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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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For Your Every Summer RSVP, with Code: SUMMER15
Description
LAB SlapBox™ Vented MDF Box Enclosure for Sundown Audio SA-Class / SA-Series V.2 15” Subwoofer (3.50 ft³ @ 35Hz)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 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 122 reviews
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Product Reviews
★★★★★ 5
Easy to use
Color: Navy, Size: 10 Foot, Color: Navy, Size: 10 Foot
Easy setup and easy use, cranks open very smoothly with no trouble. The fabric is opaque (not light filtering) and sturdy with edges sewn to last. This umbrella provides ample shade and sun protection. It works great and is pretty much as expected. I do find the tilt feature a tad tricky sometimes, maybe becsuse I’ve got smaller hands idk, but other than that it’s great.
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Reviewed in the United States on May 21, 2026
★★★★★ 4
Budget Baddie...
Color: Tan, Size: 9 Foot
This is a quality/durable self driven (me) beast of an umbrella replacement...It has good color and we chose the Tan 9ft. Easy usage for its weight class all while being budget friendly... atmospheric presence of richness & sturdiness, and very easy to open and close to adjust to this unit's comforts. I haven't put this umbrella out for the season as of yet... because the snow is still present on the grounds of New England! "WE WINN"
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Reviewed in the United States on March 23, 2026
★★★★★ 5
Beautiful and works great.
Color: Navy, Size: 10 Foot, Color: Navy, Size: 10 Foot
I decided to try this because my old umbrella had seen better days and it was time to replace it.
I am very pleased with the quality and the ease of assembly with this umbrella.
It’s very sturdy and I like the quality of the fabric and the metal. It’s very easy to open and close and it makes my patio look great.
It gives me the perfect amount of shade and the fabric thickness is perfect at keeping the harsh sunbeams from getting through.
I also think the price is great for what you get.
I would definitely recommend this umbrella because it’s made well and works well. It’s also very easy to clean. I just use my garden hose and spray it down and let it air dry.
It also fit perfectly in the stand I already had and it works great. I am very happy I got to try this out.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Great replacement patio table umbrella.
Color: Tan, Size: 10 Foot
After a windstorm destroyed my old umbrella on our patio set, I was looking for a new one that wouldn't break the bank but also held up to the direct sun of the summer months.
This umbrella did not disappoint! The material part of the umbrella top seems like it is nice and thick and the stitching is overlapped in the corners which should provide a lot of strength for the windy days. I really like the neutral colors of the fabric, as that will go well with the rest of my outdoor furniture.
The medal pole portion is perfectly straight and the pivot point connection seems nice and tight. I would think that this umbrella will stand the test of time.
No assembly needed, just pull it out of the box and extend the fabric.
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Reviewed in the United States on February 26, 2026
★★★★★ 1
Incorrect height shown in listing image.
Color: Tan, Size: 9 Foot
I purchased these for their tall height to go in the ground, but they are too short and I hit my head on them. The height shown in Amazon's pictures does not match the actual height for the 9- and 10-foot umbrella. The heights are something more like 90-95 inches rather than the 108 and 120 inches indicated. The 9- and 10-foot umbrella description seems to refer to the diameter of the umbrella instead. I have returned them, but Amazon has not yet corrected the listing.
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Reviewed in the United States on May 5, 2026