Universal Heavy Duty Series 10" Single Hole Vented Subwoofer Box (QHD110V) by QPower®. Size: 16" Width x 12.25" Height x 14.5" Dept. Upgrade your road warrior with QPower to get all the benefits from the musical energy. Provide your car's audio system with a kicking sound that is sure to make buddies green with envy. Drive your vehicle like you are at a concert and the car seats are a stage!