Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In
  1. Home
  2. Diamond Audio Store
  3. Diamond Audio Car Audio & Electronics
  4. Diamond Audio Car Subwoofers
  5. Diamond Audio Car Subwoofer Boxes

Diamond Audio Car Subwoofer Boxes for your 2009 Impreza

Your Vehicle

close
Checkmark Icon
2009 Impreza
Product results for your vehicle – confirm details to verify fitment.
Update vehicle | Remove vehicle | Vehicle store

Top sellers

Filters
Diamond Audio ✕
Clear Filters
Reset Done
Show products that do not fit
Product Type
Price Range
Number of Subwoofers
This value represents the number of subwoofers that the enclosure accommodates or that are included in the package or bundled kit.
Box Type
Represents the style of the enclosure. Be sure to purchase the appropriate enclosure type and internal volume that will be compatible with your subwoofer's recommendation.

Sealed - Sealed boxes are those that have no holes or vents in it. The only hole in a sealed box is where the subwoofer is installed. Smaller sealed boxes require more power than a larger sealed box. They provide a tight, accurate bass, while the larger sealed enclosures provide a "boomier" and louder bass.

Ported / Vented - Ported/Vented Enclosures provide an even boomier, louder bass, but less accurate then a small, sealed box. Ported enclosures typically require more airspace per sub and also less power output from an amplifier to perform correctly.

Bandpass - Bandpass enclosures make subwoofers perform efficiently, but loose. The bass is not as "boomy" as a ported enclosure nor as punchy as a sealed enclosure. Bandpass enclosures work well with lower to mid-level subwoofers.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
Box Exterior Color
The color of the enclosure's exterior/outer finish.
Total Box Volume
The internal volume measurement in cubic feet before subwoofer magnet displacement.
Box Style/Shape
The box style or shape refers to the actual shape of the box. Square and rectangular boxes are straight-edged boxes on all sides, whereas hatchback and truck style enclosures feature an angled front or back design that allows for installation in places short on depth such as single cab pickup trucks. You can also use such enclosures in hatchback cars or other vehicles where space is a premium. Tube and cylinder shaped boxes were made popular by Bazooka and are a great option for those looking for a nice amount of bass without sacrificing lots of space. They may even fit in locations that slim truck boxes cannot fit in. If the enclosure is vehicle specific, we encourage you to read the product description to find out which vehicles the enclosure is made for.
Deals
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
Availability
filter-icon Filters & Sort

Diamond Audio DESMB10

800W Peak (400W RMS) Loaded Single 10" Vented Enclosure

DESMB10 big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DESMB10

800W Peak (400W RMS) Loaded Single 10" Vented Enclosure

• Ported enclosure with 1 10" DES Series Subwoofer
• 400 watts RMS (800 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 20.9" L x 12.9" H x 7.8" W

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

VIP Product Get $43.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$429.99

In stock

Only 2 Left!

Add to Cart

• Ported enclosure with 1 10" DES Series Subwoofer
• 400 watts RMS (800 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 20.9" L x 12.9" H x 7.8" W

Diamond Audio DESMB8D

1000W Peak (500W RMS) Loaded Dual 8" Vented Enclosure

DESMB8D big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DESMB8D

1000W Peak (500W RMS) Loaded Dual 8" Vented Enclosure

• Ported enclosure with 2 8" DES Series Subwoofer
• 500 watts RMS (1000 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 36" L x 12" H x 5" W

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

VIP Product Get $52.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$519.99

In stock

Only 1 Left!

Add to Cart

Diamond Audio DESMB8A

500W Peak (250W RMS) Loaded Single 8" Vented Amplified Enclosure

DESMB8A big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DESMB8A

500W Peak (250W RMS) Loaded Single 8" Vented Amplified Enclosure

• 8" Amplified Loaded Subwoofer System
• 250 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Wired Remote Bass Level Control
• Speaker-level (high-level) input via RCA

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

VIP Product Get $48.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$479.99

In stock.

Add to Cart

Diamond Audio DESMB10DA

1600W Peak (800W RMS) Loaded Dual 10" Vented Amplified Enclosure

DESMB10DA big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DESMB10DA

1600W Peak (800W RMS) Loaded Dual 10" Vented Amplified Enclosure

• 10" Amplified Loaded Subwoofer System
• 800 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Wired Remote Bass Level Control
• Speaker-level (high-level) input via RCA

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

VIP Product Get $76.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$759.99

In stock.

