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2004 GMC Sierra Denali

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Subwoofers and enclosures, specifically designed for your 2004 Sierra Denali, 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 Add Remote Start Dads & Grads Sale

Subwoofers and Boxes for 2004 GMC Sierra Denali

A subwoofer that works with, or is designed for, your 2004 GMC Sierra Denali 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.

Custom-fit subwoofer box

Custom-fit Subwoofer Boxes & Enclosures

Get a sub box designed specifically for your Sierra Denali.

Subwoofer bass packages

Universal Subwoofer Bass Packages

These packages include an amp, sub(s), an enclosure and amplifier wiring. They should fit your GMC Sierra Denali, 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 Sierra Denali, 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 Sierra Denali, 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.
Punch Series (72)
S Series (46)
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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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Belva BBX112BL (BLUE)

1.842 cu ft. Single 12" Ported Car Subwoofer Box Enclosure with Custom Blue Baffle

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Belva BBX112BL (BLUE)

1.842 cu ft. Single 12" Ported Car Subwoofer Box Enclosure with Custom Blue Baffle

• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard Construction
• Blue Finish Panel
• Durable Black Carpet
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals
• Total box volume: 1.842 Cubic Feet

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List price $129.99
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• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard Construction
• Blue Finish Panel
• Durable Black Carpet
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals
• Total box volume: 1.842 Cubic Feet

Diamond Audio DES84

500W Peak (250W RMS) 8" DES Series Dual 4-ohm Car Subwoofer

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Diamond Audio DES84

500W Peak (250W RMS) 8" DES Series Dual 4-ohm Car Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Fiber-Reinforced High Strength Paper Cone
• Impedance: Dual 4 ohm
• Sensitivity: 82.1 dB

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Tru Spec Single 10" (1446CO)

Empty Single 10" Vented Prefabricated Enclosure

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Tru Spec Single 10" (1446CO)

Empty Single 10" Vented Prefabricated Enclosure

• 10" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1 cubic feet
• Compatible for Sundown SA10V2 and similar subwoofers (Sold separately)

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List price $229.99
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Atrend 12TKD

Empty Dual 12" Truck Sealed Subwoofer Enclosure

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Atrend 12TKD

Empty Dual 12" Truck Sealed Subwoofer Enclosure

• 12" Dual Truck Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Universal truck (wedge) enclosure design
• Miter and Dado construction
• Premium black carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 1.38 cubic feet

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Tru Spec Dual 6.5 (1456ER)

Empty Dual 6.5" Vented Prefabricated Enclosure

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Tru Spec Dual 6.5 (1456ER)

Empty Dual 6.5" Vented Prefabricated Enclosure

• 6.5" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.6 cubic feet
• Compatible for Sundown SA65V2 and similar subwoofers (Sold separately)

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Sundown Audio Z-15 v.7 D1 15" (Z15V7D1)

7000W Peak (3500W RMS) 15" Z Series V7 Dual 1-ohm Car Subwoofer (SW-ZV715D1)

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Sundown Audio Z-15 v.7 D1 15" (Z15V7D1)

7000W Peak (3500W RMS) 15" Z Series V7 Dual 1-ohm Car Subwoofer (SW-ZV715D1)

• Peak Power: 7000 watts
• RMS Power: 3500 watts
• Impedance: Dual 1 ohm
• Treated Paper Cone
• Treated Foam Surround
• Sensitivity: 91.58 dB

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• Peak Power: 7000 watts
• RMS Power: 3500 watts
• Impedance: Dual 1 ohm
• Treated Paper Cone
• Treated Foam Surround
• Sensitivity: 91.58 dB

JL Audio 8W1v3-4

150W RMS 8" W1v3 Series Single 4-ohm Car Subwoofer

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JL Audio 8W1v3-4

150W RMS 8" W1v3 Series Single 4-ohm Car Subwoofer


• RMS Power: 150 watts
• Impedance: Single 4 ohm
• Mica Injected Polypropylene - MIPP Cone
• Nitrile Butadiene Rubber NBR Surround
• Mount depth: 3.86"
• Sensitivity: 84.8 dB

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Diamond Audio DES82

500W Peak (250W RMS) 8" DES Series Dual 2-ohm Car Subwoofer

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Diamond Audio DES82

500W Peak (250W RMS) 8" DES Series Dual 2-ohm Car Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Fiber-Reinforced High Strength Paper Cone
• Impedance: Dual 2 ohm
• Sensitivity: 82 dB

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Deaf Bonce Apocalypse DB-SA272 D2

3000W Peak (1500W RMS) 12” Apocalypse Series Dual 2-ohm Car Subwoofer

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Deaf Bonce Apocalypse DB-SA272 D2

3000W Peak (1500W RMS) 12” Apocalypse Series Dual 2-ohm Car Subwoofer

• Peak Power: 3000 watts
• RMS Power: 1500 watts
• Pressed Paper Cone
• Foam Surround
• Impedance: Dual 2 ohm
• Mount depth: 7.07"
• Sensitivity: 86.20 dB

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Kicker CWRT104 (48CWRT104)

