1999-2007 GMC Sierra Extended Cab Sub Box Double Sealed

­The 1999-2007 GMC Sierra Extended Cab trucks have a ton of space under that rear seat, so why not fill it up with subs? This sub box is designed to go full width and has 2.0cuft of airspace which is great for two 10s or 12s. 8” subs could work, too, but the airspace is a little big for just 2, but 2 on each side can work for a total of four 8” subs. Let me know what subs you want and what configuration you want and I can make it happen for you. Also if you need more than 6.5” of mounting depth I can do a combination of steel and wooden bumps to give more mounting depth.

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.

This box is made out of 3/4″ MDF and is fully carpeted in matching 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.

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