTX Series (1)
SAEv4 Series (1)
Sinister Series (1)
SPL Show Series (1)
Stage GT Series (1)
Status Series (1)
Stealth Bomber Series (1)
Stealth STX Series (1)
Street Reference (1)
Venezia Series (1)
Warhorse Series (1)
X Series (1)
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.
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
filter-icon Filters & Sort
Limited time!

Wet Sounds Sinister-SDX2500

2500W RMS Class D Sinister Series Monoblock Marine Amplifier with Bass Remote

Sinister-SDX2500 big
Go to item page Right Arrow Icon of Right Arrow

Wet Sounds Sinister-SDX2500

2500W RMS Class D Sinister Series Monoblock Marine Amplifier with Bass Remote

• 1000 watts x 1 channel @ 4 ohm
• 1700 watts x 1 channel @ 2 ohm
• 2500 watts x 1 channel @ 1 ohm
• Total RMS Power: 2500 watts
• Class D 4 ohm Stable Monoblock Marine Amplifier

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

VIP Product Get $157.50 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $2099.99
Save $525.00
-25% $1,574.99

Available

Ships in 10-14 days

Add to Cart

• 1000 watts x 1 channel @ 4 ohm
• 1700 watts x 1 channel @ 2 ohm
• 2500 watts x 1 channel @ 1 ohm
• Total RMS Power: 2500 watts
• Class D 4 ohm Stable Monoblock Marine Amplifier

Cerwin-Vega XED6001D

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

XED6001D big
Go to item page Right Arrow Icon of Right Arrow

Cerwin-Vega XED6001D

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

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

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $203.99
-17% $169.99

Available

Ships in 10-14 days

Add to Cart
Continue to cart
Available Offers (2) for Cerwin-Vega XED6001D
FREE Belva Amp Kit at Checkout!
Add both to cart
Save 30% on an NVX XKIT42 Amp Kit with Purchase! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT42 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item
See all 6 special offers
NVX - Worth the Envy - Direct to Consumer Car Audio

Earthquake Sound Mini D1000

1000W Peak (600W RMS) Class D MiNi Series Monoblock Car Amplifier

Mini D1000 big
Go to item page Right Arrow Icon of Right Arrow

Earthquake Sound Mini D1000

1000W Peak (600W RMS) Class D MiNi Series Monoblock Car Amplifier

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

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

VIP Product Get $22.90 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

4
$229.00

In stock.

Add to Cart
Continue to cart
Available Offers (2) for Earthquake Sound Mini D1000
FREE Belva Amp Kit at Checkout!
Add both to cart
Save 30% off an NVX XKIT82 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT82 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item
See all 6 special offers

MB Quart FA2-2000.1

2000W RMS Class D Formula Series Monoblock Car Amplifier with Bass Remote

FA2-2000.1 big
Go to item page Right Arrow Icon of Right Arrow

MB Quart FA2-2000.1

2000W RMS Class D Formula Series Monoblock Car Amplifier with Bass Remote

• 500 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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

VIP Product Get $24.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

2
List price $249.99
$239.99

Available

Ships in 10-14 days

Add to Cart
Continue to cart
Available Offers (2) for MB Quart FA2-2000.1
FREE Belva Amp Kit at Checkout!
Add both to cart
Save 30% on an NVX XKIT42 Amp Kit with Purchase! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT42 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item
See all 5 special offers
Limited time!

Rockford Fosgate Punch Marine PM1000X1bd

1000W RMS Class BD Punch Series Monoblock Marine Amplifier

PM1000X1bd big
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate Punch Marine PM1000X1bd

1000W RMS Class BD Punch Series Monoblock Marine Amplifier

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class BD 1 ohm Stable Monoblock Amplifier

FREE NVX Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $69.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$689.99

Available

Ships in 10-14 days

Add to Cart

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class BD 1 ohm Stable Monoblock Amplifier

Limited time!

