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

2009 Triumph Rocket III

Change vehicle | Remove vehicle

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

Overview Upgrade your Speakers Add an Amplifier Digital Sound Processors Audio Installation & Accessories Independance Day Sale

Amplifiers for Powering a Sub for 2009 Triumph Rocket III

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
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.
Power Series (17)
Punch Series (16)
Prime Series (14)
FRP Series (12)
Apocalypse Atom Pro Series (8)
BX Series (7)
CVP Series (7)
CX Series (7)
SALT Series (7)
Brutus BRL Series (6)
Competition Series (6)
Godfather Series (6)
HD Series (6)
Hooligan Series (6)
JD Series (6)
RD Series (6)
Reference Series (6)
SIA Series (6)
SMD Series (6)
Stroker Pro Series (6)
V Series (6)
XDM Series (6)
Club Series (5)
Epic Series (5)
SAE Series (5)
Stroker RPM Series (5)
Brutus BG Series (4)
LX Series (4)
MA Series (4)
Machete Series (4)
Power Pack Series (4)
RS Series (4)
SXE Series (4)
V-Drive Series (4)
VXi 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)
Mini Series (3)
MX Series (3)
Nautic Series (3)
R-Series (3)
SAM Series (3)
Thunder Series (3)
VEGA Series (3)
XQ Series (3)
ZR Series (3)
ACX Series (2)
Altitude Series (2)
Apocalypse Series (2)
Apocalypse Sport Series (2)
BB Series (2)
COLOSSUS Mini Series (2)
Diamond Elite Series (2)
Excelon Reference Series (2)
EXL Series (2)
EXL-P Series (2)
GM Series (2)
JA Series (2)
M2 Series (2)
MVi Series (2)
N-Series (2)
PowerHouse Shredder Series (2)
Premium Pro Series (2)
PXA Series (2)
S Series (2)
SFB Series (2)
Stealth STX Series (2)
Stroker Series (2)
Terminator Series (2)
VFL Comp Series (2)
VFL Rebel Series (2)
VFL Stealth Series (2)
Alpha Series (1)
AP Series (1)
BD 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)
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
Availability
filter-icon Filters & Sort
Limited time!

NVX VADM1 with Amplifier Wiring Kit

500W RMS Class D Monoblock Amplifier with Bass Remote

XKIT82,VADM1 big
Go to item page Right Arrow Icon of Right Arrow

NVX VADM1 with Amplifier Wiring Kit

500W RMS Class D Monoblock Amplifier with Bass Remote

• 500 Watt True RMS Output
• Marine Certified Monoblock Micro Class D Amplifier
• 180W x 1-Chan. @ 4 ohm
• 320W x 1-Chan. @ 2 ohm
• 500W x 1-Chan. @ 1 ohm
• Extremely Small Footprint
• Includes Amplifier Wiring Kit

Independance Deals Save 10% at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

77
List price $335.98
-32% $229.98

In stock

Add to Cart

• 500 Watt True RMS Output
• Marine Certified Monoblock Micro Class D Amplifier
• 180W x 1-Chan. @ 4 ohm
• 320W x 1-Chan. @ 2 ohm
• 500W x 1-Chan. @ 1 ohm
• Extremely Small Footprint
• Includes Amplifier Wiring Kit

Limited time!

DS18 Hydro NXL-X1000.1D

2000W Peak Class D HYDRO Series Monoblock Marine and Powersports Subwoofer Amplifier

NXL-X1000.1D big
Go to item page Right Arrow Icon of Right Arrow

DS18 Hydro NXL-X1000.1D

2000W Peak Class D HYDRO Series Monoblock Marine and Powersports Subwoofer Amplifier

• 350 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• 100 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• IPX6 waterproof rating
• Class D 1 ohm Stable Monoblock Amplifier

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

VIP Product Get $51.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $599.95
Save $89.99
-15% $509.96

In stock.

Add to Cart

• 350 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• 100 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• IPX6 waterproof rating
• Class D 1 ohm Stable Monoblock Amplifier

Limited time!

