Garage
Shop

18" Car Subwoofers

Find the best 18" car subs money can buy with our huge selection from all the top brands. 18-inch is the most popular size because of the amount of bass it generates and the overall bass produced. The top brands for 18" subs are NVX, JL Audio, Kicker, Rockford Fosgate, and Alpine.

Loading...
Filters

Shop the Category

filter-icon Filters & Sort

Kicker L7X181 (49L7X181)

2000W RMS 18" SoloX Series Dual 1-ohm Subwoofer

49L7X181 big
Go to item page Right Arrow Icon of Right Arrow

2000W RMS 18" SoloX Series Dual 1-ohm Subwoofer

• RMS Power: 1000 - 2000 watts
• Impedance: Dual 1 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 13-3/16"

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

List price $1049.99
-10% $949.99

In stock

Only 2 Left!

• RMS Power: 1000 - 2000 watts
• Impedance: Dual 1 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 13-3/16"

Kicker L7X182 (49L7X182)

2000W RMS 18" SoloX Series Dual 2-ohm Subwoofer

49L7X182 big
Go to item page Right Arrow Icon of Right Arrow

2000W RMS 18" SoloX Series Dual 2-ohm Subwoofer

• RMS Power: 1000 - 2000 watts
• Impedance: Dual 2 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 13-3/16"

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

1
List price $1049.99
-10% $949.99

In stock

Only 3 Left!

• RMS Power: 1000 - 2000 watts
• Impedance: Dual 2 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 13-3/16"

Sundown Audio X-18 v.3 D1 18" (X12V3D1)

5000W Peak (2500W RMS) 18" X Series Dual 1-ohm Car Subwoofer (SW-XV318D1)

SW-XV318D1 big
Go to item page Right Arrow Icon of Right Arrow

5000W Peak (2500W RMS) 18" X Series Dual 1-ohm Car Subwoofer (SW-XV318D1)

• Peak Power: 5000 watts
• RMS Power: 2500 watts
• Impedance: Dual 1 ohm
• Pressed Paper Cone
• Mega Roll V2 Surround
• Mount depth: 13.6"
• Sensitivity: 88.6 dB

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

List price $1019.99
-7% $949.99

In stock

Only 2 Left!

American Bass VFL Comp Signature 18" (VFLCOMP-1811)

10000W Peak (5000W RMS) 18" VFL Competition Series Dual 1-ohm Subwoofer

VFLCOMP-1811 big
Go to item page Right Arrow Icon of Right Arrow

10000W Peak (5000W RMS) 18" VFL Competition Series Dual 1-ohm Subwoofer

• Peak Power: 10000 watts
• RMS Power: 5000 watts
• Impedance: Dual 1 ohm
• Kevlar Fiber-Enforced Non-Pressed Paper cone
• High Roll Foam surround
• Mount depth: 11"

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

VIP Product Get $100.24 in rewards to spend later

List price $1618.44
-38% $1,002.36

In stock.

American Bass VFL Comp Signature 18" (VFLCOMP-1822)

10000W Peak (5000W RMS) 18" VFL Competition Series Dual 2-ohm Subwoofer

VFLCOMP-1822 big
Go to item page Right Arrow Icon of Right Arrow

10000W Peak (5000W RMS) 18" VFL Competition Series Dual 2-ohm Subwoofer

• Peak Power: 10000 watts
• RMS Power: 5000 watts
• Impedance: Dual 2 ohm
• Kevlar Fiber-Enforced Non-Pressed Paper cone
• High Roll Foam surround
• Mount depth: 11"

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

VIP Product Get $100.24 in rewards to spend later

List price $1618.44
-38% $1,002.36

In stock.

Limited time!

Sundown Audio NS v.6 D1 18" (NSV618D1) (Open Box, Great)

7000W Peak (3500W RMS) 18" Nightshade Series Dual 1-ohm Car Subwoofer (SW-NSV618D1)

SW-NSV618D1 big
Go to item page Right Arrow Icon of Right Arrow

7000W Peak (3500W RMS) 18" Nightshade Series Dual 1-ohm Car Subwoofer (SW-NSV618D1)

• Peak Power: 7000 watts
• RMS Power: 3500 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• Mega Roll V2 Surround
• Sensitivity: 87.47 dB

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
List price $1259.99
-39% $769.99
$692.99 with coupon | Price details

In stock

Only 1 Left!

