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.

Up to 199.99 watts (39)

200–399.99 watts (265)

400–799.99 watts (403)

800–1,199.99 watts (154)

1,200–1,999.99 watts (69)

2,000 watts or more (197)

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 299.99 watts (6)

300–499.99 watts (58)

500–799.99 watts (161)

800–1,199.99 watts (183)

1,200–1,599.99 watts (176)

1,600–2,399.99 watts (175)

2,400 watts or more (251)

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.

Apocalypse Series (19)

W7 Anniversary Edition Series (12)

N-Series (11)

Prime Series (11)

Solo-Baric L7S Series (11)

Solo-Baric L7T Series (11)

TW3 Shallow Mount Series (9)

ZR Series (9)

55 Series (8)

CompVT Series (8)

Diamond Elite Series (8)

IXS Shallow Series (8)

Level 4 Series (8)

Mille Pro Series (8)

Nightshade (NS) Series (8)

SA Classic Series (8)

SML Series (8)

Solo-Baric L7R Series (8)

Hifonics Elite Series (7)

SoloXS L7XS Series (5)

Stage Series (5)

Terminator Series (5)

Punch P3 Shallow Mount Series (4)

TW5 Shallow Mount Series (4)

Solo-Baric L7 Series (3)

Earthquake DBXI Series (2)

Elite Series (2)

ES Series (2)

Excelon Reference Series (2)

Mille Legend Series (2)

Polk Audio MM1 Series (2)

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GT Series (1)

GTX Series (1)

HF Series (1)

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Performance Series (1)

Primus Series (1)

Punch P2 Series (1)

S65 Series (1)

SPL Monster Series (1)

Tarantula T5 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 (903)

Yes (205)

Top-Mount Depth (Mounting Depth)

The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.

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) (858)

Single (1 voice coil) (266)

Triple (3 voice coils) (4)

Quad (4 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.

Sort Impedance (Per Voice Coil) alphanumerically

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 (1,061)

Square (68)

Oval (1)

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 0.99 cubic feet (247)

1–1.99 cubic feet (101)

2 cubic feet or more (16)

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 0.99 cubic feet (88)

1–1.99 cubic feet (137)

2 cubic feet or more (118)

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".

Main Cone Color

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

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 (17)

Ported / Vented (1,026)

Sealed (850)

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.

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Availability

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DS18 GEN-X104D

800W Peak (400W RMS) 10" GEN-X Series Dual 4-ohm Car Subwoofer

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DS18 GEN-X104D

800W Peak (400W RMS) 10" GEN-X Series Dual 4-ohm Car Subwoofer

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Paper Cone
• Foam Surround
• Mount depth: 5.39"
• Sensitivity: 87 dB

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Cerwin-Vega CVP12D4

550W Peak (200W RMS) 12" CVP Series Dual 4-ohm Subwoofer

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Cerwin-Vega CVP12D4

550W Peak (200W RMS) 12" CVP Series Dual 4-ohm Subwoofer

• Peak Power: 550 watts
• RMS Power: 200 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Treated Double Stitched Foam Surround
• Mount depth: 5.94"
• Sensitivity: 86.7 dB

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Hertz DS 30.3

1000W Peak (250W RMS) 12" Dieci Series Dual 4-ohm Car Subwoofer

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Hertz DS 30.3

1000W Peak (250W RMS) 12" Dieci Series Dual 4-ohm Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 250 watts
• Impedance: Dual 4 ohm
• Mica Injected Polypropylene - MIPP cone
• Butyl Rubber surround
• Mount depth: 4.7"
• Sensitivity: 91 dB

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Cerwin-Vega VMAXS124

800W Peak (400W RMS) 12" VMAXX Series Dual 4-ohm Shallow Subwoofer

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Cerwin-Vega VMAXS124

800W Peak (400W RMS) 12" VMAXX Series Dual 4-ohm Shallow Subwoofer

• Peak Power: 800 watts
• RMS Power: 400 watts
• Treated Semi-Pressed Pulped Cone
• Treated Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 3.62"
• Sensitivity: 87.5 dB

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Deaf Bonce HANNIBAL HS-600

600W Peak (300W RMS) 12" Hannibal Series Single 4-ohm Car Subwoofer

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Deaf Bonce HANNIBAL HS-600

600W Peak (300W RMS) 12" Hannibal Series Single 4-ohm Car Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Single 4 ohm
• Paper cone
• Foam surround
• Sensitivity: 85.8 dB

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Sundown Audio Z-10 v.6 D2 10" (Z10V6D2)

6500W Peak (3250W RMS) 10" Z Series Dual 2-ohm Car Subwoofer (SW-ZV610D2)