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

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Kicker CWRT104 (48CWRT104)

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

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• UV-Treated Polypropylene Cone
• UV-resistant Santoprene Surround
• Mount depth: 3-7/16"
• Sensitivity: 84.8 dB

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DS18 EXL-XX15.4DHE

4000W Peak (2000W RMS) 15" EXL Series Dual 4-ohm Car Subwoofer

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DS18 EXL-XX15.4DHE

4000W Peak (2000W RMS) 15" EXL Series Dual 4-ohm Car Subwoofer

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 4 ohm
• Paper Cone
• Foam Surround
• Mount depth: 8.86"
• Sensitivity: 88 dB

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Kicker 49VUL7X12

Empty Single 12" Vented Enclosure

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Kicker 49VUL7X12

Empty Single 12" Vented Enclosure

• 12" Dual Ported Subwoofer Enclosure
• Durable Strong Birch Plywood construction
• Designed for 12-Inch SoloX L7X subwoofers

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Kicker VL7R122 (45VL7R122)

1200W Peak (600W RMS) Loaded Single 12" Vented Enclosure

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Kicker VL7R122 (45VL7R122)

1200W Peak (600W RMS) Loaded Single 12" Vented Enclosure

• Ported enclosure with 1 12" Solo-Baric L7R Series Subwoofer
• 600 watts RMS (1200 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 28" L x 15" H x 8-1/2" W x 14-7/8" W2

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List price $429.99
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DS18 EXL-XX15.2DHE

4000W Peak (2000W RMS) 15" EXL Series Dual 2-ohm Car Subwoofer

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DS18 EXL-XX15.2DHE

4000W Peak (2000W RMS) 15" EXL Series Dual 2-ohm Car Subwoofer

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Paper Cone
• Foam Surround
• Impedance: Dual 2 ohm
• Mount depth: 8.86"
• Sensitivity: 88 dB

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Orion HCCA122

10000W Peak (2500W RMS) 12" HCCA Series Dual 2-ohm Competition Car Subwoofer

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Orion HCCA122

10000W Peak (2500W RMS) 12" HCCA Series Dual 2-ohm Competition Car Subwoofer

• Peak Power: 10000 watts
• RMS Power: 2500 watts
• Impedance: Dual 2 ohm
• Moisture and UV-resistant Paper cone
• Nitrile Butadiene Rubber (NBR)-Foam surround
• Mount depth: 10.28"
• Sensitivity: 84.22 dB

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• Peak Power: 10000 watts
• RMS Power: 2500 watts
• Impedance: Dual 2 ohm
• Moisture and UV-resistant Paper cone
• Nitrile Butadiene Rubber (NBR)-Foam surround
• Mount depth: 10.28"
• Sensitivity: 84.22 dB

Tru Spec Dual 8" (1458GTO)

Empty Dual 8" Vented Prefabricated Enclosure for Sundown SA8V2 Subwoofers

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Tru Spec Dual 8" (1458GTO)

Empty Dual 8" Vented Prefabricated Enclosure for Sundown SA8V2 Subwoofers

• 8" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.30 cubic feet
• Compatible for Sundown SA8V2 and similar subwoofers (Sold separately)

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Kicker CWRT122 (48CWRT122)

1000W Peak (500W RMS) 12" CompRT Series Dual 2-ohm Shallow Car Subwoofer

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Kicker CWRT122 (48CWRT122)

1000W Peak (500W RMS) 12" CompRT Series Dual 2-ohm Shallow Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Dual 2 ohm
• UV-Treated Polypropylene Cone
• UV-resistant Santoprene Surround
• Mount depth: 3-3/4"
• Sensitivity: 85.5 dB

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List price $279.99
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JL Audio 6W3V3-4

150W RMS 6.5" W3v3 Series Single 4-ohm Car Subwoofer

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JL Audio 6W3V3-4

150W RMS 6.5" W3v3 Series Single 4-ohm Car Subwoofer

• RMS Power: 150 watts
• Impedance: Single 4 ohm
• Mineral-Filled Polypropylene Cone
• Nitrile Butadiene Rubber NBR Surround
• Mount depth: 4.25"
• Sensitivity: 80.49 dB

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Sundown Audio SA-12 Classic D4 12" (SA12CLD4)

2000W Peak (1000W RMS) 12" SA Classic Series Dual 4-ohm Car Subwoofer (SW-SACL12D4)

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Sundown Audio SA-12 Classic D4 12" (SA12CLD4)

2000W Peak (1000W RMS) 12" SA Classic Series Dual 4-ohm Car Subwoofer (SW-SACL12D4)

• Peak Power: 2000 watts
• RMS Power: 1000 watts
• Impedance: Dual 4 ohm
• Competition Grade Paper Cone
• Treated Foam Surround
• Mount depth: 6.5"
• Sensitivity: 84.22 dB

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NVX NE121P

Single 12" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.75 Cu. Ft. with Polyfil and NVX Logo

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NVX NE121P

Single 12" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.75 Cu. Ft. with Polyfil and NVX Logo

• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.75 cubic feet
• Premium Black Carpet with Black NVX Logo

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