• Peak Power: 7000 watts
• RMS Power: 3500 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• Mega Roll V2 Surround
• Sensitivity: 87.47 dB

Sundown Audio Z-18 v.7 D2 18" (Z18V7D2)

7000W Peak (3500W RMS) 18" Z Series Dual 2-ohm Car Subwoofer (SW-ZV718D2)

ZV718D2 big
Go to item page Right Arrow Icon of Right Arrow

7000W Peak (3500W RMS) 18" Z Series Dual 2-ohm Car Subwoofer (SW-ZV718D2)

• Peak Power: 7000 watts
• RMS Power: 3500 watts
• Impedance: Dual 2 ohm
• Treated Paper Cone
• Treated Foam Surround
• Sensitivity: 91.07 dB

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

VIP Product Get $140.00 in rewards to spend later

List price $1679.99
-17% $1,399.99

Available

Ships in 10-14 days

Sundown Audio X-18 v.3 D2 18" (X12V3D2)

5000W Peak (2500W RMS) 18" X Series Dual 2-ohm Car Subwoofer (SW-XV318D2)

SW-XV318D2 big
Go to item page Right Arrow Icon of Right Arrow

5000W Peak (2500W RMS) 18" X Series Dual 2-ohm Car Subwoofer (SW-XV318D2)

• Peak Power: 5000 watts
• RMS Power: 2500 watts
• Impedance: Dual 2 ohm
• Pressed Paper Cone
• Mega Roll V2 Surround
• Mount depth: 13.6"
• Sensitivity: 87.6 dB

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

VIP Product Get $85.00 in rewards to spend later

List price $1127.99
-25% $849.99

In stock

Only 2 Left!

Sundown Audio M-18 D1 18" (M18D1)

4000W Peak (2000W RMS) 18" M Series Dual 1-ohm Car Subwoofer (SW-M18D1)

SW-M18D1 big
Go to item page Right Arrow Icon of Right Arrow

4000W Peak (2000W RMS) 18" M Series Dual 1-ohm Car Subwoofer (SW-M18D1)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• High Roll Foam Surround
• Mount depth: 14.05"
• Sensitivity: 85.83 dB

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

VIP Product Get $70.00 in rewards to spend later

3
List price $839.99
-17% $699.99

In stock

Deaf Bonce Apocalypse DB-4518R D2

9000W Peak (4500W RMS) 18” Apocalypse Series Dual 2-ohm Car Subwoofer

DВ-4518R D2 big
Go to item page Right Arrow Icon of Right Arrow

9000W Peak (4500W RMS) 18” Apocalypse Series Dual 2-ohm Car Subwoofer

• Peak Power: 9000 watts
• RMS Power: 4500 watts
• Carbon Fiber Cone
• Foam Surround
• Impedance: Dual 2 ohm
• Mount depth: 12.87"
• Sensitivity: 89.00 dB

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

List price $1449.90
-10% $1,299.99

In stock

Only 1 Left!

Sundown Audio M-18 D2 18" (M18D2)

4000W Peak (2000W RMS) 18" M Series Dual 2-ohm Car Subwoofer (SW-M18D2)

M18D2 big
Go to item page Right Arrow Icon of Right Arrow

4000W Peak (2000W RMS) 18" M Series Dual 2-ohm Car Subwoofer (SW-M18D2)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Treated Paper Cone
• Mega Roll V2 Surround
• Mount depth: 14.05"
• Sensitivity: 86.10 dB

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

VIP Product Get $70.00 in rewards to spend later

1
List price $839.99
-17% $699.99

In stock

Only 2 Left!

Sundown Audio SA-18 v.2 D4 18" (SA18V2D4)

2500W Peak (1250W RMS) 18" SA Series Dual 4-ohm Car Subwoofer (SW-SAV218D4)

SW-SAV218D4 big
Go to item page Right Arrow Icon of Right Arrow

2500W Peak (1250W RMS) 18" SA Series Dual 4-ohm Car Subwoofer (SW-SAV218D4)

• Peak Power: 2500 watts
• RMS Power: 1250 watts
• Impedance: Dual 4 ohm
• Competition Grade Paper cone
• Foam surround
• Mount depth: 10.125"
• Sensitivity: 90.7 dB

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 $599.99
-17% $499.99

In stock

Sundown Audio NS v.6 D1 18" (NSV618D1)

7000W Peak (3500W RMS) 18" Nightshade Series Dual 1-ohm Car Subwoofer (SW-NSV618D1)

SW-NSV618D1 big
Go to item page Right Arrow Icon of Right Arrow

7000W Peak (3500W RMS) 18" Nightshade Series Dual 1-ohm Car Subwoofer (SW-NSV618D1)

• Peak Power: 7000 watts
• RMS Power: 3500 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• Mega Roll V2 Surround
• Sensitivity: 87.47 dB

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 $1259.99
-13% $1,099.99

In stock

Used from: $769.99

DC Audio Level 6 18M6D2

8000W Peak (4500W RMS) 18" Level 6 Series M6 Version Dual 2-ohm Subwoofer

M6 LV6 18D2 big
Go to item page Right Arrow Icon of Right Arrow

8000W Peak (4500W RMS) 18" Level 6 Series M6 Version Dual 2-ohm Subwoofer

• Peak Power: 8000 watts
• RMS Power: 4500 watts
• Impedance: Dual 2 ohm
• Kraft Fiber-Reinforced Pulp Cone
• Wide Long Throw Foam Surround
• Mount depth: 14.0"
• Sensitivity: 86.92 dB

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

VIP Product Get $109.50 in rewards to spend later

List price $1559.99
-30% $1,094.99

In stock.

