DD Audio mini Z D2In early 2005 the first ever iteration of the Z motor was launched. It forever changed the way people thought of a high performance subwoofer and pushed the limits of car audio to new extremes. Over the years, many versions of Zs have been produced and this spirit of experimentation has driven us to constantly improve and innovate. The Z2. 5 or Mini Z is the newest member of the Z ranks. It utilizes a smaller but no less impressive 13 lens grade N48