2005-2009 Ford Mustang Sub Box Downfire Sealed


2005-2009 Ford Mustang Sub Box Downfire Sealed

Ford Mustangs have always been popular vehicles but the trunks have always made it difficult to put too elaborate of a sub box because of a small trunk opening and the late model 2005-09 Mustangs are no different. Not only is the trunk opening small, the trunk floor is not level so a regular box will not sit flat on the floor without coming all the way next to the trunk opening. With my down fire design, which is a bit odd for a trunk install, you can fit one or two 10s or 12s in your trunk with 5 1/2″ of mounting depth. Airspace is a bit on the small side with a shared 1.25cuft chamber but with the acoustic loading of the down fire design and the shared airspace of 2 subwoofers it sounds great. Plus with a down fire design you don’t have to worry about cargo in the trunk damaging a speaker.

This box is made out of 3/4″ MDF and is fully carpeted in matching trunk carpet. The nickle plated spring loaded speaker terminals are mounted on the back of the box and the speaker wires are soldered on for a solid and reliable connection.

This is a sealed subwoofer box. A sealed subwoofer box has a tight and punchy bass that is more articulate and more true to the music with a more natural sound. For customers who want louder deeper bass with the lower bass more pronounced. Because of the ported design, the bass will not be as tight and punchy, but there is double the bass of a sealed box with the same subs. If big bass is what you want then our ported box will be what you want.

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Contact Us About Your Options (This is only if your order requires some advanced customization. If you need a customization fee, we’ll let you know).

  • We use Stinger wire on all of our boxes.
  • Please enter the Brand and Model of the subwoofers you will be using.
  • $0.00

Additional information

Weight 40 lbs
Dimensions 33 × 14 × 11 in
Total Volume (CuFt)

Mounting Depth

Fit Location


Box Finish

Number of Speakers

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