The Hertz DBX 30.3 is a car audio subwoofer enclosure that houses the DS subwoofer unit to enhance low-range performance and deliver punchy, dynamic, surrounding bass while preserving overall acoustics.

The enclosure is constructed from very thick MDF for a rigid, stable structure that does not affect acoustic response. The rear slanted panel reduces back-wave reflections and eases installation, optimizing available vehicle space for a quick, minimally invasive fit.