Wet Sounds STX MICRO-1

600W Peak Class D Stealth STX Series Monoblock Marine and Powersports Amplifier

STX Micro-1 big
Go to item page Right Arrow Icon of Right Arrow

Wet Sounds STX MICRO-1

600W Peak Class D Stealth STX Series Monoblock Marine and Powersports Amplifier

• @ 4 ohm
• @ 2 ohm
• Total RMS Power:
• Class D 1 ohm Stable Monoblock Amplifier

FREE NVX Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $43.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$429.99

Available

Ships in 10-14 days

Add to Cart
Like New from: $365.49

• @ 4 ohm
• @ 2 ohm
• Total RMS Power:
• Class D 1 ohm Stable Monoblock Amplifier

Limited time!

Earthquake Sound PowerHouse Shredder PHS3500.1

4000W RMS Class D PowerHouse Shredder Series Monoblock Car Amplifier with Bass Remote

PHS3500.1 big
Go to item page Right Arrow Icon of Right Arrow

Earthquake Sound PowerHouse Shredder PHS3500.1

4000W RMS Class D PowerHouse Shredder Series Monoblock Car Amplifier with Bass Remote

• 1700 watts x 1 channel @ 4 ohm
• 2700 watts x 1 channel @ 2 ohm
• Total RMS Power: 4000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $47.90 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$479.00

In stock.

Add to Cart
Available Deal
PHS3500.1 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 XKIT02

NVX XKIT02

$179.99

$125.99

$54 Savings!

Add to cart
See all 6 special offers

Cerwin-Vega XED3001D

300W RMS Class D XED Series Monoblock Car Amplifier

XED3001D big
Go to item page Right Arrow Icon of Right Arrow

Cerwin-Vega XED3001D

300W RMS Class D XED Series Monoblock Car Amplifier

• 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

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

VIP Product Get $13.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $155.99
-17% $129.99

In stock.

Add to Cart
Continue to cart
Available Offers (2) for Cerwin-Vega XED3001D
FREE Belva Amp Kit at Checkout!
Add both to cart
Save 30% on an NVX XKIT42 Amp Kit with Purchase! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT42 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item
See all 5 special offers
Limited time!

DS18 SMD-5000.1D

5000W RMS Class D SMD Series Monoblock Car Amplifier with Bass Remote, VM-1 Voltmeter, and Digital LED Lights

SMD-5000.1D big
Go to item page Right Arrow Icon of Right Arrow

DS18 SMD-5000.1D

5000W RMS Class D SMD Series Monoblock Car Amplifier with Bass Remote, VM-1 Voltmeter, and Digital LED Lights

• 2000 watts x 1 channel @ 4 ohm
• 3500 watts x 1 channel @ 2 ohm
• 5000 watts x 1 channel @ 1 ohm
• Total RMS Power: 5000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $130.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
$1,299.95

Available

Ships in 10-14 days

Add to Cart
Available Deal
SMD-5000.1D 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 XKIT02

NVX XKIT02

$179.99

$125.99

$54 Savings!

Add to cart
Used from: $1,169.95
See all 5 special offers
Limited time!

DS18 FRP-2.5K/RD

2500W RMS Class D FRP Series Monoblock Car Amplifier with Bass Remote (Red)

FRP-2.5K/RD big
Go to item page Right Arrow Icon of Right Arrow

DS18 FRP-2.5K/RD

2500W RMS Class D FRP Series Monoblock Car Amplifier with Bass Remote (Red)

• 700 watts x 1 channel @ 4 ohm
• 1300 watts x 1 channel @ 2 ohm
• 2500 watts x 1 channel @ 1 ohm
• Total RMS Power: 2500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $431.99
-17% $359.95

In stock

Only 2 Left!

Add to Cart
Available Deal
FRP-2.5K/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 XKIT02

NVX XKIT02

$179.99

$125.99

$54 Savings!

