Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
LAB PreFab™ 4.00 ft^3 Ported MDF Enclosure Box for Single 15" Round Car SubwooferWhat kind of subwoofer does this fit? This enclosure is precision built for a single standard 15" round subwoofer. The cutout diameter is exactly 14. 125" (14 1 8"). Will it fit in my vehicle? Yes, it features a maximized internal airspace configuration while maintaining a high output deep cabinet profile suited for SUVs, trucks, large trunks, and cargo areas. The exact external dimensions are 33" W x 16. 50" H x 21" D. How is the performance and
What kind of subwoofer does this fit?
This enclosure is precision-built for a single standard 15" round subwoofer. The cutout diameter is exactly 14.125" (14-1/8").
Will it fit in my vehicle?
Yes, it features a maximized internal airspace configuration while maintaining a high-output deep cabinet profile suited for SUVs, trucks, large trunks, and cargo areas. The exact external dimensions are 33" W x 16.50" H x 21" D.
How is the performance and wiring?
Designed as a true high-end, custom-ported specification, this cabinet steps far out of the lane of generic boxes. It is precision-engineered with a massive 4.00 ft³ of internal volume and a high-velocity custom slot-port tuned to 32Hz to deliver incredibly deep, heavy-hitting, and highly efficient low-frequency extension tailored perfectly to high-performance round 15-inch subwoofers. It features an upgraded 2" round nickel-plated binding post for secure and reliable wiring connections.
PreFab™ Custom-Spec Series: The Off-The-Shelf Custom Enclosure
In the car audio community, off-the-shelf boxes usually mean thin panels, generic tuning, and choked output. We developed the LAB PreFab™ Custom-Spec series to completely rewrite that narrative. Proudly manufactured in the USA, this series delivers true custom-shop acoustic performance without the custom-shop price tag or wait times.
Each cabinet is precision-cut from solid high-grade MDF and engineered around a highly optimized, high-velocity custom slot-port design. Instead of generic calculation curves, these enclosures are built around real-world manufacturer specifications to ensure proper port area, maximum flow, and ideal airspace matching. It is the ultimate plug-and-play solution for audiophiles and daily bassheads who refuse to compromise on custom-level low-end extension.
The Custom-Spec Advantage:
- True Custom Slot-Porting: Engineered with optimized port areas and precise tuning to replicate custom-shop low-end extension and power handling.
- American Made Solid Build: Designed, cut, and assembled in the USA using high-grade CNC-cut MDF to ensure maximum acoustic efficiency.
- Manufacturer-Spec Airspace: Built closer to specialized manufacturer parameters than any generic box on the market—ready to ship, ready to slam.
Technical Specifications:
- Single 15-inch vented round woofer enclosure
- Compatible with one (1) standard 15" round subwoofer
- Constructed of 0.63" CNC-cut high-grade MDF
- Reinforced 1.25" MDF double-layered front baffle to prevent panel flex under extreme load
- High-grade black automotive carpet finish
- Upgraded 2" round nickel-plated binding post
- Made in California, U.S.A.
- Enclosure volume: 4.00 ft^3 (before driver's displacement)
- Peak tuning frequency (Fb): 32Hz
- Sub cutout diameter: 14.125" (14-1/8")
- Max mounting depth: 19.50"
- Dimensions: 33"W x 16.50"H x 21"D
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 909 reviews
Sort
Product Reviews
★★★★★ 5
Beautiful shelf brackets
Style: L Bracket w/ Lip, Size: 9.25" x 6", Style: L Bracket w/ Lip, Size: 9.25" x 6"
I am extremely please with the brackets but had a hell of a time installing them. It is only me, so I had to be careful with making sure they were horizontal, etc. The little levelers are cute but definitely not a help. Use a standard size leveler. Also - I used the anchors provided for the drywall and they punched in two big holes. I ended up buying a different kind of anchor to put in the middle bracket (my first intentions were to use three brackets to make sure the shelf would hold). I was lucky that the size of the shelf I wanted coincided with the 2x4s in the walls so I was able to anchor the brackets and shelves to the 2x4s in the walls., so my shelves are very sturdy. I bought 3 sets intending to put up 4 shelves with 3 brackets but only did 2 shelves with 3 and 2 brackets, respectively. I like the look so much that I am keeping the ones that are unused and installing them in my bedroom for my books. Right now, I am extremely happy with them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 27, 2022
★★★★★ 4
Sturdy/Heavy brackets
Style: L Bracket w/ Lip, Size: 9.25" x 6"
We wanted to replace our awful white wire shelving in our pantry and purchased these brackets. Had the wood shelves cut to fit so very easy to install the shelving on top. The lip at the end of the bracket holds the shelf so the brackets do not need to be attached to the shelf. The brackets are very sturdy, heavy metal so they definitely hold the wood shelves and pantry items. Only complaint -the screws that are included. Some of the screws stripped or broke while trying to attach the brackets to the wall studs. They do include an extra screw in each box I guess for this purpose but we still had to purchase additional screws to replace the broken ones. Very frustrating but the finished result looks great and the brackets were an easy fix to replace the old shelving.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2023
★★★★★ 5
Sent more screws when needed!
Style: L Bracket w/ Lip, Size: 9.25" x 6", Style: L Bracket w/ Lip, Size: 9.25" x 6"
Screw heads frequently stripped, and on 3 the head sheared clear off. All this despite drilling pilot holes and lubricating screws.
The seller was wonderful though and sent extra screws at no extra cost. Looks great and holds well now that complete!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 12, 2025
★★★★★ 5
Great product!
Style: L Bracket w/ Lip, Size: 7.25" x 6", Style: L Bracket w/ Lip, Size: 7.25" x 6"
These brackets worked great! They are strong and hold the 32 jars of peaches easily.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 8, 2025
★★★★★ 2
White isn’t Right
The product itself seems to be a good quality, and I did like the design but couldn’t rate it very high based on the white not at all being the right color. It was like a light purply gray ..: especially up against a white wall it was very prominently wrong.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2024