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18" Car Subwoofers

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.

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DC Audio (Soundlab) (19)

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$250–$500 (5)

$500–$1,000 (15)

$1,000 and up (22)

RMS Power Handling

The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.

800–1,200 watts (5)

1,200–2,000 watts (14)

2,000 watts and up (23)

Peak Power Handling

Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.

Up to 300 watts (10)

1,600–2,400 watts (3)

2,400 watts and up (29)

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.

Nightshade (NS) Series (2)

Apocalypse Series (1)

BOA Series (1)

Stroker Pro Series (1)

Subwoofer Size

Refers to the diameter of the subwoofer, measured in inches.

Shallow Mount Installation

This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No (32)

Voice Coil(s)

Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.

Dual (2 voice coils) (39)

Single (1 voice coil) (1)

Triple (3 voice coils) (1)

Impedance (Per Voice Coil)

The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.

1 (17)

2 (17)

4 (3)

Subwoofer Design

This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round (37)

Minimum Sealed Box Volume

This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

Up to 1 cubic feet (42)

Maximum Sealed Box Volume

This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

Up to 0 cubic feet (42)

Sensitivity

An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".

Up to 60 dB (11)

85–90 dB (19)

90–95 dB (12)

Main Cone Color

This is the color of the speaker's or subwoofer's cone.

Black (32)

Recommended Enclosure Type

This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Bandpass (2)

Ported / Vented (39)

Sealed (10)

Xmax (millimeters)

Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.

Up to 6 mm (12)

12–15 mm (1)

15 mm and up (29)

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Cerwin Vega (1)

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Availability

In Stock (25)

Out of stock (3)

In stock. Ships from manufacturer (14)

Available to order (19)

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Deaf Bonce DB-4518R D2

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

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Deaf Bonce DB-4518R D2

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

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American Bass VFLCOMP-1822

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

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American Bass VFLCOMP-1822

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"

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• 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"

American Bass VFLCOMP-1811

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

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American Bass VFLCOMP-1811

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"

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• 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"

Sundown Audio MD18D1

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

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Sundown Audio MD18D1

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

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• High Roll Foam Surround
• Mount depth: 14.05"
• Sensitivity: 85.836 dB

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• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• High Roll Foam Surround
• Mount depth: 14.05"
• Sensitivity: 85.836 dB

Sundown Audio X V.3 18" D2

2000W RMS 18" X Series Dual 2-ohm Car Subwoofer

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Sundown Audio X V.3 18" D2

2000W RMS 18" X Series Dual 2-ohm Car Subwoofer

• RMS Power: 2000 watts
• Impedance: Triple 2 ohm
• Mount depth: 13.6"
• Sensitivity: 87.6 dB

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• RMS Power: 2000 watts
• Impedance: Triple 2 ohm
• Mount depth: 13.6"
• Sensitivity: 87.6 dB

Sundown Audio X V.3 18" D1

2000W RMS 18" X Series Dual 1-ohm Car Subwoofer

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Sundown Audio X V.3 18" D1

2000W RMS 18" X Series Dual 1-ohm Car Subwoofer

• RMS Power: 2000 watts
• Impedance: Dual 1 ohm
• Mount depth: 13.6"
• Sensitivity: 88.6 dB

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• RMS Power: 2000 watts
• Impedance: Dual 1 ohm
• Mount depth: 13.6"
• Sensitivity: 88.6 dB

Massive Audio BOA181NV2

12000W Peak (6000W RMS) 18" Boa Series Dual 1-ohm Car Subwoofer

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Massive Audio BOA181NV2

12000W Peak (6000W RMS) 18" Boa Series Dual 1-ohm Car Subwoofer

• Peak Power: 12000 watts
• RMS Power: 6000 watts
• Impedance: Dual 1 ohm
• Non-Pressed Paper cone
• Foam surround
• Sensitivity: 92.7 dB

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• Peak Power: 12000 watts
• RMS Power: 6000 watts
• Impedance: Dual 1 ohm
• Non-Pressed Paper cone
• Foam surround
• Sensitivity: 92.7 dB

American Bass GODZILLA-1811

12000W Peak (4700W RMS) 18" Godzilla Series Dual 1-ohm Subwoofer

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American Bass GODZILLA-1811

12000W Peak (4700W RMS) 18" Godzilla Series Dual 1-ohm Subwoofer

• Peak Power: 12000 watts
• RMS Power: 4700 watts
• Impedance: Dual 1 ohm
• Carbon Fiber Cone
• High Roll Foam Surround
• Mount depth: 12.13"
• Sensitivity: 86.2 dB

