<> SINGLE SUB BOX 2009-2014 FORD F150 SUPERCREW - Sound Off Audio, Inc.
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Xtreme Enclosures


If you have subwoofer(s), type your sub model # here:

(Maximum Size: . Type: )

 Product Description



  • Fits single 8 or 10
  • Subwoofer fires down
  • Constructed with furniture grade MDF wood
  • Air space = .6 cubic ft
  • Mounting depth = 5.2 inches
  • Speaker terminal included
  • Carpeted in charcoal carpet
  • Available in OEM colored carpet to match your factory interior for an additional fee

When you order this sub box, please provide us with your sub model # if you have subs already.  You can type the sub model # in the comment section of the order page.


  • Order directly from our website or
  • Call us to place order over the phone by calling 850-674-6363

Popular subs customer use for this box:

  • JL Audio TW3
  • JL 8W1v3 and 10W1v3
  • JL 8W0 and 10W0
  • Alpine SWRT
  • Kicker CVT, CompRT, Comp, CompD and CompS
  • Sundown E series

We make custom subwoofer boxes for any vehicle or subwoofer you can imagine. We ship nationwide and have been in business for 20 years. If you have a woofer and you need a speaker box, look no further, these boxes are cnc cut and professionally constructed with pride in the USA; Florida to be exact. Call or text 850-674-6363 for any information. Thanks


  • Customers need to check their subwoofers' specifications to see if they will fit the sub box.  Customers may contact us if they are not sure.
  • Customers are responsible for providing us with their subwoofer model # at the time of purchase, so we can ensure it will fit.  
  • If customer doesn't have a subwoofer at the time of purchase, then ask us for our recommendation as to which subs will fit.  
  • We can't be held liable if a customer chooses a subwoofer larger than the specs provided for our sub box. 

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 Product Reviews

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  1. Quality Product

    Posted by Clay Wyant on 22nd Oct 2014

    The box I ordered was for a 10" Polk Audio MM1040 DVC 4ohm. I went with a 9 1/8" cutout diameter and if I had to do it over again would go with the 9 1/4" cutout just to aid in clearance for the wires when running the sub in 2ohm load. There was also plenty of clearance for the pole vent and did not touch at all. The box went in a 2013 F150 Super Crew and fit under the seat very well. A word to the wise, if you plan on using the same sub that I did and you have the Husky liner or Weather Tech cargo mat you will probably want to trim it to fit the box so that the box will sit on the carpet and give clearance for excursion of the sub under high volume. You could also do what I did and just turn the box so the sub is firing up which sounds absolutely fine and no real change from firing down. If your that nit picky about position of the sub then put in a seat lift and add some spacers.
    Overall the box is built of quality materials and has a very sturdy construction. There is no vibration of the box at all giving a very sub a nice deep tone highly recommend and will definitely be doing business in the future when audio upgrades happen. Thank you for a quality product.

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