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2004 Subaru Forester

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Subwoofers and enclosures, specifically designed for your 2004 Forester, as well as universal fit solutions

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

Subwoofers and Boxes for 2004 Subaru Forester

A subwoofer that works with, or is designed for, your 2004 Subaru Forester will add bass, clarity and depth to your music and system. A quality subwoofer will give realism and an overall rich, complete sound that you otherwise would not get with a factory car sound system.

Subwoofer bass packages

Universal Subwoofer Bass Packages

These packages include an amp, sub(s), an enclosure and amplifier wiring. They should fit your Subaru Forester, but verify your trunk/rear vehicle area.

Universal Subwoofers

Universal Subwoofers

These sub(s) are perfect for adding to a empty box or custom built enclosure. They should work with your Subaru Forester, but verify your trunk/rear vehicle area.

Universal-fit loaded and powered sub boxes

Universal-fit Loaded Subwoofer Boxes

These boxes include sub(s) and some include an amp. They should fit your Subaru Forester, but verify your trunk/rear vehicle area.

Universal-fit empty unloaded sub boxes

Empty Universal-fit Sub Box Enclosures

These boxes are ready for you to add a sub and amp. They should fit your ride, but verify your trunk/rear vehicle area.

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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.
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.
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.
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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.
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.
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.
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.

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.
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.
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.

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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JL Audio 12W6v3-D4

600W RMS 12" W6v3 Series Dual 4-ohm Car Subwoofer

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JL Audio 12W6v3-D4

600W RMS 12" W6v3 Series Dual 4-ohm Car Subwoofer

• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 7.52"
• Sensitivity: 85.4 dB

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JL Audio H.O. Wedge W6v3 HO112-W6v3

600W Loaded Single 12" Vented Enclosure

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JL Audio H.O. Wedge W6v3 HO112-W6v3

600W Loaded Single 12" Vented Enclosure

• Ported enclosure with 1 12" W6 v3 Series Subwoofer
• 600 watts RMS
• Final Impedance: 2-ohm
• Dimensions: 14.5" L x 16" H x 24" W

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JL Audio H.O. Wedge HO110-W6v3

600W Single 10" 10W6v3 Vented Enclosed Subwoofer System

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JL Audio H.O. Wedge HO110-W6v3

600W Single 10" 10W6v3 Vented Enclosed Subwoofer System

• 600W Single 10" Vented Subwoofer Enclosure
• 10" W6 Series Subwoofer
• 5/8" Medium Density Fiberboard with High-grade Automotive Carpet
• 2 Screw Terminals
• Enclosure Dimensions: 21-3/4" D x 12-1/4" W x 14" H

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JL Audio 10W6v3-D4

600W RMS 10" W6v3 Series Dual 4-ohm Car Subwoofer

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JL Audio 10W6v3-D4

600W RMS 10" W6v3 Series Dual 4-ohm Car Subwoofer

• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Rubber Surround
• Mount depth: 6.89"
• Sensitivity: 82.7 dB

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Kicker Comp DC12 (43DC122)

600W Peak (300W RMS) Loaded Dual 12" Vented Enclosure

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Kicker Comp DC12 (43DC122)

600W Peak (300W RMS) Loaded Dual 12" Vented Enclosure

• Ported enclosure with 2 12" Comp Series Subwoofer
• 300 watts RMS (600 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 17-1/4" L x 16" H x 32-7/16" W x 13-7/8" W2

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Kicker CDF104 (48CDF104)

300W Peak (150W RMS) Loaded Single 10" Downward Firing Sealed Subwoofer Enclosure

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Kicker CDF104 (48CDF104)

300W Peak (150W RMS) Loaded Single 10" Downward Firing Sealed Subwoofer Enclosure

• Sealed enclosure with 1 10" Comp Series Subwoofer
• 75-150 watts RMS Power Rating
• Final Impedance: 4-ohm
• Dimensions: 20 11/16" L x 7 1/16" H x 12 1/4" W

