When car audio started many years ago, U.S. made product dominated the speaker and amplifier categories.  Build quality was rock solid and performance was second to none.  With the desire to offer speakers and amplifiers based on "old school" principles, AD Designs was born in 2010 by Audio Dynamics which was founded in 1995.  Audio Dynamics teamed up with a U.S. world class speaker and amp manufacturer that has over 60 years of experience.  AD Designs speakers and amplifiers are hand assembled, incorporating cutting-edge technology and utilizing superior state-of-the-art components built to exact tolerances and specifications.  All of the components used on our subwoofers are the results of over 60 years of continuous development.