Deaf Bonce Apocalypse ASA 6000.1

6000W RMS Class D Apocalypse Sport Series Monoblock Car Amplifier

Apocalypse ASA 6000.1 big
Go to item page Right Arrow Icon of Right Arrow

Deaf Bonce Apocalypse ASA 6000.1

6000W RMS Class D Apocalypse Sport Series Monoblock Car Amplifier

• 2150 watts x 1 channel @ 4 ohm
• 3135 watts x 1 channel @ 2 ohm
• 6050 watts x 1 channel @ 1 ohm
• Bridged: 12100 watts @ 2 ohm
• Total RMS Power: 6000 watts
• Class D 1 ohm Stable Monoblock Subwoofer 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 $94.99 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$949.90

Available

Ships in 10-14 days

Add to Cart
Available Deal
Apocalypse ASA 6000.1 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!

DS18 FRP-8K/BL

9000W Peak (8000W RMS) Class D FRP Series Monoblock Amplifier with Bass Remote (Blue)

FRP-8K/BL big
Go to item page Right Arrow Icon of Right Arrow

DS18 FRP-8K/BL

9000W Peak (8000W RMS) Class D FRP Series Monoblock Amplifier with Bass Remote (Blue)

• 2500 watts x 1 channel @ 4 ohm
• 5000 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 $76.50 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $899.95
Save $134.99
-15% $764.96

Available

Ships in 10-14 days

Add to Cart
Available Deal
FRP-8K/BL 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

Diamond Audio DMD500.1D

500W RMS Class D DMD Series Monoblock Car Amplifier (with Bass Remote)

DMD500.1D big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DMD500.1D

500W RMS Class D DMD Series Monoblock Car Amplifier (with Bass Remote)

• 340 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

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

VIP Product Get $32.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$319.99

In stock

Add to Cart
Continue to cart
Available Offers (2) for Diamond Audio DMD500.1D
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 6 special offers
Limited time!

Cerwin Vega SRPM1000.1DW

1000W RMS Class D Stroke RPM Series Monoblock Marine Amplifier with Bass Remote (White)

SRPM1000.1DW big
Go to item page Right Arrow Icon of Right Arrow

Cerwin Vega SRPM1000.1DW

1000W RMS Class D Stroke RPM Series Monoblock Marine Amplifier with Bass Remote (White)

• 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

FREE NVX Amp Kit at Checkout!
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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $719.99
-31% $499.99

In stock.

Add to Cart
Limited time!

JL Audio MV1000/1

1000W RMS MVi Series Marine Class-D Monoblock Marine Amplifier

MV1000/1 big
Go to item page Right Arrow Icon of Right Arrow

JL Audio MV1000/1

1000W RMS MVi Series Marine Class-D Monoblock Marine Amplifier

• 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 $125.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$1,249.99

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

Crunch DR-2725.1D

2725W Peak Class D V-Drive Series Monoblock Car Amplifier (with Bass Remote)

DR-2725.1D big
Go to item page Right Arrow Icon of Right Arrow

Crunch DR-2725.1D

2725W Peak Class D V-Drive Series Monoblock Car Amplifier (with Bass Remote)

• 1360 watts x 1 channel @ 4 ohm
• 2725 watts x 1 channel @ 2 ohm
• Total peak power output: 2725 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 $13.10 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $139.99
-6% $130.99

In stock

Only 3 Left!

Add to Cart
Continue to cart
Available Offers (2) for Crunch DR-2725.1D
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 4 special offers
Lowest price in 30 days

JL Audio RD1500/1 (Open Box, Great)

1500W RMS Class D RD Series Monoblock Car Amplifier

RD1500/1 big
Go to item page Right Arrow Icon of Right Arrow

JL Audio RD1500/1 (Open Box, Great)

1500W RMS Class D RD Series Monoblock Car Amplifier

• 750 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 3 ohm
• 1500 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

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

20
List price $729.99
-22% $567.44

In stock

Add to Cart
Limited time!

MTX PS800.1

800W RMS Class D PS Series Monoblock Powersports Amplifier with Bass Remote

PS800.1 big
Go to item page Right Arrow Icon of Right Arrow

MTX PS800.1

800W RMS Class D PS Series Monoblock Powersports Amplifier with Bass Remote

• 400 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

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

VIP Product Get $40.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $549.95
Save $149.99
-27% $399.96

Available

Ships in 10-14 days

Add to Cart

• 400 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

Cerwin Vega B51

1000W Peak (500W RMS) Class D Stealth Bomber Series Monoblock Car Amplifier with Bass Remote

B51 big
Go to item page Right Arrow Icon of Right Arrow

Cerwin Vega B51

1000W Peak (500W RMS) Class D Stealth Bomber Series Monoblock Car Amplifier with Bass Remote

• 175 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 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 $30.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $359.99
-17% $299.99

In stock.