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Kicker Comp 10 (43C104) (Open Box, Great)

300W Peak (150W RMS) 10" Comp Series Single 4-ohm Car Subwoofer

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Kicker Comp 10 (43C104) (Open Box, Great)

300W Peak (150W RMS) 10" Comp Series Single 4-ohm Car Subwoofer

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Single 4 ohm
• SoloKon Polypropylene Cone
• Ribbed Poly-Foam Surround
• Mount depth: 5 1/16"
• Sensitivity: 86.2 dB

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• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Single 4 ohm
• SoloKon Polypropylene Cone
• Ribbed Poly-Foam Surround
• Mount depth: 5 1/16"
• Sensitivity: 86.2 dB

Kicker Comp 10 (43C104)

300W Peak (150W RMS) 10" Comp Series Single 4-ohm Car Subwoofer

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Kicker Comp 10 (43C104)

300W Peak (150W RMS) 10" Comp Series Single 4-ohm Car Subwoofer

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Single 4 ohm
• SoloKon Polypropylene Cone
• Ribbed Poly-Foam Surround
• Mount depth: 5 1/16"
• Sensitivity: 86.2 dB

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Kicker Comp 12 (43C124)

300W Peak (150W RMS) 12" Comp Series Single 4-ohm Subwoofer

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Kicker Comp 12 (43C124)

300W Peak (150W RMS) 12" Comp Series Single 4-ohm Subwoofer

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Santoprene Rubber Surround
• Mount depth: 5 7/8"
• Sensitivity: 88.3 dB

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Kicker Comp TC10 (43TC104)

300W Peak (150W RMS) Loaded Single 10" Vented Truck Enclosure

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Kicker Comp TC10 (43TC104)

300W Peak (150W RMS) Loaded Single 10" Vented Truck Enclosure

• Sealed truck enclosure with 1 10" Comp Series Subwoofer
• 150 watts RMS (300 watts Peak)
• Final Impedance: 4-ohm
• Dimensions: 4-3/4" L x 15" H x 21-3/4" W x 7-11/16" W2

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Kicker C84 (43C84)

200W Peak (100W RMS) 8" Comp Series Single 4-ohm Subwoofer

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Kicker C84 (43C84)

200W Peak (100W RMS) 8" Comp Series Single 4-ohm Subwoofer

• Peak Power: 200 watts
• RMS Power: 100 watts
• Impedance: Single 4 ohm
• Injection Molded Polypropylene Cone
• UV-Resistant Rubber Surround
• Mount depth: 4"
• Sensitivity: 83.6 dB

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• Peak Power: 200 watts
• RMS Power: 100 watts
• Impedance: Single 4 ohm
• Injection Molded Polypropylene Cone
• UV-Resistant Rubber Surround
• Mount depth: 4"
• Sensitivity: 83.6 dB

Kicker Comp 15 (43C154)

500W Peak (250W RMS) 15" Comp Series Single 4-ohm Subwoofer

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Kicker Comp 15 (43C154)

500W Peak (250W RMS) 15" Comp Series Single 4-ohm Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Injection Molded Polypropylene cone
• Foam surround
• Mount depth: 7-7/16"
• Sensitivity: 90.3 dB

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Kicker CDF124 (48CDF124)

300W Peak (150W RMS) Loaded Single 12" Downward Firing Sealed Subwoofer Enclosure

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Kicker CDF124 (48CDF124)

300W Peak (150W RMS) Loaded Single 12" Downward Firing Sealed Subwoofer Enclosure

• Sealed enclosure with 1 12" Comp Series Subwoofer
• 75-150 watts RMS Power Rating
• Final Impedance: 4-ohm
• Dimensions: 22 7/8" L x 7 7/8" H x 14 3/16" W

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Kicker Comp VC12 (43VC124)

300W Peak (150W RMS) Loaded Single 12" Vented Enclosure

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Kicker Comp VC12 (43VC124)

