BassHead Supply American Bass Subwoofer Boxes
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American Bass Single 18" Godzilla Subs Up Port Back Ported Enclosure
Vendor:Basshead SupplyRegular price $1,128.99 USDRegular priceSale price $1,128.99 USD -
American Bass Single 18" King Subs Up Port Back Ported Enclosure
Vendor:Basshead SupplyRegular price $1,128.99 USDRegular priceSale price $1,128.99 USD -
American Bass Single 18" XMAXXX Monster Subs Up Port Back Ported Enclosure
Vendor:Basshead SupplyRegular price $1,128.99 USDRegular priceSale price $1,128.99 USD -
American Bass Dual 12" Godzilla Ported Enclosure
Vendor:Basshead SupplyRegular price $944.99 USDRegular priceSale price $944.99 USD -
American Bass Dual 15" Godzilla Ported Enclosure
Vendor:Basshead SupplyRegular price $1,811.99 USDRegular priceSale price $1,811.99 USD -
American Bass Dual 15" King Ported Enclosure
Vendor:Basshead SupplyRegular price $1,811.99 USDRegular priceSale price $1,811.99 USD -
American Bass Dual 15" XMAXXX Monster Ported Enclosure
Vendor:Basshead SupplyRegular price $1,811.99 USDRegular priceSale price $1,811.99 USD -
American Bass Dual 15" XFL Ported Enclosure
Vendor:Basshead SupplyRegular price $1,204.99 USDRegular priceSale price $1,204.99 USD -
American Bass Dual 10" XFL Ported Enclosure
Vendor:Basshead SupplyRegular price $599.99 USDRegular priceSale price $599.99 USD -
American Bass Dual 12" XMAXXX Monster Ported Enclosure
Vendor:Basshead SupplyRegular price $944.99 USDRegular priceSale price $944.99 USD -
American Bass Dual 12" XFL Ported Enclosure
Vendor:Basshead SupplyRegular price $755.99 USDRegular priceSale price $755.99 USD -
American Bass Dual 12" King Ported Enclosure
Vendor:Basshead SupplyRegular price $944.99 USDRegular priceSale price $944.99 USD -
American Bass Single 10" XFL Ported Enclosure
Vendor:Basshead SupplyRegular price $441.99 USDRegular priceSale price $441.99 USD -
American Bass Single 15" XFL Ported Enclosure
Vendor:Basshead SupplyRegular price $755.99 USDRegular priceSale price $755.99 USD -
American Bass Single 12" XMAXXX Monster Ported Enclosure
Vendor:Basshead SupplyRegular price $665.99 USDRegular priceSale price $665.99 USD -
American Bass Single 12" Godzilla Ported Enclosure
Vendor:Basshead SupplyRegular price $665.99 USDRegular priceSale price $665.99 USD -
American Bass Single 12" King Ported Enclosure
Vendor:Basshead SupplyRegular price $665.99 USDRegular priceSale price $665.99 USD -
American Bass Single 15" XMAXXX Monster Ported Enclosure
Vendor:Basshead SupplyRegular price $918.99 USDRegular priceSale price $918.99 USD -
American Bass Single 15" King Ported Enclosure
Vendor:Basshead SupplyRegular price $918.99 USDRegular priceSale price $918.99 USD -
American Bass Single 15" Godzilla Ported Enclosure
Vendor:Basshead SupplyRegular price $918.99 USDRegular priceSale price $918.99 USD -
American Bass Single 12" XFL Ported Enclosure
Vendor:Basshead SupplyRegular price $535.99 USDRegular priceSale price $535.99 USD
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American Bass Single 18" Godzilla Subs Up Port Back Ported EnclosureCustom built enclosure specifically for the American Bass Godzilla 18" subwoofer. Specifications: 6.0 cubic fee...$1,128.99 -
American Bass Single 18" King Subs Up Port Back Ported EnclosureCustom built enclosure specifically for the American Bass King 18" subwoofer. Specifications: 6.0 cubic feet ne...$1,128.99 -
American Bass Single 18" XMAXXX Monster Subs Up Port Back Ported EnclosureCustom built enclosure specifically for the American Bass XMAXXX Monster 18" subwoofer. Specifications: 6.0 cub...$1,128.99 -
American Bass Dual 12" Godzilla Ported EnclosureCustom built enclosure specifically for the American Bass Godzilla 12" subwoofer. Specifications: 5.0 cubic fee...$944.99 -
American Bass Dual 15" Godzilla Ported EnclosureCustom built enclosure specifically for the American Bass Godzilla 15" subwoofer. Specifications: 9.0 cubic fee...$1,811.99 -
American Bass Dual 15" King Ported EnclosureCustom built enclosure specifically for the American Bass King 15" subwoofer. Specifications: 9.0 cubic feet ne...$1,811.99 -
American Bass Dual 15" XMAXXX Monster Ported EnclosureCustom built enclosure specifically for the American Bass XMAXXX Monster 15" subwoofer. Specifications: 9.0 cub...$1,811.99 -
American Bass Dual 15" XFL Ported EnclosureCustom built enclosure specifically for the American Bass XFL 15" subwoofer. Specifications: 7.5 cubic feet net...$1,204.99 -
American Bass Dual 10" XFL Ported EnclosureCustom built enclosure specifically for the American Bass XFL 10" subwoofer. Specifications: 2.5 cubic feet net...$599.99 -