• Peak Power: 8000 watts
• RMS Power: 4500 watts
• Impedance: Dual 2 ohm
• Kraft Fiber-Reinforced Pulp Cone
• Wide Long Throw Foam Surround
• Mount depth: 14.0"
• Sensitivity: 86.92 dB

Sundown Audio NS v.6 D2 18" (NSV618D2)

7000W Peak (3500W RM)S 18" Nightshade Series Dual 2-ohm Car Subwoofer (SW-NSV618D2)

SW-NSV618D2 big
Go to item page Right Arrow Icon of Right Arrow

7000W Peak (3500W RM)S 18" Nightshade Series Dual 2-ohm Car Subwoofer (SW-NSV618D2)

• Peak Power: 7000 watts
• RMS Power: 3500 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• Mega Roll V2 Surround
• Sensitivity: 87.57 dB

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 $1259.99
-13% $1,099.99

In stock

Only 1 Left!

Sundown Audio Z-18 v.6 D1 18" (Z18V6D1)

6500W Peak (3250W RMS) 18" Z Series Dual 1-ohm Car Subwoofer (SW-ZV618D1)

SW-ZV618D1 big
Go to item page Right Arrow Icon of Right Arrow

6500W Peak (3250W RMS) 18" Z Series Dual 1-ohm Car Subwoofer (SW-ZV618D1)

• Peak Power: 6500 watts
• RMS Power: 3250 watts
• Impedance: Dual 1 ohm
• Treated Paper Cone
• Mega Roll V2 Surround
• Mount depth: 14.92"
• Sensitivity: 87.51 dB

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

VIP Product Get $115.00 in rewards to spend later

List price $1199.99
$1,149.99

Available

Ships in 10-14 days

Sundown Audio U-18 v.2 D2 18" (U18V2D2)

4000W Peak (2000W RMS) 18" U Series Dual 2-ohm Car Subwoofer (SW-UV218D2)

SW-UV218D2 big
Go to item page Right Arrow Icon of Right Arrow

4000W Peak (2000W RMS) 18" U Series Dual 2-ohm Car Subwoofer (SW-UV218D2)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Pressed Paper Cone
• Double-Stitched Surround
• Mount depth: 10"
• Sensitivity: 89.41 dB

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% $719.99

Available

Ships in 10-14 days

Sundown Audio Z-18 v.6 D2 18" (Z18V6D2)

6500W Peak (3250W RMS) 18" Z Series Dual 2-ohm Car Subwoofer (SW-ZV618D2)

SW-ZV618D2 big
Go to item page Right Arrow Icon of Right Arrow

6500W Peak (3250W RMS) 18" Z Series Dual 2-ohm Car Subwoofer (SW-ZV618D2)

• Peak Power: 6500 watts
• RMS Power: 3250 watts
• Impedance: Dual 2 ohm
• Treated Paper Cone
• Mega Roll V2 Surround
• Mount depth: 14.92"
• Sensitivity: 87.58 dB

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

VIP Product Get $115.00 in rewards to spend later

List price $1379.99
-17% $1,149.99

Available

Ships in 10-14 days

Sundown Audio M-18 D2 18" (M18D2)

4000W Peak (2000W RMS) 18" M Series Dual 2-ohm Car Subwoofer (SW-MD18D2)

SW-MD18D2 big
Go to item page Right Arrow Icon of Right Arrow

4000W Peak (2000W RMS) 18" M Series Dual 2-ohm Car Subwoofer (SW-MD18D2)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• High Roll Foam Surround
• Mount depth: 14.05"
• Sensitivity: 86.102 dB

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

VIP Product Get $70.00 in rewards to spend later

List price $719.99
$699.99

Available

Ships in 10-14 days

DC Audio Level 5 18M4D1 (M4LV518D1)

7000W Peak (3500W RMS) 18" Level 5 Series M4 Version Dual 1-ohm Car Subwoofer

M4LV518D1 big
Go to item page Right Arrow Icon of Right Arrow

7000W Peak (3500W RMS) 18" Level 5 Series M4 Version Dual 1-ohm Car Subwoofer

• Peak Power: 7000 watts
• RMS Power: 3500 watts
• Impedance: Dual 1 ohm
• Kraft Pulp cone
• Wide Foam surround
• Mount depth: 12.75"

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

VIP Product Get $114.50 in rewards to spend later

List price $1539.99
-26% $1,144.99

Available

Ships in 10-14 days

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

    1990 Mazda MPV

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

    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.