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2004 GMC Envoy

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Subwoofers and enclosures, specifically designed for your 2004 Envoy, 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 GMC Envoy

A subwoofer that works with, or is designed for, your 2004 GMC Envoy 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 GMC Envoy, 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 GMC Envoy, 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 GMC Envoy, 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.
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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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NVX SMW12D4

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

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NVX SMW12D4

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

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Reinforced Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 3.82"
• Sensitivity: 88 dB

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Alpine S2-W12D4

1800W Peak (600W RMS) 12" S-Series Dual 4-ohm Car Subwoofer

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Alpine S2-W12D4

1800W Peak (600W RMS) 12" S-Series Dual 4-ohm Car Subwoofer

• Peak Power: 1800 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Polypropylene Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 4.89"
• Sensitivity: 86.2 dB

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NVX SMW10D4

700W Peak (350W RMS) 10" S-Series Shallow-Mount Dual 4-ohm Car Subwoofer

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NVX SMW10D4

700W Peak (350W RMS) 10" S-Series Shallow-Mount Dual 4-ohm Car Subwoofer

• Peak Power: 700 watts
• RMS Power: 350 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Reinforced Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 3.23"
• Sensitivity: 88 dB

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Alpine S2-W10D4

1800W Peak (600W RMS) 10" S-Series Dual 4-ohm Car Subwoofer

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Alpine S2-W10D4

1800W Peak (600W RMS) 10" S-Series Dual 4-ohm Car Subwoofer

• Peak Power: 1800 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Polypropylene Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 4.54"
• Sensitivity: 84.9 dB

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Alpine S2-W8D2

900W Peak (300W RMS) 8" S-Series Dual 2-ohm Car Subwoofer

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Alpine S2-W8D2

900W Peak (300W RMS) 8" S-Series Dual 2-ohm Car Subwoofer

• Peak Power: 900 watts
• RMS Power: 300 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Polypropylene Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 3.71"
• Sensitivity: 82.6 dB

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Alpine S2-SB12

1800W Peak (600W RMS) Loaded Single 12" Sealed PrismaLink Subwoofer Enclosure with RGB Light

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Alpine S2-SB12

1800W Peak (600W RMS) Loaded Single 12" Sealed PrismaLink Subwoofer Enclosure with RGB Light

• Sealed enclosure with 1 12" S Series Subwoofer
• 600 watts RMS (1800 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 16.5" L x 15" H x 13.25" W

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Alpine SS-SB10

300W RMS Loaded Single 10" Sealed Shallow Enclosure

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Alpine SS-SB10

300W RMS Loaded Single 10" Sealed Shallow Enclosure

• Sealed shallow enclosure with 1 10" S Series Subwoofer
• 300 watts RMS Power Rating
• Final Impedance: 2-ohm
• Dimensions: 18.5" L x 4.5" H x 12.5" W

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List price $650.00
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Alpine S2-W12D2

1800W Peak (600W RMS) 12" S-Series Dual 2-ohm Car Subwoofer

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Alpine S2-W12D2

1800W Peak (600W RMS) 12" S-Series Dual 2-ohm Car Subwoofer

• Peak Power: 1800 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Polypropylene Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 4.89"
• Sensitivity: 85.7 dB

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Alpine S2-SB10V

1800 Peak (600W RMS) Loaded Single 10" Vented Subwoofer Enclosure

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Alpine S2-SB10V

1800 Peak (600W RMS) Loaded Single 10" Vented Subwoofer Enclosure

• Ported enclosure with 1 10" S Series Subwoofer
• 600 watts RMS (1800 watts Peak)
• Final Impedance: 2-ohm
• Linkable subwoofer enclosure
• Dimensions: 16" L x 12.7" H x 14.5" W

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Alpine S2-SB10

1800W Peak (600W RMS) Loaded Single 10" Sealed PrismaLink Subwoofer Enclosure with RGB Light

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Alpine S2-SB10

1800W Peak (600W RMS) Loaded Single 10" Sealed PrismaLink Subwoofer Enclosure with RGB Light

• Sealed enclosure with 1 10" S Series Subwoofer
• 600 watts RMS (1800 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 14.5" L x 13" H x 11.25" W

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Alpine S2-SB8

900W Peak (300W RMS) Loaded Single 8" Sealed PrismaLink Subwoofer Enclosure with RGB Light

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Alpine S2-SB8

900W Peak (300W RMS) Loaded Single 8" Sealed PrismaLink Subwoofer Enclosure with RGB Light

• Sealed enclosure with 1 8" S Series Subwoofer
• 300 watts RMS (900 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 12.5" L x 11" H x 9.25" W

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Alpine S-DB8V-TRK

600W RMS Loaded Dual 8" Vented Truck Subwoofer Enclosure

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Alpine S-DB8V-TRK

600W RMS Loaded Dual 8" Vented Truck Subwoofer Enclosure

• Ported truck enclosure with 2 8" S Series Subwoofer
• 600 watts RMS ( Peak)
• Final Impedance: 2-ohm x 2 sets
• Dimensions: 51" L x 8.63" H x 14" W