Add to Cart

Diamond Audio DESMB10A

800W Peak (400W RMS) Loaded Single 10" Vented Amplified Enclosure

DESMB10A big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DESMB10A

800W Peak (400W RMS) Loaded Single 10" Vented Amplified Enclosure

• 10" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Wired Remote Bass Level Control
• Speaker-level (high-level) input via RCA

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

VIP Product Get $55.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$549.99

In stock.

Add to Cart

Diamond Audio DESMB12A

1000W Peak (500W RMS) Loaded Single 12" Vented Amplified Enclosure

DESMB12A big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DESMB12A

1000W Peak (500W RMS) Loaded Single 12" Vented Amplified Enclosure

• 12" Amplified Loaded Subwoofer System
• 500 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Wired Remote Bass Level Control
• Speaker-level (high-level) input via RCA

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

VIP Product Get $65.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$649.99

In stock.

Add to Cart

Diamond Audio DESMB8

500W Peak (250W RMS) Loaded Single 8" Vented Enclosure

DESMB8 big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DESMB8

500W Peak (250W RMS) Loaded Single 8" Vented Enclosure

• Ported enclosure with 1 8" DES Series Subwoofer
• 250 watts RMS (500 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 18" L x 12" H x 5" W

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

VIP Product Get $33.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$329.99

In stock

Only 1 Left!

Add to Cart

Diamond Audio DESMB12

1000W Peak (500W RMS) Loaded Single 12" Vented Enclosure

DESMB12 big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DESMB12

1000W Peak (500W RMS) Loaded Single 12" Vented Enclosure

• Ported enclosure with 1 12" DES Series Subwoofer
• 500 watts RMS (1000 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 20.9" L x 12.9" H x 7.8" W

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

VIP Product Get $52.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$519.99

In stock.

Add to Cart

Diamond Audio DESMB10D

1600W Peak (800W RMS) Loaded Dual 10" Vented Enclosure

DESMB10D big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DESMB10D

1600W Peak (800W RMS) Loaded Dual 10" Vented Enclosure

• Ported enclosure with 2 10" DES Series Subwoofer
• 800 watts RMS (1600 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 40.3" L x 12.9" H x 7.8" W

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

VIP Product Get $62.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$619.99

In stock.

Add to Cart

Diamond Audio DESMB8DA

1000W Peak (500W RMS) Loaded Dual 8" Vented Amplified Enclosure

DESMB8DA big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio DESMB8DA

1000W Peak (500W RMS) Loaded Dual 8" Vented Amplified Enclosure

• 8" Amplified Loaded Subwoofer System
• 250 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Wired Remote Bass Level Control
• Speaker-level (high-level) input via RCA

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

VIP Product Get $70.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$699.99

In stock.

Add to Cart

Diamond Audio MSRGRSUB

400W Peak (200W RMS) Loaded Single 10" Sealed Marine Enclosure

MSRGRSUB big
Go to item page Right Arrow Icon of Right Arrow

Diamond Audio MSRGRSUB

400W Peak (200W RMS) Loaded Single 10" Sealed Marine Enclosure

• Sealed enclosure with 1 10" MotorSport Series Subwoofer
• 200 watts RMS (400 watts Peak)
• Final Impedance: 4-ohm
• Dimensions: 6" L x 12" H x 10" W

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

VIP Product Get $77.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$769.99

Available

Ships in 10-14 days

Add to Cart
 
    Clear all
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    Save up to 10 different vehicles in your garage
    Vehicle
    Store     Delete

    2011 Lexus LX570

    2009 Subaru Impreza

    2016 Ford Edge

    2008 GMC Envoy

    2016 Nissan Versa

    1983 Dodge 400

    2015 Ford Transit Connect

    2016 Nissan Pathfinder

    2013 Nissan Maxima

    2001 Nissan Sentra

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm

    Cancel

    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue

    Cancel

    Shop your 2009 Impreza
    Why Use a Vehicle Fit Guide?
    Change vehicle | Shop without vehicle
    Whoa! Slow down. Add your details below!
    additional information required
    Add vehicle details to confirm fitment
    Ignore fitment details
    Find stereos and more that work -- fast.

    Additional information:

    Remove

    Can't find your vehicle? Click here and we'll help.

    Where to find vehicle info

    Go to Fitment

    Didn't find your car?

    Submit your details and we'll help!
    Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon
    Back

    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

    Back
    Track your order
    Call our experts
    Support Center
    Return & Exchanges
    Follow on Instagram Instagram logo
    Subscribe on YouTube YouTube logo