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• Peak Power: 12000 watts
• RMS Power: 4700 watts
• Impedance: Dual 1 ohm
• Carbon Fiber Cone
• High Roll Foam Surround
• Mount depth: 12.13"
• Sensitivity: 86.2 dB

DC Audio Level 5 18 m5 D1

DC Audio m5 Elite LV5 18" D1 (DC Frame) Subwoofer 7000W Peak (3500W RMS) 18" Level 5 Series m5 Version Dual 1-Ohm High SPL Car Subwoofer with 3.5" Voice Coils - M5LV518D1

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DC Audio Level 5 18 m5 D1

DC Audio m5 Elite LV5 18" D1 (DC Frame) Subwoofer 7000W Peak (3500W RMS) 18" Level 5 Series m5 Version Dual 1-Ohm High SPL Car Subwoofer with 3.5" Voice Coils - M5LV518D1

• 3500 Watts RMS
• 7000 Watts Max
• Kraft Pulp Fiber Reinforced Cone
• Wide Long Throw Foam Surround
• Dome Propylene dust cover with white DC logo
• Dual 3.5” 8 Layer Hi-temp Aluminum voice coil
• Top-mount depth: 12.75"

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Sundown Audio SAV2 18″ D4

1000W RMS 18" SA Series Dual 4-ohm Car Subwoofer

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Sundown Audio SAV2 18″ D4

1000W RMS 18" SA Series Dual 4-ohm Car Subwoofer

• RMS Power: 1000 watts
• Impedance: Dual 4 ohm
• Competition Grade Paper Cone
• Foam Surround
• Mount depth: 10.125"
• Sensitivity: 90.7 dB

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• RMS Power: 1000 watts
• Impedance: Dual 4 ohm
• Competition Grade Paper Cone
• Foam Surround
• Mount depth: 10.125"
• Sensitivity: 90.7 dB

American Bass GODZILLA-1822

12000W Peak (4700 RMS) 18" Godzilla Series Dual 2-ohm Subwoofer

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American Bass GODZILLA-1822

12000W Peak (4700 RMS) 18" Godzilla Series Dual 2-ohm Subwoofer

• Peak Power: 12000 watts
• RMS Power: 4700 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Cone
• High Roll Foam Surround
• Mount depth: 12.13"
• Sensitivity: 87.3 dB

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• Peak Power: 12000 watts
• RMS Power: 4700 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Cone
• High Roll Foam Surround
• Mount depth: 12.13"
• Sensitivity: 87.3 dB

Sundown Audio SW-SAV218D2

1000W RMS 18" SA Series Dual 2-ohm Subwoofer

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Sundown Audio SW-SAV218D2

1000W RMS 18" SA Series Dual 2-ohm Subwoofer

• RMS Power: 1000 watts
• Impedance: Dual 2 ohm
• Competition Grade Paper Cone
• Foam Surround
• Mount depth: 10.125"
• Sensitivity: 90.1 dB

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• RMS Power: 1000 watts
• Impedance: Dual 2 ohm
• Competition Grade Paper Cone
• Foam Surround
• Mount depth: 10.125"
• Sensitivity: 90.1 dB

Cerwin Vega SPCL182

3200W Peak (1600W RMS) 18" Stroker Pro Classic Series Single 2-ohm Car Subwoofer

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Cerwin Vega SPCL182

3200W Peak (1600W RMS) 18" Stroker Pro Classic Series Single 2-ohm Car Subwoofer

• Peak Power: 3600 watts
• RMS Power: 1600 watts
• Impedance: Single 2 ohm
• Mount depth: 9.4"
• Sensitivity: 95 dB

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DC Audio Level 5 18M4D1.4

7000W Peak (3500W RMS) 18" Level 5 Series M4 Version Dual 1.4-Ohm High SPL Car Subwoofer with 3.5" Voice Coils

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DC Audio Level 5 18M4D1.4

7000W Peak (3500W RMS) 18" Level 5 Series M4 Version Dual 1.4-Ohm High SPL Car Subwoofer with 3.5" Voice Coils

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DC Audio Level 5 18 m4 D.7

7000W Peak (3500W RMS) 18" Level 5 Series m4 Version Dual 0.7-Ohm High SPL Car Subwoofer with 3.5" Voice Coils

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DC Audio Level 5 18 m4 D.7

7000W Peak (3500W RMS) 18" Level 5 Series m4 Version Dual 0.7-Ohm High SPL Car Subwoofer with 3.5" Voice Coils