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Alpine S2-W10D2

1800W Peak (600W RMS) 10" S-Series Dual 2-ohm Car Subwoofer

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Alpine S2-W10D2

1800W Peak (600W RMS) 10" S-Series Dual 2-ohm Car Subwoofer

• Peak Power: 1800 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Polypropylene Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 4.54"
• Sensitivity: 84.7 dB

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List price $290.00
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Alpine S2-SB12V

1800W Peak (600W RMS) Loaded Single 12" Vented Subwoofer Enclosure

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Alpine S2-SB12V

1800W Peak (600W RMS) Loaded Single 12" Vented Subwoofer Enclosure

• Ported enclosure with 1 12" S Series Subwoofer
• 600 watts RMS (1800 watts Peak)
• Final Impedance: 2-ohm
• Linkable subwoofer enclosure
• Dimensions: 17" L x 14.62" H x 15" W

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List price $600.00
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Alpine SS-SB12

300W RMS Loaded Single 12" Sealed Shallow Enclosure

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Alpine SS-SB12

300W RMS Loaded Single 12" Sealed Shallow Enclosure

• Sealed shallow enclosure with 1 12" S Series Subwoofer
• 300 watts RMS Power Rating
• Final Impedance: 2-ohm
• Dimensions: 22.25" L x 5.25" H x 13.125" W

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List price $720.00
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NVX SMW12D4 (Open Box, Great)

800W Peak (400W RMS) S-Series Shallow-Mount 12" Dual 4-Ohm Subwoofer

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NVX SMW12D4 (Open Box, Great)

800W Peak (400W RMS) S-Series Shallow-Mount 12" Dual 4-Ohm Subwoofer

• 800 watts Watts Peak
• 400 watts Watts RMS
• Carbon Fiber Reinforced Polypropylene Cone
• Butyl Rubber Surround
• Includes Depth Extension Clearance Plate
• Mounting Depth: 3-15/16"

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• 800 watts Watts Peak
• 400 watts Watts RMS
• Carbon Fiber Reinforced Polypropylene Cone
• Butyl Rubber Surround
• Includes Depth Extension Clearance Plate
• Mounting Depth: 3-15/16"

Limited time!

Alpine S2-W8D4

900W Peak (300W RMS) 8" S-Series Dual 4-ohm Car Subwoofer

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Alpine S2-W8D4

900W Peak (300W RMS) 8" S-Series Dual 4-ohm Car Subwoofer

• Peak Power: 900 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Polypropylene Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 3.71"
• Sensitivity: 82.7 dB

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NVX NE102S w/ Alpine S2-W10D2

Dual 10" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.2 Cu. Ft. with Polyfil and NVX Logo w/ 10" S-Series Dual 2-ohm Car Subwoofer

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NVX NE102S w/ Alpine S2-W10D2

Dual 10" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.2 Cu. Ft. with Polyfil and NVX Logo w/ 10" S-Series Dual 2-ohm Car Subwoofer

•10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.20 cubic feet
• Premium Black Carpet with Black NVX Logo

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•10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.20 cubic feet
• Premium Black Carpet with Black NVX Logo

(BOGO 10% OFF) (2) NVX SMW12D4

(2) 800W Peak (400W RMS) S-Series Shallow-Mount 12" Dual 4-Ohm Subwoofers

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(BOGO 10% OFF) (2) NVX SMW12D4

(2) 800W Peak (400W RMS) S-Series Shallow-Mount 12" Dual 4-Ohm Subwoofers

• 800 watts Watts Peak
• 400 watts Watts RMS
• Carbon Fiber Reinforced Polypropylene Cone
• Butyl Rubber Surround
• Includes Depth Extension Clearance Plate
• Mounting Depth: 3-15/16"

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List price $263.98
-21% $208.98

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• 800 watts Watts Peak
• 400 watts Watts RMS
• Carbon Fiber Reinforced Polypropylene Cone
• Butyl Rubber Surround
• Includes Depth Extension Clearance Plate
• Mounting Depth: 3-15/16"

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NVX NE102S w/ Alpine S2-W10D4

Dual 10" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.2 Cu. Ft. with Polyfil and NVX Logo w/10" S-Series Dual 4-ohm Car Subwoofer

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NVX NE102S w/ Alpine S2-W10D4

Dual 10" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.2 Cu. Ft. with Polyfil and NVX Logo w/10" S-Series Dual 4-ohm Car Subwoofer

•10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.20 cubic feet
• Premium Black Carpet with Black NVX Logo

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $723.99
-34% $479.89

In stock

Add to Cart

•10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.20 cubic feet
• Premium Black Carpet with Black NVX Logo

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