Add to cart
See all 6 special offers
Limited time!

DS18 H-KO8

8000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote

H-KO8 big
Go to item page Right Arrow Icon of Right Arrow

DS18 H-KO8

8000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote

• 2500 watts x 1 channel @ 4 ohm
• 4800 watts x 1 channel @ 2 ohm
• 8000 watts x 1 channel @ 1 ohm
• Total RMS Power: 8000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $156.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$1,559.95

In stock.

Add to Cart
Available Deal
H-KO8 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 XKIT02

NVX XKIT02

$179.99

$125.99

$54 Savings!

Add to cart
See all 6 special offers
Limited time!

American Bass VFL Comp 20K (VFLCOMP-20K)

20000W RMS Class D VFL Comp Series Monoblock Car Amplifier (with Bass Remote)

VFLCOMP-20K big
Go to item page Right Arrow Icon of Right Arrow

American Bass VFL Comp 20K (VFLCOMP-20K)

20000W RMS Class D VFL Comp Series Monoblock Car Amplifier (with Bass Remote)

• 7600 watts x 1 channel @ 4 ohm
• 13000 watts x 1 channel @ 2 ohm
• 20000 watts x 1 channel @ 1 ohm
• Total RMS Power: 20000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $348.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $4989.60
-30% $3,480.00

In stock.

Add to Cart
Available Deal
VFLCOMP-20K 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 XKIT02

NVX XKIT02

$179.99

$125.99

$54 Savings!

Add to cart
See all 6 special offers
Limited time!

DS18 FRP-3.5K/RD

3500W RMS Class D FRP Series Monoblock Car Amplifier with Bass Remote (Red)

FRP-3.5K/RD big
Go to item page Right Arrow Icon of Right Arrow

DS18 FRP-3.5K/RD

3500W RMS Class D FRP Series Monoblock Car Amplifier with Bass Remote (Red)

• 1000 watts x 1 channel @ 4 ohm
• 2000 watts x 1 channel @ 2 ohm
• 3500 watts x 1 channel @ 1 ohm
• Total RMS Power: 3500 watts
• Class D 1 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $42.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $503.99
-17% $419.95

In stock.

Add to Cart
Available Deal
FRP-3.5K/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 XKIT02

NVX XKIT02

$179.99

$125.99

$54 Savings!

Add to cart
See all 6 special offers
Limited time!

Earthquake Sound PowerHouse Shredder PHS5000.1

5500W RMS Class D PowerHouse Shredder Series Monoblock Car Amplifier with Bass Remote

PHS5000.1 big
Go to item page Right Arrow Icon of Right Arrow

Earthquake Sound PowerHouse Shredder PHS5000.1

5500W RMS Class D PowerHouse Shredder Series Monoblock Car Amplifier with Bass Remote

• 2000 watts x 1 channel @ 4 ohm
• 3500 watts x 1 channel @ 2 ohm
• Total RMS Power: 5500 watts
• Class D 1 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $69.90 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$699.00

In stock.

Add to Cart
Available Deal
PHS5000.1 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 XKIT02

NVX XKIT02

$179.99

$125.99

$54 Savings!

Add to cart
See all 6 special offers
Limited time!

JBL Marine A1000 (JBLMA1000AM)

2000W Peak (1000W RMS) Class D Marine Series Monoblock Amplifier with Bass Remote

JBLMA1000AM big
Go to item page Right Arrow Icon of Right Arrow

JBL Marine A1000 (JBLMA1000AM)

2000W Peak (1000W RMS) Class D Marine Series Monoblock Amplifier with Bass Remote

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

FREE NVX Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $45.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $599.95
Save $150.00
-25% $449.95

Available

Ships in 10-14 days

Add to Cart

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

Diamond Audio DMD1000.1D

1000W RMS Class D DMD Series Monoblock Car Amplifier (with Bass Remote)

DMD1000.1D big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DMD1000.1D

1000W RMS Class D DMD Series Monoblock Car Amplifier (with Bass Remote)

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$469.99

In stock

Add to Cart
Continue to cart
Available Offers (2) for Diamond Audio DMD1000.1D
FREE NVX Amp Kit at Checkout!
Add both to cart
Save 30% on an NVX XKIT42 Amp Kit with Purchase! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT42 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item
See all 6 special offers
Limited time!