300W Peak (150W RMS) Loaded Single 12" Vented Enclosure

• Ported enclosure with 1 12" Comp Series Subwoofer
• 150 watts RMS (300 watts Peak)
• Final Impedance: 4-ohm
• Dimensions: 11-1/4" L x 16-1/8" H x 17-11/16" W x 14-5/8" W2

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List price $239.99
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JL Audio 12W6v3-D4 (Open Box, Great)

600W RMS 12" W6v3 Series Dual 4-ohm Car Subwoofer

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JL Audio 12W6v3-D4 (Open Box, Great)

600W RMS 12" W6v3 Series Dual 4-ohm Car Subwoofer


• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 7.52"
• Sensitivity: 85.4 dB

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• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 7.52"
• Sensitivity: 85.4 dB

JL Audio 12W6v3-D4 - Pair

600W RMS 12" W6v3 Series Dual 4-ohm Car Subwoofer

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JL Audio 12W6v3-D4 - Pair

600W RMS 12" W6v3 Series Dual 4-ohm Car Subwoofer

• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 7.52"
• Sensitivity: 85.4 dB

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• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 7.52"
• Sensitivity: 85.4 dB

NVX NE81P w/ Kicker 43C84

Single 8" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.75 Cu. Ft. with Polyfil and NVX Logo w/ 200W Peak (100W RMS) 8" Comp Series Single 4-ohm Subwoofer

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NVX NE81P w/ Kicker 43C84

Single 8" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.75 Cu. Ft. with Polyfil and NVX Logo w/ 200W Peak (100W RMS) 8" Comp Series Single 4-ohm Subwoofer

• 8" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .75 cubic feet
• Premium Black Carpet with Black NVX Logo

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• 8" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .75 cubic feet
• Premium Black Carpet with Black NVX Logo

(2) KICKER 43C124 Comp 12" 600 Watt SVC 4-Ohm Car Audio Subwoofers Subs

(2) 300W Peak (150W RMS) 12" Comp Series Single 4 ohm Subwoofers Package

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(2) KICKER 43C124 Comp 12" 600 Watt SVC 4-Ohm Car Audio Subwoofers Subs

(2) 300W Peak (150W RMS) 12" Comp Series Single 4 ohm Subwoofers Package

• Peak: 300 watts
• RMS: 150 watts
• Thick Polypropylene Woofer Cone
• High density UV treated surround
• Frequency Response: 27 - 500 Hz

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• Peak: 300 watts
• RMS: 150 watts
• Thick Polypropylene Woofer Cone
• High density UV treated surround
• Frequency Response: 27 - 500 Hz

NVX NE122S w/ JL Audio 12W6v3-D4

Dual 12" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 2.0 Cu. Ft. with Polyfil and NVX Logo w/ 600W RMS 12" W6v3 Series Dual 4-ohm Car Subwoofer

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NVX NE122S w/ JL Audio 12W6v3-D4

Dual 12" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 2.0 Cu. Ft. with Polyfil and NVX Logo w/ 600W RMS 12" W6v3 Series Dual 4-ohm Car Subwoofer

• 12" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 2.00 cubic feet
• Premium Black Carpet with Black NVX Logo

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• 12" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 2.00 cubic feet
• Premium Black Carpet with Black NVX Logo

JL Audio 10W6v3-D4 - Pair

600W RMS 10" W6v3 Series Dual 4-ohm Car Subwoofer

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JL Audio 10W6v3-D4 - Pair

600W RMS 10" W6v3 Series Dual 4-ohm Car Subwoofer

• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Rubber Surround
• Mount depth: 6.89"
• Sensitivity: 82.7 dB

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Universal Icon Universal – fits most vehicles.

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$1,699.98

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• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Rubber Surround
• Mount depth: 6.89"
• Sensitivity: 82.7 dB

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    FAQ for Subwoofer and Sub Box Upgrades in 2004 Forester

    Q: Can I upgrade or change the Subwoofer and Sub Box Upgrades in 2004 Subaru Forester?

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