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Sundown Audio Z-10 v.6 D2 10" (Z10V6D2)

6500W Peak (3250W RMS) 10" Z Series Dual 2-ohm Car Subwoofer (SW-ZV610D2)

• Peak Power: 6500 watts
• RMS Power: 3250 watts
• Impedance: Dual 2 ohm
• Treated Paper Cone
• Mega Roll V2 Surround
• Mount depth: 10.96"
• Sensitivity: 82.08 dB

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MB Quart DS2-304

600W Peak (300W RMS) 12" Discus Series Dual 4-ohm Shallow Subwoofer

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MB Quart DS2-304

600W Peak (300W RMS) 12" Discus Series Dual 4-ohm Shallow Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Woven Carbon Fiber Cone
• UV Treated Foam Surround
• Mount depth: 3.17"
• Sensitivity: 85 dB

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Massive Audio GTS12

600W Peak (370W RMS) 12" GTS Series Dual 4-ohm Shallow Subwoofer

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Massive Audio GTS12

600W Peak (370W RMS) 12" GTS Series Dual 4-ohm Shallow Subwoofer

• Peak Power: 600 watts
• RMS Power: 350 watts
• Impedance: Dual 4 ohm
• Injection Molded Polypropylene Cone
• Pressed Foam Surround
• Mount depth: 3.24"
• Sensitivity: 88 dB

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Hifonics Elite 10" (HEW10D4S)

600W Peak (300W RMS) 10" Hifonics Elite Series Dual 4-ohm Shallow Subwoofer

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Hifonics Elite 10" (HEW10D4S)

600W Peak (300W RMS) 10" Hifonics Elite Series Dual 4-ohm Shallow Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Woven Fiber Cone
• UV Treated Foam Surround
• Mount depth: 2.99"
• Sensitivity: 83 dB

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Diamond Audio DMD122SH

600W Peak (300W RMS) 12" DMD-SH Series Dual 2-ohm Shallow Car Subwoofer

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Diamond Audio DMD122SH

600W Peak (300W RMS) 12" DMD-SH Series Dual 2-ohm Shallow Car Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Paper Cone
• Impedance: Dual 4 ohm
• Sensitivity: 87.5 dB

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DS18 GEN-X124D

900W Peak (450W RMS) 12" Gen-X Series Dual 4-ohm Car Subwoofer

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DS18 GEN-X124D

900W Peak (450W RMS) 12" Gen-X Series Dual 4-ohm Car Subwoofer

• Peak Power: 900 watts
• RMS Power: 450 watts
• Paper Cone
• Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 5.75"
• Sensitivity: 87.5 dB

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

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

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

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

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Sundown Audio PSE-8

250W RMS 8" Dual 4-ohm Powersports Car Subwoofer

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Sundown Audio PSE-8

250W RMS 8" Dual 4-ohm Powersports Car Subwoofer

• RMS Power: 250 watts
• Impedance: Dual 4 ohm
• Mount depth: 4.75"
• Compatible with powersports applications

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List price $215.99

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Hifonics Elite 12" (HEW12D4S)

600W Peak (300W RMS) 12" Hifonics Elite Series Dual 4-ohm Subwoofer

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Hifonics Elite 12" (HEW12D4S)

600W Peak (300W RMS) 12" Hifonics Elite Series Dual 4-ohm Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Woven Fiber Cone
• UV Treated Foam Surround
• Mount depth: 3.17"
• Sensitivity: 85 dB

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DS18 ZR8.4D

900W Peak (450W RMS) 8" ZR Series Dual 4-ohm Car Subwoofer

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DS18 ZR8.4D

900W Peak (450W RMS) 8" ZR Series Dual 4-ohm Car Subwoofer

• Peak Power: 900 watts
• RMS Power: 450 watts
• Non-Pressed Paper Cone
• Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 4.4"
• Sensitivity: 82 dB

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American Bass XMAXXX Monster 15" (XMAXXX-1511)

8000W Peak (4000W RMS) 15" XMAXXX Monster Series Dual 1-ohm Subwoofer

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American Bass XMAXXX Monster 15" (XMAXXX-1511)

8000W Peak (4000W RMS) 15" XMAXXX Monster Series Dual 1-ohm Subwoofer

• Peak Power: 8000 watts
• RMS Power: 4000 watts
• Impedance: Dual 1 ohm
• Carbon Fiber Reinforced Non-Pressed Paper cone
• High Roll Foam surround
• Mount depth: 10.875"
• Sensitivity: 87.5 dB

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-39% $880.69

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Kicker CWRT674 (48CWRT674) (Like New (Open Box))

300W Peak (150W RMS) 6.75” CompRT Series Dual 4-ohm Shallow Subwoofer

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Kicker CWRT674 (48CWRT674) (Like New (Open Box))

300W Peak (150W RMS) 6.75” CompRT Series Dual 4-ohm Shallow Subwoofer

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Santoprene Rubber Surround
• Mount depth: 2-3/4"
• Sensitivity: 82.6 dB

10% Off Open Box!

