LAB OEM-Spec™ 0.30 ft^3 Sealed MDF Enclosure Box for Single JL Audio 8W3v3 Subwoofer
SKU: 85320316483

LAB OEM-Spec™ 0.30 ft^3 Sealed MDF Enclosure Box for Single JL Audio 8W3v3 Subwoofer

Sale price$103.49 Regular price$114.99
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Description

LAB OEM-Spec™ 0.30 ft^3 Sealed MDF Enclosure Box for Single JL Audio 8W3v3 SubwooferWhat exact subwoofer does this fit? This enclosure is precision built specifically for a single 8" JL Audio W3v3 subwoofer (model 8W3v3 4). The cutout diameter is perfectly matched at 7. 09" (7 3 32"). Will it fit in my vehicle? Yes, it is designed to maximize output while maintaining an incredibly small, space conscious footprint. The exact external dimensions are a compact 10" W x 10" H x 9. 5" D. How is the performance and wiring? This sealed


What exact subwoofer does this fit?
This enclosure is precision-built specifically for a single 8" JL Audio® W3v3 subwoofer (model 8W3v3-4). The cutout diameter is perfectly matched at 7.09" (7-3/32").

Will it fit in my vehicle?
Yes, it is designed to maximize output while maintaining an incredibly small, space-conscious footprint. The exact external dimensions are a compact 10" W x 10" H x 9.5" D.

How is the performance and wiring?
This sealed design delivers exceptionally tight, snappy, and responsive low-end accuracy (with a highly musical 0.783 Qtc alignment and an F3 of 54Hz). 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 W3v3 8-inch sealed woofer enclosure
  • Built using JL Audio®'s recommended sealed box design for a single 8" JL Audio® W3v3 sub (8W3v3-4)
  • 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: 0.30 ft^3 (net internal)
  • F3: 54Hz
  • Fc: 58.8Hz
  • Qtc: 0.783
  • Sub cutout diameter: 7.09" (7-3/32")
  • Dimensions: 10"W x 10"H x 9.5"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: 85320316483

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Bruce Crane
Cuba, US
★★★★★ 5
Great product
Style: 20W_USB-C, Size: 6FT
Works great
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Reviewed in the United States on March 31, 2026
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Joe R
Battle Creek, US
★★★★★ 4
Decent install power strip
Style: 20W_USB-C, Size: 6FT
I really like this search strip as I installed the inside of my RV the only problem I have with it is if you were using bulky transformer style plugs like that of a iMac laptop, charger or other big transformers, you will not be able to use the USB outlets in the center and I don’t know if that’s by design to limit current flow, but it sucks.
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Reviewed in the United States on May 20, 2026
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Ron barker
Grantham, US
★★★★★ 5
good value
Style: 20W_USB-C, Size: 6FT
works well
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Reviewed in the United States on April 16, 2026
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Verified Purchase
Cale Frederick
Bozeman, US
★★★★★ 5
An absolute must for countertops used as workstations.
Style: 20W_USB-C, Size: 6FT
These were the best thing I did when we had to remodel and I added a large built in countertop. They are made well, and easy to install! They are very versatile since they are designed with both USB-A and USB-C ports along with the standard 110V plugs. I use these with my 3-D printers, laser engravers, computers, printers, and even a few coffee pots!
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Reviewed in the United States on April 21, 2026
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Randy Browning
Grantham, US
★★★★★ 5
No issues, and no instructions.
Style: 20W_USB-C, Size: 6FT
No, you don’t need instructions, because the hole dimensions are in one of the photos. 4” x 1.73” is perfect. Plug it in and all of the ports in both that we bought worked perfectly.
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Reviewed in the United States on March 9, 2026

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