If you're looking for a hard driving subwoofer that can sound great while playing loud then Definitive Audio Designs is the brand for you. DAD Subwoofers have been apart of the car audio community for years and have gained a reputation of quality, performance and output. Xplicit Audio is proud to partner with and introduce the DAD line of subwoofers to our store. Definitive subs currently come in a variety of sizes and power outputs to meet your audio demands and with new products on the horizon, Definitive subwoofers will always be a great choice. Definitive Audio Designs (DAD) is your audio company that builds components with a purpose.