American Bass VFL REBEL 8000.1

8000W RMS Class D VFL Rebel Series Monoblock Full Range Amplifier

VFL REBEL 8000.1 big
Go to item page Right Arrow Icon of Right Arrow

American Bass VFL REBEL 8000.1

8000W RMS Class D VFL Rebel Series Monoblock Full Range Amplifier

• 2090 watts x 1 channel @ 4 ohm
• 4300 watts x 1 channel @ 2 ohm
• 8000 watts x 1 channel @ 1 ohm
• Total RMS Power: 8000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $62.90 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $695.00
-9% $629.00

In stock.

Add to Cart
Available Deal
VFL REBEL 8000.1 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 XKIT02

NVX XKIT02

$179.99

$125.99

$54 Savings!

Add to cart
See all 5 special offers
Limited time!

Kicker PXA600.1 (48PXA6001)

850W Peak (600W RMS) Class D PXA Series Monoblock Marine and Powersports Amplifier

PXA600.1 big
Go to item page Right Arrow Icon of Right Arrow

Kicker PXA600.1 (48PXA6001)

850W Peak (600W RMS) Class D PXA Series Monoblock Marine and Powersports Amplifier

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

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $429.99
Save $110.03
-26% $319.96

In stock

Only 1 Left!

Add to Cart

Crunch DR-3725.1D

3725W Peak Class D V-Drive Series Monoblock Car Amplifier with Bass Remote

DR-3725.1D big
Go to item page Right Arrow Icon of Right Arrow

Crunch DR-3725.1D

3725W Peak Class D V-Drive Series Monoblock Car Amplifier with Bass Remote

• 930 watts x 1 channel @ 4 ohm
• 1860 watts x 1 channel @ 2 ohm
• Total peak power output: 3725 watts
• Class D 1 ohm Stable 1 - Mono Amplifier

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

VIP Product Get $15.60 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $159.99
$155.99

In stock

Only 1 Left!

Add to Cart
Continue to cart
Available Offers (2) for Crunch DR-3725.1D
FREE Belva Amp Kit at Checkout!
Add both to cart
Save 30% on an NVX XKIT42 Amp Kit with Purchase! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT42 Amp Kit! No code needed — discount applies automatically at checkout.
Select your other item
See all 5 special offers
Limited time!

Diamond Audio HXM800.1D

800W RMS Class-D HXM Series Monoblock Marine and Powersports Amplifier

HXM800.1D big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio HXM800.1D

800W RMS Class-D HXM Series Monoblock Marine and Powersports Amplifier

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

FREE NVX Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $60.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$599.99

In stock

Add to Cart

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

NVX - Worth the Envy - Direct to Consumer Car Audio
Prev 11 12 13 14 15 Next

Items per page: 20 40 60

    Clear all
    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?
    FAQ for Monoblock Sub Amplifiers in 2003 A6

    Q: Can I upgrade or change the Monoblock Sub Amplifiers in 2003 Audi A6?

    A: Yes this page includes all the best Monoblock Sub Amplifiers that work in your A6.

    Save up to 10 different vehicles in your garage
    Vehicle
    Store     Delete

    1980 MG Midget

    2003 Audi A6

    1983 Volkswagen Jetta

    1981 Dodge Colt

    1981 Audi 4000 S

    2012 Mercedes-Benz GL-Class

    2002 Oldsmobile Bravada

    1981 Jaguar XJ6

    2004 BMW 760i

    1979 Datsun 620

    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 2003 A6
    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