Truck Underseat Subwoofer Boxes

SMS Car Audio builds and sells truck underseat subwoofer boxes for customers who want strong bass without giving up valuable cabin space. Underseat enclosures are a popular upgrade for Chevy, GMC, Ford, Ram, and other truck platforms.

Built Around Fitment and Bass

A truck subwoofer box should be planned around seat clearance, available airspace, subwoofer depth, amplifier power, and the kind of bass the customer wants. Generic boxes do not always match the vehicle or the subwoofer correctly.

Truck Box Options

• Chevy underseat boxes
• Ford underseat boxes
• Single and dual subwoofer options
• Built-to-order enclosures
• Custom fitment planning
• System package planning

Before Ordering

Confirm your truck year, cab style, seat configuration, seat lift requirements, subwoofer model, amplifier power, and finish preferences before ordering.