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Description
LAB SlapBox™ 3.50 ft^3 Ported MDF Enclosure Box for Single Sundown Audio SA-15 SubwooferLAB SlapBox Series Engineered to Slap. Built to Last. Designed for subwoofer enthusiasts who want to blend raw output with musical precision, the LAB SlapBox is our flagship performance enclosure. Every SlapBox is optimized around a specific woofers T S parameters to deliver deep, accurate, and hard hitting bass. Tuned between 3234Hz depending on application, these boxes strike a powerful balance of SPL and SQgiving you loud, clean sound without
LAB SlapBox™ Series – Engineered to Slap. Built to Last.
Designed for subwoofer enthusiasts who want to blend raw output with musical precision, the LAB SlapBox™ is our flagship performance enclosure. Every SlapBox™ is optimized around a specific woofer’s T/S parameters to deliver deep, accurate, and hard-hitting bass. Tuned between 32–34Hz depending on application, these boxes strike a powerful balance of SPL and SQ—giving you loud, clean sound without sacrificing low-end extension. Constructed from CNC-cut MDF, sealed with industrial-grade adhesives, and finished in black automotive carpet, this enclosure is as tough as it is tuned. Built to move air. Built to Slap.
- Driver-Specific Precision
Designed specifically for the Sundown Audio SA-15 series subwoofer using the driver’s exact T/S specs to achieve peak response and balance. - Tuned to Perform
This enclosure features 3.50 cu. ft. of internal volume (net) and is tuned to 35Hz for a blend of power, low-end depth, and tight control. - ️ Built to Slap
Constructed from CNC-cut 3/4" MDF with a reinforced 1" front baffle and sealed with industrial-grade adhesive for maximum rigidity and durability. - Clean Look. Serious Output.
Finished in premium black automotive carpet, this box looks as good as it sounds—perfect for daily builds or competition-grade installs.
Features
- Ported enclosure for a single 15" Sundown Audio SA subwoofer
- Optimized for SA-15D2 / SA-15D4 models
- 3.50 cu. ft. internal volume (net), tuned to 35Hz
- Precision-cut 3/4" MDF with reinforced 1" front baffle
- Wrapped in high-grade black automotive carpet
- Heavy-duty speaker terminal
- Proudly made in California, U.S.A.
Technical Specifications
- Enclosure volume: 3.50 ft³ (net internal)
- Peak tuning frequency: 35Hz
- Port size: 16.50" x 3.25"
- Subwoofer cutout diameter: 14.125" (14-1/8")
- External dimensions: 32" W x 18" H x 18" 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 20 reviews
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Product Reviews
★★★★★ 5
Best device
Size: 3 FT
This is the best device. It can be turned off or on when used.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
★★★★★ 5
Great shelves!
Size: 10"D x 15.7"W, Color: Black, Size: 10"D x 15.7"W, Color: Black
Perfect for what I needed. I sanded them, painted them white, then hung them above my washing machine and dryer to hold some laundry supplies. They made laundry easier! The are sturdy. It took no time to install. They’re heavy but not so heavy that they sag or drag. It came with screws and anchors that made installation a breeze. They look great! Highly recommend.
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Stylish & sturdy 3 floating shelves
Size: 11.6"D x 15.7"W, Color: Black, Size: 11.6"D x 15.7"W, Color: Black
I bought these 12-inch deep floating shelves for my son’s room and they turned out great. The extra depth makes a big difference compared to standard floating shelves. He’s able to fit books, trophies, and some of his collectibles on them without everything feeling cramped.
The shelves feel sturdy and well made once installed. The hardware that came with them worked well, and they sit flush against the wall which gives that nice clean floating look. They really helped add storage while also making the room look more organized and put together. I added lights underneath which I also bought here on Amazon...
I also like that they’re deep enough to actually be functional, not just decorative. My son is using them every day and they’re holding up really well.
Overall I’m very happy with this purchase and would definitely buy them again for another room.
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Reviewed in the United States on March 12, 2026
★★★★★ 5
Good looking shelves
Size: 11.6"D x 15.7"W, Color: Black, Size: 11.6"D x 15.7"W, Color: Black
These shelves turned out perfect for my bedroom project! I read lots of reviews about people having trouble with the wall anchors not holding up, but I’m going to equate that to user error. I had no trouble installing these and even took a couple shortcuts.
I only used two wall anchors per shelf, but also pre checked the holes for studs. I used one dry wall screw per shelf as well. Knowing how wall anchors can be, I used one drill bit size smaller than the directions suggested. They said use 1/4, but I used 15/64. Probably could have gotten away with one smaller than that at 7/32.
With all screws, I made sure not to press too hard into the wall and just turn the screw. That helps the anchors and threads stay snug in the dry wall. There was only one shelf that came out feeling a little saggy, but I think it’s because the holes in the shelf are not quite right. However, it still holds strong and no problem with a box of shoes on it.
All this being said, I pre weighed my shoe boxes and knew I only needed to hold about 5-7 lbs. I was super detailed with measuring the bracket spots to make sure everything was spaced and leveled appropriately.
The wood on the shelves does feel a little cheap, but it looks great so I couldn’t care less. I would purchase these shelves again and might have to as my display collection continues to grow.
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Reviewed in the United States on March 20, 2026
★★★★★ 5
Easy install, wide and sturdy
Size: 10"D x 15.7"W, Color: Brown, Size: 10"D x 15.7"W, Color: Brown
I put these shelves in a strange little cubby that was created in my kitchen by removing the sad excuse for a pantry that was once there. Super easy to hang, I’ve only hung two here and have other plans for the 3rd one. Good purchase for sure. Very sturdy and look expensive, without the high cost.
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Reviewed in the United States on December 20, 2025
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