Custom speaker boxes. AK AudioAll of our speaker boxes are designed to hit hard without breaking apart. Just let us know what subs and how many! Purchase a subwoofer box custom made for your vehicle. Whether you own a truck or a car, our subwoofer enclosure and boxes are built specifically for your ride and guaranteed to fit. You can pick if you want your box square, round, sprayed or with black or gray carpet. Premium hand-built sub boxes built one at a time to order. Turn the bass up to high because with these enclosures there is no turning back. The wood boxes are usually finished either in carpet or custom upholstered to match an existing interior or finished in a distinctive way to set the custom enclosure apart. Your box specifications will match your vehicle, equipment, and personal preferences for a custom-tailored design that Pro Sound Innovations will fabricate into your built-to-order sub box. You have the option to choose from either 1) black or charcoal gray carpet (other colors available for additional charge) 2) Size of the box 3) Vinyl color 4) Text 5) Logos (additional charge may apply) 6 Subtomix custom subwoofer enclosures. 99 Truck Underseat Box - Custom Subwoofer Box - Subwoofer Box Design - Hand Built in the USA! FREE SHIPPING! Quality guaranteed! Brutal Sounds provides the highest quality performance subwoofers, amps and custom sub boxes. it vy exyr sow9 zxat gp hnpb tp5e meixz qijad