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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
LAB SlapBox™ Vented MDF Box Enclosure (w/ 14⅛” Cutout) for 15” Subwoofer (3.70 ft³ @ 35Hz)LAB SlapBox Series Engineered to Slap. Built to Last. The LAB SlapBox isn't your average prefabits a purpose built, high performance enclosure designed to get loud, hit low, and maintain clarity across a wide frequency range. Tuned between 3234Hz and built to handle serious output, each SlapBox is precision cut, ruggedly built, and ready to elevate your system. Whether you're chasing SPL, SQ, or a well rounded daily driver, this enclosure delivers
LAB SlapBox™ Series – Engineered to Slap. Built to Last.
The LAB SlapBox™ isn't your average prefab—it’s a purpose-built, high-performance enclosure designed to get loud, hit low, and maintain clarity across a wide frequency range. Tuned between 32–34Hz and built to handle serious output, each SlapBox™ is precision-cut, ruggedly built, and ready to elevate your system. Whether you're chasing SPL, SQ, or a well-rounded daily driver, this enclosure delivers dependable performance and aggressive sound.
- Universal Fitment
Designed to accommodate most standard 15" subwoofers that call for around 3.70 cu. ft. of ported airspace—ideal for custom trunk or hatch installs. - Tuned for Output and Clarity
Features 3.70 cu. ft. of internal airspace (before driver displacement) and is tuned to 35Hz for tight response and impressive low-end authority. - ️ Built to Slap
Constructed from CNC-cut 3/4" MDF with a reinforced 1" front baffle for strength and stability under heavy bass loads. - Durable and Clean
Wrapped in high-grade black automotive carpet for a professional appearance that fits cleanly into most vehicle applications.
Features
- Ported enclosure for a single 15" subwoofer
- Compatible with most standard or high-performance 15" subs
- 3.70 cu. ft. internal volume (before driver displacement), tuned to 35Hz
- Precision-cut 3/4" high-grade MDF with reinforced 1" front baffle
- Wrapped in premium black automotive-grade carpet
- Heavy-duty speaker terminal
- Proudly made in California, U.S.A.
Technical Specifications
- Enclosure volume: 3.70 ft³ (before driver displacement)
- 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
4.5 ★★★★★
Based on 946 reviews
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Product Reviews
★★★★★ 5
Good Buy
It's been more than a month it works great, no issues. Does not heat up, good material, compatible with both Mac and Windows, I have both OS laptops.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Great item!
works great. I can plug my backup into it and my printer, so I don't need to connect the printer to the internet.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
74 monte carlo Resto
Model: NewSLS50_52
Great product easy installation with sheets cut to size,using for Classic car Restoration,floor pan and doors
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Impressive Sound Deadening Solution with Enhanced Audio Quality
Model: NewSLS50_52
I recently purchased the Siless 50 mil (1.3mm) 52 sqft Car Sound Deadening mat, and I am delighted with the results it has delivered. Right from the start, I was impressed with the packaging, which ensured the product arrived in perfect condition.
One of the standout features of this sound deadening mat is its ease of use. It was a breeze to cut and modify according to my specific needs. Whether I needed to cover specific areas or customize the size, the mat accommodated my requirements effortlessly. This flexibility made the installation process a breeze.
The Siless Sound Deadening mat has proven to be highly effective in reducing outside noise within my vehicle. With just a half cabin install, I noticed a significant reduction of approximately 10 decibels, making my driving experience much quieter and more comfortable. The mat acted as a reliable barrier against external noise, allowing me to enjoy a more peaceful ride.
Furthermore, the sound quality from my vehicle's audio system experienced a noticeable improvement. The Siless mat effectively dampened vibrations and minimized resonance, resulting in cleaner and more refined audio output. The mat's thickness of 50 mil (1.3mm) ensures optimal sound absorption, contributing to its effectiveness in creating a quieter and more enjoyable driving environment. I can now appreciate the full range of tones and enjoy a more immersive music experience during my drives.
Overall, I highly recommend the Siless 50 mil Car Sound Deadening mat for anyone seeking a reliable and effective solution to reduce noise and enhance audio quality in their vehicle. The easy cutting and modifying process, along with the excellent packaging, contribute to a seamless installation experience. With a significant reduction in outside noise and an improvement in sound system performance, this sound deadening mat has exceeded my expectations.
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Reviewed in the United States on May 27, 2023
★★★★★ 5
Good quality sound deadener at a good price.
Model: NewSLS50_52
Quality sound deadening that adheres to body panels well. You can easily hear the vibration reduction after just the first piece by tapping on the body panel before and after.
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Reviewed in the United States on November 21, 2025
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