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DC Audio Level 5 18M4D2 (M4LV518D2)

7000W Peak (3500W RMS) 18" Level 5 Series M4 Version Dual 2-Ohm High SPL Car Subwoofer with 3.5" Voice Coils

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DC Audio Level 5 18M4D2 (M4LV518D2)

7000W Peak (3500W RMS) 18" Level 5 Series M4 Version Dual 2-Ohm High SPL Car Subwoofer with 3.5" Voice Coils

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DC Audio Level 5 18 m4 D1

7000W Peak (3500W RMS) 18" Level 5 Series m4 Version Dual 1-Ohm High SPL Car Subwoofer with 3.5" Voice Coils - M4LV518D1

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DC Audio Level 5 18 m4 D1

7000W Peak (3500W RMS) 18" Level 5 Series m4 Version Dual 1-Ohm High SPL Car Subwoofer with 3.5" Voice Coils - M4LV518D1

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DC Audio Level 3 18 M2 D1

1800W Peak 18" Level 3 Series m2 Version Dual 1-Ohm Car Subwoofer - M2LV318D1

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DC Audio Level 3 18 M2 D1

1800W Peak 18" Level 3 Series m2 Version Dual 1-Ohm Car Subwoofer - M2LV318D1

• Peak Power: 1800W
• RMS Power: 900W
• Dual 1 ohm Voice Coil
• Extremely Rigid Non-Pressed Paper Cone Assembly
• Multilayered Polymer Wide Roll Foam Surround

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DC Audio Level 4 18D1 (M2LV418D1)

2800W Peak 18" Level 4 Series m2 Version Dual 1-Ohm Car Subwoofer

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DC Audio Level 4 18D1 (M2LV418D1)

2800W Peak 18" Level 4 Series m2 Version Dual 1-Ohm Car Subwoofer

• Peak Power: 2800W
• RMS Power: 1400W
• Dual 1 ohm Voice Coil
• Extremely Rigid Non-Pressed Paper Cone Assembly
• Multilayered Polymer Wide Roll Foam Surround

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DC Audio XL18 m4 D1

4400W Peak 18" XL Series m4 Version Dual 1-Ohm High SPL Car Subwoofer with 3.0" Voice Coils - M2XL18D1

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DC Audio XL18 m4 D1

4400W Peak 18" XL Series m4 Version Dual 1-Ohm High SPL Car Subwoofer with 3.0" Voice Coils - M2XL18D1

• Peak Power: 4400W
• RMS Power: 2200W
• Dual 1 ohm Voice Coil
• Extremely Rigid Non-Pressed Paper Cone Assembly
• Multilayered Polymer Wide Roll Foam Surround

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18" Car Subwoofers

Shop the Category

Deaf Bonce DB-4518R D2

Deaf Bonce DB-4518R D2

American Bass VFLCOMP-1822

American Bass VFLCOMP-1822

American Bass VFLCOMP-1811

American Bass VFLCOMP-1811

Sundown Audio MD18D1

Sundown Audio MD18D1

Sundown Audio X V.3 18" D2

Sundown Audio X V.3 18" D2

Sundown Audio X V.3 18" D1

Sundown Audio X V.3 18" D1

Massive Audio BOA181NV2

Massive Audio BOA181NV2

American Bass GODZILLA-1811

American Bass GODZILLA-1811

DC Audio Level 5 18 m5 D1

DC Audio Level 5 18 m5 D1

Sundown Audio SAV2 18″ D4

Sundown Audio SAV2 18″ D4

American Bass GODZILLA-1822

American Bass GODZILLA-1822

Sundown Audio SW-SAV218D2

Sundown Audio SW-SAV218D2

Cerwin Vega SPCL182

Cerwin Vega SPCL182

DC Audio Level 5 18M4D1.4

DC Audio Level 5 18M4D1.4

DC Audio Level 5 18 m4 D.7

DC Audio Level 5 18 m4 D.7

DC Audio Level 5 18M4D2 (M4LV518D2)

DC Audio Level 5 18M4D2 (M4LV518D2)

DC Audio Level 5 18 m4 D1

DC Audio Level 5 18 m4 D1

DC Audio Level 3 18 M2 D1

DC Audio Level 3 18 M2 D1

DC Audio Level 4 18D1 (M2LV418D1)

DC Audio Level 4 18D1 (M2LV418D1)

DC Audio XL18 m4 D1

DC Audio XL18 m4 D1

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