American Bass Dual 12" XMAXXX Monster Ported EnclosureCustom built enclosure specifically for the American Bass XMAXXX Monster 12" subwoofer. Specifications: 5.0 cub...$944.99 -
American Bass Dual 12" XFL Ported EnclosureCustom built enclosure specifically for the American Bass XFL 12" subwoofer. Specifications: 4.0 cubic feet net...$755.99 -
American Bass Dual 12" King Ported EnclosureCustom built enclosure specifically for the American Bass King 12" subwoofer. Specifications: 5.0 cubic feet ne...$944.99 -
American Bass Single 10" XFL Ported EnclosureCustom built enclosure specifically for the American Bass XFL 10" subwoofer. Specifications: 1.25 cubic feet ne...$441.99 -
American Bass Single 15" XFL Ported EnclosureCustom built enclosure specifically for the American Bass XFL 15" subwoofer. Specifications: 3.75 cubic feet ne...$755.99 -
American Bass Single 12" XMAXXX Monster Ported EnclosureCustom built enclosure specifically for the American Bass XMAXXX Monster 12" subwoofer. Specifications: 2.5 cub...$665.99 -
American Bass Single 12" Godzilla Ported EnclosureCustom built enclosure specifically for the American Bass Godzilla 12" subwoofer. Specifications: 2.5 cubic fee...$665.99 -
American Bass Single 12" King Ported EnclosureCustom built enclosure specifically for the American Bass King 12" subwoofer. Specifications: 2.5 cubic feet ne...$665.99 -
American Bass Single 15" XMAXXX Monster Ported EnclosureCustom built enclosure specifically for the American Bass XMAXXX Monster 15" subwoofer. Specifications: 4.5 cub...$918.99 -
American Bass Single 15" King Ported EnclosureCustom built enclosure specifically for the American Bass King 15" subwoofer. Specifications: 4.5 cubic feet ne...$918.99 -
American Bass Single 15" Godzilla Ported EnclosureCustom built enclosure specifically for the American Bass Godzilla 15" subwoofer. Specifications: 4.5 cubic fee...$918.99 -
American Bass Single 12" XFL Ported EnclosureCustom built enclosure specifically for the American Bass XFL 12" subwoofer. Specifications: 2.0 cubic feet net...$535.99
BassHead Supply American Bass Subwoofer Boxes
Sold by AudioSellerz.com
Shop American Bass subwoofer boxes built by BassHead Supply for specific XFL, Godzilla, King and XMAXXX Monster subwoofer applications. Compare single and dual ported enclosures, then match the box to your exact woofer model, size and available vehicle space.
These are BassHead Supply-built enclosures designed for the American Bass subwoofers named in each listing. Start with the driver you own or plan to purchase rather than choosing a box by speaker diameter alone.
Shop all BassHead Supply enclosures | Shop American Bass equipment | Shop all subwoofer boxes
Choose an Enclosure for Your American Bass Series
American Bass XFL Subwoofer Boxes
Compare single and dual American Bass XFL enclosure listings for 10-, 12- and 15-inch subwoofers. Select the box intended for your woofer size and quantity, then check its full specifications before ordering.
For an XFL 12-inch installation, the single and dual examples below provide two different starting points. Choosing between them means planning the complete installation, including cabinet size, amplifier requirements and how much vehicle space you are willing to use.
American Bass Godzilla, King and XMAXXX Monster Boxes
This collection also includes enclosures for Godzilla, King and XMAXXX Monster applications, including single and dual 12- and 15-inch layouts and single-18 designs.
Use the product name to identify the intended series, size and quantity. Do not assume that an XFL enclosure is suitable for a Godzilla, King or XMAXXX Monster driver simply because the nominal subwoofer diameter matches.
Compare American Bass Ported Enclosure Examples
The examples below show how enclosure volume and tuning vary by application. Net volume is listed for the complete enclosure, not per subwoofer.
| Enclosure | Intended Layout | Listed Total Net Volume | Listed Tuning |
|---|---|---|---|
| American Bass Single 12" XFL Ported Enclosure | One XFL 12-inch subwoofer | 2.0 cubic feet | 33 Hz |
| American Bass Dual 12" XFL Ported Enclosure | Two XFL 12-inch subwoofers | 4.0 cubic feet | 33 Hz |
| American Bass Dual 12" Godzilla Ported Enclosure | Two Godzilla 12-inch subwoofers | 5.0 cubic feet | 32 Hz |
| American Bass Single 18" King Ported Enclosure | One King 18-inch subwoofer | 6.0 cubic feet | 30 Hz |
| American Bass Single 15" XMAXXX Monster Ported Enclosure | One XMAXXX Monster 15-inch subwoofer | 4.5 cubic feet | 30 Hz |
These are specifications for the named enclosure listings, not universal box recommendations. Review the current product page and confirm your exact subwoofer version before purchasing. Do not choose a larger enclosure or lower tuning frequency without checking compatibility.
