DS18 ZR212LD-PKG Bass Package 2 x ZR12D4 12" Subwoofers In a Ported Box with ZR2000.1D Class D 1-Channel Amplifier , and Ampkit0. The DS18 ZR212LD-PKG is a handpicked package made to help users take their first step on their journeys through sound. We’ve loaded this package with the essentials needed to achieve hard hitting heavy bass: the ZR212LD, the ZR2000.1D, and a user friendly 0-gauge installation kit. The ZR212LD provides dual 12-inch subwoofers loaded into a ported box for the listeners
