SKU: 40484615884

LAB PreFab™ 4.00 ft^3 Ported MDF Enclosure Box for Dual 12" Round Car Subwoofers

Sale price$184.50 Regular price$205.00
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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

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Description

LAB PreFab™ 4.00 ft^3 Ported MDF Enclosure Box for Dual 12" Round Car SubwoofersWhat kind of subwoofers does this fit? This enclosure is precision built for two (2) standard 12" round subwoofers. The cutout diameters are exactly 11. 125" (11 1 8"). Will it fit in my vehicle? Yes, it features a maximized internal airspace configuration while maintaining a heavy duty 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 subwoofers does this fit?
This enclosure is precision-built for two (2) standard 12" round subwoofers. The cutout diameters are exactly 11.125" (11-1/8").

Will it fit in my vehicle?
Yes, it features a maximized internal airspace configuration while maintaining a heavy-duty 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 splits a generous 4.00 ft³ shared internal volume optimized with a high-velocity custom slot-port tuned to 32Hz. By matching proper volumetric requirements and optimized port dimensions, it delivers incredibly deep, aggressive, and highly efficient low-frequency extension tailored perfectly to high-performance round 12-inch subwoofers. It features upgraded 2" round nickel-plated binding posts 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:
  • Dual 12-inch vented round woofer enclosure
  • Compatible with two (2) standard 12" round subwoofers
  • 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 posts
  • Made in California, U.S.A.

  • Enclosure volume: 4.00 ft^3 (before drivers' displacement)
  • Peak tuning frequency (Fb): 32Hz
  • Sub cutouts: 2x 11.125" (11-1/8") Round
  • 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:
  1. 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
SKU: 40484615884

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4.6 ★★★★★
Based on 12 reviews
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L
Verified Purchase
LM
Louisville, US
★★★★★ 2
All plastic
Color: Silver
Not steel at all. All plastic
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
M
Verified Purchase
Melissa Applegate
Belleville, US
★★★★★ 5
Strong Suction Cups
Color: Silver
I didn't realize that this caddy came with the option to use suction cups or adhesive hooks. I opted for the suction cups and was pleasantly surprised at their strength. I loaded the caddy up with a couple of sponges, fingernail brush, and a dishwashing brush (filled with liquid soap) and have had no problems with the caddy remaining strongly secured. It's a great little organizer and looks really nice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2025
K
Verified Purchase
Kristen L. Mitchell
Massapequa, US
★★★★★ 5
GREAT Suction!! Looks fantastic!
Color: Silver, Color: Silver
I wanted to find a sponge holder with great suction for our ceramic sink. This is the REAL DEAL! I saw one or two complaints on the reviews below but obviously they are doing something wrong, because if you just follow the instructions (make sure the sink is clean and dry where you stick it), it works perfectly. I've had it for about 3 weeks now and we use it every single day and it has never slipped even once. The suction cups are big and made of good plastic so they really do the job. It hasn't budged from the spot where I placed it. It's also easy to take the caddy off of the suction cups when you want to clean the sink without moving the suction cups. You can peel them off easily and reposition them but they will not move unless you want them too. It's also the perfect size and looks great. Perfect for holding a stick sponge upright so that the soap doesn't leak out of it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 14, 2020
S
Verified Purchase
SonicHog
Fort Morgan, US
★★★★★ 4
Great product. Suction can be improved though.
Color: Silver
I'm satisfied with my purchase. It gets the job done. The suction pads can definitely be improved though, I found that pads couldn't keep the holder in place for more than an hour so I just removed the suction pads and kept it beside my sink. Overall, great product. Would definitely recommend.
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Reviewed in the United States on December 13, 2020
T
Verified Purchase
Timothy Jeandrevin
Belleville, US
★★★★★ 5
It actually sticks to the sink and stays where it is supposed to. Well made. We love it!
Color: Silver
Finely, a sink caddy that actually sticks to the sink! We have been so frustrated trying to find one that does. This one is great. We just used the suction cups, which are large and there are 3 of them. If finely actually stays there!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026

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