Add to Cart
Continue to cart
Available Offers (2) for Cerwin Vega B51
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
Limited time!

Diamond Audio HX1600.1D

1600W RMS Class D Hex Series Monoblock Car Amplifier with Bass Remote

HX1600.1D big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio HX1600.1D

1600W RMS Class D Hex Series Monoblock Car Amplifier with Bass Remote

• 700 watts x 1 channel @ 4 ohm
• 1150 watts x 1 channel @ 2 ohm
• 1600 watts x 1 channel @ 1 ohm
• Total RMS Power: 1600 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 $95.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $959.99
$949.99

In stock.

Add to Cart
Available Deal
HX1600.1D 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
See all 6 special offers

MTX MUD600-1

650W RMS Class D MUD Series Monoblock Marine and Powersports Amplifier

MUD600-1 big
Go to item page Right Arrow Icon of Right Arrow

MTX MUD600-1

650W RMS Class D MUD Series Monoblock Marine and Powersports Amplifier

• 300 watts x 1 channel @ 4 ohm
• 650 watts x 1 channel @ 2 ohm
• Total RMS Power: 650 watts
• Class D 2 ohm Stable Monoblock Amplifier

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

VIP Product Get $39.99 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$399.94

Available

Ships in 10-14 days

Add to Cart

• 300 watts x 1 channel @ 4 ohm
• 650 watts x 1 channel @ 2 ohm
• Total RMS Power: 650 watts
• Class D 2 ohm Stable Monoblock Amplifier

Limited time!

NVX VAD17001 (Open Box, Good)

1700W RMS Class D Monoblock Car/Marine/Powersports Amplifier with Bass Remote (Marine Certified)

VAD17001v2 big
Go to item page Right Arrow Icon of Right Arrow

NVX VAD17001 (Open Box, Good)

1700W RMS Class D Monoblock Car/Marine/Powersports Amplifier with Bass Remote (Marine Certified)

• RMS: 800 x 1 @ 4 ohm, 1350W x 1 @ 2 ohm, 1700W x 1 @ 1 ohm
• Total RMS Power: 1700W
• CEA-2006 Compliant
• Wired Bass Remote Included
• Efficient Class D Design
• Dimensions: 10.1"W x 5.4"D x 2.0H

Save 30% on an NVX XKIT42 Amp Kit with Purchase!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

109
List price $399.99
-56% $177.27

In stock

Add to Cart
Available Deal
VAD17001v2 main
Offer may end without notice
Continue Shopping Continue to checkout
Eligible items

Shop items below for 30% off up to $100 discount on an NVX XKIT42 Amp Kit

NVX XAPK4 + XIV25 (XKIT42 Sub)

NVX XAPK4 + XIV25 (XKIT42 Sub)

$109.99

$76.99

$33 Savings!

Add to cart
Limited time!

DS18 SXE-1500.1D/BK

1500W Peak (500W RMS) Class D SXE Series Monoblock Car Amplifier with Bass Remote (Black)

SXE-1500.1D/BK big
Go to item page Right Arrow Icon of Right Arrow

DS18 SXE-1500.1D/BK

1500W Peak (500W RMS) Class D SXE Series Monoblock Car Amplifier with Bass Remote (Black)

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

Save 30% on an NVX XKIT42 Amp Kit with Purchase!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $17.34 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $244.99
Save $71.63
-29% $173.36

In stock

Only 3 Left!

Add to Cart
Available Deal
SXE-1500.1D/BK main
Offer may end without notice
Continue Shopping Continue to checkout
Eligible items

Shop items below for 30% off up to $100 discount on an NVX XKIT42 Amp Kit

NVX XAPK4 + XIV25 (XKIT42 Sub)

NVX XAPK4 + XIV25 (XKIT42 Sub)

$109.99

$76.99

$33 Savings!