Single vs. Dual American Bass Subwoofer Boxes
A single-subwoofer enclosure is the starting point for a one-woofer installation. A dual enclosure is intended for two drivers and requires planning around the complete cabinet and both subwoofers.
For example, the featured single XFL 12 enclosure measures 24.25 inches wide, 15 inches tall and 17 inches deep. The dual XFL 12 enclosure measures 34.375 inches wide, 15 inches tall and 22 inches deep. Compare the actual dimensions rather than assuming a dual box will fit wherever a single box fits.
Ported Enclosures and Tuning
The featured boxes are ported designs. Their internal airspace and port dimensions work together to establish the enclosure tuning. The stated 30, 32 and 33 Hz figures belong to the specific examples above rather than one recommended tuning for every American Bass subwoofer.
Considering a different enclosure type? Read our sealed versus ported subwoofer box guide. That comparison does not mean the featured ported boxes are also available as sealed versions.
Birch Construction and Gray Finish
The featured single and dual XFL 12-inch listings specify 3/4-inch birch plywood construction with a 1-inch front baffle. The selected Godzilla, King and XMAXXX Monster examples specify 1-inch plywood with birch veneer construction.
All five examples list a gray stained finish and binding posts pre-wired with 10-gauge OFC wire. Check each product page for its own materials, bracing, dimensions and included hardware rather than assuming every BassHead Supply enclosure is built identically.
Check Subwoofer Fit and Vehicle Space
Choosing the correct American Bass subwoofer enclosure requires checking both the driver and the installation space.
- Confirm the woofer: Check the exact series, version, size, quantity, cutout diameter, mounting depth and clearance requirements.
- Confirm the enclosure: Compare its intended application, net volume and port specifications with the subwoofer requirements.
- Confirm the vehicle: Measure the available width, height and depth, plus the opening the cabinet must pass through. Allow space around the woofer, port and wiring.
Exterior dimensions are not the same as net internal airspace. Cabinet walls, ports, bracing and the subwoofer occupy space that must be accounted for in enclosure design.
A subwoofer-specific box is not automatically vehicle-specific. Do not assume that a listed enclosure fits under a truck seat or through a trunk opening without measuring first.
Match the Amplifier to the Subwoofer System
Choose amplifier power using the subwoofers' RMS requirements, voice-coil configuration, quantity and final wired impedance. A box's dimensions or material do not determine which amplifier you need.
Compare our monoblock car audio amplifiers and use the subwoofer wiring diagrams and ohm-load guide when planning the electrical connection.
Made-to-Order Enclosures and Lead Time
The five featured enclosure listings state a 2β3-week lead time and no refunds once the enclosures have been cut out. Review the current timing and ordering conditions on your selected product page before purchasing.
Confirm the subwoofer application and vehicle measurements before production begins. Do not treat a stated production lead time as a guaranteed delivery date.
American Bass Subwoofer Box FAQs
Who makes these American Bass subwoofer boxes?
The featured enclosures are built by BassHead Supply for the American Bass subwoofer models identified in their listings. American Bass names identify the intended woofer applications.
Does the box include an American Bass subwoofer?
Do not assume a subwoofer or amplifier is included because a woofer model appears in the enclosure name. Review the individual listing's included items before treating it as a loaded enclosure or complete bass package.
Can I use an XFL box for another American Bass series?
Compatibility must be checked for the exact driver and enclosure. Matching speaker diameter alone does not establish the correct cutout, mounting clearance, airspace or tuning.
What size box does an American Bass 12-inch subwoofer need?
Start with the exact series and driver quantity. The featured dual XFL 12 enclosure lists 4.0 cubic feet net, while the featured dual Godzilla 12 enclosure lists 5.0 cubic feet net. Those differences are why there is no single box size to recommend for every American Bass 12-inch system.
Can Audio Sellerz help me choose an enclosure?
Yes. Send your exact subwoofer model and version, quantity, amplifier model, vehicle and maximum available enclosure dimensions. Include the measurements of the opening the box must pass through.
Shop BassHead Supply American Bass Subwoofer Boxes
Compare the listed XFL, Godzilla, King and XMAXXX Monster enclosure applications, check the specifications and choose the box around your actual build.
Need help narrowing down the options? Use the live chat on AudioSellerz.com before ordering. For other subwoofer applications, browse our complete BassHead Supply enclosure collection.




















