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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
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Description
LAB PreFab™ 1.50 ft^3 Ported MDF Enclosure Box for Dual 8" Round Car SubwoofersWhat kind of subwoofers does this fit? This enclosure is precision built for two (2) standard 8" round subwoofers. The cutout diameters are exactly 7. 125" (7 1 8"). Will it fit in my vehicle? Yes, it features a practical shared space footprint designed to maximize dual subwoofer output while keeping a space conscious profile in your trunk or cargo area. The exact external dimensions are 30" W x 11" H x 15" D. How is the performance and wiring?
What kind of subwoofers does this fit?
This enclosure is precision-built for two (2) standard 8" round subwoofers. The cutout diameters are exactly 7.125" (7-1/8").
Will it fit in my vehicle?
Yes, it features a practical shared-space footprint designed to maximize dual-subwoofer output while keeping a space-conscious profile in your trunk or cargo area. The exact external dimensions are 30" W x 11" H x 15" 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 custom slot-port tuned to 34Hz to deliver incredibly deep, aggressive, and highly efficient low-frequency extension tailored perfectly to high-performance round 8-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 8-inch vented round woofer enclosure
- Compatible with two (2) standard 8" round subwoofers
- Constructed of 0.75" CNC-cut high-grade MDF
- High-grade black automotive carpet finish
- Upgraded 2" round nickel-plated binding posts
- Made in California, U.S.A.
- Enclosure volume: 1.50 ft^3 (before drivers' displacement)
- Peak tuning frequency (Fb): 34Hz
- Sub cutouts: 2x 7.125" (7-1/8") Round
- Max mounting depth: 10.25"
- Dimensions: 30"W x 11"H x 15"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
4.2 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Love these shorts.
Size: 4, Color: Jet Black
Five inch for a great mom fit. Cute button closures for the pockets on the back, nice deep pockets. It’s hard to see in the video because they are black but they are the comfiest shorts. True to size. I’m a size 3-4 and the 4 fits perfect…. Even after washing and drying.
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Reviewed in the United States on June 13, 2025
★★★★★ 5
Excellent quality!!!
Size: 10, Color: Ocean Breeze
Wow great quality!!! You get what you pay for that’s for sure!! The fabric is heavy-ish-indicative of quality fabric. Fit is spot on. I’m a barely size 10 (5’6” 160 lbs) and these shorts deliver!! The stretch is just perfect enough for comfort. Excited to wear these next summer!! Will watch for more sales so I can grab a couple more pairs. If you’re on the fence, get them!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025
★★★★★ 5
Good Quality
Size: 8, Color: Nautical Navy
These are really nice shorts. The fabric is nice quality. They do run a little large.
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Reviewed in the United States on August 27, 2025
★★★★★ 5
Love!
Size: 10, Color: Sailors Red
The quality is excellent. They are more of a faded red. I ordered a 10 worried they might be snug but that was a mistake. I should have stuck with my normal size 8. (I purchased an Amazon brand of this style that runs small and the size 10 feels more like an 8.) I love the length-not too short and not too long. They are sturdy cotton. There is not any stretch to the fabric. I’m giving them to a friend. I actually tried to shrink them by washing them in hot water and hot dryer but it didn’t make them fit me any better. Since they were already too big, I can’t really say if they shrunk by doing this. They weren’t huge on me before washing and seemed to fit the same way after. I tried wearing them all day and they seemed to loosen up even further. I was continuously pulling them up. I really feel like the sizing is accurate and you can be pretty confident of ordering your regular size. I’ve already reordered the size 8. I’ll update my review if there any issues with that size.
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Reviewed in the United States on July 19, 2025
★★★★★ 3
Unattractive but well made
Size: 4, Color: Sand
The style was unflattering overall. The shorts fit well in the waist, legs, and seat; they just made me look masculine which is not the look I was going for. For reference I am 5’7, 135#, and purchased a size 4 (which again, fit me well). I’m not sure if the issue was the length, or maybe they just down have a flattering cut - they are very boxy and hide any curves I have. 3 stars because the fit was good and they are well made. But just not attractive.
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Reviewed in the United States on May 4, 2026
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