Add to cart
See all 5 special offers
Limited time!

Cerwin-Vega CVP3000.1D

3000W Peak (600W RMS) Class AB CVP Series Monoblock Car Amplifier with Bass Remote

CVP3000.1D big
Go to item page Right Arrow Icon of Right Arrow

Cerwin-Vega CVP3000.1D

3000W Peak (600W RMS) Class AB CVP Series Monoblock Car Amplifier with Bass Remote

• 370 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class A/B 2 ohm Stable Monoblock Amplifier

Save 30% on an NVX XKIT42 Amp Kit with Purchase!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $23.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $275.99
-17% $229.99

Available

Ships in 10-14 days

Add to Cart
Available Deal
CVP3000.1D main
Offer may end without notice
Continue Shopping Continue to checkout
Eligible items

Shop items below for 30% off up to $100 discount on an NVX XKIT42 Amp Kit

NVX XAPK4 + XIV25 (XKIT42 Sub)

NVX XAPK4 + XIV25 (XKIT42 Sub)

$109.99

$76.99

$33 Savings!

Add to cart
See all 5 special offers

MB Quart RA1-750.1

750W RMS Class D Reference Series Monoblock Car Amplifier

RA1-750.1 big
Go to item page Right Arrow Icon of Right Arrow

MB Quart RA1-750.1

750W RMS Class D Reference Series Monoblock Car Amplifier

• 300 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

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

VIP Product Get $22.60 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $239.99
-6% $225.99

Available

Ships in 10-14 days

Add to Cart
Continue to cart
Available Offers (2) for MB Quart RA1-750.1
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

Hertz Venezia V1 24V (Venezia V1)

1260W RMS Class D Venezia Series Monoblock Marine Amplifier

Venezia V1 big
Go to item page Right Arrow Icon of Right Arrow

Hertz Venezia V1 24V (Venezia V1)

1260W RMS Class D Venezia Series Monoblock Marine Amplifier

• 700 watts x 1 channel @ 4 ohm
• 1260 watts x 1 channel @ 2 ohm
• 1260 watts x 1 channel @ 1 ohm
• Total RMS Power: 1260 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 $100.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $1140.00
-12% $999.99

In stock.

Add to Cart
Continue to cart
Available Offers (2) for Hertz Venezia V1 24V (Venezia V1)
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 5 special offers
Limited time!

Sundown Audio SAM-600D

600W RMS Class D SAM Series Monoblock Marine and Powersports Amplifier

SAM-600D big
Go to item page Right Arrow Icon of Right Arrow

Sundown Audio SAM-600D

600W RMS Class D SAM Series Monoblock Marine and Powersports Amplifier

• 230 watts x 1 channel @ 4 ohm
• 415 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.
VIP Star Icon

VIP Product Get $23.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $359.99
Save $130.00
-36% $229.99

Available

Ships in 10-14 days

Add to Cart

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

Limited time!

American Bass Godfather Comp 7D (GFCOMP-7D)

7000W Peak Class D Godfather Series Monoblock Car Amplifier

GFCOMP-7D big
Go to item page Right Arrow Icon of Right Arrow

American Bass Godfather Comp 7D (GFCOMP-7D)

7000W Peak Class D Godfather Series Monoblock Car Amplifier

• Total peak power output: 11000 watts
• Class D Stable Monoblock Amplifier
• Signal sensing remote turn-on
• Crystal-clear, distortion-free sound
• Strappable car 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 $144.79 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $2054.05
-30% $1,447.90

In stock.

Add to Cart
Available Deal
GFCOMP-7D 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
Prev 13 14 15 16 17 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 2009 Rocket III

    Q: Can I upgrade or change the Monoblock Sub Amplifiers in 2009 Triumph Rocket III?

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

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

    1989 Chevrolet K3500 Pickup

    1997 Chrysler Concorde

    2004 Subaru Outback

    2015 BMW 550i xDrive

    2013 Audi S8

    2019 Audi S5

    2018 Chevrolet Suburban

    1982 Oldsmobile Cutlass Cruiser

    2004 GMC Yukon XL

    1990 Oldsmobile Cutlass Cruiser

    Vehicle
    Store     Delete

    2009 Triumph Rocket III

    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 2009 Rocket III
    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.
    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