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2026-06-28 04:00:00

List price $149.99

-26% $110.49

$99.44 with coupon | Price details

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• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Santoprene Rubber Surround
• Mount depth: 2-3/4"
• Sensitivity: 82.6 dB

Sundown Audio Z-10 v.6 D1 10" (Z10V6D1)

6500W Peak (3250W RMS) 10" Z Series Dual 1-ohm Car Subwoofer (SW-ZV610D1)

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Sundown Audio Z-10 v.6 D1 10" (Z10V6D1)

6500W Peak (3250W RMS) 10" Z Series Dual 1-ohm Car Subwoofer (SW-ZV610D1)

• Peak Power: 6500 watts
• RMS Power: 3250 watts
• Impedance: Dual 1 ohm
• Treated Paper Cone
• Mega Roll V2 Surround
• Mount depth: 10.96"
• Sensitivity: 81.89 dB

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$899.99

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Earthquake Sound DBXi-12D

1500W Peak (500W RMS) 12" Dual 4 Ohm DBXi Series Car Subwoofer

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Earthquake Sound DBXi-12D

1500W Peak (500W RMS) 12" Dual 4 Ohm DBXi Series Car Subwoofer

• 1500W Peak
• 500W RMS
• 2" Aluminum Bobbin Voice Coil
• 140 Oz. Double Stacked Magnet
• Sensitivity: 85dB
• Mounting Depth: 6-3/4"

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$373.99

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Kicker CWCS84 (50CWCS84)

400W Peak (200W RMS) 8" CompC Series Single 4-ohm Car Subwoofer

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Kicker CWCS84 (50CWCS84)

400W Peak (200W RMS) 8" CompC Series Single 4-ohm Car Subwoofer

• Peak Power: 400 watts
• RMS Power: 100-200 watts
• Impedance: Single 4 ohm
• Injection Molded Polypropylene Cone
• Ribbed Polyurethane Surround
• Mount depth: 4-3/16"
• Sensitivity: 83.3 dB

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2026-06-28 23:59:00

List price $119.99

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FAQ for Universal Subwoofers in 2009 Altima

Q: Can I upgrade or change the Universal Subwoofers in 2009 Nissan Altima?

A: Yes this page includes all the best Universal Subwoofers that work in your Altima.

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Universal Subwoofers for 2009 Nissan Altima

DS18 GEN-X104D

DS18 GEN-X104D

Cerwin-Vega CVP12D4

Cerwin-Vega CVP12D4

Hertz DS 30.3

Hertz DS 30.3

Cerwin-Vega VMAXS124

Cerwin-Vega VMAXS124

Deaf Bonce HANNIBAL HS-600

Deaf Bonce HANNIBAL HS-600

Sundown Audio Z-10 v.6 D2 10" (Z10V6D2)

Sundown Audio Z-10 v.6 D2 10" (Z10V6D2)

MB Quart DS2-304

MB Quart DS2-304

Massive Audio GTS12

Massive Audio GTS12

Hifonics Elite 10" (HEW10D4S)

Hifonics Elite 10" (HEW10D4S)

Diamond Audio DMD122SH

Diamond Audio DMD122SH

DS18 GEN-X124D

DS18 GEN-X124D

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

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

Sundown Audio PSE-8

Sundown Audio PSE-8

Hifonics Elite 12" (HEW12D4S)

Hifonics Elite 12" (HEW12D4S)

DS18 ZR8.4D

DS18 ZR8.4D

American Bass XMAXXX Monster 15" (XMAXXX-1511)

American Bass XMAXXX Monster 15" (XMAXXX-1511)

Kicker CWRT674 (48CWRT674) (Like New (Open Box))

Kicker CWRT674 (48CWRT674) (Like New (Open Box))

Sundown Audio Z-10 v.6 D1 10" (Z10V6D1)

Sundown Audio Z-10 v.6 D1 10" (Z10V6D1)

Earthquake Sound DBXi-12D

Earthquake Sound DBXi-12D

Kicker CWCS84 (50CWCS84)

Kicker CWCS84 (50CWCS84)

FAQ for Universal Subwoofers in 2009 Altima

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