SKU: 86712672336

LAB OEM-Spec™ 1.125 ft^3 Ported Shallow-Mount MDF Enclosure Box for Single JL Audio 12TW1 Subwoofer

Sale price$94.50 Regular price$105.00
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Description

LAB OEM-Spec™ 1.125 ft^3 Ported Shallow-Mount MDF Enclosure Box for Single JL Audio 12TW1 SubwooferWhat exact subwoofer does this fit? This enclosure is precision built specifically for a single 12" JL Audio TW1 shallow mount subwoofer (models 12TW1 2 or 12TW1 4). The cutout diameter is perfectly matched at 11. 0625" (11 1 16"). Will it fit in my vehicle's tight spaces? Yes, it is designed specifically for tight and stealthy applications. The exact external dimensions are 31. 75" W x 16" H x 7" D, giving you a slim, 7 inch deep footprint. How is


What exact subwoofer does this fit?
This enclosure is precision-built specifically for a single 12" JL Audio® TW1 shallow-mount subwoofer (models 12TW1-2 or 12TW1-4). The cutout diameter is perfectly matched at 11.0625" (11-1/16").

Will it fit in my vehicle's tight spaces?
Yes, it is designed specifically for tight and stealthy applications. The exact external dimensions are 31.75" W x 16" H x 7" D, giving you a slim, 7-inch deep footprint.

How is the performance and wiring?
This is a vented/ported design tuned optimally to 34Hz for serious low-end extension (down to 31.52Hz F3) without distortion. It features an upgraded 2" round nickel-plated binding post for secure and reliable wiring connections.

   

OEM-Spec™ Enclosures: Purpose-Built for JL Audio®

   

Dropping a premium JL Audio® subwoofer into a cheap leaky box is a quick way to leave performance on the table. Our LAB OEM-Spec™ enclosures aren't trying to reinvent the wheel. Instead, they are precision-built tools manufactured right here in the USA to do exactly what JL Audio® intended.

   

We construct these with rock-solid 3/4” CNC-cut MDF and feature 1” or thicker front baffles on select models to support heavier motors. These enclosures follow JL Audio’s exact volumetric blueprints to the letter. By utilizing their highly efficient smaller-airspace designs, you get two very practical benefits. You get increased mechanical power handling to keep your sub safe from over-excursion, and you gain a significantly smaller footprint in your trunk.

   

Available in both ported and sealed configurations for most JL Audio® drivers, the OEM-Spec™ line delivers the accurate, hard-hitting bass JL is famous for at a price point that actually makes sense.

        

Why It Hits the Mark:

   
           
  • Factory-Tuned Precision: Built exclusively to JL Audio® factory specs for optimal Thiele/Small (T/S) parameter matching.
  •        
  • Heavy-Duty Construction: 100% 3/4” CNC-cut MDF with ultra-thick front baffles on select models for maximum structural integrity.
  •        
  • American Made: Designed, cut, and assembled in the USA for strict quality control.
  •    

Technical Specifications:
  • JL Audio® designed TW1 12-inch vented shallow-mount woofer enclosure
  • Built using JL Audio®'s recommended ported box design for a single 12" JL Audio® TW1 sub (12TW1-2 / 12TW1-4)
  • Constructed of 0.75" CNC-cut high-grade MDF
  • High-grade black automotive carpet finish
  • Upgraded 2" round nickel-plated binding post
  • Made in California, U.S.A.

  • Enclosure volume: 1.125 ft^3 (net internal)
  • Peak tuning frequency (Fb): 34Hz
  • F3: 31.52Hz
  • Sub cutout diameter: 11.0625" (11-1/16")
  • Dimensions: 31.75"W x 16"H x 7"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: 86712672336

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4.1 ★★★★★
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tianyi li
Pawtucket, US
★★★★★ 5
High-Quality Car Air Filter – Great Performance!
Size: 1-Pack
Ease of Installation: 5/5 This air filter was incredibly easy to install. It fits perfectly in my car model, and the instructions were clear, even for someone like me who isn’t very mechanically inclined. I had it swapped out in just a few minutes, and it didn’t require any special tools or expertise. Super convenient! Performance: 5/5 Since replacing the old filter with this one, I’ve noticed an immediate improvement in my car’s performance. The engine seems to run smoother, and I’ve even experienced a slight boost in fuel efficiency. The air filter does a great job of keeping dirt, debris, and contaminants out of the engine, which can only help with the long-term performance of the vehicle. Build Quality: 5/5 The filter feels sturdy and durable. The material seems top-notch, and you can tell it’s made to last. I’ve used other filters in the past that felt flimsy, but this one gives me confidence that it’s doing a great job of protecting the engine. Plus, it seems to be designed for better airflow, which should improve overall engine efficiency. Value for Money: 5/5 Given the reasonable price for such a high-quality product, this air filter is definitely worth it. It’s a small investment that can help maintain your car’s performance and keep things running smoothly. Considering how important air filters are for engine longevity, this is an excellent deal. Overall: 5/5 I highly recommend this car air filter. It’s affordable, easy to install, and delivers noticeable results. If you’re looking for a reliable replacement that can keep your engine running efficiently, this filter is a solid choice!
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Reviewed in the United States on May 5, 2025
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Verified Purchase
Panthersfan
Birmingham, US
★★★★★ 5
Great cabin air filter, very easy to install
Size: 1-Pack
.“Great, affordable cabin air filter that fit my 2024 Toyota Corolla Hybrid perfectly. My Toyota dealership wanted $60 to replace it, but I was able to install this one myself in under 15 minutes. Easy, cheap, and works exactly as it should.”
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Reviewed in the United States on May 25, 2026
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Ron Haas
Lake Worth, US
★★★★★ 5
Perfect fit and inexpensive
Size: 1-Pack
These are cheap and an easy fix to keep your car's HVAC running well. At this price you should replace these annually.
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Reviewed in the United States on May 5, 2026
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Bradley Carlsen
Cuba, US
★★★★★ 5
Clean 2016 Prius
Size: 1-Pack
Fit my 2016 Prius good. I have had it installed for 10,000 miles and seems to work good still. With a nasty truck or old oil burner around me (windows up) I can smell some fumes but not much. Fumes might be coming from other sources like Worn window seals or firewall wire passages. If I flip the switch to recirculated air, I don't smell much. Great for the price and will buy another when I need it. Filter was great for winter driving. Better protection than stock. I forgot there was dog smell in the car.
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Reviewed in the United States on February 25, 2026
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Amazon Customer
Houston, US
★★★★★ 4
Good air filter
Size: 1-Pack, Size: 1-Pack
This cabin air filter looks well made and fits perfectly. Installation is very easy, and once installed you can notice cleaner airflow inside the vehicle. For the price, it offers solid performance and is a great alternative to the OEM filter. The only reason I’m giving it 4 stars instead of 5 is that the material feels slightly thinner than the original filter, so it may need to be replaced a bit more often. That said, it still filters well and works as expected.
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Reviewed in the United States on December 23, 2025

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